[#536] blobovnicza: Add blobovniczatree DB cache

Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>

.forgejo/workflows/build.yml

@@ -24,6 +24,7 @@ jobs:
 
       - name: Build CLI
         run: make bin/frostfs-cli
+      - run: bin/frostfs-cli --version
 
       - name: Build NODE
         run: make bin/frostfs-node
@@ -33,6 +34,8 @@ jobs:
 
       - name: Build ADM
         run: make bin/frostfs-adm
+      - run: bin/frostfs-adm --version
 
       - name: Build LENS
         run: make bin/frostfs-lens
+      - run: bin/frostfs-lens --version

.golangci.yml

@@ -38,13 +38,14 @@ linters-settings:
       pkg: git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object
       alias: objectSDK
   custom:
-    noliteral:
+    truecloudlab-linters:
       path: bin/external_linters.so
       original-url: git.frostfs.info/TrueCloudLab/linters.git
       settings:
-        target-methods : ["reportFlushError", "reportError"]
+        noliteral:
-        disable-packages: ["codes", "err", "res","exec"]
+          target-methods : ["reportFlushError", "reportError"]
-        constants-package: "git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
+          disable-packages: ["codes", "err", "res","exec"]
+          constants-package: "git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
 
 linters:
   enable:
@@ -77,6 +78,6 @@ linters:
     - gocognit
     - contextcheck
     - importas
-    - noliteral
+    - truecloudlab-linters
   disable-all: true
   fast: false

Makefile

@@ -9,6 +9,7 @@ HUB_TAG ?= "$(shell echo ${VERSION} | sed 's/^v//')"
 
 GO_VERSION ?= 1.21
 LINT_VERSION ?= 1.54.0
+TRUECLOUDLAB_LINT_VERSION ?= 0.0.2
 ARCH = amd64
 
 BIN = bin
@@ -26,7 +27,7 @@ PKG_VERSION ?= $(shell echo $(VERSION) | sed "s/^v//" | \
 			sed "s/-/~/")-${OS_RELEASE}
 
 OUTPUT_LINT_DIR ?= $(shell pwd)/bin
-LINT_DIR = $(OUTPUT_LINT_DIR)/golangci-lint-$(LINT_VERSION)
+LINT_DIR = $(OUTPUT_LINT_DIR)/golangci-lint-$(LINT_VERSION)-v$(TRUECLOUDLAB_LINT_VERSION)
 TMP_DIR := .cache
 
 .PHONY: help all images dep clean fmts fmt imports test lint docker/lint
@@ -139,7 +140,7 @@ pre-commit-run:
 lint-install:
 	@mkdir -p $(TMP_DIR)
 	@rm -rf $(TMP_DIR)/linters
-	@git clone --depth 1 https://git.frostfs.info/TrueCloudLab/linters.git $(TMP_DIR)/linters
+	@git -c advice.detachedHead=false clone --branch v$(TRUECLOUDLAB_LINT_VERSION) https://git.frostfs.info/TrueCloudLab/linters.git $(TMP_DIR)/linters
 	@@make -C $(TMP_DIR)/linters lib CGO_ENABLED=1 OUT_DIR=$(OUTPUT_LINT_DIR)
 	@rm -rf $(TMP_DIR)/linters
 	@rmdir $(TMP_DIR) 2>/dev/null || true

cmd/frostfs-adm/internal/modules/morph/deploy.go

@@ -145,12 +145,12 @@ func registerNNS(nnsCs *state.Contract, c *initializeContext, zone string, domai
 
 		emit.AppCall(bw.BinWriter, nnsCs.Hash, "register", callflag.All,
 			zone, c.CommitteeAcc.Contract.ScriptHash(),
-			"ops@nspcc.ru", int64(3600), int64(600), int64(defaultExpirationTime), int64(3600))
+			frostfsOpsEmail, int64(3600), int64(600), int64(defaultExpirationTime), int64(3600))
 		emit.Opcodes(bw.BinWriter, opcode.ASSERT)
 
 		emit.AppCall(bw.BinWriter, nnsCs.Hash, "register", callflag.All,
 			domain, c.CommitteeAcc.Contract.ScriptHash(),
-			"ops@nspcc.ru", int64(3600), int64(600), int64(defaultExpirationTime), int64(3600))
+			frostfsOpsEmail, int64(3600), int64(600), int64(defaultExpirationTime), int64(3600))
 		emit.Opcodes(bw.BinWriter, opcode.ASSERT)
 	} else {
 		s, ok, err := c.nnsRegisterDomainScript(nnsCs.Hash, cs.Hash, domain)

cmd/frostfs-adm/internal/modules/morph/initialize_nns.go

@@ -27,6 +27,8 @@ import (
 
 const defaultExpirationTime = 10 * 365 * 24 * time.Hour / time.Second
 
+const frostfsOpsEmail = "ops@frostfs.info"
+
 func (c *initializeContext) setNNS() error {
 	nnsCs, err := c.Client.GetContractStateByID(1)
 	if err != nil {
@@ -40,7 +42,7 @@ func (c *initializeContext) setNNS() error {
 		bw := io.NewBufBinWriter()
 		emit.AppCall(bw.BinWriter, nnsCs.Hash, "register", callflag.All,
 			"frostfs", c.CommitteeAcc.Contract.ScriptHash(),
-			"ops@nspcc.ru", int64(3600), int64(600), int64(defaultExpirationTime), int64(3600))
+			frostfsOpsEmail, int64(3600), int64(600), int64(defaultExpirationTime), int64(3600))
 		emit.Opcodes(bw.BinWriter, opcode.ASSERT)
 		if err := c.sendCommitteeTx(bw.Bytes(), true); err != nil {
 			return fmt.Errorf("can't add domain root to NNS: %w", err)
@@ -122,7 +124,7 @@ func (c *initializeContext) emitUpdateNNSGroupScript(bw *io.BufBinWriter, nnsHas
 	if isAvail {
 		emit.AppCall(bw.BinWriter, nnsHash, "register", callflag.All,
 			morphClient.NNSGroupKeyName, c.CommitteeAcc.Contract.ScriptHash(),
-			"ops@nspcc.ru", int64(3600), int64(600), int64(defaultExpirationTime), int64(3600))
+			frostfsOpsEmail, int64(3600), int64(600), int64(defaultExpirationTime), int64(3600))
 		emit.Opcodes(bw.BinWriter, opcode.ASSERT)
 	}
 
@@ -170,7 +172,7 @@ func (c *initializeContext) nnsRegisterDomainScript(nnsHash, expectedHash util.U
 		bw := io.NewBufBinWriter()
 		emit.AppCall(bw.BinWriter, nnsHash, "register", callflag.All,
 			domain, c.CommitteeAcc.Contract.ScriptHash(),
-			"ops@nspcc.ru", int64(3600), int64(600), int64(defaultExpirationTime), int64(3600))
+			frostfsOpsEmail, int64(3600), int64(600), int64(defaultExpirationTime), int64(3600))
 		emit.Opcodes(bw.BinWriter, opcode.ASSERT)
 
 		if bw.Err != nil {

cmd/frostfs-cli/internal/client/client.go

@@ -176,8 +176,8 @@ func DeleteContainer(ctx context.Context, prm DeleteContainerPrm) (res DeleteCon
 
 // EACLPrm groups parameters of EACL operation.
 type EACLPrm struct {
-	commonPrm
+	Client       *client.Client
-	client.PrmContainerEACL
+	ClientParams client.PrmContainerEACL
 }
 
 // EACLRes groups the resulting values of EACL operation.
@@ -194,15 +194,15 @@ func (x EACLRes) EACL() eacl.Table {
 //
 // Returns any error which prevented the operation from completing correctly in error return.
 func EACL(ctx context.Context, prm EACLPrm) (res EACLRes, err error) {
-	res.cliRes, err = prm.cli.ContainerEACL(ctx, prm.PrmContainerEACL)
+	res.cliRes, err = prm.Client.ContainerEACL(ctx, prm.ClientParams)
 
 	return
 }
 
 // SetEACLPrm groups parameters of SetEACL operation.
 type SetEACLPrm struct {
-	commonPrm
+	Client       *client.Client
-	client.PrmContainerSetEACL
+	ClientParams client.PrmContainerSetEACL
 }
 
 // SetEACLRes groups the resulting values of SetEACL operation.
@@ -217,7 +217,7 @@ type SetEACLRes struct{}
 //
 // Returns any error which prevented the operation from completing correctly in error return.
 func SetEACL(ctx context.Context, prm SetEACLPrm) (res SetEACLRes, err error) {
-	_, err = prm.cli.ContainerSetEACL(ctx, prm.PrmContainerSetEACL)
+	_, err = prm.Client.ContainerSetEACL(ctx, prm.ClientParams)
 
 	return
 }
@@ -563,28 +563,19 @@ func (x GetObjectRes) Header() *objectSDK.Object {
 // Returns any error which prevented the operation from completing correctly in error return.
 // For raw reading, returns *object.SplitInfoError error if object is virtual.
 func GetObject(ctx context.Context, prm GetObjectPrm) (*GetObjectRes, error) {
-	var getPrm client.PrmObjectGet
+	cnr := prm.objAddr.Container()
-	getPrm.FromContainer(prm.objAddr.Container())
+	obj := prm.objAddr.Object()
-	getPrm.ByID(prm.objAddr.Object())
 
-	if prm.sessionToken != nil {
+	getPrm := client.PrmObjectGet{
-		getPrm.WithinSession(*prm.sessionToken)
+		XHeaders:    prm.xHeaders,
+		BearerToken: prm.bearerToken,
+		Session:     prm.sessionToken,
+		Raw:         prm.raw,
+		Local:       prm.local,
+		ContainerID: &cnr,
+		ObjectID:    &obj,
 	}
 
-	if prm.bearerToken != nil {
-		getPrm.WithBearerToken(*prm.bearerToken)
-	}
-
-	if prm.raw {
-		getPrm.MarkRaw()
-	}
-
-	if prm.local {
-		getPrm.MarkLocal()
-	}
-
-	getPrm.WithXHeaders(prm.xHeaders...)
-
 	rdr, err := prm.cli.ObjectGetInit(ctx, getPrm)
 	if err != nil {
 		return nil, fmt.Errorf("init object reading on client: %w", err)
@@ -639,29 +630,20 @@ func (x HeadObjectRes) Header() *objectSDK.Object {
 // Returns any error which prevented the operation from completing correctly in error return.
 // For raw reading, returns *object.SplitInfoError error if object is virtual.
 func HeadObject(ctx context.Context, prm HeadObjectPrm) (*HeadObjectRes, error) {
-	var cliPrm client.PrmObjectHead
+	cnr := prm.objAddr.Container()
-	cliPrm.FromContainer(prm.objAddr.Container())
+	obj := prm.objAddr.Object()
-	cliPrm.ByID(prm.objAddr.Object())
 
-	if prm.sessionToken != nil {
+	headPrm := client.PrmObjectHead{
-		cliPrm.WithinSession(*prm.sessionToken)
+		XHeaders:    prm.xHeaders,
+		BearerToken: prm.bearerToken,
+		Session:     prm.sessionToken,
+		Raw:         prm.raw,
+		Local:       prm.local,
+		ContainerID: &cnr,
+		ObjectID:    &obj,
 	}
 
-	if prm.bearerToken != nil {
+	res, err := prm.cli.ObjectHead(ctx, headPrm)
-		cliPrm.WithBearerToken(*prm.bearerToken)
-	}
-
-	if prm.raw {
-		cliPrm.MarkRaw()
-	}
-
-	if prm.local {
-		cliPrm.MarkLocal()
-	}
-
-	cliPrm.WithXHeaders(prm.xHeaders...)
-
-	res, err := prm.cli.ObjectHead(ctx, cliPrm)
 	if err != nil {
 		return nil, fmt.Errorf("read object header via client: %w", err)
 	}
@@ -862,32 +844,22 @@ type PayloadRangeRes struct{}
 // Returns any error which prevented the operation from completing correctly in error return.
 // For raw reading, returns *object.SplitInfoError error if object is virtual.
 func PayloadRange(ctx context.Context, prm PayloadRangePrm) (*PayloadRangeRes, error) {
-	var cliPrm client.PrmObjectRange
+	cnr := prm.objAddr.Container()
-	cliPrm.FromContainer(prm.objAddr.Container())
+	obj := prm.objAddr.Object()
-	cliPrm.ByID(prm.objAddr.Object())
 
-	if prm.sessionToken != nil {
+	rangePrm := client.PrmObjectRange{
-		cliPrm.WithinSession(*prm.sessionToken)
+		XHeaders:    prm.xHeaders,
+		BearerToken: prm.bearerToken,
+		Session:     prm.sessionToken,
+		Raw:         prm.raw,
+		Local:       prm.local,
+		ContainerID: &cnr,
+		ObjectID:    &obj,
+		Offset:      prm.rng.GetOffset(),
+		Length:      prm.rng.GetLength(),
 	}
 
-	if prm.bearerToken != nil {
+	rdr, err := prm.cli.ObjectRangeInit(ctx, rangePrm)
-		cliPrm.WithBearerToken(*prm.bearerToken)
-	}
-
-	if prm.raw {
-		cliPrm.MarkRaw()
-	}
-
-	if prm.local {
-		cliPrm.MarkLocal()
-	}
-
-	cliPrm.SetOffset(prm.rng.GetOffset())
-	cliPrm.SetLength(prm.rng.GetLength())
-
-	cliPrm.WithXHeaders(prm.xHeaders...)
-
-	rdr, err := prm.cli.ObjectRangeInit(ctx, cliPrm)
 	if err != nil {
 		return nil, fmt.Errorf("init payload reading: %w", err)
 	}

cmd/frostfs-cli/modules/container/get_eacl.go

@@ -8,6 +8,7 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-cli/internal/commonflags"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-cli/internal/key"
 	commonCmd "git.frostfs.info/TrueCloudLab/frostfs-node/cmd/internal/common"
+	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client"
 	"github.com/spf13/cobra"
 )
 
@@ -20,9 +21,12 @@ var getExtendedACLCmd = &cobra.Command{
 		pk := key.GetOrGenerate(cmd)
 		cli := internalclient.GetSDKClientByFlag(cmd, pk, commonflags.RPC)
 
-		var eaclPrm internalclient.EACLPrm
+		eaclPrm := internalclient.EACLPrm{
-		eaclPrm.SetClient(cli)
+			Client: cli,
-		eaclPrm.SetContainer(id)
+			ClientParams: client.PrmContainerEACL{
+				ContainerID: &id,
+			},
+		}
 
 		res, err := internalclient.EACL(cmd.Context(), eaclPrm)
 		commonCmd.ExitOnErr(cmd, "rpc error: %w", err)

cmd/frostfs-cli/modules/container/set_eacl.go

@@ -10,6 +10,7 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-cli/internal/commonflags"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-cli/internal/key"
 	commonCmd "git.frostfs.info/TrueCloudLab/frostfs-node/cmd/internal/common"
+	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client"
 	"github.com/spf13/cobra"
 )
 
@@ -48,12 +49,12 @@ Container ID in EACL table will be substituted with ID from the CLI.`,
 			cmd.Println("ACL extension is enabled in the container, continue processing.")
 		}
 
-		var setEACLPrm internalclient.SetEACLPrm
+		setEACLPrm := internalclient.SetEACLPrm{
-		setEACLPrm.SetClient(cli)
+			Client: cli,
-		setEACLPrm.SetTable(*eaclTable)
+			ClientParams: client.PrmContainerSetEACL{
-
+				Table:   eaclTable,
-		if tok != nil {
+				Session: tok,
-			setEACLPrm.WithinSession(*tok)
+			},
 		}
 
 		_, err := internalclient.SetEACL(cmd.Context(), setEACLPrm)
@@ -65,9 +66,12 @@ Container ID in EACL table will be substituted with ID from the CLI.`,
 
 			cmd.Println("awaiting...")
 
-			var getEACLPrm internalclient.EACLPrm
+			getEACLPrm := internalclient.EACLPrm{
-			getEACLPrm.SetClient(cli)
+				Client: cli,
-			getEACLPrm.SetContainer(id)
+				ClientParams: client.PrmContainerEACL{
+					ContainerID: &id,
+				},
+			}
 
 			for i := 0; i < awaitTimeout; i++ {
 				time.Sleep(1 * time.Second)

cmd/frostfs-lens/internal/flags.go

@@ -37,6 +37,6 @@ func AddOutputFileFlag(cmd *cobra.Command, v *string) {
 
 // AddDBTypeFlag adds the DB type flag to the passed cobra command.
 func AddDBTypeFlag(cmd *cobra.Command, v *string) {
-	cmd.Flags().StringVar(v, flagOutFile, "bbolt",
+	cmd.Flags().StringVar(v, flagDBType, "bbolt",
 		"Type of DB used by write cache (default: bbolt)")
 }

cmd/frostfs-node/cache.go

@@ -142,7 +142,8 @@ func (c *lruNetCache) get(key uint64) (*netmapSDK.NetMap, error) {
 // wrapper over TTL cache of values read from the network
 // that implements container storage.
 type ttlContainerStorage struct {
-	*ttlNetCache[cid.ID, *container.Container]
+	containerCache *ttlNetCache[cid.ID, *container.Container]
+	delInfoCache   *ttlNetCache[cid.ID, *container.DelInfo]
 }
 
 func newCachedContainerStorage(v container.Source, ttl time.Duration) ttlContainerStorage {
@@ -151,18 +152,31 @@ func newCachedContainerStorage(v container.Source, ttl time.Duration) ttlContain
 	lruCnrCache := newNetworkTTLCache(containerCacheSize, ttl, func(id cid.ID) (*container.Container, error) {
 		return v.Get(id)
 	})
+	lruDelInfoCache := newNetworkTTLCache(containerCacheSize, ttl, func(id cid.ID) (*container.DelInfo, error) {
+		return v.DeletionInfo(id)
+	})
 
-	return ttlContainerStorage{lruCnrCache}
+	return ttlContainerStorage{
+		containerCache: lruCnrCache,
+		delInfoCache:   lruDelInfoCache,
+	}
 }
 
 func (s ttlContainerStorage) handleRemoval(cnr cid.ID) {
-	s.set(cnr, nil, new(apistatus.ContainerNotFound))
+	s.containerCache.set(cnr, nil, new(apistatus.ContainerNotFound))
+
+	// The removal invalidates possibly stored error response.
+	s.delInfoCache.remove(cnr)
 }
 
 // Get returns container value from the cache. If value is missing in the cache
 // or expired, then it returns value from side chain and updates the cache.
 func (s ttlContainerStorage) Get(cnr cid.ID) (*container.Container, error) {
-	return s.get(cnr)
+	return s.containerCache.get(cnr)
+}
+
+func (s ttlContainerStorage) DeletionInfo(cnr cid.ID) (*container.DelInfo, error) {
+	return s.delInfoCache.get(cnr)
 }
 
 type ttlEACLStorage struct {

cmd/frostfs-node/config.go

@@ -174,6 +174,7 @@ type subStorageCfg struct {
 	// blobovnicza-specific
 	size            uint64
 	width           uint64
+	leafWidth       uint64
 	openedCacheSize int
 }
 
@@ -288,6 +289,7 @@ func (a *applicationConfiguration) setShardStorageConfig(newConfig *shardCfg, ol
 			sCfg.size = sub.Size()
 			sCfg.depth = sub.ShallowDepth()
 			sCfg.width = sub.ShallowWidth()
+			sCfg.leafWidth = sub.LeafWidth()
 			sCfg.openedCacheSize = sub.OpenedCacheSize()
 		case fstree.Type:
 			sub := fstreeconfig.From((*config.Config)(storagesCfg[i]))
@@ -509,6 +511,8 @@ type cfgObject struct {
 	cfgLocalStorage cfgLocalStorage
 
 	tombstoneLifetime uint64
+
+	skipSessionTokenIssuerVerification bool
 }
 
 type cfgNotifications struct {
@@ -675,8 +679,9 @@ func initCfgGRPC() cfgGRPC {
 
 func initCfgObject(appCfg *config.Config) cfgObject {
 	return cfgObject{
-		pool:              initObjectPool(appCfg),
+		pool:                               initObjectPool(appCfg),
-		tombstoneLifetime: objectconfig.TombstoneLifetime(appCfg),
+		tombstoneLifetime:                  objectconfig.TombstoneLifetime(appCfg),
+		skipSessionTokenIssuerVerification: objectconfig.Put(appCfg).SkipSessionTokenIssuerVerification(),
 	}
 }
 
@@ -774,6 +779,7 @@ func (c *cfg) getSubstorageOpts(shCfg shardCfg) []blobstor.SubStorage {
 				blobovniczatree.WithBlobovniczaSize(sRead.size),
 				blobovniczatree.WithBlobovniczaShallowDepth(sRead.depth),
 				blobovniczatree.WithBlobovniczaShallowWidth(sRead.width),
+				blobovniczatree.WithBlobovniczaLeafWidth(sRead.leafWidth),
 				blobovniczatree.WithOpenedCacheSize(sRead.openedCacheSize),
 				blobovniczatree.WithLogger(c.log),
 			}

cmd/frostfs-node/config/engine/config_test.go

@@ -94,6 +94,7 @@ func TestEngineSection(t *testing.T) {
 				require.EqualValues(t, 1, blz.ShallowDepth())
 				require.EqualValues(t, 4, blz.ShallowWidth())
 				require.EqualValues(t, 50, blz.OpenedCacheSize())
+				require.EqualValues(t, 10, blz.LeafWidth())
 
 				require.Equal(t, "tmp/0/blob", ss[1].Path())
 				require.EqualValues(t, 0644, ss[1].Perm())
@@ -142,6 +143,7 @@ func TestEngineSection(t *testing.T) {
 				require.EqualValues(t, 1, blz.ShallowDepth())
 				require.EqualValues(t, 4, blz.ShallowWidth())
 				require.EqualValues(t, 50, blz.OpenedCacheSize())
+				require.EqualValues(t, 10, blz.LeafWidth())
 
 				require.Equal(t, "tmp/1/blob", ss[1].Path())
 				require.EqualValues(t, 0644, ss[1].Perm())

cmd/frostfs-node/config/engine/shard/blobstor/blobovnicza/config.go

@@ -102,3 +102,13 @@ func (x *Config) OpenedCacheSize() int {
 func (x *Config) BoltDB() *boltdbconfig.Config {
 	return (*boltdbconfig.Config)(x)
 }
+
+// LeafWidth returns the value of "leaf_width" config parameter.
+//
+// Returns 0 if the value is not a positive number.
+func (x *Config) LeafWidth() uint64 {
+	return config.UintSafe(
+		(*config.Config)(x),
+		"leaf_width",
+	)
+}

cmd/frostfs-node/config/object/config.go

@@ -51,3 +51,8 @@ func (g PutConfig) PoolSizeLocal() int {
 
 	return PutPoolSizeDefault
 }
+
+// SkipSessionTokenIssuerVerification returns the value of "skip_session_token_issuer_verification" config parameter or `false“ if is not defined.
+func (g PutConfig) SkipSessionTokenIssuerVerification() bool {
+	return config.BoolSafe(g.cfg, "skip_session_token_issuer_verification")
+}

cmd/frostfs-node/config/object/config_test.go

@@ -16,6 +16,7 @@ func TestObjectSection(t *testing.T) {
 		require.Equal(t, objectconfig.PutPoolSizeDefault, objectconfig.Put(empty).PoolSizeRemote())
 		require.Equal(t, objectconfig.PutPoolSizeDefault, objectconfig.Put(empty).PoolSizeLocal())
 		require.EqualValues(t, objectconfig.DefaultTombstoneLifetime, objectconfig.TombstoneLifetime(empty))
+		require.False(t, objectconfig.Put(empty).SkipSessionTokenIssuerVerification())
 	})
 
 	const path = "../../../../config/example/node"
@@ -24,6 +25,7 @@ func TestObjectSection(t *testing.T) {
 		require.Equal(t, 100, objectconfig.Put(c).PoolSizeRemote())
 		require.Equal(t, 200, objectconfig.Put(c).PoolSizeLocal())
 		require.EqualValues(t, 10, objectconfig.TombstoneLifetime(c))
+		require.True(t, objectconfig.Put(c).SkipSessionTokenIssuerVerification())
 	}
 
 	configtest.ForEachFileType(path, fileConfigTest)

cmd/frostfs-node/container.go

@@ -113,7 +113,7 @@ func configureEACLAndContainerSources(c *cfg, client *cntClient.Client, cnrSrc c
 		c.cfgObject.eaclSource = eACLFetcher
 		cnrRdr.eacl = eACLFetcher
 		c.cfgObject.cnrSource = cnrSrc
-		cnrRdr.get = cnrSrc
+		cnrRdr.src = cnrSrc
 		cnrRdr.lister = client
 	} else {
 		// use RPC node as source of Container contract items (with caching)
@@ -131,7 +131,7 @@ func configureEACLAndContainerSources(c *cfg, client *cntClient.Client, cnrSrc c
 			cnr, err := cnrSrc.Get(ev.ID)
 			if err == nil {
 				cachedContainerLister.update(cnr.Value.Owner(), ev.ID, true)
-				cachedContainerStorage.set(ev.ID, cnr, nil)
+				cachedContainerStorage.containerCache.set(ev.ID, cnr, nil)
 			} else {
 				// unlike removal, we expect successful receive of the container
 				// after successful creation, so logging can be useful
@@ -159,7 +159,6 @@ func configureEACLAndContainerSources(c *cfg, client *cntClient.Client, cnrSrc c
 			}
 
 			cachedContainerStorage.handleRemoval(ev.ID)
-
 			c.log.Debug(logs.FrostFSNodeContainerRemovalEventsReceipt,
 				zap.Stringer("id", ev.ID),
 			)
@@ -170,7 +169,7 @@ func configureEACLAndContainerSources(c *cfg, client *cntClient.Client, cnrSrc c
 
 		cnrRdr.lister = cachedContainerLister
 		cnrRdr.eacl = c.cfgObject.eaclSource
-		cnrRdr.get = c.cfgObject.cnrSource
+		cnrRdr.src = c.cfgObject.cnrSource
 
 		cnrWrt.cacheEnabled = true
 		cnrWrt.eacls = cachedEACLStorage
@@ -641,7 +640,7 @@ func (c *usedSpaceService) processLoadValue(_ context.Context, a containerSDK.Si
 type morphContainerReader struct {
 	eacl containerCore.EACLSource
 
-	get containerCore.Source
+	src containerCore.Source
 
 	lister interface {
 		List(*user.ID) ([]cid.ID, error)
@@ -649,7 +648,11 @@ type morphContainerReader struct {
 }
 
 func (x *morphContainerReader) Get(id cid.ID) (*containerCore.Container, error) {
-	return x.get.Get(id)
+	return x.src.Get(id)
+}
+
+func (x *morphContainerReader) DeletionInfo(id cid.ID) (*containerCore.DelInfo, error) {
+	return x.src.DeletionInfo(id)
 }
 
 func (x *morphContainerReader) GetEACL(id cid.ID) (*containerCore.EACL, error) {

cmd/frostfs-node/object.go

@@ -160,8 +160,9 @@ func initObjectService(c *cfg) {
 	addPolicer(c, keyStorage, c.bgClientCache)
 
 	traverseGen := util.NewTraverserGenerator(c.netMapSource, c.cfgObject.cnrSource, c)
+	irFetcher := newCachedIRFetcher(createInnerRingFetcher(c))
 
-	sPut := createPutSvc(c, keyStorage)
+	sPut := createPutSvc(c, keyStorage, &irFetcher)
 
 	sPutV2 := createPutSvcV2(sPut, keyStorage)
 
@@ -184,7 +185,7 @@ func initObjectService(c *cfg) {
 
 	splitSvc := createSplitService(c, sPutV2, sGetV2, sSearchV2, sDeleteV2)
 
-	aclSvc := createACLServiceV2(c, splitSvc)
+	aclSvc := createACLServiceV2(c, splitSvc, &irFetcher)
 
 	var commonSvc objectService.Common
 	commonSvc.Init(&c.internals, aclSvc)
@@ -295,7 +296,7 @@ func createReplicator(c *cfg, keyStorage *util.KeyStorage, cache *cache.ClientCa
 	)
 }
 
-func createPutSvc(c *cfg, keyStorage *util.KeyStorage) *putsvc.Service {
+func createPutSvc(c *cfg, keyStorage *util.KeyStorage, irFetcher *cachedIRFetcher) *putsvc.Service {
 	ls := c.cfgObject.cfgLocalStorage.localStorage
 
 	var os putsvc.ObjectStorage = engineWithoutNotifications{
@@ -320,8 +321,10 @@ func createPutSvc(c *cfg, keyStorage *util.KeyStorage) *putsvc.Service {
 		c.netMapSource,
 		c,
 		c.cfgNetmap.state,
+		irFetcher,
 		putsvc.WithWorkerPools(c.cfgObject.pool.putRemote, c.cfgObject.pool.putLocal),
 		putsvc.WithLogger(c.log),
+		putsvc.WithVerifySessionTokenIssuer(!c.cfgObject.skipSessionTokenIssuerVerification),
 	)
 }
 
@@ -405,14 +408,13 @@ func createSplitService(c *cfg, sPutV2 *putsvcV2.Service, sGetV2 *getsvcV2.Servi
 	)
 }
 
-func createACLServiceV2(c *cfg, splitSvc *objectService.TransportSplitter) v2.Service {
+func createACLServiceV2(c *cfg, splitSvc *objectService.TransportSplitter, irFetcher *cachedIRFetcher) v2.Service {
 	ls := c.cfgObject.cfgLocalStorage.localStorage
-	irFetcher := createInnerRingFetcher(c)
 
 	return v2.New(
 		splitSvc,
 		c.netMapSource,
-		newCachedIRFetcher(irFetcher),
+		irFetcher,
 		acl.NewChecker(
 			c.cfgNetmap.state,
 			c.cfgObject.eaclSource,

cmd/frostfs-node/tree.go

@@ -31,6 +31,10 @@ func (c cnrSource) Get(id cid.ID) (*container.Container, error) {
 	return c.src.Get(id)
 }
 
+func (c cnrSource) DeletionInfo(cid cid.ID) (*container.DelInfo, error) {
+	return c.src.DeletionInfo(cid)
+}
+
 func (c cnrSource) List() ([]cid.ID, error) {
 	return c.cli.ContainersOf(nil)
 }

config/example/node.env

@@ -86,6 +86,7 @@ FROSTFS_REPLICATOR_POOL_SIZE=10
 # Object service section
 FROSTFS_OBJECT_PUT_POOL_SIZE_REMOTE=100
 FROSTFS_OBJECT_PUT_POOL_SIZE_LOCAL=200
+FROSTFS_OBJECT_PUT_SKIP_SESSION_TOKEN_ISSUER_VERIFICATION=true
 FROSTFS_OBJECT_DELETE_TOMBSTONE_LIFETIME=10
 
 # Storage engine section
@@ -121,6 +122,7 @@ FROSTFS_STORAGE_SHARD_0_BLOBSTOR_0_SIZE=4194304
 FROSTFS_STORAGE_SHARD_0_BLOBSTOR_0_DEPTH=1
 FROSTFS_STORAGE_SHARD_0_BLOBSTOR_0_WIDTH=4
 FROSTFS_STORAGE_SHARD_0_BLOBSTOR_0_OPENED_CACHE_CAPACITY=50
+FROSTFS_STORAGE_SHARD_0_BLOBSTOR_0_LEAF_WIDTH=10
 ### FSTree config
 FROSTFS_STORAGE_SHARD_0_BLOBSTOR_1_TYPE=fstree
 FROSTFS_STORAGE_SHARD_0_BLOBSTOR_1_PATH=tmp/0/blob
@@ -167,6 +169,7 @@ FROSTFS_STORAGE_SHARD_1_BLOBSTOR_0_SIZE=4194304
 FROSTFS_STORAGE_SHARD_1_BLOBSTOR_0_DEPTH=1
 FROSTFS_STORAGE_SHARD_1_BLOBSTOR_0_WIDTH=4
 FROSTFS_STORAGE_SHARD_1_BLOBSTOR_0_OPENED_CACHE_CAPACITY=50
+FROSTFS_STORAGE_SHARD_1_BLOBSTOR_0_LEAF_WIDTH=10
 ### FSTree config
 FROSTFS_STORAGE_SHARD_1_BLOBSTOR_1_TYPE=fstree
 FROSTFS_STORAGE_SHARD_1_BLOBSTOR_1_PATH=tmp/1/blob

config/example/node.json

@@ -130,7 +130,8 @@
     },
     "put": {
       "pool_size_remote": 100,
-      "pool_size_local": 200
+      "pool_size_local": 200,
+      "skip_session_token_issuer_verification": true
     }
   },
   "storage": {
@@ -168,7 +169,8 @@
             "size": 4194304,
             "depth": 1,
             "width": 4,
-            "opened_cache_capacity": 50
+            "opened_cache_capacity": 50,
+            "leaf_width": 10
           },
           {
             "type": "fstree",
@@ -218,7 +220,8 @@
             "size": 4194304,
             "depth": 1,
             "width": 4,
-            "opened_cache_capacity": 50
+            "opened_cache_capacity": 50,
+            "leaf_width": 10
           },
           {
             "type": "fstree",

config/example/node.yaml

@@ -110,6 +110,7 @@ object:
   put:
     pool_size_remote: 100  # number of async workers for remote PUT operations
     pool_size_local: 200  # number of async workers for local PUT operations
+    skip_session_token_issuer_verification: true # session token issuer verification will be skipped if true
 
 storage:
   # note: shard configuration can be omitted for relay node (see `node.relay`)
@@ -145,6 +146,7 @@ storage:
           depth: 1  # max depth of object tree storage in key-value DB
           width: 4   # max width of object tree storage in key-value DB
           opened_cache_capacity: 50  # maximum number of opened database files
+          leaf_width: 10 # max count of key-value DB on leafs of object tree storage
         - perm: 0644  # permissions for blobstor files(directories: +x for current user and group)
           depth: 5  # max depth of object tree storage in FS
 

debian/control

@@ -1,7 +1,7 @@
 Source: frostfs-node
 Section: misc
 Priority: optional
-Maintainer: NeoSPCC <tech@nspcc.ru>
+Maintainer: TrueCloudLab <tech@frostfs.info>
 Build-Depends: debhelper-compat (= 13), dh-sequence-bash-completion, devscripts
 Standards-Version: 4.5.1
 Homepage: https://fs.neo.org/

go.mod

@@ -6,11 +6,12 @@ require (
 	git.frostfs.info/TrueCloudLab/frostfs-api-go/v2 v2.15.1-0.20230802075510-964c3edb3f44
 	git.frostfs.info/TrueCloudLab/frostfs-contract v0.0.0-20230627134746-36f3d39c406a
 	git.frostfs.info/TrueCloudLab/frostfs-observability v0.0.0-20230531082742-c97d21411eb6
-	git.frostfs.info/TrueCloudLab/frostfs-sdk-go v0.0.0-20230809065235-d48788c7a946
+	git.frostfs.info/TrueCloudLab/frostfs-sdk-go v0.0.0-20230828082657-84e7e69f98ac
 	git.frostfs.info/TrueCloudLab/hrw v1.2.1
 	git.frostfs.info/TrueCloudLab/tzhash v1.8.0
 	github.com/cheggaaa/pb v1.0.29
 	github.com/chzyer/readline v1.5.1
+	github.com/dgraph-io/ristretto v0.1.1
 	github.com/flynn-archive/go-shlex v0.0.0-20150515145356-3f9db97f8568
 	github.com/google/uuid v1.3.0
 	github.com/hashicorp/golang-lru/v2 v2.0.4
@@ -42,7 +43,6 @@ require (
 )
 
 require (
-	github.com/dgraph-io/ristretto v0.1.1 // indirect
 	github.com/dustin/go-humanize v1.0.0 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
 	github.com/golang/glog v1.1.0 // indirect

internal/logs/logs.go

@@ -17,467 +17,462 @@ const (
 )
 
 const (
-	InnerringNonalphabetModeDoNotStopContainerEstimations                   = "non-alphabet mode, do not stop container estimations"                      // Debug in ../node/pkg/innerring/blocktimer.go
+	InnerringNonalphabetModeDoNotStopContainerEstimations                   = "non-alphabet mode, do not stop container estimations"
-	InnerringCantStopEpochEstimation                                        = "can't stop epoch estimation"                                               // Warn in ../node/pkg/innerring/blocktimer.go
+	InnerringCantStopEpochEstimation                                        = "can't stop epoch estimation"
-	InnerringCantMakeNotaryDepositInMainChain                               = "can't make notary deposit in main chain"                                   // Error in ../node/pkg/innerring/notary.go
+	InnerringCantMakeNotaryDepositInMainChain                               = "can't make notary deposit in main chain"
-	InnerringCantMakeNotaryDepositInSideChain                               = "can't make notary deposit in side chain"                                   // Error in ../node/pkg/innerring/notary.go
+	InnerringCantMakeNotaryDepositInSideChain                               = "can't make notary deposit in side chain"
-	InnerringNotaryDepositHasAlreadyBeenMade                                = "notary deposit has already been made"                                      // Info in ../node/pkg/innerring/notary.go
+	InnerringNotaryDepositHasAlreadyBeenMade                                = "notary deposit has already been made"
-	InnerringCantGetInnerRingIndex                                          = "can't get inner ring index"                                                // Error in ../node/pkg/innerring/state.go
+	InnerringCantGetInnerRingIndex                                          = "can't get inner ring index"
-	InnerringCantGetInnerRingSize                                           = "can't get inner ring size"                                                 // Error in ../node/pkg/innerring/state.go
+	InnerringCantGetInnerRingSize                                           = "can't get inner ring size"
-	InnerringCantGetAlphabetIndex                                           = "can't get alphabet index"                                                  // Error in ../node/pkg/innerring/state.go
+	InnerringCantGetAlphabetIndex                                           = "can't get alphabet index"
-	InnerringIgnoreValidatorVoteNodeNotInAlphabetRange                      = "ignore validator vote: node not in alphabet range"                         // Info in ../node/pkg/innerring/state.go
+	InnerringIgnoreValidatorVoteNodeNotInAlphabetRange                      = "ignore validator vote: node not in alphabet range"
-	InnerringIgnoreValidatorVoteEmptyValidatorsList                         = "ignore validator vote: empty validators list"                              // Info in ../node/pkg/innerring/state.go
+	InnerringIgnoreValidatorVoteEmptyValidatorsList                         = "ignore validator vote: empty validators list"
-	InnerringCantInvokeVoteMethodInAlphabetContract                         = "can't invoke vote method in alphabet contract"                             // Warn in ../node/pkg/innerring/state.go
+	InnerringCantInvokeVoteMethodInAlphabetContract                         = "can't invoke vote method in alphabet contract"
-	InnerringCantGetLastProcessedMainChainBlockNumber                       = "can't get last processed main chain block number"                          // Warn in ../node/pkg/innerring/initialization.go
+	InnerringCantGetLastProcessedMainChainBlockNumber                       = "can't get last processed main chain block number"
-	InnerringNotarySupport                                                  = "notary support"                                                            // Info in ../node/pkg/innerring/initialization.go
+	InnerringNotarySupport                                                  = "notary support"
-	InnerringAlphabetKeysSyncIsDisabled                                     = "alphabet keys sync is disabled"                                            // Debug in ../node/pkg/innerring/initialization.go
+	InnerringAlphabetKeysSyncIsDisabled                                     = "alphabet keys sync is disabled"
-	InnerringNoControlServerEndpointSpecified                               = "no Control server endpoint specified, service is disabled"                 // Info in ../node/pkg/innerring/initialization.go
+	InnerringNoControlServerEndpointSpecified                               = "no Control server endpoint specified, service is disabled"
-	InnerringCantGetLastProcessedSideChainBlockNumber                       = "can't get last processed side chain block number"                          // Warn in ../node/pkg/innerring/initialization.go
+	InnerringCantGetLastProcessedSideChainBlockNumber                       = "can't get last processed side chain block number"
-	InnerringFailedToSetGroupSignerScope                                    = "failed to set group signer scope, continue with Global"                    // Info in ../node/pkg/innerring/initialization.go
+	InnerringFailedToSetGroupSignerScope                                    = "failed to set group signer scope, continue with Global"
-	InnerringCantVoteForPreparedValidators                                  = "can't vote for prepared validators"                                        // Warn in ../node/pkg/innerring/innerring.go
+	InnerringCantVoteForPreparedValidators                                  = "can't vote for prepared validators"
-	InnerringNewBlock                                                       = "new block"                                                                 // Debug in ../node/pkg/innerring/innerring.go
+	InnerringNewBlock                                                       = "new block"
-	InnerringCantUpdatePersistentState                                      = "can't update persistent state"                                             // Warn in ../node/pkg/innerring/innerring.go
+	InnerringCantUpdatePersistentState                                      = "can't update persistent state"
-	InnerringCloserError                                                    = "closer error"                                                              // Warn in ../node/pkg/innerring/innerring.go
+	InnerringCloserError                                                    = "closer error"
-	InnerringReadConfigFromBlockchain                                       = "read config from blockchain"                                               // Debug in ../node/pkg/innerring/innerring.go
+	InnerringReadConfigFromBlockchain                                       = "read config from blockchain"
-	NotificatorNotificatorStartProcessingObjectNotifications                = "notificator: start processing object notifications"                        // Debug in ../node/pkg/services/notificator/service.go
+	NotificatorNotificatorStartProcessingObjectNotifications                = "notificator: start processing object notifications"
-	NotificatorNotificatorProcessingObjectNotification                      = "notificator: processing object notification"                               // Debug in ../node/pkg/services/notificator/service.go
+	NotificatorNotificatorProcessingObjectNotification                      = "notificator: processing object notification"
-	PolicerCouldNotGetContainer                                             = "could not get container"                                                   // Error in ../node/pkg/services/policer/check.go
+	PolicerCouldNotGetContainer                                             = "could not get container"
-	PolicerCouldNotInhumeObjectWithMissingContainer                         = "could not inhume object with missing container"                            // Error in ../node/pkg/services/policer/check.go
+	PolicerCouldNotConfirmContainerRemoval                                  = "could not confirm container removal"
-	PolicerCouldNotBuildPlacementVectorForObject                            = "could not build placement vector for object"                               // Error in ../node/pkg/services/policer/check.go
+	PolicerCouldNotInhumeObjectWithMissingContainer                         = "could not inhume object with missing container"
-	PolicerRedundantLocalObjectCopyDetected                                 = "redundant local object copy detected"                                      // Info in ../node/pkg/services/policer/check.go
+	PolicerCouldNotBuildPlacementVectorForObject                            = "could not build placement vector for object"
-	PolicerReceiveObjectHeaderToCheckPolicyCompliance                       = "receive object header to check policy compliance"                          // Error in ../node/pkg/services/policer/check.go
+	PolicerRedundantLocalObjectCopyDetected                                 = "redundant local object copy detected"
-	PolicerConsiderNodeUnderMaintenanceAsOK                                 = "consider node under maintenance as OK"                                     // Debug in ../node/pkg/services/policer/check.go
+	PolicerReceiveObjectHeaderToCheckPolicyCompliance                       = "receive object header to check policy compliance"
-	PolicerShortageOfObjectCopiesDetected                                   = "shortage of object copies detected"                                        // Debug in ../node/pkg/services/policer/check.go
+	PolicerConsiderNodeUnderMaintenanceAsOK                                 = "consider node under maintenance as OK"
-	PolicerSomeOfTheCopiesAreStoredOnNodesUnderMaintenance                  = "some of the copies are stored on nodes under maintenance, save local copy" // Debug in ../node/pkg/services/policer/check.go
+	PolicerShortageOfObjectCopiesDetected                                   = "shortage of object copies detected"
-	PolicerRoutineStopped                                                   = "routine stopped"                                                           // Info in ../node/pkg/services/policer/process.go
+	PolicerSomeOfTheCopiesAreStoredOnNodesUnderMaintenance                  = "some of the copies are stored on nodes under maintenance, save local copy"
-	PolicerFailureAtObjectSelectForReplication                              = "failure at object select for replication"                                  // Warn in ../node/pkg/services/policer/process.go
+	PolicerRoutineStopped                                                   = "routine stopped"
-	PolicerPoolSubmission                                                   = "pool submission"                                                           // Warn in ../node/pkg/services/policer/process.go
+	PolicerFailureAtObjectSelectForReplication                              = "failure at object select for replication"
-	ReplicatorFinishWork                                                    = "finish work"                                                               // Debug in ../node/pkg/services/replicator/process.go
+	PolicerPoolSubmission                                                   = "pool submission"
-	ReplicatorCouldNotGetObjectFromLocalStorage                             = "could not get object from local storage"                                   // Error in ../node/pkg/services/replicator/process.go
+	ReplicatorFinishWork                                                    = "finish work"
-	ReplicatorCouldNotReplicateObject                                       = "could not replicate object"                                                // Error in ../node/pkg/services/replicator/process.go
+	ReplicatorCouldNotGetObjectFromLocalStorage                             = "could not get object from local storage"
-	ReplicatorObjectSuccessfullyReplicated                                  = "object successfully replicated"                                            // Debug in ../node/pkg/services/replicator/process.go
+	ReplicatorCouldNotReplicateObject                                       = "could not replicate object"
-	TreeRedirectingTreeServiceQuery                                         = "redirecting tree service query"                                            // Debug in ../node/pkg/services/tree/redirect.go
+	ReplicatorObjectSuccessfullyReplicated                                  = "object successfully replicated"
-	TreeBearerPresentedButNotAllowedByACL                                   = "bearer presented but not allowed by ACL"                                   // Debug in ../node/pkg/services/tree/signature.go
+	TreeRedirectingTreeServiceQuery                                         = "redirecting tree service query"
-	TreeCouldNotGetLastSynchronizedHeightForATree                           = "could not get last synchronized height for a tree"                         // Warn in ../node/pkg/services/tree/sync.go
+	TreeBearerPresentedButNotAllowedByACL                                   = "bearer presented but not allowed by ACL"
-	TreeCouldNotUpdateLastSynchronizedHeightForATree                        = "could not update last synchronized height for a tree"                      // Warn in ../node/pkg/services/tree/sync.go
+	TreeCouldNotGetLastSynchronizedHeightForATree                           = "could not get last synchronized height for a tree"
-	TreeSynchronizeTree                                                     = "synchronize tree"                                                          // Debug in ../node/pkg/services/tree/sync.go
+	TreeCouldNotUpdateLastSynchronizedHeightForATree                        = "could not update last synchronized height for a tree"
-	TreeFailedToRunTreeSynchronizationOverAllNodes                          = "failed to run tree synchronization over all nodes"                         // Warn in ../node/pkg/services/tree/sync.go
+	TreeSynchronizeTree                                                     = "synchronize tree"
-	TreeSyncingTrees                                                        = "syncing trees..."                                                          // Debug in ../node/pkg/services/tree/sync.go
+	TreeFailedToRunTreeSynchronizationOverAllNodes                          = "failed to run tree synchronization over all nodes"
-	TreeCouldNotFetchContainers                                             = "could not fetch containers"                                                // Error in ../node/pkg/services/tree/sync.go
+	TreeSyncingTrees                                                        = "syncing trees..."
-	TreeTreesHaveBeenSynchronized                                           = "trees have been synchronized"                                              // Debug in ../node/pkg/services/tree/sync.go
+	TreeCouldNotFetchContainers                                             = "could not fetch containers"
-	TreeSyncingContainerTrees                                               = "syncing container trees..."                                                // Debug in ../node/pkg/services/tree/sync.go
+	TreeTreesHaveBeenSynchronized                                           = "trees have been synchronized"
-	TreeCouldNotSyncTrees                                                   = "could not sync trees"                                                      // Error in ../node/pkg/services/tree/sync.go
+	TreeSyncingContainerTrees                                               = "syncing container trees..."
-	TreeContainerTreesHaveBeenSynced                                        = "container trees have been synced"                                          // Debug in ../node/pkg/services/tree/sync.go
+	TreeCouldNotSyncTrees                                                   = "could not sync trees"
-	TreeCouldNotQueryTreesForSynchronization                                = "could not query trees for synchronization"                                 // Error in ../node/pkg/services/tree/sync.go
+	TreeContainerTreesHaveBeenSynced                                        = "container trees have been synced"
-	TreeRemovingRedundantTrees                                              = "removing redundant trees..."                                               // Debug in ../node/pkg/services/tree/sync.go
+	TreeCouldNotQueryTreesForSynchronization                                = "could not query trees for synchronization"
-	TreeCouldNotRemoveRedundantTree                                         = "could not remove redundant tree"                                           // Error in ../node/pkg/services/tree/sync.go
+	TreeRemovingRedundantTrees                                              = "removing redundant trees..."
-	TreeCouldNotCalculateContainerNodes                                     = "could not calculate container nodes"                                       // Error in ../node/pkg/services/tree/sync.go
+	TreeCouldNotCheckIfContainerExisted                                     = "could not check if the container ever existed"
-	TreeFailedToApplyReplicatedOperation                                    = "failed to apply replicated operation"                                      // Error in ../node/pkg/services/tree/replicator.go
+	TreeCouldNotRemoveRedundantTree                                         = "could not remove redundant tree"
-	TreeDoNotSendUpdateToTheNode                                            = "do not send update to the node"                                            // Debug in ../node/pkg/services/tree/replicator.go
+	TreeCouldNotCalculateContainerNodes                                     = "could not calculate container nodes"
-	TreeFailedToSentUpdateToTheNode                                         = "failed to sent update to the node"                                         // Warn in ../node/pkg/services/tree/replicator.go
+	TreeFailedToApplyReplicatedOperation                                    = "failed to apply replicated operation"
-	TreeErrorDuringReplication                                              = "error during replication"                                                  // Error in ../node/pkg/services/tree/replicator.go
+	TreeDoNotSendUpdateToTheNode                                            = "do not send update to the node"
-	PersistentCouldNotGetSessionFromPersistentStorage                       = "could not get session from persistent storage"                             // Error in ../node/pkg/services/session/storage/persistent/storage.go
+	TreeFailedToSentUpdateToTheNode                                         = "failed to sent update to the node"
-	PersistentCouldNotDeleteSToken                                          = "could not delete token"                                                    // Error in ../node/pkg/services/session/storage/persistent/storage.go
+	TreeErrorDuringReplication                                              = "error during replication"
-	PersistentCouldNotCleanUpExpiredTokens                                  = "could not clean up expired tokens"                                         // Error in ../node/pkg/services/session/storage/persistent/storage.go
+	PersistentCouldNotGetSessionFromPersistentStorage                       = "could not get session from persistent storage"
-	ControllerReportIsAlreadyStarted                                        = "report is already started"                                                 // Debug in ../node/pkg/services/container/announcement/load/controller/calls.go
+	PersistentCouldNotDeleteSToken                                          = "could not delete token"
-	TombstoneCouldNotGetTheTombstoneTheSource                               = "tombstone getter: could not get the tombstone the source"                  // Warn in ../node/pkg/services/object_manager/tombstone/checker.go
+	PersistentCouldNotCleanUpExpiredTokens                                  = "could not clean up expired tokens"
-	DeleteRequestIsNotRolledOverToTheContainer                              = "request is not rolled over to the container"                               // Debug in ../node/pkg/services/object/delete/container.go
+	ControllerReportIsAlreadyStarted                                        = "report is already started"
-	DeleteCouldNotComposeSplitInfo                                          = "could not compose split info"                                              // Debug in ../node/pkg/services/object/delete/exec.go
+	TombstoneCouldNotGetTheTombstoneTheSource                               = "tombstone getter: could not get the tombstone the source"
-	DeleteNoSplitInfoObjectIsPHY                                            = "no split info, object is PHY"                                              // Debug in ../node/pkg/services/object/delete/exec.go
+	DeleteNoSplitInfoObjectIsPHY                                            = "no split info, object is PHY"
-	DeleteAssemblingChain                                                   = "assembling chain..."                                                       // Debug in ../node/pkg/services/object/delete/exec.go
+	DeleteAssemblingChain                                                   = "assembling chain..."
-	DeleteCouldNotGetPreviousSplitElement                                   = "could not get previous split element"                                      // Debug in ../node/pkg/services/object/delete/exec.go
+	DeleteCollectingChildren                                                = "collecting children..."
-	DeleteCollectingChildren                                                = "collecting children..."                                                    // Debug in ../node/pkg/services/object/delete/exec.go
+	DeleteSupplementBySplitID                                               = "supplement by split ID"
-	DeleteCouldNotCollectObjectChildren                                     = "could not collect object children"                                         // Debug in ../node/pkg/services/object/delete/exec.go
+	DeleteFormingTombstoneStructure                                         = "forming tombstone structure..."
-	DeleteSupplementBySplitID                                               = "supplement by split ID"                                                    // Debug in ../node/pkg/services/object/delete/exec.go
+	DeleteTombstoneStructureSuccessfullyFormedSaving                        = "tombstone structure successfully formed, saving..."
-	DeleteCouldNotSearchForSplitChainMembers                                = "could not search for split chain members"                                  // Debug in ../node/pkg/services/object/delete/exec.go
+	DeleteFormingSplitInfo                                                  = "forming split info..."
-	DeleteCouldNotMarshalTombstoneStructure                                 = "could not marshal tombstone structure"                                     // Debug in ../node/pkg/services/object/delete/exec.go
+	DeleteSplitInfoSuccessfullyFormedCollectingMembers                      = "split info successfully formed, collecting members..."
-	DeleteCouldNotSaveTheTombstone                                          = "could not save the tombstone"                                              // Debug in ../node/pkg/services/object/delete/exec.go
+	DeleteMembersSuccessfullyCollected                                      = "members successfully collected"
-	DeleteFormingTombstoneStructure                                         = "forming tombstone structure..."                                            // Debug in ../node/pkg/services/object/delete/local.go
+	GetRemoteCallFailed                                                     = "remote call failed"
-	DeleteTombstoneStructureSuccessfullyFormedSaving                        = "tombstone structure successfully formed, saving..."                        // Debug in ../node/pkg/services/object/delete/local.go
+	GetCanNotAssembleTheObject                                              = "can not assemble the object"
-	DeleteCouldNotReadTombstoneLifetimeConfig                               = "could not read tombstone lifetime config"                                  // Debug in ../node/pkg/services/object/delete/local.go
+	GetTryingToAssembleTheObject                                            = "trying to assemble the object..."
-	DeleteFormingSplitInfo                                                  = "forming split info..."                                                     // Debug in ../node/pkg/services/object/delete/local.go
+	GetAssemblingSplittedObject                                             = "assembling splitted object..."
-	DeleteSplitInfoSuccessfullyFormedCollectingMembers                      = "split info successfully formed, collecting members..."                     // Debug in ../node/pkg/services/object/delete/local.go
+	GetAssemblingSplittedObjectCompleted                                    = "assembling splitted object completed"
-	DeleteMembersSuccessfullyCollected                                      = "members successfully collected"                                            // Debug in ../node/pkg/services/object/delete/local.go
+	GetFailedToAssembleSplittedObject                                       = "failed to assemble splitted object"
-	GetRemoteCallFailed                                                     = "remote call failed"                                                        // Debug in ../node/pkg/services/object/get/remote.go
+	GetCouldNotGenerateContainerTraverser                                   = "could not generate container traverser"
-	GetCanNotAssembleTheObject                                              = "can not assemble the object"                                               // Debug in ../node/pkg/services/object/get/assemble.go
+	GetCouldNotConstructRemoteNodeClient                                    = "could not construct remote node client"
-	GetTryingToAssembleTheObject                                            = "trying to assemble the object..."                                          // Debug in ../node/pkg/services/object/get/assemble.go
+	GetCouldNotWriteHeader                                                  = "could not write header"
-	GetAssemblingSplittedObject                                             = "assembling splitted object..."                                             // Debug in ../node/pkg/services/object/get/assemble.go
+	GetCouldNotWritePayloadChunk                                            = "could not write payload chunk"
-	GetAssemblingSplittedObjectCompleted                                    = "assembling splitted object completed"                                      // Debug in ../node/pkg/services/object/get/assemble.go
+	GetLocalGetFailed                                                       = "local get failed"
-	GetFailedToAssembleSplittedObject                                       = "failed to assemble splitted object"                                        // Warn in ../node/pkg/services/object/get/assemble.go
+	GetReturnResultDirectly                                                 = "return result directly"
-	GetCouldNotGenerateContainerTraverser                                   = "could not generate container traverser"                                    // Debug in ../node/pkg/services/object/get/exec.go
+	GetCompletingTheOperation                                               = "completing the operation"
-	GetCouldNotConstructRemoteNodeClient                                    = "could not construct remote node client"                                    // Debug in ../node/pkg/services/object/get/exec.go
+	GetRequestedObjectWasMarkedAsRemoved                                    = "requested object was marked as removed"
-	GetCouldNotWriteHeader                                                  = "could not write header"                                                    // Debug in ../node/pkg/services/object/get/exec.go
+	GetRequestedObjectIsVirtual                                             = "requested object is virtual"
-	GetCouldNotWritePayloadChunk                                            = "could not write payload chunk"                                             // Debug in ../node/pkg/services/object/get/exec.go
+	GetRequestedRangeIsOutOfObjectBounds                                    = "requested range is out of object bounds"
-	GetLocalGetFailed                                                       = "local get failed"                                                          // Debug in ../node/pkg/services/object/get/local.go
+	PutAdditionalContainerBroadcastFailure                                  = "additional container broadcast failure"
-	GetReturnResultDirectly                                                 = "return result directly"                                                    // Debug in ../node/pkg/services/object/get/container.go
+	SearchReturnResultDirectly                                              = "return result directly"
-	GetCompletingTheOperation                                               = "completing the operation"                                                  // Debug in ../node/pkg/services/object/get/container.go
+	SearchCouldNotConstructRemoteNodeClient                                 = "could not construct remote node client"
-	GetRequestedObjectWasMarkedAsRemoved                                    = "requested object was marked as removed"                                    // Debug in ../node/pkg/services/object/get/get.go
+	SearchRemoteOperationFailed                                             = "remote operation failed"
-	GetRequestedObjectIsVirtual                                             = "requested object is virtual"                                               // Debug in ../node/pkg/services/object/get/get.go
+	SearchCouldNotGenerateContainerTraverser                                = "could not generate container traverser"
-	GetRequestedRangeIsOutOfObjectBounds                                    = "requested range is out of object bounds"                                   // Debug in ../node/pkg/services/object/get/get.go
+	SearchCouldNotWriteObjectIdentifiers                                    = "could not write object identifiers"
-	PutAdditionalContainerBroadcastFailure                                  = "additional container broadcast failure"                                    // Error in ../node/pkg/services/object/put/distributed.go
+	SearchLocalOperationFailed                                              = "local operation failed"
-	SearchReturnResultDirectly                                              = "return result directly"                                                    // Debug in ../node/pkg/services/object/search/container.go
+	UtilObjectServiceError                                                  = "object service error"
-	SearchCouldNotConstructRemoteNodeClient                                 = "could not construct remote node client"                                    // Debug in ../node/pkg/services/object/search/container.go
+	UtilCouldNotPushTaskToWorkerPool                                        = "could not push task to worker pool"
-	SearchRemoteOperationFailed                                             = "remote operation failed"                                                   // Debug in ../node/pkg/services/object/search/container.go
+	V2CantCheckIfRequestFromInnerRing                                       = "can't check if request from inner ring"
-	SearchCouldNotGenerateContainerTraverser                                = "could not generate container traverser"                                    // Debug in ../node/pkg/services/object/search/exec.go
+	V2CantCheckIfRequestFromContainerNode                                   = "can't check if request from container node"
-	SearchCouldNotWriteObjectIdentifiers                                    = "could not write object identifiers"                                        // Debug in ../node/pkg/services/object/search/exec.go
+	NatsNatsConnectionWasLost                                               = "nats: connection was lost"
-	SearchLocalOperationFailed                                              = "local operation failed"                                                    // Debug in ../node/pkg/services/object/search/local.go
+	NatsNatsReconnectedToTheServer                                          = "nats: reconnected to the server"
-	UtilObjectServiceError                                                  = "object service error"                                                      // Error in ../node/pkg/services/object/util/log.go
+	NatsNatsClosingConnectionAsTheContextIsDone                             = "nats: closing connection as the context is done"
-	UtilCouldNotPushTaskToWorkerPool                                        = "could not push task to worker pool"                                        // Error in ../node/pkg/services/object/util/log.go
+	ControllerStartingToAnnounceTheValuesOfTheMetrics                       = "starting to announce the values of the metrics"
-	V2CantCheckIfRequestFromInnerRing                                       = "can't check if request from inner ring"                                    // Debug in ../node/pkg/services/object/acl/v2/classifier.go
+	ControllerCouldNotInitializeIteratorOverLocallyCollectedMetrics         = "could not initialize iterator over locally collected metrics"
-	V2CantCheckIfRequestFromContainerNode                                   = "can't check if request from container node"                                // Debug in ../node/pkg/services/object/acl/v2/classifier.go
+	ControllerCouldNotInitializeAnnouncementAccumulator                     = "could not initialize announcement accumulator"
-	NatsNatsConnectionWasLost                                               = "nats: connection was lost"                                                 // Error in ../node/pkg/services/notificator/nats/service.go
+	ControllerIteratorOverLocallyCollectedMetricsAborted                    = "iterator over locally collected metrics aborted"
-	NatsNatsReconnectedToTheServer                                          = "nats: reconnected to the server"                                           // Warn in ../node/pkg/services/notificator/nats/service.go
+	ControllerCouldNotFinishWritingLocalAnnouncements                       = "could not finish writing local announcements"
-	NatsNatsClosingConnectionAsTheContextIsDone                             = "nats: closing connection as the context is done"                           // Info in ../node/pkg/services/notificator/nats/service.go
+	ControllerTrustAnnouncementSuccessfullyFinished                         = "trust announcement successfully finished"
-	ControllerStartingToAnnounceTheValuesOfTheMetrics                       = "starting to announce the values of the metrics"                            // Debug in ../node/pkg/services/container/announcement/load/controller/calls.go
+	ControllerAnnouncementIsAlreadyStarted                                  = "announcement is already started"
-	ControllerCouldNotInitializeIteratorOverLocallyCollectedMetrics         = "could not initialize iterator over locally collected metrics"              // Debug in ../node/pkg/services/container/announcement/load/controller/calls.go
+	ControllerAnnouncementSuccessfullyInterrupted                           = "announcement successfully interrupted"
-	ControllerCouldNotInitializeAnnouncementAccumulator                     = "could not initialize announcement accumulator"                             // Debug in ../node/pkg/services/container/announcement/load/controller/calls.go
+	ControllerAnnouncementIsNotStartedOrAlreadyInterrupted                  = "announcement is not started or already interrupted"
-	ControllerIteratorOverLocallyCollectedMetricsAborted                    = "iterator over locally collected metrics aborted"                           // Debug in ../node/pkg/services/container/announcement/load/controller/calls.go
+	ControllerCouldNotInitializeIteratorOverLocallyAccumulatedAnnouncements = "could not initialize iterator over locally accumulated announcements"
-	ControllerCouldNotFinishWritingLocalAnnouncements                       = "could not finish writing local announcements"                              // Debug in ../node/pkg/services/container/announcement/load/controller/calls.go
+	ControllerCouldNotInitializeResultTarget                                = "could not initialize result target"
-	ControllerTrustAnnouncementSuccessfullyFinished                         = "trust announcement successfully finished"                                  // Debug in ../node/pkg/services/container/announcement/load/controller/calls.go
+	ControllerIteratorOverLocalAnnouncementsAborted                         = "iterator over local announcements aborted"
-	ControllerAnnouncementIsAlreadyStarted                                  = "announcement is already started"                                           // Debug in ../node/pkg/services/container/announcement/load/controller/calls.go
+	ControllerCouldNotFinishWritingLoadEstimations                          = "could not finish writing load estimations"
-	ControllerAnnouncementSuccessfullyInterrupted                           = "announcement successfully interrupted"                                     // Debug in ../node/pkg/services/container/announcement/load/controller/calls.go
+	RouteCouldNotInitializeWriterProvider                                   = "could not initialize writer provider"
-	ControllerAnnouncementIsNotStartedOrAlreadyInterrupted                  = "announcement is not started or already interrupted"                        // Debug in ../node/pkg/services/container/announcement/load/controller/calls.go
+	RouteCouldNotInitializeWriter                                           = "could not initialize writer"
-	ControllerCouldNotInitializeIteratorOverLocallyAccumulatedAnnouncements = "could not initialize iterator over locally accumulated announcements"      // Debug in ../node/pkg/services/container/announcement/load/controller/calls.go
+	RouteCouldNotPutTheValue                                                = "could not put the value"
-	ControllerCouldNotInitializeResultTarget                                = "could not initialize result target"                                        // Debug in ../node/pkg/services/container/announcement/load/controller/calls.go
+	RouteCouldNotCloseRemoteServerWriter                                    = "could not close remote server writer"
-	ControllerIteratorOverLocalAnnouncementsAborted                         = "iterator over local announcements aborted"                                 // Debug in ../node/pkg/services/container/announcement/load/controller/calls.go
+	ClientCouldNotRestoreBlockSubscriptionAfterRPCSwitch                    = "could not restore block subscription after RPC switch"
-	ControllerCouldNotFinishWritingLoadEstimations                          = "could not finish writing load estimations"                                 // Debug in ../node/pkg/services/container/announcement/load/controller/calls.go
+	ClientCouldNotRestoreNotificationSubscriptionAfterRPCSwitch             = "could not restore notification subscription after RPC switch"
-	RouteCouldNotInitializeWriterProvider                                   = "could not initialize writer provider"                                      // Debug in ../node/pkg/services/container/announcement/load/route/calls.go
+	ClientCouldNotRestoreNotaryNotificationSubscriptionAfterRPCSwitch       = "could not restore notary notification subscription after RPC switch"
-	RouteCouldNotInitializeWriter                                           = "could not initialize writer"                                               // Debug in ../node/pkg/services/container/announcement/load/route/calls.go
+	ClientCouldNotEstablishConnectionToTheSwitchedRPCNode                   = "could not establish connection to the switched RPC node"
-	RouteCouldNotPutTheValue                                                = "could not put the value"                                                   // Debug in ../node/pkg/services/container/announcement/load/route/calls.go
+	ClientConnectionToTheNewRPCNodeHasBeenEstablished                       = "connection to the new RPC node has been established"
-	RouteCouldNotCloseRemoteServerWriter                                    = "could not close remote server writer"                                      // Debug in ../node/pkg/services/container/announcement/load/route/calls.go
+	ClientSwitchingToTheNextRPCNode                                         = "switching to the next RPC node"
-	ClientCouldNotRestoreBlockSubscriptionAfterRPCSwitch                    = "could not restore block subscription after RPC switch"                     // Error in ../node/pkg/morph/client/notifications.go
+	ClientCouldNotEstablishConnectionToAnyRPCNode                           = "could not establish connection to any RPC node"
-	ClientCouldNotRestoreNotificationSubscriptionAfterRPCSwitch             = "could not restore notification subscription after RPC switch"              // Error in ../node/pkg/morph/client/notifications.go
+	ClientCouldNotCreateClientToTheHigherPriorityNode                       = "could not create client to the higher priority node"
-	ClientCouldNotRestoreNotaryNotificationSubscriptionAfterRPCSwitch       = "could not restore notary notification subscription after RPC switch"       // Error in ../node/pkg/morph/client/notifications.go
+	ClientSwitchedToTheHigherPriorityRPC                                    = "switched to the higher priority RPC"
-	ClientCouldNotEstablishConnectionToTheSwitchedRPCNode                   = "could not establish connection to the switched RPC node"                   // Warn in ../node/pkg/morph/client/multi.go
+	ClientCouldNotRestoreSideChainSubscriptionsUsingNode                    = "could not restore side chain subscriptions using node"
-	ClientConnectionToTheNewRPCNodeHasBeenEstablished                       = "connection to the new RPC node has been established"                       // Info in ../node/pkg/morph/client/multi.go
+	ClientNotaryDepositHasAlreadyBeenMade                                   = "notary deposit has already been made"
-	ClientSwitchingToTheNextRPCNode                                         = "switching to the next RPC node"                                            // Warn in ../node/pkg/morph/client/multi.go
+	ClientNotaryDepositInvoke                                               = "notary deposit invoke"
-	ClientCouldNotEstablishConnectionToAnyRPCNode                           = "could not establish connection to any RPC node"                            // Error in ../node/pkg/morph/client/multi.go
+	ClientNotaryRequestWithPreparedMainTXInvoked                            = "notary request with prepared main TX invoked"
-	ClientCouldNotCreateClientToTheHigherPriorityNode                       = "could not create client to the higher priority node"                       // Warn in ../node/pkg/morph/client/multi.go
+	ClientNotaryRequestInvoked                                              = "notary request invoked"
-	ClientSwitchedToTheHigherPriorityRPC                                    = "switched to the higher priority RPC"                                       // Info in ../node/pkg/morph/client/multi.go
+	ClientNeoClientInvoke                                                   = "neo client invoke"
-	ClientCouldNotRestoreSideChainSubscriptionsUsingNode                    = "could not restore side chain subscriptions using node"                     // Warn in ../node/pkg/morph/client/multi.go
+	ClientNativeGasTransferInvoke                                           = "native gas transfer invoke"
-	ClientNotaryDepositHasAlreadyBeenMade                                   = "notary deposit has already been made"                                      // Info in ../node/pkg/morph/client/notary.go
+	ClientBatchGasTransferInvoke                                            = "batch gas transfer invoke"
-	ClientNotaryDepositInvoke                                               = "notary deposit invoke"                                                     // Info in ../node/pkg/morph/client/notary.go
+	ClientCantGetBlockchainHeight                                           = "can't get blockchain height"
-	ClientNotaryRequestWithPreparedMainTXInvoked                            = "notary request with prepared main TX invoked"                              // Debug in ../node/pkg/morph/client/notary.go
+	ClientCantGetBlockchainHeight243                                        = "can't get blockchain height"
-	ClientNotaryRequestInvoked                                              = "notary request invoked"                                                    // Debug in ../node/pkg/morph/client/notary.go
+	EventCouldNotSubmitHandlerToWorkerPool                                  = "could not Submit handler to worker pool"
-	ClientNeoClientInvoke                                                   = "neo client invoke"                                                         // Debug in ../node/pkg/morph/client/client.go
+	EventCouldNotStartListenToEvents                                        = "could not start listen to events"
-	ClientNativeGasTransferInvoke                                           = "native gas transfer invoke"                                                // Debug in ../node/pkg/morph/client/client.go
+	EventStopEventListenerByError                                           = "stop event listener by error"
-	ClientBatchGasTransferInvoke                                            = "batch gas transfer invoke"                                                 // Debug in ../node/pkg/morph/client/client.go
+	EventStopEventListenerByContext                                         = "stop event listener by context"
-	ClientCantGetBlockchainHeight                                           = "can't get blockchain height"                                               // Error in ../node/pkg/morph/client/client.go
+	EventStopEventListenerByNotificationChannel                             = "stop event listener by notification channel"
-	ClientCantGetBlockchainHeight243                                        = "can't get blockchain height"                                               // Error in ../node/pkg/morph/client/client.go
+	EventNilNotificationEventWasCaught                                      = "nil notification event was caught"
-	EventCouldNotSubmitHandlerToWorkerPool                                  = "could not Submit handler to worker pool"                                   // Warn in ../node/pkg/morph/event/utils.go
+	EventStopEventListenerByNotaryChannel                                   = "stop event listener by notary channel"
-	EventCouldNotStartListenToEvents                                        = "could not start listen to events"                                          // Error in ../node/pkg/morph/event/listener.go
+	EventNilNotaryEventWasCaught                                            = "nil notary event was caught"
-	EventStopEventListenerByError                                           = "stop event listener by error"                                              // Error in ../node/pkg/morph/event/listener.go
+	EventStopEventListenerByBlockChannel                                    = "stop event listener by block channel"
-	EventStopEventListenerByContext                                         = "stop event listener by context"                                            // Info in ../node/pkg/morph/event/listener.go
+	EventNilBlockWasCaught                                                  = "nil block was caught"
-	EventStopEventListenerByNotificationChannel                             = "stop event listener by notification channel"                               // Warn in ../node/pkg/morph/event/listener.go
+	EventListenerWorkerPoolDrained                                          = "listener worker pool drained"
-	EventNilNotificationEventWasCaught                                      = "nil notification event was caught"                                         // Warn in ../node/pkg/morph/event/listener.go
+	EventEventParserNotSet                                                  = "event parser not set"
-	EventStopEventListenerByNotaryChannel                                   = "stop event listener by notary channel"                                     // Warn in ../node/pkg/morph/event/listener.go
+	EventCouldNotParseNotificationEvent                                     = "could not parse notification event"
-	EventNilNotaryEventWasCaught                                            = "nil notary event was caught"                                               // Warn in ../node/pkg/morph/event/listener.go
+	EventNotificationHandlersForParsedNotificationEventWereNotRegistered    = "notification handlers for parsed notification event were not registered"
-	EventStopEventListenerByBlockChannel                                    = "stop event listener by block channel"                                      // Warn in ../node/pkg/morph/event/listener.go
+	EventSkipExpiredMainTXNotaryEvent                                       = "skip expired main TX notary event"
-	EventNilBlockWasCaught                                                  = "nil block was caught"                                                      // Warn in ../node/pkg/morph/event/listener.go
+	EventCouldNotPrepareAndValidateNotaryEvent                              = "could not prepare and validate notary event"
-	EventListenerWorkerPoolDrained                                          = "listener worker pool drained"                                              // Warn in ../node/pkg/morph/event/listener.go
+	EventNotaryParserNotSet                                                 = "notary parser not set"
-	EventEventParserNotSet                                                  = "event parser not set"                                                      // Debug in ../node/pkg/morph/event/listener.go
+	EventCouldNotParseNotaryEvent                                           = "could not parse notary event"
-	EventCouldNotParseNotificationEvent                                     = "could not parse notification event"                                        // Warn in ../node/pkg/morph/event/listener.go
+	EventNotaryHandlersForParsedNotificationEventWereNotRegistered          = "notary handlers for parsed notification event were not registered"
-	EventNotificationHandlersForParsedNotificationEventWereNotRegistered    = "notification handlers for parsed notification event were not registered"   // Info in ../node/pkg/morph/event/listener.go
+	EventIgnoreNilEventParser                                               = "ignore nil event parser"
-	EventSkipExpiredMainTXNotaryEvent                                       = "skip expired main TX notary event"                                         // Warn in ../node/pkg/morph/event/listener.go
+	EventListenerHasBeenAlreadyStartedIgnoreParser                          = "listener has been already started, ignore parser"
-	EventCouldNotPrepareAndValidateNotaryEvent                              = "could not prepare and validate notary event"                               // Warn in ../node/pkg/morph/event/listener.go
+	EventRegisteredNewEventParser                                           = "registered new event parser"
-	EventNotaryParserNotSet                                                 = "notary parser not set"                                                     // Debug in ../node/pkg/morph/event/listener.go
+	EventIgnoreNilEventHandler                                              = "ignore nil event handler"
-	EventCouldNotParseNotaryEvent                                           = "could not parse notary event"                                              // Warn in ../node/pkg/morph/event/listener.go
+	EventIgnoreHandlerOfEventWoParser                                       = "ignore handler of event w/o parser"
-	EventNotaryHandlersForParsedNotificationEventWereNotRegistered          = "notary handlers for parsed notification event were not registered"         // Info in ../node/pkg/morph/event/listener.go
+	EventRegisteredNewEventHandler                                          = "registered new event handler"
-	EventIgnoreNilEventParser                                               = "ignore nil event parser"                                                   // Info in ../node/pkg/morph/event/listener.go
+	EventIgnoreNilNotaryEventParser                                         = "ignore nil notary event parser"
-	EventListenerHasBeenAlreadyStartedIgnoreParser                          = "listener has been already started, ignore parser"                          // Warn in ../node/pkg/morph/event/listener.go
+	EventListenerHasBeenAlreadyStartedIgnoreNotaryParser                    = "listener has been already started, ignore notary parser"
-	EventRegisteredNewEventParser                                           = "registered new event parser"                                               // Debug in ../node/pkg/morph/event/listener.go
+	EventIgnoreNilNotaryEventHandler                                        = "ignore nil notary event handler"
-	EventIgnoreNilEventHandler                                              = "ignore nil event handler"                                                  // Warn in ../node/pkg/morph/event/listener.go
+	EventIgnoreHandlerOfNotaryEventWoParser                                 = "ignore handler of notary event w/o parser"
-	EventIgnoreHandlerOfEventWoParser                                       = "ignore handler of event w/o parser"                                        // Warn in ../node/pkg/morph/event/listener.go
+	EventIgnoreNilBlockHandler                                              = "ignore nil block handler"
-	EventRegisteredNewEventHandler                                          = "registered new event handler"                                              // Debug in ../node/pkg/morph/event/listener.go
+	SubscriberRemoteNotificationChannelHasBeenClosed                        = "remote notification channel has been closed"
-	EventIgnoreNilNotaryEventParser                                         = "ignore nil notary event parser"                                            // Info in ../node/pkg/morph/event/listener.go
+	SubscriberCantCastNotifyEventValueToTheNotifyStruct                     = "can't cast notify event value to the notify struct"
-	EventListenerHasBeenAlreadyStartedIgnoreNotaryParser                    = "listener has been already started, ignore notary parser"                   // Warn in ../node/pkg/morph/event/listener.go
+	SubscriberNewNotificationEventFromSidechain                             = "new notification event from sidechain"
-	EventIgnoreNilNotaryEventHandler                                        = "ignore nil notary event handler"                                           // Warn in ../node/pkg/morph/event/listener.go
+	SubscriberCantCastBlockEventValueToBlock                                = "can't cast block event value to block"
-	EventIgnoreHandlerOfNotaryEventWoParser                                 = "ignore handler of notary event w/o parser"                                 // Warn in ../node/pkg/morph/event/listener.go
+	SubscriberCantCastNotifyEventValueToTheNotaryRequestStruct              = "can't cast notify event value to the notary request struct"
-	EventIgnoreNilBlockHandler                                              = "ignore nil block handler"                                                  // Warn in ../node/pkg/morph/event/listener.go
+	SubscriberUnsupportedNotificationFromTheChain                           = "unsupported notification from the chain"
-	SubscriberRemoteNotificationChannelHasBeenClosed                        = "remote notification channel has been closed"                               // Warn in ../node/pkg/morph/subscriber/subscriber.go
+	BlobovniczaCreatingDirectoryForBoltDB                                   = "creating directory for BoltDB"
-	SubscriberCantCastNotifyEventValueToTheNotifyStruct                     = "can't cast notify event value to the notify struct"                        // Error in ../node/pkg/morph/subscriber/subscriber.go
+	BlobovniczaOpeningBoltDB                                                = "opening BoltDB"
-	SubscriberNewNotificationEventFromSidechain                             = "new notification event from sidechain"                                     // Debug in ../node/pkg/morph/subscriber/subscriber.go
+	BlobovniczaInitializing                                                 = "initializing..."
-	SubscriberCantCastBlockEventValueToBlock                                = "can't cast block event value to block"                                     // Error in ../node/pkg/morph/subscriber/subscriber.go
+	BlobovniczaAlreadyInitialized                                           = "already initialized"
-	SubscriberCantCastNotifyEventValueToTheNotaryRequestStruct              = "can't cast notify event value to the notary request struct"                // Error in ../node/pkg/morph/subscriber/subscriber.go
+	BlobovniczaCreatingBucketForSizeRange                                   = "creating bucket for size range"
-	SubscriberUnsupportedNotificationFromTheChain                           = "unsupported notification from the chain"                                   // Debug in ../node/pkg/morph/subscriber/subscriber.go
+	BlobovniczaClosingBoltDB                                                = "closing BoltDB"
-	BlobovniczaCreatingDirectoryForBoltDB                                   = "creating directory for BoltDB"                                             // Debug in ../node/pkg/local_object_storage/blobovnicza/control.go
+	BlobovniczaObjectWasRemovedFromBucket                                   = "object was removed from bucket"
-	BlobovniczaOpeningBoltDB                                                = "opening BoltDB"                                                            // Debug in ../node/pkg/local_object_storage/blobovnicza/control.go
+	BlobstorOpening                                                         = "opening..."
-	BlobovniczaInitializing                                                 = "initializing..."                                                           // Debug in ../node/pkg/local_object_storage/blobovnicza/control.go
+	BlobstorInitializing                                                    = "initializing..."
-	BlobovniczaAlreadyInitialized                                           = "already initialized"                                                       // Debug in ../node/pkg/local_object_storage/blobovnicza/control.go
+	BlobstorClosing                                                         = "closing..."
-	BlobovniczaCreatingBucketForSizeRange                                   = "creating bucket for size range"                                            // Debug in ../node/pkg/local_object_storage/blobovnicza/control.go
+	BlobstorCouldntCloseStorage                                             = "couldn't close storage"
-	BlobovniczaClosingBoltDB                                                = "closing BoltDB"                                                            // Debug in ../node/pkg/local_object_storage/blobovnicza/control.go
+	BlobstorErrorOccurredDuringObjectExistenceChecking                      = "error occurred during object existence checking"
-	BlobovniczaObjectWasRemovedFromBucket                                   = "object was removed from bucket"                                            // Debug in ../node/pkg/local_object_storage/blobovnicza/delete.go
+	BlobstorErrorOccurredDuringTheIteration                                 = "error occurred during the iteration"
-	BlobstorOpening                                                         = "opening..."                                                                // Debug in ../node/pkg/local_object_storage/blobstor/control.go
+	EngineShardHasBeenRemoved                                               = "shard has been removed"
-	BlobstorInitializing                                                    = "initializing..."                                                           // Debug in ../node/pkg/local_object_storage/blobstor/control.go
+	EngineCouldNotCloseRemovedShard                                         = "could not close removed shard"
-	BlobstorClosing                                                         = "closing..."                                                                // Debug in ../node/pkg/local_object_storage/blobstor/control.go
+	EngineCouldNotOpenShardClosingAndSkipping                               = "could not open shard, closing and skipping"
-	BlobstorCouldntCloseStorage                                             = "couldn't close storage"                                                    // Info in ../node/pkg/local_object_storage/blobstor/control.go
+	EngineCouldNotClosePartiallyInitializedShard                            = "could not close partially initialized shard"
-	BlobstorErrorOccurredDuringObjectExistenceChecking                      = "error occurred during object existence checking"                           // Warn in ../node/pkg/local_object_storage/blobstor/exists.go
+	EngineCouldNotInitializeShardClosingAndSkipping                         = "could not initialize shard, closing and skipping"
-	BlobstorErrorOccurredDuringTheIteration                                 = "error occurred during the iteration"                                       // Warn in ../node/pkg/local_object_storage/blobstor/iterate.go
+	EngineCouldNotCloseShard                                                = "could not close shard"
-	EngineShardHasBeenRemoved                                               = "shard has been removed"                                                    // Info in ../node/pkg/local_object_storage/engine/shards.go
+	EngineCouldNotReloadAShard                                              = "could not reload a shard"
-	EngineCouldNotCloseRemovedShard                                         = "could not close removed shard"                                             // Error in ../node/pkg/local_object_storage/engine/shards.go
+	EngineAddedNewShard                                                     = "added new shard"
-	EngineCouldNotOpenShardClosingAndSkipping                               = "could not open shard, closing and skipping"                                // Error in ../node/pkg/local_object_storage/engine/control.go
+	EngineCouldNotMarkObjectForShardRelocation                              = "could not mark object for shard relocation"
-	EngineCouldNotClosePartiallyInitializedShard                            = "could not close partially initialized shard"                               // Error in ../node/pkg/local_object_storage/engine/control.go
+	EngineCouldNotPutObjectToShard                                          = "could not put object to shard"
-	EngineCouldNotInitializeShardClosingAndSkipping                         = "could not initialize shard, closing and skipping"                          // Error in ../node/pkg/local_object_storage/engine/control.go
+	EngineErrorDuringSearchingForObjectChildren                             = "error during searching for object children"
-	EngineCouldNotCloseShard                                                = "could not close shard"                                                     // Debug in ../node/pkg/local_object_storage/engine/control.go
+	EngineCouldNotInhumeObjectInShard                                       = "could not inhume object in shard"
-	EngineCouldNotReloadAShard                                              = "could not reload a shard"                                                  // Error in ../node/pkg/local_object_storage/engine/control.go
+	EngineStartingRemovalOfLocallyredundantCopies                           = "starting removal of locally-redundant copies"
-	EngineAddedNewShard                                                     = "added new shard"                                                           // Info in ../node/pkg/local_object_storage/engine/control.go
+	EngineStartedDuplicatesRemovalRoutine                                   = "started duplicates removal routine"
-	EngineCouldNotMarkObjectForShardRelocation                              = "could not mark object for shard relocation"                                // Warn in ../node/pkg/local_object_storage/engine/put.go
+	EngineFinishedRemovalOfLocallyredundantCopies                           = "finished removal of locally-redundant copies"
-	EngineCouldNotPutObjectToShard                                          = "could not put object to shard"                                             // Warn in ../node/pkg/local_object_storage/engine/put.go
+	EngineRemovingAnObjectWithoutFullLockingCheck                           = "removing an object without full locking check"
-	EngineErrorDuringSearchingForObjectChildren                             = "error during searching for object children"                                // Warn in ../node/pkg/local_object_storage/engine/delete.go
+	EngineInterruptProcessingTheExpiredLocks                                = "interrupt processing the expired locks"
-	EngineCouldNotInhumeObjectInShard                                       = "could not inhume object in shard"                                          // Debug in ../node/pkg/local_object_storage/engine/delete.go
+	EngineInterruptProcessingTheDeletedLocks                                = "interrupt processing the deleted locks"
-	EngineStartingRemovalOfLocallyredundantCopies                           = "starting removal of locally-redundant copies"                              // Info in ../node/pkg/local_object_storage/engine/remove_copies.go
+	EngineFailedToMoveShardInDegradedreadonlyModeMovingToReadonly           = "failed to move shard in degraded-read-only mode, moving to read-only"
-	EngineStartedDuplicatesRemovalRoutine                                   = "started duplicates removal routine"                                        // Debug in ../node/pkg/local_object_storage/engine/remove_copies.go
+	EngineFailedToMoveShardInReadonlyMode                                   = "failed to move shard in read-only mode"
-	EngineFinishedRemovalOfLocallyredundantCopies                           = "finished removal of locally-redundant copies"                              // Error in ../node/pkg/local_object_storage/engine/remove_copies.go
+	EngineShardIsMovedInReadonlyModeDueToErrorThreshold                     = "shard is moved in read-only mode due to error threshold"
-	EngineRemovingAnObjectWithoutFullLockingCheck                           = "removing an object without full locking check"                             // Warn in ../node/pkg/local_object_storage/engine/inhume.go
+	EngineShardIsMovedInDegradedModeDueToErrorThreshold                     = "shard is moved in degraded mode due to error threshold"
-	EngineInterruptProcessingTheExpiredLocks                                = "interrupt processing the expired locks"                                    // Info in ../node/pkg/local_object_storage/engine/inhume.go
+	EngineModeChangeIsInProgressIgnoringSetmodeRequest                      = "mode change is in progress, ignoring set-mode request"
-	EngineInterruptProcessingTheDeletedLocks                                = "interrupt processing the deleted locks"                                    // Info in ../node/pkg/local_object_storage/engine/inhume.go
+	EngineStartedShardsEvacuation                                           = "started shards evacuation"
-	EngineFailedToMoveShardInDegradedreadonlyModeMovingToReadonly           = "failed to move shard in degraded-read-only mode, moving to read-only"      // Error in ../node/pkg/local_object_storage/engine/engine.go
+	EngineFinishedSuccessfullyShardsEvacuation                              = "shards evacuation finished successfully"
-	EngineFailedToMoveShardInReadonlyMode                                   = "failed to move shard in read-only mode"                                    // Error in ../node/pkg/local_object_storage/engine/engine.go
+	EngineFinishedWithErrorShardsEvacuation                                 = "shards evacuation finished with error"
-	EngineShardIsMovedInReadonlyModeDueToErrorThreshold                     = "shard is moved in read-only mode due to error threshold"                   // Info in ../node/pkg/local_object_storage/engine/engine.go
+	EngineObjectIsMovedToAnotherShard                                       = "object is moved to another shard"
-	EngineShardIsMovedInDegradedModeDueToErrorThreshold                     = "shard is moved in degraded mode due to error threshold"                    // Info in ../node/pkg/local_object_storage/engine/engine.go
+	MetabaseMissingMatcher                                                  = "missing matcher"
-	EngineModeChangeIsInProgressIgnoringSetmodeRequest                      = "mode change is in progress, ignoring set-mode request"                     // Debug in ../node/pkg/local_object_storage/engine/engine.go
+	MetabaseErrorInFKBTSelection                                            = "error in FKBT selection"
-	EngineStartedShardsEvacuation                                           = "started shards evacuation"                                                 // Info in ../node/pkg/local_object_storage/engine/evacuate.go
+	MetabaseCantDecodeListBucketLeaf                                        = "can't decode list bucket leaf"
-	EngineFinishedSuccessfullyShardsEvacuation                              = "shards evacuation finished successfully"                                   // Info in ../node/pkg/local_object_storage/engine/evacuate.go
+	MetabaseUnknownOperation                                                = "unknown operation"
-	EngineFinishedWithErrorShardsEvacuation                                 = "shards evacuation finished with error"                                     // Error in ../node/pkg/local_object_storage/engine/evacuate.go
+	MetabaseCantIterateOverTheBucket                                        = "can't iterate over the bucket"
-	EngineObjectIsMovedToAnotherShard                                       = "object is moved to another shard"                                          // Debug in ../node/pkg/local_object_storage/engine/evacuate.go
+	MetabaseCouldNotIterateOverTheBuckets                                   = "could not iterate over the buckets"
-	MetabaseMissingMatcher                                                  = "missing matcher"                                                           // Debug in ../node/pkg/local_object_storage/metabase/select.go
+	MetabaseCreatedDirectoryForMetabase                                     = "created directory for Metabase"
-	MetabaseErrorInFKBTSelection                                            = "error in FKBT selection"                                                   // Debug in ../node/pkg/local_object_storage/metabase/select.go
+	MetabaseOpenedBoltDBInstanceForMetabase                                 = "opened boltDB instance for Metabase"
-	MetabaseCantDecodeListBucketLeaf                                        = "can't decode list bucket leaf"                                             // Debug in ../node/pkg/local_object_storage/metabase/select.go
+	MetabaseCheckingMetabaseVersion                                         = "checking metabase version"
-	MetabaseUnknownOperation                                                = "unknown operation"                                                         // Debug in ../node/pkg/local_object_storage/metabase/select.go
+	ShardCantSelectAllObjects                                               = "can't select all objects"
-	MetabaseCantIterateOverTheBucket                                        = "can't iterate over the bucket"                                             // Debug in ../node/pkg/local_object_storage/metabase/select.go
+	ShardSettingShardMode                                                   = "setting shard mode"
-	MetabaseCouldNotIterateOverTheBuckets                                   = "could not iterate over the buckets"                                        // Debug in ../node/pkg/local_object_storage/metabase/select.go
+	ShardShardModeSetSuccessfully                                           = "shard mode set successfully"
-	MetabaseCreatedDirectoryForMetabase                                     = "created directory for Metabase"                                            // Debug in ../node/pkg/local_object_storage/metabase/control.go
+	ShardCouldNotMarkObjectForShardRelocationInMetabase                     = "could not mark object for shard relocation in metabase"
-	MetabaseOpenedBoltDBInstanceForMetabase                                 = "opened boltDB instance for Metabase"                                       // Debug in ../node/pkg/local_object_storage/metabase/control.go
+	ShardCantDeleteObjectFromWriteCache                                     = "can't delete object from write cache"
-	MetabaseCheckingMetabaseVersion                                         = "checking metabase version"                                                 // Debug in ../node/pkg/local_object_storage/metabase/control.go
+	ShardCantGetStorageIDFromMetabase                                       = "can't get storage ID from metabase"
-	ShardCantSelectAllObjects                                               = "can't select all objects"                                                  // Debug in ../node/pkg/local_object_storage/shard/list.go
+	ShardCantRemoveObjectFromBlobStor                                       = "can't remove object from blobStor"
-	ShardSettingShardMode                                                   = "setting shard mode"                                                        // Info in ../node/pkg/local_object_storage/shard/mode.go
+	ShardFetchingObjectWithoutMeta                                          = "fetching object without meta"
-	ShardShardModeSetSuccessfully                                           = "shard mode set successfully"                                               // Info in ../node/pkg/local_object_storage/shard/mode.go
+	ShardObjectIsMissingInWritecache                                        = "object is missing in write-cache"
-	ShardCouldNotMarkObjectForShardRelocationInMetabase                     = "could not mark object for shard relocation in metabase"                    // Debug in ../node/pkg/local_object_storage/shard/move.go
+	ShardFailedToFetchObjectFromWritecache                                  = "failed to fetch object from write-cache"
-	ShardCantDeleteObjectFromWriteCache                                     = "can't delete object from write cache"                                      // Warn in ../node/pkg/local_object_storage/shard/delete.go
+	ShardCantPutObjectToTheWritecacheTryingBlobstor                         = "can't put object to the write-cache, trying blobstor"
-	ShardCantGetStorageIDFromMetabase                                       = "can't get storage ID from metabase"                                        // Debug in ../node/pkg/local_object_storage/shard/delete.go
+	ShardMetaObjectCounterRead                                              = "meta: object counter read"
-	ShardCantRemoveObjectFromBlobStor                                       = "can't remove object from blobStor"                                         // Debug in ../node/pkg/local_object_storage/shard/delete.go
+	ShardMetaCantReadContainerList                                          = "meta: can't read container list"
-	ShardFetchingObjectWithoutMeta                                          = "fetching object without meta"                                              // Warn in ../node/pkg/local_object_storage/shard/get.go
+	ShardMetaCantReadContainerSize                                          = "meta: can't read container size"
-	ShardObjectIsMissingInWritecache                                        = "object is missing in write-cache"                                          // Debug in ../node/pkg/local_object_storage/shard/get.go
+	ShardMetabaseFailureSwitchingMode                                       = "metabase failure, switching mode"
-	ShardFailedToFetchObjectFromWritecache                                  = "failed to fetch object from write-cache"                                   // Error in ../node/pkg/local_object_storage/shard/get.go
+	ShardCantMoveShardToReadonlySwitchMode                                  = "can't move shard to readonly, switch mode"
-	ShardCantPutObjectToTheWritecacheTryingBlobstor                         = "can't put object to the write-cache, trying blobstor"                      // Debug in ../node/pkg/local_object_storage/shard/put.go
+	ShardCouldNotUnmarshalObject                                            = "could not unmarshal object"
-	ShardMetaObjectCounterRead                                              = "meta: object counter read"                                                 // Warn in ../node/pkg/local_object_storage/shard/shard.go
+	ShardCouldNotCloseShardComponent                                        = "could not close shard component"
-	ShardMetaCantReadContainerList                                          = "meta: can't read container list"                                           // Warn in ../node/pkg/local_object_storage/shard/shard.go
+	ShardCantOpenMetabaseMoveToADegradedMode                                = "can't open metabase, move to a degraded mode"
-	ShardMetaCantReadContainerSize                                          = "meta: can't read container size"                                           // Warn in ../node/pkg/local_object_storage/shard/shard.go
+	ShardCantInitializeMetabaseMoveToADegradedreadonlyMode                  = "can't initialize metabase, move to a degraded-read-only mode"
-	ShardMetabaseFailureSwitchingMode                                       = "metabase failure, switching mode"                                          // Error in ../node/pkg/local_object_storage/shard/control.go
+	ShardTryingToRestoreReadwriteMode                                       = "trying to restore read-write mode"
-	ShardCantMoveShardToReadonlySwitchMode                                  = "can't move shard to readonly, switch mode"                                 // Error in ../node/pkg/local_object_storage/shard/control.go
+	ShardStopEventListenerByClosedChannel                                   = "stop event listener by closed channel"
-	ShardCouldNotUnmarshalObject                                            = "could not unmarshal object"                                                // Warn in ../node/pkg/local_object_storage/shard/control.go
+	ShardCouldNotSubmitGCJobToWorkerPool                                    = "could not submit GC job to worker pool"
-	ShardCouldNotCloseShardComponent                                        = "could not close shard component"                                           // Error in ../node/pkg/local_object_storage/shard/control.go
+	ShardGCIsStopped                                                        = "GC is stopped"
-	ShardCantOpenMetabaseMoveToADegradedMode                                = "can't open metabase, move to a degraded mode"                              // Error in ../node/pkg/local_object_storage/shard/control.go
+	ShardWaitingForGCWorkersToStop                                          = "waiting for GC workers to stop..."
-	ShardCantInitializeMetabaseMoveToADegradedreadonlyMode                  = "can't initialize metabase, move to a degraded-read-only mode"              // Error in ../node/pkg/local_object_storage/shard/control.go
+	ShardIteratorOverMetabaseGraveyardFailed                                = "iterator over metabase graveyard failed"
-	ShardTryingToRestoreReadwriteMode                                       = "trying to restore read-write mode"                                         // Info in ../node/pkg/local_object_storage/shard/control.go
+	ShardCouldNotDeleteTheObjects                                           = "could not delete the objects"
-	ShardStopEventListenerByClosedChannel                                   = "stop event listener by closed channel"                                     // Warn in ../node/pkg/local_object_storage/shard/gc.go
+	ShardIteratorOverExpiredObjectsFailed                                   = "iterator over expired objects failed"
-	ShardCouldNotSubmitGCJobToWorkerPool                                    = "could not submit GC job to worker pool"                                    // Warn in ../node/pkg/local_object_storage/shard/gc.go
+	ShardCouldNotInhumeTheObjects                                           = "could not inhume the objects"
-	ShardGCIsStopped                                                        = "GC is stopped"                                                             // Debug in ../node/pkg/local_object_storage/shard/gc.go
+	ShardStartedExpiredTombstonesHandling                                   = "started expired tombstones handling"
-	ShardWaitingForGCWorkersToStop                                          = "waiting for GC workers to stop..."                                         // Info in ../node/pkg/local_object_storage/shard/gc.go
+	ShardIteratingTombstones                                                = "iterating tombstones"
-	ShardIteratorOverMetabaseGraveyardFailed                                = "iterator over metabase graveyard failed"                                   // Warn in ../node/pkg/local_object_storage/shard/gc.go
+	ShardShardIsInADegradedModeSkipCollectingExpiredTombstones              = "shard is in a degraded mode, skip collecting expired tombstones"
-	ShardCouldNotDeleteTheObjects                                           = "could not delete the objects"                                              // Warn in ../node/pkg/local_object_storage/shard/gc.go
+	ShardIteratorOverGraveyardFailed                                        = "iterator over graveyard failed"
-	ShardIteratorOverExpiredObjectsFailed                                   = "iterator over expired objects failed"                                      // Warn in ../node/pkg/local_object_storage/shard/gc.go
+	ShardHandlingExpiredTombstonesBatch                                     = "handling expired tombstones batch"
-	ShardCouldNotInhumeTheObjects                                           = "could not inhume the objects"                                              // Warn in ../node/pkg/local_object_storage/shard/gc.go
+	ShardFinishedExpiredTombstonesHandling                                  = "finished expired tombstones handling"
-	ShardStartedExpiredTombstonesHandling                                   = "started expired tombstones handling"                                       // Debug in ../node/pkg/local_object_storage/shard/gc.go
+	ShardIteratorOverExpiredLocksFailed                                     = "iterator over expired locks failed"
-	ShardIteratingTombstones                                                = "iterating tombstones"                                                      // Debug in ../node/pkg/local_object_storage/shard/gc.go
+	ShardCouldNotMarkTombstonesAsGarbage                                    = "could not mark tombstones as garbage"
-	ShardShardIsInADegradedModeSkipCollectingExpiredTombstones              = "shard is in a degraded mode, skip collecting expired tombstones"           // Debug in ../node/pkg/local_object_storage/shard/gc.go
+	ShardCouldNotDropExpiredGraveRecords                                    = "could not drop expired grave records"
-	ShardIteratorOverGraveyardFailed                                        = "iterator over graveyard failed"                                            // Error in ../node/pkg/local_object_storage/shard/gc.go
+	ShardFailureToUnlockObjects                                             = "failure to unlock objects"
-	ShardHandlingExpiredTombstonesBatch                                     = "handling expired tombstones batch"                                         // Debug in ../node/pkg/local_object_storage/shard/gc.go
+	ShardFailureToMarkLockersAsGarbage                                      = "failure to mark lockers as garbage"
-	ShardFinishedExpiredTombstonesHandling                                  = "finished expired tombstones handling"                                      // Debug in ../node/pkg/local_object_storage/shard/gc.go
+	ShardFailureToGetExpiredUnlockedObjects                                 = "failure to get expired unlocked objects"
-	ShardIteratorOverExpiredLocksFailed                                     = "iterator over expired locks failed"                                        // Warn in ../node/pkg/local_object_storage/shard/gc.go
+	ShardCouldNotMarkObjectToDeleteInMetabase                               = "could not mark object to delete in metabase"
-	ShardCouldNotMarkTombstonesAsGarbage                                    = "could not mark tombstones as garbage"                                      // Warn in ../node/pkg/local_object_storage/shard/gc.go
-	ShardCouldNotDropExpiredGraveRecords                                    = "could not drop expired grave records"                                      // Warn in ../node/pkg/local_object_storage/shard/gc.go
-	ShardFailureToUnlockObjects                                             = "failure to unlock objects"                                                 // Warn in ../node/pkg/local_object_storage/shard/gc.go
-	ShardFailureToMarkLockersAsGarbage                                      = "failure to mark lockers as garbage"                                        // Warn in ../node/pkg/local_object_storage/shard/gc.go
-	ShardFailureToGetExpiredUnlockedObjects                                 = "failure to get expired unlocked objects"                                   // Warn in ../node/pkg/local_object_storage/shard/gc.go
-	ShardCouldNotMarkObjectToDeleteInMetabase                               = "could not mark object to delete in metabase"                               // Debug in ../node/pkg/local_object_storage/shard/inhume.go
 	WritecacheBadgerInitExperimental                                        = "initializing badger-backed experimental writecache"
-	WritecacheTriedToFlushItemsFromWritecache                               = "tried to flush items from write-cache"       // Debug in ../node/pkg/local_object_storage/writecache/flush.go
+	WritecacheTriedToFlushItemsFromWritecache                               = "tried to flush items from write-cache"
-	WritecacheWaitingForChannelsToFlush                                     = "waiting for channels to flush"               // Info in ../node/pkg/local_object_storage/writecache/mode.go
+	WritecacheWaitingForChannelsToFlush                                     = "waiting for channels to flush"
-	WritecacheFillingFlushMarksForObjectsInFSTree                           = "filling flush marks for objects in FSTree"   // Info in ../node/pkg/local_object_storage/writecache/init.go
+	WritecacheFillingFlushMarksForObjectsInFSTree                           = "filling flush marks for objects in FSTree"
-	WritecacheFinishedUpdatingFSTreeFlushMarks                              = "finished updating FSTree flush marks"        // Info in ../node/pkg/local_object_storage/writecache/init.go
+	WritecacheFinishedUpdatingFSTreeFlushMarks                              = "finished updating FSTree flush marks"
-	WritecacheFillingFlushMarksForObjectsInDatabase                         = "filling flush marks for objects in database" // Info in ../node/pkg/local_object_storage/writecache/init.go
+	WritecacheFillingFlushMarksForObjectsInDatabase                         = "filling flush marks for objects in database"
-	WritecacheFinishedUpdatingFlushMarks                                    = "finished updating flush marks"               // Info in ../node/pkg/local_object_storage/writecache/init.go
+	WritecacheFinishedUpdatingFlushMarks                                    = "finished updating flush marks"
-	WritecacheCantRemoveObjectsFromTheDatabase                              = "can't remove objects from the database"      // Error in ../node/pkg/local_object_storage/writecache/storage.go
+	WritecacheCantRemoveObjectsFromTheDatabase                              = "can't remove objects from the database"
-	WritecacheCantParseAddress                                              = "can't parse address"                         // Error in ../node/pkg/local_object_storage/writecache/storage.go
+	WritecacheCantParseAddress                                              = "can't parse address"
-	WritecacheCantRemoveObjectFromWritecache                                = "can't remove object from write-cache"        // Error in ../node/pkg/local_object_storage/writecache/storage.go
+	WritecacheCantRemoveObjectFromWritecache                                = "can't remove object from write-cache"
 	WritecacheDBValueLogGCRunCompleted                                      = "value log GC run completed"
-	BlobovniczatreeCouldNotGetObjectFromLevel                               = "could not get object from level"                                     // Debug in ../node/pkg/local_object_storage/blobstor/blobovniczatree/get_range.go
+	WritecacheBadgerObjAlreadyScheduled                                     = "object already scheduled for flush"
-	BlobovniczatreeCouldNotReadPayloadRangeFromOpenedBlobovnicza            = "could not read payload range from opened blobovnicza"                // Debug in ../node/pkg/local_object_storage/blobstor/blobovniczatree/get_range.go
+	BlobovniczatreeCouldNotGetObjectFromLevel                               = "could not get object from level"
-	BlobovniczatreeCouldNotReadPayloadRangeFromActiveBlobovnicza            = "could not read payload range from active blobovnicza"                // Debug in ../node/pkg/local_object_storage/blobstor/blobovniczatree/get_range.go
+	BlobovniczatreeCouldNotReadPayloadRangeFromOpenedBlobovnicza            = "could not read payload range from opened blobovnicza"
-	BlobovniczatreeCouldNotCloseBlobovnicza                                 = "could not close Blobovnicza"                                         // Error in ../node/pkg/local_object_storage/blobstor/blobovniczatree/blobovnicza.go
+	BlobovniczatreeCouldNotReadPayloadRangeFromActiveBlobovnicza            = "could not read payload range from active blobovnicza"
-	BlobovniczatreeBlobovniczaSuccessfullyClosedOnEvict                     = "blobovnicza successfully closed on evict"                            // Debug in ../node/pkg/local_object_storage/blobstor/blobovniczatree/blobovnicza.go
+	BlobovniczatreeCouldNotCloseBlobovnicza                                 = "could not close Blobovnicza"
-	BlobovniczatreeUpdatingActiveBlobovnicza                                = "updating active blobovnicza..."                                      // Debug in ../node/pkg/local_object_storage/blobstor/blobovniczatree/blobovnicza.go
+	BlobovniczatreeBlobovniczaSuccessfullyClosedOnEvict                     = "blobovnicza successfully closed on evict"
-	BlobovniczatreeActiveBlobovniczaSuccessfullyUpdated                     = "active blobovnicza successfully updated"                             // Debug in ../node/pkg/local_object_storage/blobstor/blobovniczatree/blobovnicza.go
+	BlobovniczatreeUpdatingActiveBlobovnicza                                = "updating active blobovnicza..."
-	BlobovniczatreeBlobovniczaSuccessfullyActivated                         = "blobovnicza successfully activated"                                  // Debug in ../node/pkg/local_object_storage/blobstor/blobovniczatree/blobovnicza.go
+	BlobovniczatreeActiveBlobovniczaSuccessfullyUpdated                     = "active blobovnicza successfully updated"
-	BlobovniczatreeCouldNotRemoveObjectFromLevel                            = "could not remove object from level"                                  // Debug in ../node/pkg/local_object_storage/blobstor/blobovniczatree/delete.go
+	BlobovniczatreeBlobovniczaSuccessfullyActivated                         = "blobovnicza successfully activated"
-	BlobovniczatreeCouldNotRemoveObjectFromOpenedBlobovnicza                = "could not remove object from opened blobovnicza"                     // Debug in ../node/pkg/local_object_storage/blobstor/blobovniczatree/delete.go
+	BlobovniczatreeCouldNotRemoveObjectFromLevel                            = "could not remove object from level"
-	BlobovniczatreeCouldNotRemoveObjectFromActiveBlobovnicza                = "could not remove object from active blobovnicza"                     // Debug in ../node/pkg/local_object_storage/blobstor/blobovniczatree/delete.go
+	BlobovniczatreeCouldNotRemoveObjectFromOpenedBlobovnicza                = "could not remove object from opened blobovnicza"
-	BlobovniczatreeCouldNotGetActiveBlobovnicza                             = "could not get active blobovnicza"                                    // reportError in ../node/pkg/local_object_storage/blobstor/blobovniczatree/put.go
+	BlobovniczatreeCouldNotRemoveObjectFromActiveBlobovnicza                = "could not remove object from active blobovnicza"
-	BlobovniczatreeBlobovniczaOverflowed                                    = "blobovnicza overflowed"                                              // Debug in ../node/pkg/local_object_storage/blobstor/blobovniczatree/put.go
+	BlobovniczatreeCouldNotGetActiveBlobovnicza                             = "could not get active blobovnicza"
-	BlobovniczatreeCouldNotUpdateActiveBlobovnicza                          = "could not update active blobovnicza"                                 // reportError in ../node/pkg/local_object_storage/blobstor/blobovniczatree/put.go
+	BlobovniczatreeBlobovniczaOverflowed                                    = "blobovnicza overflowed"
-	BlobovniczatreeCouldNotPutObjectToActiveBlobovnicza                     = "could not put object to active blobovnicza"                          // reportError in ../node/pkg/local_object_storage/blobstor/blobovniczatree/put.go
+	BlobovniczatreeCouldNotUpdateActiveBlobovnicza                          = "could not update active blobovnicza"
-	BlobovniczatreeCouldNotReadObjectFromOpenedBlobovnicza                  = "could not read object from opened blobovnicza"                       // Debug in ../node/pkg/local_object_storage/blobstor/blobovniczatree/get.go
+	BlobovniczatreeCouldNotPutObjectToActiveBlobovnicza                     = "could not put object to active blobovnicza"
-	BlobovniczatreeCouldNotGetObjectFromActiveBlobovnicza                   = "could not get object from active blobovnicza"                        // Debug in ../node/pkg/local_object_storage/blobstor/blobovniczatree/get.go
+	BlobovniczatreeCouldNotReadObjectFromOpenedBlobovnicza                  = "could not read object from opened blobovnicza"
-	BlobovniczatreeInitializingBlobovniczas                                 = "initializing Blobovnicza's"                                          // Debug in ../node/pkg/local_object_storage/blobstor/blobovniczatree/control.go
+	BlobovniczatreeCouldNotGetObjectFromActiveBlobovnicza                   = "could not get object from active blobovnicza"
-	BlobovniczatreeReadonlyModeSkipBlobovniczasInitialization               = "read-only mode, skip blobovniczas initialization..."                 // Debug in ../node/pkg/local_object_storage/blobstor/blobovniczatree/control.go
+	BlobovniczatreeInitializingBlobovniczas                                 = "initializing Blobovnicza's"
-	BlobovniczatreeBlobovniczaSuccessfullyInitializedClosing                = "blobovnicza successfully initialized, closing..."                    // Debug in ../node/pkg/local_object_storage/blobstor/blobovniczatree/control.go
+	BlobovniczatreeReadonlyModeSkipBlobovniczasInitialization               = "read-only mode, skip blobovniczas initialization..."
-	BlobovniczatreeCouldNotCloseActiveBlobovnicza                           = "could not close active blobovnicza"                                  // Debug in ../node/pkg/local_object_storage/blobstor/blobovniczatree/control.go
+	BlobovniczatreeBlobovniczaSuccessfullyInitializedClosing                = "blobovnicza successfully initialized, closing..."
-	AlphabetTick                                                            = "tick"                                                                // Info in ../node/pkg/innerring/processors/alphabet/handlers.go
+	BlobovniczatreeCouldNotCloseActiveBlobovnicza                           = "could not close active blobovnicza"
-	AlphabetAlphabetProcessorWorkerPoolDrained                              = "alphabet processor worker pool drained"                              // Warn in ../node/pkg/innerring/processors/alphabet/handlers.go
+	AlphabetTick                                                            = "tick"
-	AlphabetNonAlphabetModeIgnoreGasEmissionEvent                           = "non alphabet mode, ignore gas emission event"                        // Info in ../node/pkg/innerring/processors/alphabet/process_emit.go
+	AlphabetAlphabetProcessorWorkerPoolDrained                              = "alphabet processor worker pool drained"
-	AlphabetNodeIsOutOfAlphabetRangeIgnoreGasEmissionEvent                  = "node is out of alphabet range, ignore gas emission event"            // Debug in ../node/pkg/innerring/processors/alphabet/process_emit.go
+	AlphabetNonAlphabetModeIgnoreGasEmissionEvent                           = "non alphabet mode, ignore gas emission event"
-	AlphabetCantInvokeAlphabetEmitMethod                                    = "can't invoke alphabet emit method"                                   // Warn in ../node/pkg/innerring/processors/alphabet/process_emit.go
+	AlphabetNodeIsOutOfAlphabetRangeIgnoreGasEmissionEvent                  = "node is out of alphabet range, ignore gas emission event"
-	AlphabetStorageNodeEmissionIsOff                                        = "storage node emission is off"                                        // Info in ../node/pkg/innerring/processors/alphabet/process_emit.go
+	AlphabetCantInvokeAlphabetEmitMethod                                    = "can't invoke alphabet emit method"
-	AlphabetCantGetNetmapSnapshotToEmitGasToStorageNodes                    = "can't get netmap snapshot to emit gas to storage nodes"              // Warn in ../node/pkg/innerring/processors/alphabet/process_emit.go
+	AlphabetStorageNodeEmissionIsOff                                        = "storage node emission is off"
-	AlphabetGasEmission                                                     = "gas emission"                                                        // Debug in ../node/pkg/innerring/processors/alphabet/process_emit.go
+	AlphabetCantGetNetmapSnapshotToEmitGasToStorageNodes                    = "can't get netmap snapshot to emit gas to storage nodes"
-	AlphabetCantParseNodePublicKey                                          = "can't parse node public key"                                         // Warn in ../node/pkg/innerring/processors/alphabet/process_emit.go
+	AlphabetGasEmission                                                     = "gas emission"
-	AlphabetCantTransferGas                                                 = "can't transfer gas"                                                  // Warn in ../node/pkg/innerring/processors/alphabet/process_emit.go
+	AlphabetCantParseNodePublicKey                                          = "can't parse node public key"
-	AlphabetCantTransferGasToWallet                                         = "can't transfer gas to wallet"                                        // Warn in ../node/pkg/innerring/processors/alphabet/process_emit.go
+	AlphabetCantTransferGas                                                 = "can't transfer gas"
-	AlphabetAlphabetWorkerPool                                              = "alphabet worker pool"                                                // Debug in ../node/pkg/innerring/processors/alphabet/processor.go
+	AlphabetCantTransferGasToWallet                                         = "can't transfer gas to wallet"
-	BalanceBalanceWorkerPoolDrained                                         = "balance worker pool drained"                                         // Warn in ../node/pkg/innerring/processors/balance/handlers.go
+	AlphabetAlphabetWorkerPool                                              = "alphabet worker pool"
-	BalanceNonAlphabetModeIgnoreBalanceLock                                 = "non alphabet mode, ignore balance lock"                              // Info in ../node/pkg/innerring/processors/balance/process_assets.go
+	BalanceBalanceWorkerPoolDrained                                         = "balance worker pool drained"
-	BalanceCantSendLockAssetTx                                              = "can't send lock asset tx"                                            // Error in ../node/pkg/innerring/processors/balance/process_assets.go
+	BalanceNonAlphabetModeIgnoreBalanceLock                                 = "non alphabet mode, ignore balance lock"
-	BalanceBalanceWorkerPool                                                = "balance worker pool"                                                 // Debug in ../node/pkg/innerring/processors/balance/processor.go
+	BalanceCantSendLockAssetTx                                              = "can't send lock asset tx"
-	ContainerContainerWorkerPool                                            = "container worker pool"                                               // Debug in ../node/pkg/innerring/processors/container/processor.go
+	BalanceBalanceWorkerPool                                                = "balance worker pool"
-	ContainerContainerProcessorWorkerPoolDrained                            = "container processor worker pool drained"                             // Warn in ../node/pkg/innerring/processors/container/handlers.go
+	ContainerContainerWorkerPool                                            = "container worker pool"
-	ContainerNonAlphabetModeIgnoreContainerPut                              = "non alphabet mode, ignore container put"                             // Info in ../node/pkg/innerring/processors/container/process_container.go
+	ContainerContainerProcessorWorkerPoolDrained                            = "container processor worker pool drained"
-	ContainerPutContainerCheckFailed                                        = "put container check failed"                                          // Error in ../node/pkg/innerring/processors/container/process_container.go
+	ContainerNonAlphabetModeIgnoreContainerPut                              = "non alphabet mode, ignore container put"
-	ContainerCouldNotApprovePutContainer                                    = "could not approve put container"                                     // Error in ../node/pkg/innerring/processors/container/process_container.go
+	ContainerPutContainerCheckFailed                                        = "put container check failed"
-	ContainerNonAlphabetModeIgnoreContainerDelete                           = "non alphabet mode, ignore container delete"                          // Info in ../node/pkg/innerring/processors/container/process_container.go
+	ContainerCouldNotApprovePutContainer                                    = "could not approve put container"
-	ContainerDeleteContainerCheckFailed                                     = "delete container check failed"                                       // Error in ../node/pkg/innerring/processors/container/process_container.go
+	ContainerNonAlphabetModeIgnoreContainerDelete                           = "non alphabet mode, ignore container delete"
-	ContainerCouldNotApproveDeleteContainer                                 = "could not approve delete container"                                  // Error in ../node/pkg/innerring/processors/container/process_container.go
+	ContainerDeleteContainerCheckFailed                                     = "delete container check failed"
-	ContainerNonAlphabetModeIgnoreSetEACL                                   = "non alphabet mode, ignore set EACL"                                  // Info in ../node/pkg/innerring/processors/container/process_eacl.go
+	ContainerCouldNotApproveDeleteContainer                                 = "could not approve delete container"
-	ContainerSetEACLCheckFailed                                             = "set EACL check failed"                                               // Error in ../node/pkg/innerring/processors/container/process_eacl.go
+	ContainerNonAlphabetModeIgnoreSetEACL                                   = "non alphabet mode, ignore set EACL"
-	ContainerCouldNotApproveSetEACL                                         = "could not approve set EACL"                                          // Error in ../node/pkg/innerring/processors/container/process_eacl.go
+	ContainerSetEACLCheckFailed                                             = "set EACL check failed"
-	FrostFSNonAlphabetModeIgnoreBind                                        = "non alphabet mode, ignore bind"                                      // Info in ../node/pkg/innerring/processors/frostfs/process_bind.go
+	ContainerCouldNotApproveSetEACL                                         = "could not approve set EACL"
-	FrostFSInvalidManageKeyEvent                                            = "invalid manage key event"                                            // Error in ../node/pkg/innerring/processors/frostfs/process_bind.go
+	FrostFSNonAlphabetModeIgnoreBind                                        = "non alphabet mode, ignore bind"
-	FrostFSCouldNotDecodeScriptHashFromBytes                                = "could not decode script hash from bytes"                             // Error in ../node/pkg/innerring/processors/frostfs/process_bind.go
+	FrostFSInvalidManageKeyEvent                                            = "invalid manage key event"
-	FrostFSNonAlphabetModeIgnoreConfig                                      = "non alphabet mode, ignore config"                                    // Info in ../node/pkg/innerring/processors/frostfs/process_config.go
+	FrostFSCouldNotDecodeScriptHashFromBytes                                = "could not decode script hash from bytes"
-	FrostFSCantRelaySetConfigEvent                                          = "can't relay set config event"                                        // Error in ../node/pkg/innerring/processors/frostfs/process_config.go
+	FrostFSNonAlphabetModeIgnoreConfig                                      = "non alphabet mode, ignore config"
-	FrostFSFrostfsWorkerPool                                                = "frostfs worker pool"                                                 // Debug in ../node/pkg/innerring/processors/frostfs/processor.go
+	FrostFSCantRelaySetConfigEvent                                          = "can't relay set config event"
-	FrostFSFrostfsProcessorWorkerPoolDrained                                = "frostfs processor worker pool drained"                               // Warn in ../node/pkg/innerring/processors/frostfs/handlers.go
+	FrostFSFrostfsWorkerPool                                                = "frostfs worker pool"
-	FrostFSNonAlphabetModeIgnoreDeposit                                     = "non alphabet mode, ignore deposit"                                   // Info in ../node/pkg/innerring/processors/frostfs/process_assets.go
+	FrostFSFrostfsProcessorWorkerPoolDrained                                = "frostfs processor worker pool drained"
-	FrostFSCantTransferAssetsToBalanceContract                              = "can't transfer assets to balance contract"                           // Error in ../node/pkg/innerring/processors/frostfs/process_assets.go
+	FrostFSNonAlphabetModeIgnoreDeposit                                     = "non alphabet mode, ignore deposit"
-	FrostFSDoubleMintEmissionDeclined                                       = "double mint emission declined"                                       // Warn in ../node/pkg/innerring/processors/frostfs/process_assets.go
+	FrostFSCantTransferAssetsToBalanceContract                              = "can't transfer assets to balance contract"
-	FrostFSCantGetGasBalanceOfTheNode                                       = "can't get gas balance of the node"                                   // Error in ../node/pkg/innerring/processors/frostfs/process_assets.go
+	FrostFSDoubleMintEmissionDeclined                                       = "double mint emission declined"
-	FrostFSGasBalanceThresholdHasBeenReached                                = "gas balance threshold has been reached"                              // Warn in ../node/pkg/innerring/processors/frostfs/process_assets.go
+	FrostFSCantGetGasBalanceOfTheNode                                       = "can't get gas balance of the node"
-	FrostFSCantTransferNativeGasToReceiver                                  = "can't transfer native gas to receiver"                               // Error in ../node/pkg/innerring/processors/frostfs/process_assets.go
+	FrostFSGasBalanceThresholdHasBeenReached                                = "gas balance threshold has been reached"
-	FrostFSNonAlphabetModeIgnoreWithdraw                                    = "non alphabet mode, ignore withdraw"                                  // Info in ../node/pkg/innerring/processors/frostfs/process_assets.go
+	FrostFSCantTransferNativeGasToReceiver                                  = "can't transfer native gas to receiver"
-	FrostFSCantCreateLockAccount                                            = "can't create lock account"                                           // Error in ../node/pkg/innerring/processors/frostfs/process_assets.go
+	FrostFSNonAlphabetModeIgnoreWithdraw                                    = "non alphabet mode, ignore withdraw"
-	FrostFSCantLockAssetsForWithdraw                                        = "can't lock assets for withdraw"                                      // Error in ../node/pkg/innerring/processors/frostfs/process_assets.go
+	FrostFSCantCreateLockAccount                                            = "can't create lock account"
-	FrostFSNonAlphabetModeIgnoreCheque                                      = "non alphabet mode, ignore cheque"                                    // Info in ../node/pkg/innerring/processors/frostfs/process_assets.go
+	FrostFSCantLockAssetsForWithdraw                                        = "can't lock assets for withdraw"
-	FrostFSCantTransferAssetsToFedContract                                  = "can't transfer assets to fed contract"                               // Error in ../node/pkg/innerring/processors/frostfs/process_assets.go
+	FrostFSNonAlphabetModeIgnoreCheque                                      = "non alphabet mode, ignore cheque"
-	GovernanceNewEvent                                                      = "new event"                                                           // Info in ../node/pkg/innerring/processors/governance/handlers.go
+	FrostFSCantTransferAssetsToFedContract                                  = "can't transfer assets to fed contract"
-	GovernanceGovernanceWorkerPoolDrained                                   = "governance worker pool drained"                                      // Warn in ../node/pkg/innerring/processors/governance/handlers.go
+	GovernanceNewEvent                                                      = "new event"
-	GovernanceNonAlphabetModeIgnoreAlphabetSync                             = "non alphabet mode, ignore alphabet sync"                             // Info in ../node/pkg/innerring/processors/governance/process_update.go
+	GovernanceGovernanceWorkerPoolDrained                                   = "governance worker pool drained"
-	GovernanceCantFetchAlphabetListFromMainNet                              = "can't fetch alphabet list from main net"                             // Error in ../node/pkg/innerring/processors/governance/process_update.go
+	GovernanceNonAlphabetModeIgnoreAlphabetSync                             = "non alphabet mode, ignore alphabet sync"
-	GovernanceCantFetchAlphabetListFromSideChain                            = "can't fetch alphabet list from side chain"                           // Error in ../node/pkg/innerring/processors/governance/process_update.go
+	GovernanceCantFetchAlphabetListFromMainNet                              = "can't fetch alphabet list from main net"
-	GovernanceCantMergeAlphabetListsFromMainNetAndSideChain                 = "can't merge alphabet lists from main net and side chain"             // Error in ../node/pkg/innerring/processors/governance/process_update.go
+	GovernanceCantFetchAlphabetListFromSideChain                            = "can't fetch alphabet list from side chain"
-	GovernanceNoGovernanceUpdateAlphabetListHasNotBeenChanged               = "no governance update, alphabet list has not been changed"            // Info in ../node/pkg/innerring/processors/governance/process_update.go
+	GovernanceCantMergeAlphabetListsFromMainNetAndSideChain                 = "can't merge alphabet lists from main net and side chain"
-	GovernanceAlphabetListHasBeenChangedStartingUpdate                      = "alphabet list has been changed, starting update"                     // Info in ../node/pkg/innerring/processors/governance/process_update.go
+	GovernanceNoGovernanceUpdateAlphabetListHasNotBeenChanged               = "no governance update, alphabet list has not been changed"
-	GovernanceCantVoteForSideChainCommittee                                 = "can't vote for side chain committee"                                 // Error in ../node/pkg/innerring/processors/governance/process_update.go
+	GovernanceAlphabetListHasBeenChangedStartingUpdate                      = "alphabet list has been changed, starting update"
-	GovernanceFinishedAlphabetListUpdate                                    = "finished alphabet list update"                                       // Info in ../node/pkg/innerring/processors/governance/process_update.go
+	GovernanceCantVoteForSideChainCommittee                                 = "can't vote for side chain committee"
-	GovernanceCantFetchInnerRingListFromSideChain                           = "can't fetch inner ring list from side chain"                         // Error in ../node/pkg/innerring/processors/governance/process_update.go
+	GovernanceFinishedAlphabetListUpdate                                    = "finished alphabet list update"
-	GovernanceCantCreateNewInnerRingListWithNewAlphabetKeys                 = "can't create new inner ring list with new alphabet keys"             // Error in ../node/pkg/innerring/processors/governance/process_update.go
+	GovernanceCantFetchInnerRingListFromSideChain                           = "can't fetch inner ring list from side chain"
-	GovernanceUpdateOfTheInnerRingList                                      = "update of the inner ring list"                                       // Info in ../node/pkg/innerring/processors/governance/process_update.go
+	GovernanceCantCreateNewInnerRingListWithNewAlphabetKeys                 = "can't create new inner ring list with new alphabet keys"
-	GovernanceCantUpdateInnerRingListWithNewAlphabetKeys                    = "can't update inner ring list with new alphabet keys"                 // Error in ../node/pkg/innerring/processors/governance/process_update.go
+	GovernanceUpdateOfTheInnerRingList                                      = "update of the inner ring list"
-	GovernanceCantUpdateListOfNotaryNodesInSideChain                        = "can't update list of notary nodes in side chain"                     // Error in ../node/pkg/innerring/processors/governance/process_update.go
+	GovernanceCantUpdateInnerRingListWithNewAlphabetKeys                    = "can't update inner ring list with new alphabet keys"
-	GovernanceCantUpdateListOfAlphabetNodesInFrostfsContract                = "can't update list of alphabet nodes in frostfs contract"             // Error in ../node/pkg/innerring/processors/governance/process_update.go
+	GovernanceCantUpdateListOfNotaryNodesInSideChain                        = "can't update list of notary nodes in side chain"
-	NetmapNetmapWorkerPool                                                  = "netmap worker pool"                                                  // Debug in ../node/pkg/innerring/processors/netmap/processor.go
+	GovernanceCantUpdateListOfAlphabetNodesInFrostfsContract                = "can't update list of alphabet nodes in frostfs contract"
-	NetmapTick                                                              = "tick"                                                                // Info in ../node/pkg/innerring/processors/netmap/handlers.go
+	NetmapNetmapWorkerPool                                                  = "netmap worker pool"
-	NetmapNetmapWorkerPoolDrained                                           = "netmap worker pool drained"                                          // Warn in ../node/pkg/innerring/processors/netmap/handlers.go
+	NetmapTick                                                              = "tick"
-	NetmapNetmapCleanUpRoutineIsDisabled518                                 = "netmap clean up routine is disabled"                                 // Debug in ../node/pkg/innerring/processors/netmap/handlers.go
+	NetmapNetmapWorkerPoolDrained                                           = "netmap worker pool drained"
-	NetmapNonAlphabetModeIgnoreNewNetmapCleanupTick                         = "non alphabet mode, ignore new netmap cleanup tick"                   // Info in ../node/pkg/innerring/processors/netmap/process_cleanup.go
+	NetmapNetmapCleanUpRoutineIsDisabled518                                 = "netmap clean up routine is disabled"
-	NetmapCantDecodePublicKeyOfNetmapNode                                   = "can't decode public key of netmap node"                              // Warn in ../node/pkg/innerring/processors/netmap/process_cleanup.go
+	NetmapNonAlphabetModeIgnoreNewNetmapCleanupTick                         = "non alphabet mode, ignore new netmap cleanup tick"
-	NetmapVoteToRemoveNodeFromNetmap                                        = "vote to remove node from netmap"                                     // Info in ../node/pkg/innerring/processors/netmap/process_cleanup.go
+	NetmapCantDecodePublicKeyOfNetmapNode                                   = "can't decode public key of netmap node"
-	NetmapCantInvokeNetmapUpdateState                                       = "can't invoke netmap.UpdateState"                                     // Error in ../node/pkg/innerring/processors/netmap/process_cleanup.go
+	NetmapVoteToRemoveNodeFromNetmap                                        = "vote to remove node from netmap"
-	NetmapCantIterateOnNetmapCleanerCache                                   = "can't iterate on netmap cleaner cache"                               // Warn in ../node/pkg/innerring/processors/netmap/process_cleanup.go
+	NetmapCantInvokeNetmapUpdateState                                       = "can't invoke netmap.UpdateState"
-	NetmapCantGetEpochDuration                                              = "can't get epoch duration"                                            // Warn in ../node/pkg/innerring/processors/netmap/process_epoch.go
+	NetmapCantIterateOnNetmapCleanerCache                                   = "can't iterate on netmap cleaner cache"
-	NetmapCantGetTransactionHeight                                          = "can't get transaction height"                                        // Warn in ../node/pkg/innerring/processors/netmap/process_epoch.go
+	NetmapCantGetEpochDuration                                              = "can't get epoch duration"
-	NetmapCantResetEpochTimer                                               = "can't reset epoch timer"                                             // Warn in ../node/pkg/innerring/processors/netmap/process_epoch.go
+	NetmapCantGetTransactionHeight                                          = "can't get transaction height"
-	NetmapCantGetNetmapSnapshotToPerformCleanup                             = "can't get netmap snapshot to perform cleanup"                        // Warn in ../node/pkg/innerring/processors/netmap/process_epoch.go
+	NetmapCantResetEpochTimer                                               = "can't reset epoch timer"
-	NetmapCantStartContainerSizeEstimation                                  = "can't start container size estimation"                               // Warn in ../node/pkg/innerring/processors/netmap/process_epoch.go
+	NetmapCantGetNetmapSnapshotToPerformCleanup                             = "can't get netmap snapshot to perform cleanup"
-	NetmapNonAlphabetModeIgnoreNewEpochTick                                 = "non alphabet mode, ignore new epoch tick"                            // Info in ../node/pkg/innerring/processors/netmap/process_epoch.go
+	NetmapCantStartContainerSizeEstimation                                  = "can't start container size estimation"
-	NetmapNextEpoch                                                         = "next epoch"                                                          // Debug in ../node/pkg/innerring/processors/netmap/process_epoch.go
+	NetmapNonAlphabetModeIgnoreNewEpochTick                                 = "non alphabet mode, ignore new epoch tick"
-	NetmapCantInvokeNetmapNewEpoch                                          = "can't invoke netmap.NewEpoch"                                        // Error in ../node/pkg/innerring/processors/netmap/process_epoch.go
+	NetmapNextEpoch                                                         = "next epoch"
-	NetmapNonAlphabetModeIgnoreNewPeerNotification                          = "non alphabet mode, ignore new peer notification"                     // Info in ../node/pkg/innerring/processors/netmap/process_peers.go
+	NetmapCantInvokeNetmapNewEpoch                                          = "can't invoke netmap.NewEpoch"
-	NetmapNonhaltNotaryTransaction                                          = "non-halt notary transaction"                                         // Warn in ../node/pkg/innerring/processors/netmap/process_peers.go
+	NetmapNonAlphabetModeIgnoreNewPeerNotification                          = "non alphabet mode, ignore new peer notification"
-	NetmapCantParseNetworkMapCandidate                                      = "can't parse network map candidate"                                   // Warn in ../node/pkg/innerring/processors/netmap/process_peers.go
+	NetmapNonhaltNotaryTransaction                                          = "non-halt notary transaction"
-	NetmapCouldNotVerifyAndUpdateInformationAboutNetworkMapCandidate        = "could not verify and update information about network map candidate" // Warn in ../node/pkg/innerring/processors/netmap/process_peers.go
+	NetmapCantParseNetworkMapCandidate                                      = "can't parse network map candidate"
-	NetmapApprovingNetworkMapCandidate                                      = "approving network map candidate"                                     // Info in ../node/pkg/innerring/processors/netmap/process_peers.go
+	NetmapCouldNotVerifyAndUpdateInformationAboutNetworkMapCandidate        = "could not verify and update information about network map candidate"
-	NetmapCantInvokeNetmapAddPeer                                           = "can't invoke netmap.AddPeer"                                         // Error in ../node/pkg/innerring/processors/netmap/process_peers.go
+	NetmapApprovingNetworkMapCandidate                                      = "approving network map candidate"
-	NetmapNonAlphabetModeIgnoreUpdatePeerNotification                       = "non alphabet mode, ignore update peer notification"                  // Info in ../node/pkg/innerring/processors/netmap/process_peers.go
+	NetmapCantInvokeNetmapAddPeer                                           = "can't invoke netmap.AddPeer"
-	NetmapPreventSwitchingNodeToMaintenanceState                            = "prevent switching node to maintenance state"                         // Info in ../node/pkg/innerring/processors/netmap/process_peers.go
+	NetmapNonAlphabetModeIgnoreUpdatePeerNotification                       = "non alphabet mode, ignore update peer notification"
-	NetmapCantInvokeNetmapUpdatePeer                                        = "can't invoke netmap.UpdatePeer"                                      // Error in ../node/pkg/innerring/processors/netmap/process_peers.go
+	NetmapPreventSwitchingNodeToMaintenanceState                            = "prevent switching node to maintenance state"
-	FrostFSIRInternalError                                                  = "internal error"                                                      // Info in ../node/cmd/frostfs-ir/main.go
+	NetmapCantInvokeNetmapUpdatePeer                                        = "can't invoke netmap.UpdatePeer"
-	FrostFSIRCouldNotShutdownHTTPServer                                     = "could not shutdown HTTP server"                                      // Debug in ../node/cmd/frostfs-ir/main.go
+	FrostFSIRInternalError                                                  = "internal error"
-	FrostFSIRApplicationStopped                                             = "application stopped"                                                 // Info in ../node/cmd/frostfs-ir/main.go
+	FrostFSIRCouldNotShutdownHTTPServer                                     = "could not shutdown HTTP server"
-	FrostFSIRCouldntCreateRPCClientForEndpoint                              = "could not create RPC client for endpoint"                            // Debug in ../node/pkg/morph/client/constructor.go
+	FrostFSIRApplicationStopped                                             = "application stopped"
-	FrostFSIRCreatedRPCClientForEndpoint                                    = "created RPC client for endpoint"                                     // Info in ../node/pkg/morph/client/constructor.go
+	FrostFSIRCouldntCreateRPCClientForEndpoint                              = "could not create RPC client for endpoint"
-	FrostFSIRReloadExtraWallets                                             = "reload extra wallets"                                                // Info in ../node/cmd/frostfs-ir/config.go
+	FrostFSIRCreatedRPCClientForEndpoint                                    = "created RPC client for endpoint"
-	FrostFSNodeCouldNotReadCertificateFromFile                              = "could not read certificate from file"                                // Error in ../node/cmd/frostfs-node/grpc.go
+	FrostFSIRReloadExtraWallets                                             = "reload extra wallets"
-	FrostFSNodeCantListenGRPCEndpoint                                       = "can't listen gRPC endpoint"                                          // Error in ../node/cmd/frostfs-node/grpc.go
+	FrostFSNodeCouldNotReadCertificateFromFile                              = "could not read certificate from file"
-	FrostFSNodeStopListeningGRPCEndpoint                                    = "stop listening gRPC endpoint"                                        // Info in ../node/cmd/frostfs-node/grpc.go
+	FrostFSNodeCantListenGRPCEndpoint                                       = "can't listen gRPC endpoint"
-	FrostFSNodeStartListeningGRPCEndpoint                                   = "start listening gRPC endpoint"                                       // Info in ../node/cmd/frostfs-node/grpc.go
+	FrostFSNodeStopListeningGRPCEndpoint                                    = "stop listening gRPC endpoint"
-	FrostFSNodeStoppingGRPCServer                                           = "stopping gRPC server..."                                             // Info in ../node/cmd/frostfs-node/grpc.go
+	FrostFSNodeStartListeningGRPCEndpoint                                   = "start listening gRPC endpoint"
-	FrostFSNodeGRPCCannotShutdownGracefullyForcingStop                      = "gRPC cannot shutdown gracefully, forcing stop"                       // Info in ../node/cmd/frostfs-node/grpc.go
+	FrostFSNodeStoppingGRPCServer                                           = "stopping gRPC server..."
-	FrostFSNodeGRPCServerStoppedSuccessfully                                = "gRPC server stopped successfully"                                    // Info in ../node/cmd/frostfs-node/grpc.go
+	FrostFSNodeGRPCCannotShutdownGracefullyForcingStop                      = "gRPC cannot shutdown gracefully, forcing stop"
-	FrostFSNodeWaitingForAllProcessesToStop                                 = "waiting for all processes to stop"                                   // Debug in ../node/cmd/frostfs-node/main.go
+	FrostFSNodeGRPCServerStoppedSuccessfully                                = "gRPC server stopped successfully"
-	FrostFSNodeStartedLocalNodesMaintenance                                 = "started local node's maintenance"                                    // Info in ../node/cmd/frostfs-node/config.go
+	FrostFSNodeWaitingForAllProcessesToStop                                 = "waiting for all processes to stop"
-	FrostFSNodeStoppedLocalNodesMaintenance                                 = "stopped local node's maintenance"                                    // Info in ../node/cmd/frostfs-node/config.go
+	FrostFSNodeStartedLocalNodesMaintenance                                 = "started local node's maintenance"
-	FrostFSNodeFailedToAttachShardToEngine                                  = "failed to attach shard to engine"                                    // Error in ../node/cmd/frostfs-node/config.go
+	FrostFSNodeStoppedLocalNodesMaintenance                                 = "stopped local node's maintenance"
-	FrostFSNodeShardAttachedToEngine                                        = "shard attached to engine"                                            // Info in ../node/cmd/frostfs-node/config.go
+	FrostFSNodeFailedToAttachShardToEngine                                  = "failed to attach shard to engine"
-	FrostFSNodeClosingComponentsOfTheStorageEngine                          = "closing components of the storage engine..."                         // Info in ../node/cmd/frostfs-node/config.go
+	FrostFSNodeShardAttachedToEngine                                        = "shard attached to engine"
-	FrostFSNodeStorageEngineClosingFailure                                  = "storage engine closing failure"                                      // Info in ../node/cmd/frostfs-node/config.go
+	FrostFSNodeClosingComponentsOfTheStorageEngine                          = "closing components of the storage engine..."
-	FrostFSNodeAllComponentsOfTheStorageEngineClosedSuccessfully            = "all components of the storage engine closed successfully"            // Info in ../node/cmd/frostfs-node/config.go
+	FrostFSNodeStorageEngineClosingFailure                                  = "storage engine closing failure"
-	FrostFSNodeBootstrappingWithTheMaintenanceState                         = "bootstrapping with the maintenance state"                            // Info in ../node/cmd/frostfs-node/config.go
+	FrostFSNodeAllComponentsOfTheStorageEngineClosedSuccessfully            = "all components of the storage engine closed successfully"
-	FrostFSNodeBootstrappingWithOnlineState                                 = "bootstrapping with online state"                                     // Info in ../node/cmd/frostfs-node/config.go
+	FrostFSNodeBootstrappingWithTheMaintenanceState                         = "bootstrapping with the maintenance state"
-	FrostFSNodeTerminationSignalHasBeenReceivedStopping                     = "termination signal has been received, stopping..."                   // Info in ../node/cmd/frostfs-node/config.go
+	FrostFSNodeBootstrappingWithOnlineState                                 = "bootstrapping with online state"
-	FrostFSNodeTerminationSignalProcessingIsComplete                        = "termination signal processing is complete"                           // Info in ../node/cmd/frostfs-node/config.go
+	FrostFSNodeTerminationSignalHasBeenReceivedStopping                     = "termination signal has been received, stopping..."
-	FrostFSNodeInternalApplicationError                                     = "internal application error"                                          // Warn in ../node/cmd/frostfs-node/config.go
+	FrostFSNodeTerminationSignalProcessingIsComplete                        = "termination signal processing is complete"
-	FrostFSNodeInternalErrorProcessingIsComplete                            = "internal error processing is complete"                               // Info in ../node/cmd/frostfs-node/config.go
+	FrostFSNodeInternalApplicationError                                     = "internal application error"
-	FrostFSNodeSIGHUPHasBeenReceivedRereadingConfiguration                  = "SIGHUP has been received, rereading configuration..."                // Info in ../node/cmd/frostfs-node/config.go
+	FrostFSNodeInternalErrorProcessingIsComplete                            = "internal error processing is complete"
-	FrostFSNodeConfigurationReading                                         = "configuration reading"                                               // Error in ../node/cmd/frostfs-node/config.go
+	FrostFSNodeSIGHUPHasBeenReceivedRereadingConfiguration                  = "SIGHUP has been received, rereading configuration..."
-	FrostFSNodeLoggerConfigurationPreparation                               = "logger configuration preparation"                                    // Error in ../node/cmd/frostfs-node/config.go
+	FrostFSNodeConfigurationReading                                         = "configuration reading"
-	FrostFSNodeTracingConfigationUpdated                                    = "tracing configation updated"                                         // Info in ../node/cmd/frostfs-node/config.go
+	FrostFSNodeLoggerConfigurationPreparation                               = "logger configuration preparation"
-	FrostFSNodeStorageEngineConfigurationUpdate                             = "storage engine configuration update"                                 // Error in ../node/cmd/frostfs-node/config.go
+	FrostFSNodeTracingConfigationUpdated                                    = "tracing configation updated"
-	FrostFSNodeUpdatedConfigurationApplying                                 = "updated configuration applying"                                      // Error in ../node/cmd/frostfs-node/config.go
+	FrostFSNodeStorageEngineConfigurationUpdate                             = "storage engine configuration update"
-	FrostFSNodeConfigurationHasBeenReloadedSuccessfully                     = "configuration has been reloaded successfully"                        // Info in ../node/cmd/frostfs-node/config.go
+	FrostFSNodeUpdatedConfigurationApplying                                 = "updated configuration applying"
-	FrostFSNodeReadNewlyCreatedContainerAfterTheNotification                = "read newly created container after the notification"                 // Error in ../node/cmd/frostfs-node/container.go
+	FrostFSNodeConfigurationHasBeenReloadedSuccessfully                     = "configuration has been reloaded successfully"
-	FrostFSNodeContainerCreationEventsReceipt                               = "container creation event's receipt"                                  // Debug in ../node/cmd/frostfs-node/container.go
+	FrostFSNodeReadNewlyCreatedContainerAfterTheNotification                = "read newly created container after the notification"
-	FrostFSNodeContainerRemovalEventsReceipt                                = "container removal event's receipt"                                   // Debug in ../node/cmd/frostfs-node/container.go
+	FrostFSNodeContainerCreationEventsReceipt                               = "container creation event's receipt"
-	FrostFSNodeSaveUsedSpaceAnnouncementInContract                          = "save used space announcement in contract"                            // Debug in ../node/cmd/frostfs-node/container.go
+	FrostFSNodeContainerRemovalEventsReceipt                                = "container removal event's receipt"
-	FrostFSNodeFailedToCalculateContainerSizeInStorageEngine                = "failed to calculate container size in storage engine"                // Debug in ../node/cmd/frostfs-node/container.go
+	FrostFSNodeSaveUsedSpaceAnnouncementInContract                          = "save used space announcement in contract"
-	FrostFSNodeContainerSizeInStorageEngineCalculatedSuccessfully           = "container size in storage engine calculated successfully"            // Debug in ../node/cmd/frostfs-node/container.go
+	FrostFSNodeFailedToCalculateContainerSizeInStorageEngine                = "failed to calculate container size in storage engine"
-	FrostFSNodeNotificatorCouldNotListContainers                            = "notificator: could not list containers"                              // Error in ../node/cmd/frostfs-node/notificator.go
+	FrostFSNodeContainerSizeInStorageEngineCalculatedSuccessfully           = "container size in storage engine calculated successfully"
-	FrostFSNodeNotificatorCouldNotSelectObjectsFromContainer                = "notificator: could not select objects from container"                // Error in ../node/cmd/frostfs-node/notificator.go
+	FrostFSNodeNotificatorCouldNotListContainers                            = "notificator: could not list containers"
-	FrostFSNodeNotificatorCouldNotProcessObject                             = "notificator: could not process object"                               // Error in ../node/cmd/frostfs-node/notificator.go
+	FrostFSNodeNotificatorCouldNotSelectObjectsFromContainer                = "notificator: could not select objects from container"
-	FrostFSNodeNotificatorFinishedProcessingObjectNotifications             = "notificator: finished processing object notifications"               // Debug in ../node/cmd/frostfs-node/notificator.go
+	FrostFSNodeNotificatorCouldNotProcessObject                             = "notificator: could not process object"
-	FrostFSNodeCouldNotWriteObjectNotification                              = "could not write object notification"                                 // Warn in ../node/cmd/frostfs-node/notificator.go
+	FrostFSNodeNotificatorFinishedProcessingObjectNotifications             = "notificator: finished processing object notifications"
-	FrostFSNodeCouldNotGetMaxObjectSizeValue                                = "could not get max object size value"                                 // Error in ../node/cmd/frostfs-node/object.go
+	FrostFSNodeCouldNotWriteObjectNotification                              = "could not write object notification"
-	FrostFSNodeCouldNotInhumeMarkRedundantCopyAsGarbage                     = "could not inhume mark redundant copy as garbage"                     // Warn in ../node/cmd/frostfs-node/object.go
+	FrostFSNodeCouldNotGetMaxObjectSizeValue                                = "could not get max object size value"
-	FrostFSNodeFailedInitTracing                                            = "failed init tracing"                                                 // Error in ../node/cmd/frostfs-node/tracing.go
+	FrostFSNodeCouldNotInhumeMarkRedundantCopyAsGarbage                     = "could not inhume mark redundant copy as garbage"
-	FrostFSNodeFailedShutdownTracing                                        = "failed shutdown tracing"                                             // Error in ../node/cmd/frostfs-node/tracing.go
+	FrostFSNodeFailedInitTracing                                            = "failed init tracing"
-	FrostFSNodeFailedToCreateNeoRPCClient                                   = "failed to create neo RPC client"                                     // Info in ../node/cmd/frostfs-node/morph.go
+	FrostFSNodeFailedShutdownTracing                                        = "failed shutdown tracing"
-	FrostFSNodeClosingMorphComponents                                       = "closing morph components..."                                         // Info in ../node/cmd/frostfs-node/morph.go
+	FrostFSNodeFailedToCreateNeoRPCClient                                   = "failed to create neo RPC client"
-	FrostFSNodeFailedToSetGroupSignerScopeContinueWithGlobal                = "failed to set group signer scope, continue with Global"              // Info in ../node/cmd/frostfs-node/morph.go
+	FrostFSNodeClosingMorphComponents                                       = "closing morph components..."
-	FrostFSNodeNotarySupport                                                = "notary support"                                                      // Info in ../node/cmd/frostfs-node/morph.go
+	FrostFSNodeFailedToSetGroupSignerScopeContinueWithGlobal                = "failed to set group signer scope, continue with Global"
-	FrostFSNodeMorphcacheTTLFetchedFromNetwork                              = "morph.cache_ttl fetched from network"                                // Debug in ../node/cmd/frostfs-node/morph.go
+	FrostFSNodeNotarySupport                                                = "notary support"
-	FrostFSNodeNotaryDepositHasAlreadyBeenMade                              = "notary deposit has already been made"                                // Info in ../node/cmd/frostfs-node/morph.go
+	FrostFSNodeMorphcacheTTLFetchedFromNetwork                              = "morph.cache_ttl fetched from network"
-	FrostFSNodeCantGetLastProcessedSideChainBlockNumber                     = "can't get last processed side chain block number"                    // Warn in ../node/cmd/frostfs-node/morph.go
+	FrostFSNodeNotaryDepositHasAlreadyBeenMade                              = "notary deposit has already been made"
-	FrostFSNodeNewEpochEventFromSidechain                                   = "new epoch event from sidechain"                                      // Info in ../node/cmd/frostfs-node/morph.go
+	FrostFSNodeCantGetLastProcessedSideChainBlockNumber                     = "can't get last processed side chain block number"
-	FrostFSNodeNewBlock                                                     = "new block"                                                           // Debug in ../node/cmd/frostfs-node/morph.go
+	FrostFSNodeNewEpochEventFromSidechain                                   = "new epoch event from sidechain"
-	FrostFSNodeCantUpdatePersistentState                                    = "can't update persistent state"                                       // Warn in ../node/cmd/frostfs-node/morph.go
+	FrostFSNodeNewBlock                                                     = "new block"
-	FrostFSNodeCantSendRebootstrapTx                                        = "can't send re-bootstrap tx"                                          // Warn in ../node/cmd/frostfs-node/netmap.go
+	FrostFSNodeCantUpdatePersistentState                                    = "can't update persistent state"
-	FrostFSNodeCouldNotUpdateNodeStateOnNewEpoch                            = "could not update node state on new epoch"                            // Error in ../node/cmd/frostfs-node/netmap.go
+	FrostFSNodeCantSendRebootstrapTx                                        = "can't send re-bootstrap tx"
-	FrostFSNodeCouldNotMakeNotaryDeposit                                    = "could not make notary deposit"                                       // Error in ../node/cmd/frostfs-node/netmap.go
+	FrostFSNodeCouldNotUpdateNodeStateOnNewEpoch                            = "could not update node state on new epoch"
-	FrostFSNodeInitialNetworkState                                          = "initial network state"                                               // Info in ../node/cmd/frostfs-node/netmap.go
+	FrostFSNodeCouldNotMakeNotaryDeposit                                    = "could not make notary deposit"
-	FrostFSNodeTreeServiceIsNotEnabledSkipInitialization                    = "tree service is not enabled, skip initialization"                    // Info in ../node/cmd/frostfs-node/tree.go
+	FrostFSNodeInitialNetworkState                                          = "initial network state"
-	FrostFSNodeCouldNotSynchronizeTreeService                               = "could not synchronize Tree Service"                                  // Error in ../node/cmd/frostfs-node/tree.go
+	FrostFSNodeTreeServiceIsNotEnabledSkipInitialization                    = "tree service is not enabled, skip initialization"
-	FrostFSNodeRemovingAllTreesForContainer                                 = "removing all trees for container"                                    // Debug in ../node/cmd/frostfs-node/tree.go
+	FrostFSNodeCouldNotSynchronizeTreeService                               = "could not synchronize Tree Service"
-	FrostFSNodeContainerRemovalEventReceivedButTreesWerentRemoved           = "container removal event received, but trees weren't removed"         // Error in ../node/cmd/frostfs-node/tree.go
+	FrostFSNodeRemovingAllTreesForContainer                                 = "removing all trees for container"
-	FrostFSNodeCantListenGRPCEndpointControl                                = "can't listen gRPC endpoint (control)"                                // Error in ../node/cmd/frostfs-node/control.go
+	FrostFSNodeContainerRemovalEventReceivedButTreesWerentRemoved           = "container removal event received, but trees weren't removed"
+	FrostFSNodeCantListenGRPCEndpointControl                                = "can't listen gRPC endpoint (control)"
 	FrostFSNodePolicerIsDisabled                                            = "policer is disabled"
 	CommonApplicationStarted                                                = "application started"
 	ShardGCCollectingExpiredObjectsStarted                                  = "collecting expired objects started"
@@ -509,9 +504,10 @@ const (
 	TombstoneExpirationParseFailure                                         = "tombstone getter: could not parse tombstone expiration epoch"
 	FrostFSNodeCantUpdateObjectStorageID                                    = "can't update object storage ID"
 	FrostFSNodeCantFlushObjectToBlobstor                                    = "can't flush an object to blobstor"
-	FrostFSNodeCantDecodeObjectAddressFromDB                                = "can't decode object address from the DB" // Error in ../node/cmd/frostfs-node/morph.go
+	FrostFSNodeCantDecodeObjectAddressFromDB                                = "can't decode object address from the DB"
-	FrostFSNodeCantUnmarshalObjectFromDB                                    = "can't unmarshal an object from the DB"   // Error in ../node/cmd/frostfs-node/morph.go
+	FrostFSNodeCantUnmarshalObjectFromDB                                    = "can't unmarshal an object from the DB"
 	RuntimeSoftMemoryLimitUpdated                                           = "soft runtime memory limit value updated"
 	RuntimeSoftMemoryDefinedWithGOMEMLIMIT                                  = "soft runtime memory defined with GOMEMLIMIT environment variable, config value skipped"
 	FailedToCountWritecacheItems                                            = "failed to count writecache items"
+	AttemtToCloseAlreadyClosedBlobovnicza                                   = "attempt to close an already closed blobovnicza"
 )

pkg/core/container/storage.go

@@ -20,6 +20,15 @@ type Container struct {
 	Session *session.Container
 }
 
+// DelInfo contains info about removed container.
+type DelInfo struct {
+	// Container owner.
+	Owner []byte
+
+	// Epoch indicates when the container was removed.
+	Epoch int
+}
+
 // Source is an interface that wraps
 // basic container receiving method.
 type Source interface {
@@ -32,6 +41,8 @@ type Source interface {
 	// Implementations must not retain the container pointer and modify
 	// the container through it.
 	Get(cid.ID) (*Container, error)
+
+	DeletionInfo(cid.ID) (*DelInfo, error)
 }
 
 // EACL groups information about the FrostFS container's extended ACL stored in

pkg/core/container/util.go

@@ -0,0 +1,22 @@
+package container
+
+import (
+	"errors"
+
+	apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
+	cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
+)
+
+// WasRemoved checks whether the container ever existed or
+// it just has not been created yet at the current epoch.
+func WasRemoved(s Source, cid cid.ID) (bool, error) {
+	_, err := s.DeletionInfo(cid)
+	if err == nil {
+		return true, nil
+	}
+	var errContainerNotFound *apistatus.ContainerNotFound
+	if errors.As(err, &errContainerNotFound) {
+		return false, nil
+	}
+	return false, err
+}

pkg/core/object/fmt.go

@@ -3,13 +3,17 @@ package object
 import (
 	"context"
 	"crypto/ecdsa"
+	"crypto/sha256"
 	"errors"
 	"fmt"
 	"strconv"
 
 	objectV2 "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/object"
 	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/refs"
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/core/container"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/core/netmap"
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
+	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/acl"
 	cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
 	frostfsecdsa "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/crypto/ecdsa"
 	objectSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
@@ -20,14 +24,21 @@ import (
 // FormatValidator represents an object format validator.
 type FormatValidator struct {
 	*cfg
+
+	senderClassifier SenderClassifier
 }
 
 // FormatValidatorOption represents a FormatValidator constructor option.
 type FormatValidatorOption func(*cfg)
 
 type cfg struct {
-	netState netmap.State
+	netState          netmap.State
-	e        LockSource
+	e                 LockSource
+	ir                InnerRing
+	netmap            netmap.Source
+	containers        container.Source
+	log               *logger.Logger
+	verifyTokenIssuer bool
 }
 
 // DeleteHandler is an interface of delete queue processor.
@@ -79,7 +90,8 @@ func NewFormatValidator(opts ...FormatValidatorOption) *FormatValidator {
 	}
 
 	return &FormatValidator{
-		cfg: cfg,
+		cfg:              cfg,
+		senderClassifier: NewSenderClassifier(cfg.ir, cfg.netmap, cfg.log),
 	}
 }
 
@@ -153,14 +165,52 @@ func (v *FormatValidator) validateSignatureKey(obj *objectSDK.Object) error {
 	}
 
 	token := obj.SessionToken()
+	ownerID := *obj.OwnerID()
 
 	if token == nil || !token.AssertAuthKey(&key) {
-		return v.checkOwnerKey(*obj.OwnerID(), key)
+		return v.checkOwnerKey(ownerID, key)
+	}
+
+	if v.verifyTokenIssuer {
+		signerIsIROrContainerNode, err := v.isIROrContainerNode(obj, binKey)
+		if err != nil {
+			return err
+		}
+
+		if signerIsIROrContainerNode {
+			return nil
+		}
+
+		if !token.Issuer().Equals(ownerID) {
+			return fmt.Errorf("(%T) different token issuer and object owner identifiers %s/%s", v, token.Issuer(), ownerID)
+		}
+		return nil
 	}
 
 	return nil
 }
 
+func (v *FormatValidator) isIROrContainerNode(obj *objectSDK.Object, signerKey []byte) (bool, error) {
+	cnrID, containerIDSet := obj.ContainerID()
+	if !containerIDSet {
+		return false, errNilCID
+	}
+
+	cnrIDBin := make([]byte, sha256.Size)
+	cnrID.Encode(cnrIDBin)
+
+	cnr, err := v.containers.Get(cnrID)
+	if err != nil {
+		return false, fmt.Errorf("failed to get container (id=%s): %w", cnrID.EncodeToString(), err)
+	}
+
+	res, err := v.senderClassifier.IsInnerRingOrContainerNode(signerKey, cnrID, cnr.Value)
+	if err != nil {
+		return false, err
+	}
+	return res.Role == acl.RoleContainer || res.Role == acl.RoleInnerRing, nil
+}
+
 func (v *FormatValidator) checkOwnerKey(id user.ID, key frostfsecdsa.PublicKey) error {
 	var id2 user.ID
 	user.IDFromKey(&id2, (ecdsa.PublicKey)(key))
@@ -382,3 +432,38 @@ func WithLockSource(e LockSource) FormatValidatorOption {
 		c.e = e
 	}
 }
+
+// WithInnerRing return option to set Inner Ring source.
+func WithInnerRing(ir InnerRing) FormatValidatorOption {
+	return func(c *cfg) {
+		c.ir = ir
+	}
+}
+
+// WithNetmapSource return option to set Netmap source.
+func WithNetmapSource(ns netmap.Source) FormatValidatorOption {
+	return func(c *cfg) {
+		c.netmap = ns
+	}
+}
+
+// WithContainersSource return option to set Containers source.
+func WithContainersSource(cs container.Source) FormatValidatorOption {
+	return func(c *cfg) {
+		c.containers = cs
+	}
+}
+
+// WithVerifySessionTokenIssuer return option to set verify session token issuer value.
+func WithVerifySessionTokenIssuer(verifySessionTokenIssuer bool) FormatValidatorOption {
+	return func(c *cfg) {
+		c.verifyTokenIssuer = verifySessionTokenIssuer
+	}
+}
+
+// WithLogger return option to set logger.
+func WithLogger(l *logger.Logger) FormatValidatorOption {
+	return func(c *cfg) {
+		c.log = l
+	}
+}

pkg/core/object/fmt_test.go

@@ -3,18 +3,27 @@ package object
 import (
 	"context"
 	"crypto/ecdsa"
+	"fmt"
 	"strconv"
 	"testing"
 
 	objectV2 "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/object"
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/core/container"
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
+	containerSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container"
+	cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
 	cidtest "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id/test"
+	frostfsecdsa "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/crypto/ecdsa"
+	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/netmap"
 	objectSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
 	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
 	oidtest "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id/test"
 	sessiontest "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/session/test"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/user"
+	"github.com/google/uuid"
 	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
 	"github.com/stretchr/testify/require"
+	"go.uber.org/zap/zaptest"
 )
 
 func blankValidObject(key *ecdsa.PrivateKey) *objectSDK.Object {
@@ -56,6 +65,7 @@ func TestFormatValidator_Validate(t *testing.T) {
 			epoch: curEpoch,
 		}),
 		WithLockSource(ls),
+		WithLogger(&logger.Logger{Logger: zaptest.NewLogger(t)}),
 	)
 
 	ownerKey, err := keys.NewPrivateKey()
@@ -254,3 +264,356 @@ func TestFormatValidator_Validate(t *testing.T) {
 		})
 	})
 }
+
+func TestFormatValidator_ValidateTokenIssuer(t *testing.T) {
+	const curEpoch = 13
+
+	ls := testLockSource{
+		m: make(map[oid.Address]bool),
+	}
+
+	signer, err := keys.NewPrivateKey()
+	require.NoError(t, err)
+
+	var owner user.ID
+	ownerPrivKey, err := keys.NewPrivateKey()
+	require.NoError(t, err)
+	user.IDFromKey(&owner, ownerPrivKey.PrivateKey.PublicKey)
+
+	t.Run("different issuer and owner, verify issuer disabled", func(t *testing.T) {
+		t.Parallel()
+		v := NewFormatValidator(
+			WithNetState(testNetState{
+				epoch: curEpoch,
+			}),
+			WithLockSource(ls),
+			WithVerifySessionTokenIssuer(false),
+			WithLogger(&logger.Logger{Logger: zaptest.NewLogger(t)}),
+		)
+
+		tok := sessiontest.Object()
+		fsPubKey := frostfsecdsa.PublicKey(*signer.PublicKey())
+		tok.SetID(uuid.New())
+		tok.SetAuthKey(&fsPubKey)
+		tok.SetExp(100500)
+		tok.SetIat(1)
+		tok.SetNbf(1)
+		require.NoError(t, tok.Sign(signer.PrivateKey))
+
+		obj := objectSDK.New()
+		obj.SetContainerID(cidtest.ID())
+		obj.SetSessionToken(tok)
+		obj.SetOwnerID(&owner)
+		require.NoError(t, objectSDK.SetIDWithSignature(signer.PrivateKey, obj))
+
+		require.NoError(t, v.Validate(context.Background(), obj, false))
+	})
+
+	t.Run("different issuer and owner, issuer is IR node, verify issuer enabled", func(t *testing.T) {
+		t.Parallel()
+
+		cnrID := cidtest.ID()
+		cont := containerSDK.Container{}
+		cont.Init()
+		pp := netmap.PlacementPolicy{}
+		require.NoError(t, pp.DecodeString("REP 1"))
+		cont.SetPlacementPolicy(pp)
+
+		v := NewFormatValidator(
+			WithNetState(testNetState{
+				epoch: curEpoch,
+			}),
+			WithLockSource(ls),
+			WithVerifySessionTokenIssuer(true),
+			WithInnerRing(&testIRSource{
+				irNodes: [][]byte{signer.PublicKey().Bytes()},
+			}),
+			WithContainersSource(
+				&testContainerSource{
+					containers: map[cid.ID]*container.Container{
+						cnrID: {
+							Value: cont,
+						},
+					},
+				},
+			),
+			WithLogger(&logger.Logger{Logger: zaptest.NewLogger(t)}),
+		)
+
+		tok := sessiontest.Object()
+		fsPubKey := frostfsecdsa.PublicKey(*signer.PublicKey())
+		tok.SetID(uuid.New())
+		tok.SetAuthKey(&fsPubKey)
+		tok.SetExp(100500)
+		tok.SetIat(1)
+		tok.SetNbf(1)
+		require.NoError(t, tok.Sign(signer.PrivateKey))
+
+		obj := objectSDK.New()
+		obj.SetContainerID(cnrID)
+		obj.SetSessionToken(tok)
+		obj.SetOwnerID(&owner)
+		require.NoError(t, objectSDK.SetIDWithSignature(signer.PrivateKey, obj))
+
+		require.NoError(t, v.Validate(context.Background(), obj, false))
+	})
+
+	t.Run("different issuer and owner, issuer is container node in current epoch, verify issuer enabled", func(t *testing.T) {
+		t.Parallel()
+
+		tok := sessiontest.Object()
+		fsPubKey := frostfsecdsa.PublicKey(*signer.PublicKey())
+		tok.SetID(uuid.New())
+		tok.SetAuthKey(&fsPubKey)
+		tok.SetExp(100500)
+		tok.SetIat(1)
+		tok.SetNbf(1)
+		require.NoError(t, tok.Sign(signer.PrivateKey))
+
+		cnrID := cidtest.ID()
+		cont := containerSDK.Container{}
+		cont.Init()
+		pp := netmap.PlacementPolicy{}
+		require.NoError(t, pp.DecodeString("REP 1"))
+		cont.SetPlacementPolicy(pp)
+
+		var node netmap.NodeInfo
+		node.SetPublicKey(signer.PublicKey().Bytes())
+		currentEpochNM := &netmap.NetMap{}
+		currentEpochNM.SetEpoch(curEpoch)
+		currentEpochNM.SetNodes([]netmap.NodeInfo{node})
+
+		obj := objectSDK.New()
+		obj.SetContainerID(cnrID)
+		obj.SetSessionToken(tok)
+		obj.SetOwnerID(&owner)
+		require.NoError(t, objectSDK.SetIDWithSignature(signer.PrivateKey, obj))
+
+		v := NewFormatValidator(
+			WithNetState(testNetState{
+				epoch: curEpoch,
+			}),
+			WithLockSource(ls),
+			WithVerifySessionTokenIssuer(true),
+			WithInnerRing(&testIRSource{
+				irNodes: [][]byte{},
+			}),
+			WithContainersSource(
+				&testContainerSource{
+					containers: map[cid.ID]*container.Container{
+						cnrID: {
+							Value: cont,
+						},
+					},
+				},
+			),
+			WithNetmapSource(
+				&testNetmapSource{
+					netmaps: map[uint64]*netmap.NetMap{
+						curEpoch: currentEpochNM,
+					},
+					currentEpoch: curEpoch,
+				},
+			),
+			WithLogger(&logger.Logger{Logger: zaptest.NewLogger(t)}),
+		)
+
+		require.NoError(t, v.Validate(context.Background(), obj, false))
+	})
+
+	t.Run("different issuer and owner, issuer is container node in previous epoch, verify issuer enabled", func(t *testing.T) {
+		t.Parallel()
+
+		tok := sessiontest.Object()
+		fsPubKey := frostfsecdsa.PublicKey(*signer.PublicKey())
+		tok.SetID(uuid.New())
+		tok.SetAuthKey(&fsPubKey)
+		tok.SetExp(100500)
+		tok.SetIat(1)
+		tok.SetNbf(1)
+		require.NoError(t, tok.Sign(signer.PrivateKey))
+
+		cnrID := cidtest.ID()
+		cont := containerSDK.Container{}
+		cont.Init()
+		pp := netmap.PlacementPolicy{}
+		require.NoError(t, pp.DecodeString("REP 1"))
+		cont.SetPlacementPolicy(pp)
+
+		var issuerNode netmap.NodeInfo
+		issuerNode.SetPublicKey(signer.PublicKey().Bytes())
+
+		var nonIssuerNode netmap.NodeInfo
+		nonIssuerKey, err := keys.NewPrivateKey()
+		require.NoError(t, err)
+		nonIssuerNode.SetPublicKey(nonIssuerKey.PublicKey().Bytes())
+
+		currentEpochNM := &netmap.NetMap{}
+		currentEpochNM.SetEpoch(curEpoch)
+		currentEpochNM.SetNodes([]netmap.NodeInfo{nonIssuerNode})
+
+		previousEpochNM := &netmap.NetMap{}
+		previousEpochNM.SetEpoch(curEpoch - 1)
+		previousEpochNM.SetNodes([]netmap.NodeInfo{issuerNode})
+
+		obj := objectSDK.New()
+		obj.SetContainerID(cnrID)
+		obj.SetSessionToken(tok)
+		obj.SetOwnerID(&owner)
+		require.NoError(t, objectSDK.SetIDWithSignature(signer.PrivateKey, obj))
+
+		v := NewFormatValidator(
+			WithNetState(testNetState{
+				epoch: curEpoch,
+			}),
+			WithLockSource(ls),
+			WithVerifySessionTokenIssuer(true),
+			WithInnerRing(&testIRSource{
+				irNodes: [][]byte{},
+			}),
+			WithContainersSource(
+				&testContainerSource{
+					containers: map[cid.ID]*container.Container{
+						cnrID: {
+							Value: cont,
+						},
+					},
+				},
+			),
+			WithNetmapSource(
+				&testNetmapSource{
+					netmaps: map[uint64]*netmap.NetMap{
+						curEpoch:     currentEpochNM,
+						curEpoch - 1: previousEpochNM,
+					},
+					currentEpoch: curEpoch,
+				},
+			),
+			WithLogger(&logger.Logger{Logger: zaptest.NewLogger(t)}),
+		)
+
+		require.NoError(t, v.Validate(context.Background(), obj, false))
+	})
+
+	t.Run("different issuer and owner, issuer is unknown, verify issuer enabled", func(t *testing.T) {
+		t.Parallel()
+
+		tok := sessiontest.Object()
+		fsPubKey := frostfsecdsa.PublicKey(*signer.PublicKey())
+		tok.SetID(uuid.New())
+		tok.SetAuthKey(&fsPubKey)
+		tok.SetExp(100500)
+		tok.SetIat(1)
+		tok.SetNbf(1)
+		require.NoError(t, tok.Sign(signer.PrivateKey))
+
+		cnrID := cidtest.ID()
+		cont := containerSDK.Container{}
+		cont.Init()
+		pp := netmap.PlacementPolicy{}
+		require.NoError(t, pp.DecodeString("REP 1"))
+		cont.SetPlacementPolicy(pp)
+
+		var nonIssuerNode1 netmap.NodeInfo
+		nonIssuerKey1, err := keys.NewPrivateKey()
+		require.NoError(t, err)
+		nonIssuerNode1.SetPublicKey(nonIssuerKey1.PublicKey().Bytes())
+
+		var nonIssuerNode2 netmap.NodeInfo
+		nonIssuerKey2, err := keys.NewPrivateKey()
+		require.NoError(t, err)
+		nonIssuerNode2.SetPublicKey(nonIssuerKey2.PublicKey().Bytes())
+
+		currentEpochNM := &netmap.NetMap{}
+		currentEpochNM.SetEpoch(curEpoch)
+		currentEpochNM.SetNodes([]netmap.NodeInfo{nonIssuerNode1})
+
+		previousEpochNM := &netmap.NetMap{}
+		previousEpochNM.SetEpoch(curEpoch - 1)
+		previousEpochNM.SetNodes([]netmap.NodeInfo{nonIssuerNode2})
+
+		obj := objectSDK.New()
+		obj.SetContainerID(cnrID)
+		obj.SetSessionToken(tok)
+		obj.SetOwnerID(&owner)
+		require.NoError(t, objectSDK.SetIDWithSignature(signer.PrivateKey, obj))
+
+		v := NewFormatValidator(
+			WithNetState(testNetState{
+				epoch: curEpoch,
+			}),
+			WithLockSource(ls),
+			WithVerifySessionTokenIssuer(true),
+			WithInnerRing(&testIRSource{
+				irNodes: [][]byte{},
+			}),
+			WithContainersSource(
+				&testContainerSource{
+					containers: map[cid.ID]*container.Container{
+						cnrID: {
+							Value: cont,
+						},
+					},
+				},
+			),
+			WithNetmapSource(
+				&testNetmapSource{
+					netmaps: map[uint64]*netmap.NetMap{
+						curEpoch:     currentEpochNM,
+						curEpoch - 1: previousEpochNM,
+					},
+					currentEpoch: curEpoch,
+				},
+			),
+			WithLogger(&logger.Logger{Logger: zaptest.NewLogger(t)}),
+		)
+
+		require.Error(t, v.Validate(context.Background(), obj, false))
+	})
+}
+
+type testIRSource struct {
+	irNodes [][]byte
+}
+
+func (s *testIRSource) InnerRingKeys() ([][]byte, error) {
+	return s.irNodes, nil
+}
+
+type testContainerSource struct {
+	containers map[cid.ID]*container.Container
+}
+
+func (s *testContainerSource) Get(cnrID cid.ID) (*container.Container, error) {
+	if cnr, found := s.containers[cnrID]; found {
+		return cnr, nil
+	}
+	return nil, fmt.Errorf("container not found")
+}
+
+func (s *testContainerSource) DeletionInfo(cid.ID) (*container.DelInfo, error) {
+	return nil, nil
+}
+
+type testNetmapSource struct {
+	netmaps      map[uint64]*netmap.NetMap
+	currentEpoch uint64
+}
+
+func (s *testNetmapSource) GetNetMap(diff uint64) (*netmap.NetMap, error) {
+	if diff >= s.currentEpoch {
+		return nil, fmt.Errorf("invalid diff")
+	}
+	return s.GetNetMapByEpoch(s.currentEpoch - diff)
+}
+
+func (s *testNetmapSource) GetNetMapByEpoch(epoch uint64) (*netmap.NetMap, error) {
+	if nm, found := s.netmaps[epoch]; found {
+		return nm, nil
+	}
+	return nil, fmt.Errorf("netmap not found")
+}
+
+func (s *testNetmapSource) Epoch() (uint64, error) {
+	return s.currentEpoch, nil
+}

pkg/core/object/sender_classifier.go

@@ -1,4 +1,4 @@
-package v2
+package object
 
 import (
 	"bytes"
@@ -11,50 +11,64 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/acl"
 	cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/netmap"
+	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/user"
+	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
 	"go.uber.org/zap"
 )
 
-type senderClassifier struct {
+type InnerRing interface {
+	InnerRingKeys() ([][]byte, error)
+}
+
+type SenderClassifier struct {
 	log       *logger.Logger
-	innerRing InnerRingFetcher
+	innerRing InnerRing
 	netmap    core.Source
 }
 
-type classifyResult struct {
+func NewSenderClassifier(innerRing InnerRing, netmap core.Source, log *logger.Logger) SenderClassifier {
-	role acl.Role
+	return SenderClassifier{
-	key  []byte
+		log:       log,
+		innerRing: innerRing,
+		netmap:    netmap,
+	}
 }
 
-func (c senderClassifier) classify(
+type ClassifyResult struct {
-	req MetaWithToken,
+	Role acl.Role
-	idCnr cid.ID,
+	Key  []byte
-	cnr container.Container) (res *classifyResult, err error) {
+}
-	ownerID, ownerKey, err := req.RequestOwner()
-	if err != nil {
-		return nil, err
-	}
 
+func (c SenderClassifier) Classify(
+	ownerID *user.ID,
+	ownerKey *keys.PublicKey,
+	idCnr cid.ID,
+	cnr container.Container) (res *ClassifyResult, err error) {
 	ownerKeyInBytes := ownerKey.Bytes()
 
 	// TODO: #767 get owner from frostfs.id if present
 
 	// if request owner is the same as container owner, return RoleUser
 	if ownerID.Equals(cnr.Owner()) {
-		return &classifyResult{
+		return &ClassifyResult{
-			role: acl.RoleOwner,
+			Role: acl.RoleOwner,
-			key:  ownerKeyInBytes,
+			Key:  ownerKeyInBytes,
 		}, nil
 	}
 
+	return c.IsInnerRingOrContainerNode(ownerKeyInBytes, idCnr, cnr)
+}
+
+func (c SenderClassifier) IsInnerRingOrContainerNode(ownerKeyInBytes []byte, idCnr cid.ID, cnr container.Container) (*ClassifyResult, error) {
 	isInnerRingNode, err := c.isInnerRingKey(ownerKeyInBytes)
 	if err != nil {
 		// do not throw error, try best case matching
 		c.log.Debug(logs.V2CantCheckIfRequestFromInnerRing,
 			zap.String("error", err.Error()))
 	} else if isInnerRingNode {
-		return &classifyResult{
+		return &ClassifyResult{
-			role: acl.RoleInnerRing,
+			Role: acl.RoleInnerRing,
-			key:  ownerKeyInBytes,
+			Key:  ownerKeyInBytes,
 		}, nil
 	}
 
@@ -69,20 +83,20 @@ func (c senderClassifier) classify(
 		c.log.Debug(logs.V2CantCheckIfRequestFromContainerNode,
 			zap.String("error", err.Error()))
 	} else if isContainerNode {
-		return &classifyResult{
+		return &ClassifyResult{
-			role: acl.RoleContainer,
+			Role: acl.RoleContainer,
-			key:  ownerKeyInBytes,
+			Key:  ownerKeyInBytes,
 		}, nil
 	}
 
 	// if none of above, return RoleOthers
-	return &classifyResult{
+	return &ClassifyResult{
-		role: acl.RoleOthers,
+		Role: acl.RoleOthers,
-		key:  ownerKeyInBytes,
+		Key:  ownerKeyInBytes,
 	}, nil
 }
 
-func (c senderClassifier) isInnerRingKey(owner []byte) (bool, error) {
+func (c SenderClassifier) isInnerRingKey(owner []byte) (bool, error) {
 	innerRingKeys, err := c.innerRing.InnerRingKeys()
 	if err != nil {
 		return false, err
@@ -98,7 +112,7 @@ func (c senderClassifier) isInnerRingKey(owner []byte) (bool, error) {
 	return false, nil
 }
 
-func (c senderClassifier) isContainerKey(
+func (c SenderClassifier) isContainerKey(
 	owner, idCnr []byte,
 	cnr container.Container) (bool, error) {
 	nm, err := core.GetLatestNetworkMap(c.netmap) // first check current netmap

pkg/local_object_storage/blobovnicza/blobovnicza.go

@@ -16,7 +16,8 @@ import (
 type Blobovnicza struct {
 	cfg
 
-	dataSize atomic.Uint64
+	dataSize   atomic.Uint64
+	itemsCount atomic.Uint64
 
 	boltDB *bbolt.DB
 

pkg/local_object_storage/blobovnicza/blobovnicza_test.go

@@ -3,7 +3,6 @@ package blobovnicza
 import (
 	"context"
 	"crypto/rand"
-	"errors"
 	"os"
 	"testing"
 
@@ -64,7 +63,7 @@ func TestBlobovnicza(t *testing.T) {
 		WithPath(p),
 		WithObjectSizeLimit(objSizeLim),
 		WithFullSizeLimit(sizeLim),
-		WithLogger(test.NewLogger(t, false)),
+		WithLogger(test.NewLogger(t, true)),
 	)
 
 	defer os.Remove(p)
@@ -98,9 +97,9 @@ func TestBlobovnicza(t *testing.T) {
 		testPutGet(t, blz, oidtest.Address(), objSizeLim, nil, nil)
 	}
 
-	// from now objects should not be saved
+	// blobovnizca accepts object event if full
 	testPutGet(t, blz, oidtest.Address(), 1024, func(err error) bool {
-		return errors.Is(err, ErrFull)
+		return err == nil
 	}, nil)
 
 	require.NoError(t, blz.Close())

pkg/local_object_storage/blobovnicza/control.go

@@ -14,7 +14,7 @@ import (
 // Open opens an internal database at the configured path with the configured permissions.
 //
 // If the database file does not exist, it will be created automatically.
-// If blobovnizca is already open, does nothing.
+// If blobovnicza is already open, does nothing.
 func (b *Blobovnicza) Open() error {
 	b.controlMtx.Lock()
 	defer b.controlMtx.Unlock()
@@ -45,7 +45,7 @@ func (b *Blobovnicza) Open() error {
 	b.boltDB, err = bbolt.Open(b.path, b.perm, b.boltOptions)
 	if err == nil {
 		b.opened = true
-		b.metrics.IncOpenBlobovnizcaCount()
+		b.metrics.IncOpenBlobovniczaCount()
 	}
 
 	return err
@@ -54,13 +54,13 @@ func (b *Blobovnicza) Open() error {
 // Init initializes internal database structure.
 //
 // If Blobovnicza is already initialized, no action is taken.
-// Blobovnizca must be open, otherwise an error will return.
+// Blobovnicza must be open, otherwise an error will return.
 func (b *Blobovnicza) Init() error {
 	b.controlMtx.Lock()
 	defer b.controlMtx.Unlock()
 
 	if !b.opened {
-		return errors.New("blobovnizca is not open")
+		return errors.New("blobovnicza is not open")
 	}
 
 	b.log.Debug(logs.BlobovniczaInitializing,
@@ -68,8 +68,10 @@ func (b *Blobovnicza) Init() error {
 		zap.Uint64("storage size limit", b.fullSizeLimit),
 	)
 
-	if size := b.dataSize.Load(); size != 0 {
+	size := b.dataSize.Load()
-		b.log.Debug(logs.BlobovniczaAlreadyInitialized, zap.Uint64("size", size))
+	items := b.itemsCount.Load()
+	if size != 0 || items != 0 {
+		b.log.Debug(logs.BlobovniczaAlreadyInitialized, zap.Uint64("size", size), zap.Uint64("items", items))
 		return nil
 	}
 
@@ -96,14 +98,17 @@ func (b *Blobovnicza) Init() error {
 		}
 	}
 
-	return b.initializeSize()
+	return b.initializeCounters()
 }
 
-func (b *Blobovnicza) initializeSize() error {
+func (b *Blobovnicza) initializeCounters() error {
 	var size uint64
+	var items uint64
 	err := b.boltDB.View(func(tx *bbolt.Tx) error {
 		return b.iterateAllBuckets(tx, func(lower, upper uint64, b *bbolt.Bucket) (bool, error) {
-			size += uint64(b.Stats().KeyN) * upper
+			keysN := uint64(b.Stats().KeyN)
+			size += keysN * upper
+			items += keysN
 			return false, nil
 		})
 	})
@@ -111,13 +116,15 @@ func (b *Blobovnicza) initializeSize() error {
 		return fmt.Errorf("can't determine DB size: %w", err)
 	}
 	b.dataSize.Store(size)
-	b.metrics.AddOpenBlobovnizcaSize(size)
+	b.itemsCount.Store(items)
+	b.metrics.AddOpenBlobovniczaSize(size)
+	b.metrics.AddOpenBlobovniczaItems(items)
 	return nil
 }
 
 // Close releases all internal database resources.
 //
-// If blobovnizca is already closed, does nothing.
+// If blobovnicza is already closed, does nothing.
 func (b *Blobovnicza) Close() error {
 	b.controlMtx.Lock()
 	defer b.controlMtx.Unlock()
@@ -134,9 +141,11 @@ func (b *Blobovnicza) Close() error {
 		return err
 	}
 
-	b.metrics.DecOpenBlobovnizcaCount()
+	b.metrics.DecOpenBlobovniczaCount()
-	b.metrics.SubOpenBlobovnizcaSize(b.dataSize.Load())
+	b.metrics.SubOpenBlobovniczaSize(b.dataSize.Load())
+	b.metrics.SubOpenBlobovniczaItems(b.itemsCount.Load())
 	b.dataSize.Store(0)
+	b.itemsCount.Store(0)
 
 	b.opened = false
 

pkg/local_object_storage/blobovnicza/delete.go

@@ -74,7 +74,7 @@ func (b *Blobovnicza) Delete(ctx context.Context, prm DeletePrm) (DeleteRes, err
 			zap.String("binary size", stringifyByteSize(dataSize)),
 			zap.String("range", stringifyBounds(sizeLowerBound, sizeUpperBound)),
 		)
-		b.decSize(sizeUpperBound)
+		b.itemDeleted(sizeUpperBound)
 	}
 
 	return DeleteRes{}, err

pkg/local_object_storage/blobovnicza/metrics.go

@@ -1,16 +1,21 @@
 package blobovnicza
 
 type Metrics interface {
-	IncOpenBlobovnizcaCount()
+	IncOpenBlobovniczaCount()
-	DecOpenBlobovnizcaCount()
+	DecOpenBlobovniczaCount()
 
-	AddOpenBlobovnizcaSize(size uint64)
+	AddOpenBlobovniczaSize(size uint64)
-	SubOpenBlobovnizcaSize(size uint64)
+	SubOpenBlobovniczaSize(size uint64)
+
+	AddOpenBlobovniczaItems(items uint64)
+	SubOpenBlobovniczaItems(items uint64)
 }
 
 type NoopMetrics struct{}
 
-func (m *NoopMetrics) IncOpenBlobovnizcaCount()      {}
+func (m *NoopMetrics) IncOpenBlobovniczaCount()       {}
-func (m *NoopMetrics) DecOpenBlobovnizcaCount()      {}
+func (m *NoopMetrics) DecOpenBlobovniczaCount()       {}
-func (m *NoopMetrics) AddOpenBlobovnizcaSize(uint64) {}
+func (m *NoopMetrics) AddOpenBlobovniczaSize(uint64)  {}
-func (m *NoopMetrics) SubOpenBlobovnizcaSize(uint64) {}
+func (m *NoopMetrics) SubOpenBlobovniczaSize(uint64)  {}
+func (m *NoopMetrics) AddOpenBlobovniczaItems(uint64) {}
+func (m *NoopMetrics) SubOpenBlobovniczaItems(uint64) {}

pkg/local_object_storage/blobovnicza/put.go

@@ -23,10 +23,6 @@ type PutPrm struct {
 type PutRes struct {
 }
 
-// ErrFull is returned when trying to save an
-// object to a filled blobovnicza.
-var ErrFull = logicerr.New("blobovnicza is full")
-
 // SetAddress sets the address of the saving object.
 func (p *PutPrm) SetAddress(addr oid.Address) {
 	p.addr = addr
@@ -65,10 +61,6 @@ func (b *Blobovnicza) Put(ctx context.Context, prm PutPrm) (PutRes, error) {
 	key := addressKey(prm.addr)
 
 	err := b.boltDB.Batch(func(tx *bbolt.Tx) error {
-		if b.full() {
-			return ErrFull
-		}
-
 		buck := tx.Bucket(bucketName)
 		if buck == nil {
 			// expected to happen:
@@ -85,7 +77,7 @@ func (b *Blobovnicza) Put(ctx context.Context, prm PutPrm) (PutRes, error) {
 		return nil
 	})
 	if err == nil {
-		b.incSize(upperBound)
+		b.itemAdded(upperBound)
 	}
 
 	return PutRes{}, err

pkg/local_object_storage/blobovnicza/sizes.go

@@ -3,6 +3,7 @@ package blobovnicza
 import (
 	"encoding/binary"
 	"fmt"
+	"math"
 	"math/bits"
 	"strconv"
 )
@@ -40,16 +41,20 @@ func upperPowerOfTwo(v uint64) uint64 {
 	return 1 << bits.Len64(v-1)
 }
 
-func (b *Blobovnicza) incSize(sz uint64) {
+func (b *Blobovnicza) itemAdded(itemSize uint64) {
-	b.dataSize.Add(sz)
+	b.dataSize.Add(itemSize)
-	b.metrics.AddOpenBlobovnizcaSize(sz)
+	b.itemsCount.Add(1)
+	b.metrics.AddOpenBlobovniczaSize(itemSize)
+	b.metrics.AddOpenBlobovniczaItems(1)
 }
 
-func (b *Blobovnicza) decSize(sz uint64) {
+func (b *Blobovnicza) itemDeleted(itemSize uint64) {
-	b.dataSize.Add(^(sz - 1))
+	b.dataSize.Add(^(itemSize - 1))
-	b.metrics.SubOpenBlobovnizcaSize(sz)
+	b.itemsCount.Add(math.MaxUint64)
+	b.metrics.SubOpenBlobovniczaSize(itemSize)
+	b.metrics.SubOpenBlobovniczaItems(1)
 }
 
-func (b *Blobovnicza) full() bool {
+func (b *Blobovnicza) IsFull() bool {
 	return b.dataSize.Load() >= b.fullSizeLimit
 }

pkg/local_object_storage/blobstor/blobovniczatree/active.go

@@ -0,0 +1,213 @@
+package blobovniczatree
+
+import (
+	"path/filepath"
+	"sync"
+
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobovnicza"
+	utilSync "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/sync"
+)
+
+type activeDB struct {
+	blz  *blobovnicza.Blobovnicza
+	shDB *sharedDB
+}
+
+func (db *activeDB) Blobovnicza() *blobovnicza.Blobovnicza {
+	return db.blz
+}
+
+func (db *activeDB) Close() {
+	db.shDB.Close()
+}
+
+func (db *activeDB) Path() string {
+	return db.shDB.Path()
+}
+
+// activeDBManager manages active blobovnicza instances (that is, those that are being used for Put).
+//
+// Uses dbManager for opening/closing sharedDB instances.
+// Stores a reference to an open active sharedDB, so dbManager does not close it.
+// When changing the active sharedDB, releases the reference to the previous active sharedDB.
+type activeDBManager struct {
+	levelToActiveDBGuard *sync.RWMutex
+	levelToActiveDB      map[string]*sharedDB
+	levelLock            *utilSync.KeyLocker[string]
+	closed               bool
+
+	dbManager *dbManager
+	leafWidth uint64
+}
+
+func newActiveDBManager(dbManager *dbManager, leafWidth uint64) *activeDBManager {
+	return &activeDBManager{
+		levelToActiveDBGuard: &sync.RWMutex{},
+		levelToActiveDB:      make(map[string]*sharedDB),
+		levelLock:            utilSync.NewKeyLocker[string](),
+
+		dbManager: dbManager,
+		leafWidth: leafWidth,
+	}
+}
+
+// GetOpenedActiveDBForLevel returns active DB for level.
+// DB must be closed after use.
+func (m *activeDBManager) GetOpenedActiveDBForLevel(lvlPath string) (*activeDB, error) {
+	activeDB, err := m.getCurrentActiveIfOk(lvlPath)
+	if err != nil {
+		return nil, err
+	}
+	if activeDB != nil {
+		return activeDB, nil
+	}
+
+	return m.updateAndGetActive(lvlPath)
+}
+
+func (m *activeDBManager) Open() {
+	m.levelToActiveDBGuard.Lock()
+	defer m.levelToActiveDBGuard.Unlock()
+
+	m.closed = false
+}
+
+func (m *activeDBManager) Close() {
+	m.levelToActiveDBGuard.Lock()
+	defer m.levelToActiveDBGuard.Unlock()
+
+	for _, db := range m.levelToActiveDB {
+		db.Close()
+	}
+	m.levelToActiveDB = make(map[string]*sharedDB)
+	m.closed = true
+}
+
+func (m *activeDBManager) getCurrentActiveIfOk(lvlPath string) (*activeDB, error) {
+	m.levelToActiveDBGuard.RLock()
+	defer m.levelToActiveDBGuard.RUnlock()
+
+	if m.closed {
+		return nil, errClosed
+	}
+
+	db, ok := m.levelToActiveDB[lvlPath]
+	if !ok {
+		return nil, nil
+	}
+
+	blz, err := db.Open() //open db for usage, will be closed on activeDB.Close()
+	if err != nil {
+		return nil, err
+	}
+
+	if blz.IsFull() {
+		db.Close()
+		return nil, nil
+	}
+
+	return &activeDB{
+		blz:  blz,
+		shDB: db,
+	}, nil
+}
+
+func (m *activeDBManager) updateAndGetActive(lvlPath string) (*activeDB, error) {
+	m.levelLock.Lock(lvlPath)
+	defer m.levelLock.Unlock(lvlPath)
+
+	current, err := m.getCurrentActiveIfOk(lvlPath)
+	if err != nil {
+		return nil, err
+	}
+	if current != nil {
+		return current, nil
+	}
+
+	nextShDB, err := m.getNextSharedDB(lvlPath)
+	if err != nil {
+		return nil, err
+	}
+
+	if nextShDB == nil {
+		return nil, nil
+	}
+
+	blz, err := nextShDB.Open() // open db for client, client must call Close() after usage
+	if err != nil {
+		return nil, err
+	}
+	return &activeDB{
+		blz:  blz,
+		shDB: nextShDB,
+	}, nil
+}
+
+func (m *activeDBManager) getNextSharedDB(lvlPath string) (*sharedDB, error) {
+	var idx uint64
+	var iterCount uint64
+	hasActive, currentIdx := m.hasActiveDB(lvlPath)
+	if hasActive {
+		idx = (currentIdx + 1) % m.leafWidth
+	}
+
+	var next *sharedDB
+
+	for iterCount < m.leafWidth {
+		path := filepath.Join(lvlPath, u64ToHexString(idx))
+		shDB := m.dbManager.GetByPath(path)
+		db, err := shDB.Open() //open db to hold active DB open, will be closed if db is full, after m.replace or by activeDBManager.Close()
+		if err != nil {
+			return nil, err
+		}
+		if db.IsFull() {
+			shDB.Close()
+		} else {
+			next = shDB
+			break
+		}
+		idx = (idx + 1) % m.leafWidth
+		iterCount++
+	}
+
+	previous, updated := m.replace(lvlPath, next)
+	if !updated && next != nil {
+		next.Close() // manager is closed, so don't hold active DB open
+	}
+	if updated && previous != nil {
+		previous.Close()
+	}
+	return next, nil
+}
+
+func (m *activeDBManager) hasActiveDB(lvlPath string) (bool, uint64) {
+	m.levelToActiveDBGuard.RLock()
+	defer m.levelToActiveDBGuard.RUnlock()
+
+	if m.closed {
+		return false, 0
+	}
+
+	db, ok := m.levelToActiveDB[lvlPath]
+	if !ok {
+		return false, 0
+	}
+	return true, u64FromHexString(filepath.Base(db.Path()))
+}
+
+func (m *activeDBManager) replace(lvlPath string, shDB *sharedDB) (*sharedDB, bool) {
+	m.levelToActiveDBGuard.Lock()
+	defer m.levelToActiveDBGuard.Unlock()
+
+	if m.closed {
+		return nil, false
+	}
+
+	previous := m.levelToActiveDB[lvlPath]
+	if shDB == nil {
+		delete(m.levelToActiveDB, lvlPath)
+	} else {
+		m.levelToActiveDB[lvlPath] = shDB
+	}
+	return previous, true
+}

pkg/local_object_storage/blobstor/blobovniczatree/blobovnicza.go

@@ -3,19 +3,12 @@ package blobovniczatree
 import (
 	"errors"
 	"fmt"
-	"path/filepath"
 	"strconv"
-	"sync"
 
-	"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
-	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobovnicza"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobstor/common"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobstor/compression"
-	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/util/logicerr"
 	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
 	"git.frostfs.info/TrueCloudLab/hrw"
-	"github.com/hashicorp/golang-lru/v2/simplelru"
-	"go.uber.org/zap"
 )
 
 // Blobovniczas represents the storage of the "small" objects.
@@ -61,35 +54,16 @@ import (
 type Blobovniczas struct {
 	cfg
 
-	// cache of opened filled Blobovniczas
+	commondbManager *dbManager
-	opened *simplelru.LRU[string, *blobovnicza.Blobovnicza]
+	activeDBManager *activeDBManager
-	// lruMtx protects opened cache.
+	dbCache         *dbCache
-	// It isn't RWMutex because `Get` calls must
-	// lock this mutex on write, as LRU info is updated.
-	// It must be taken after activeMtx in case when eviction is possible
-	// i.e. `Add`, `Purge` and `Remove` calls.
-	lruMtx sync.Mutex
-
-	// mutex to exclude parallel bbolt.Open() calls
-	// bbolt.Open() deadlocks if it tries to open already opened file
-	openMtx sync.Mutex
-
-	// list of active (opened, non-filled) Blobovniczas
-	activeMtx sync.RWMutex
-	active    map[string]blobovniczaWithIndex
-}
-
-type blobovniczaWithIndex struct {
-	ind uint64
-
-	blz *blobovnicza.Blobovnicza
 }
 
 var _ common.Storage = (*Blobovniczas)(nil)
 
 var errPutFailed = errors.New("could not save the object in any blobovnicza")
 
-// NewBlobovniczaTree returns new instance of blobovnizas tree.
+// NewBlobovniczaTree returns new instance of blobovniczas tree.
 func NewBlobovniczaTree(opts ...Option) (blz *Blobovniczas) {
 	blz = new(Blobovniczas)
 	initConfig(&blz.cfg)
@@ -98,116 +72,17 @@ func NewBlobovniczaTree(opts ...Option) (blz *Blobovniczas) {
 		opts[i](&blz.cfg)
 	}
 
-	cache, err := simplelru.NewLRU[string, *blobovnicza.Blobovnicza](blz.openedCacheSize, func(p string, value *blobovnicza.Blobovnicza) {
+	if blz.blzLeafWidth == 0 {
-		lvlPath := filepath.Dir(p)
+		blz.blzLeafWidth = blz.blzShallowWidth
-		if b, ok := blz.active[lvlPath]; ok && b.ind == u64FromHexString(filepath.Base(p)) {
-			// This branch is taken if we have recently updated active blobovnicza and remove
-			// it from opened cache.
-			return
-		} else if err := value.Close(); err != nil {
-			blz.log.Error(logs.BlobovniczatreeCouldNotCloseBlobovnicza,
-				zap.String("id", p),
-				zap.String("error", err.Error()),
-			)
-		} else {
-			blz.log.Debug(logs.BlobovniczatreeBlobovniczaSuccessfullyClosedOnEvict,
-				zap.String("id", p),
-			)
-		}
-	})
-	if err != nil {
-		// occurs only if the size is not positive
-		panic(fmt.Errorf("could not create LRU cache of size %d: %w", blz.openedCacheSize, err))
 	}
 
-	cp := uint64(1)
+	blz.commondbManager = newDBManager(blz.rootPath, blz.blzOpts, blz.blzLeafWidth, blz.readOnly, blz.metrics.Blobovnicza(), blz.log)
-	for i := uint64(0); i < blz.blzShallowDepth; i++ {
+	blz.activeDBManager = newActiveDBManager(blz.commondbManager, blz.blzLeafWidth)
-		cp *= blz.blzShallowWidth
+	blz.dbCache = newDBCache(blz.openedCacheSize, blz.commondbManager)
-	}
-
-	blz.opened = cache
-	blz.active = make(map[string]blobovniczaWithIndex, cp)
 
 	return blz
 }
 
-// activates and returns activated blobovnicza of p-level (dir).
-//
-// returns error if blobvnicza could not be activated.
-func (b *Blobovniczas) getActivated(lvlPath string) (blobovniczaWithIndex, error) {
-	return b.updateAndGet(lvlPath, nil)
-}
-
-// updates active blobovnicza of p-level (dir).
-//
-// if current active blobovnicza's index is not old, it remains unchanged.
-func (b *Blobovniczas) updateActive(lvlPath string, old *uint64) error {
-	b.log.Debug(logs.BlobovniczatreeUpdatingActiveBlobovnicza, zap.String("path", lvlPath))
-
-	_, err := b.updateAndGet(lvlPath, old)
-
-	b.log.Debug(logs.BlobovniczatreeActiveBlobovniczaSuccessfullyUpdated, zap.String("path", lvlPath))
-
-	return err
-}
-
-// updates and returns active blobovnicza of p-level (dir).
-//
-// if current active blobovnicza's index is not old, it is returned unchanged.
-func (b *Blobovniczas) updateAndGet(lvlPath string, old *uint64) (blobovniczaWithIndex, error) {
-	b.activeMtx.RLock()
-	active, ok := b.active[lvlPath]
-	b.activeMtx.RUnlock()
-
-	if ok {
-		if old != nil {
-			if active.ind == b.blzShallowWidth-1 {
-				return active, logicerr.New("no more Blobovniczas")
-			} else if active.ind != *old {
-				// sort of CAS in order to control concurrent
-				// updateActive calls
-				return active, nil
-			}
-		} else {
-			return active, nil
-		}
-
-		active.ind++
-	}
-
-	var err error
-	if active.blz, err = b.openBlobovnicza(filepath.Join(lvlPath, u64ToHexString(active.ind))); err != nil {
-		return active, err
-	}
-
-	b.activeMtx.Lock()
-	defer b.activeMtx.Unlock()
-
-	// check 2nd time to find out if it blobovnicza was activated while thread was locked
-	tryActive, ok := b.active[lvlPath]
-	if ok && tryActive.blz == active.blz {
-		return tryActive, nil
-	}
-
-	// Remove from opened cache (active blobovnicza should always be opened).
-	// Because `onEvict` callback is called in `Remove`, we need to update
-	// active map beforehand.
-	b.active[lvlPath] = active
-
-	activePath := filepath.Join(lvlPath, u64ToHexString(active.ind))
-	b.lruMtx.Lock()
-	b.opened.Remove(activePath)
-	if ok {
-		b.opened.Add(filepath.Join(lvlPath, u64ToHexString(tryActive.ind)), tryActive.blz)
-	}
-	b.lruMtx.Unlock()
-
-	b.log.Debug(logs.BlobovniczatreeBlobovniczaSuccessfullyActivated,
-		zap.String("path", activePath))
-
-	return active, nil
-}
-
 // returns hash of the object address.
 func addressHash(addr *oid.Address, path string) uint64 {
 	var a string

pkg/local_object_storage/blobstor/blobovniczatree/cache.go

@@ -0,0 +1,103 @@
+package blobovniczatree
+
+import (
+	"fmt"
+	"sync"
+
+	utilSync "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/sync"
+	"github.com/hashicorp/golang-lru/v2/simplelru"
+)
+
+// dbCache caches sharedDB instances that are NOT open for Put.
+//
+// Uses dbManager for opening/closing sharedDB instances.
+// Stores a reference to an cached sharedDB, so dbManager does not close it.
+type dbCache struct {
+	cacheGuard *sync.RWMutex
+	cache      simplelru.LRUCache[string, *sharedDB]
+	pathLock   *utilSync.KeyLocker[string]
+	closed     bool
+
+	dbManager *dbManager
+}
+
+func newDBCache(size int, dbManager *dbManager) *dbCache {
+	cache, err := simplelru.NewLRU[string, *sharedDB](size, func(_ string, evictedDB *sharedDB) {
+		evictedDB.Close()
+	})
+	if err != nil {
+		// occurs only if the size is not positive
+		panic(fmt.Errorf("could not create LRU cache of size %d: %w", size, err))
+	}
+	return &dbCache{
+		cacheGuard: &sync.RWMutex{},
+		cache:      cache,
+		dbManager:  dbManager,
+		pathLock:   utilSync.NewKeyLocker[string](),
+	}
+}
+
+func (c *dbCache) Open() {
+	c.cacheGuard.Lock()
+	defer c.cacheGuard.Unlock()
+
+	c.closed = false
+}
+
+func (c *dbCache) Close() {
+	c.cacheGuard.Lock()
+	defer c.cacheGuard.Unlock()
+	c.cache.Purge()
+	c.closed = true
+}
+
+func (c *dbCache) GetOrCreate(path string) *sharedDB {
+	value := c.getExisted(path)
+	if value != nil {
+		return value
+	}
+	return c.create(path)
+}
+
+func (c *dbCache) getExisted(path string) *sharedDB {
+	c.cacheGuard.Lock()
+	defer c.cacheGuard.Unlock()
+
+	if value, ok := c.cache.Get(path); ok {
+		return value
+	}
+	return nil
+}
+
+func (c *dbCache) create(path string) *sharedDB {
+	c.pathLock.Lock(path)
+	defer c.pathLock.Unlock(path)
+
+	value := c.getExisted(path)
+	if value != nil {
+		return value
+	}
+
+	value = c.dbManager.GetByPath(path)
+
+	_, err := value.Open() //open db to hold reference, closed by evictedDB.Close() or if cache closed
+	if err != nil {
+		return value
+	}
+	if added := c.put(path, value); !added {
+		value.Close()
+	}
+	return value
+}
+
+func (c *dbCache) put(path string, db *sharedDB) bool {
+	c.cacheGuard.Lock()
+	defer c.cacheGuard.Unlock()
+
+	if !c.closed {
+		c.cache.Add(path, db)
+		return true
+	}
+
+	return false
+}

pkg/local_object_storage/blobstor/blobovniczatree/concurrency_test.go

@@ -0,0 +1,59 @@
+package blobovniczatree
+
+import (
+	"context"
+	"sync"
+	"sync/atomic"
+	"testing"
+
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobstor/common"
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/internal/testutil"
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger/test"
+	"github.com/stretchr/testify/require"
+)
+
+func TestBlobovniczaTree_Concurrency(t *testing.T) {
+	t.Parallel()
+	const n = 1000
+
+	st := NewBlobovniczaTree(
+		WithLogger(test.NewLogger(t, true)),
+		WithObjectSizeLimit(1024),
+		WithBlobovniczaShallowWidth(10),
+		WithBlobovniczaShallowDepth(1),
+		WithRootPath(t.TempDir()))
+	require.NoError(t, st.Open(false))
+	require.NoError(t, st.Init())
+	t.Cleanup(func() {
+		require.NoError(t, st.Close())
+	})
+
+	objGen := &testutil.SeqObjGenerator{ObjSize: 1}
+
+	var cnt atomic.Int64
+	var wg sync.WaitGroup
+	for i := 0; i < 1000; i++ {
+		wg.Add(1)
+		go func() {
+			defer wg.Done()
+			for cnt.Add(1) <= n {
+				obj := objGen.Next()
+				addr := testutil.AddressFromObject(t, obj)
+
+				raw, err := obj.Marshal()
+				require.NoError(t, err)
+
+				_, err = st.Put(context.Background(), common.PutPrm{
+					Address: addr,
+					RawData: raw,
+				})
+				require.NoError(t, err)
+
+				_, err = st.Get(context.Background(), common.GetPrm{Address: addr})
+				require.NoError(t, err)
+			}
+		}()
+	}
+
+	wg.Wait()
+}

pkg/local_object_storage/blobstor/blobovniczatree/control.go

@@ -2,11 +2,8 @@ package blobovniczatree
 
 import (
 	"context"
-	"fmt"
-	"path/filepath"
 
 	"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
-	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobovnicza"
 	"go.uber.org/zap"
 )
 
@@ -14,6 +11,7 @@ import (
 func (b *Blobovniczas) Open(readOnly bool) error {
 	b.readOnly = readOnly
 	b.metrics.SetMode(readOnly)
+	b.openManagers()
 	return nil
 }
 
@@ -29,115 +27,40 @@ func (b *Blobovniczas) Init() error {
 	}
 
 	return b.iterateLeaves(context.TODO(), func(p string) (bool, error) {
-		blz, err := b.openBlobovniczaNoCache(p)
+		shBlz := b.getBlobovniczaWithoutCaching(p)
+		_, err := shBlz.Open()
 		if err != nil {
 			return true, err
 		}
-		defer blz.Close()
+		defer shBlz.Close()
-
-		if err := blz.Init(); err != nil {
-			return true, fmt.Errorf("could not initialize blobovnicza structure %s: %w", p, err)
-		}
 
 		b.log.Debug(logs.BlobovniczatreeBlobovniczaSuccessfullyInitializedClosing, zap.String("id", p))
 		return false, nil
 	})
 }
 
+func (b *Blobovniczas) openManagers() {
+	b.commondbManager.Open() //order important
+	b.activeDBManager.Open()
+	b.dbCache.Open()
+}
+
 // Close implements common.Storage.
 func (b *Blobovniczas) Close() error {
-	b.activeMtx.Lock()
+	b.dbCache.Close() //order important
-
+	b.activeDBManager.Close()
-	b.lruMtx.Lock()
+	b.commondbManager.Close()
-
-	for p, v := range b.active {
-		if err := v.blz.Close(); err != nil {
-			b.log.Debug(logs.BlobovniczatreeCouldNotCloseActiveBlobovnicza,
-				zap.String("path", p),
-				zap.String("error", err.Error()),
-			)
-		}
-		b.opened.Remove(p)
-	}
-	for _, k := range b.opened.Keys() {
-		blz, _ := b.opened.Get(k)
-		if err := blz.Close(); err != nil {
-			b.log.Debug(logs.BlobovniczatreeCouldNotCloseActiveBlobovnicza,
-				zap.String("path", k),
-				zap.String("error", err.Error()),
-			)
-		}
-		b.opened.Remove(k)
-	}
-
-	b.active = make(map[string]blobovniczaWithIndex)
-	b.metrics.Close()
-
-	b.lruMtx.Unlock()
-
-	b.activeMtx.Unlock()
 
 	return nil
 }
 
-// opens and returns blobovnicza with path p.
+// returns blobovnicza with path p
 //
-// If blobovnicza is already opened and cached, instance from cache is returned w/o changes.
+// If blobovnicza is already cached, instance from cache is returned w/o changes.
-func (b *Blobovniczas) openBlobovnicza(p string) (*blobovnicza.Blobovnicza, error) {
+func (b *Blobovniczas) getBlobovnicza(p string) *sharedDB {
-	b.lruMtx.Lock()
+	return b.dbCache.GetOrCreate(p)
-	v, ok := b.opened.Get(p)
-	b.lruMtx.Unlock()
-	if ok {
-		// blobovnicza should be opened in cache
-		return v, nil
-	}
-
-	lvlPath := filepath.Dir(p)
-	curIndex := u64FromHexString(filepath.Base(p))
-
-	b.activeMtx.RLock()
-	defer b.activeMtx.RUnlock()
-
-	active, ok := b.active[lvlPath]
-	if ok && active.ind == curIndex {
-		return active.blz, nil
-	}
-
-	b.lruMtx.Lock()
-	defer b.lruMtx.Unlock()
-
-	v, ok = b.opened.Get(p)
-	if ok {
-		return v, nil
-	}
-
-	blz, err := b.openBlobovniczaNoCache(p)
-	if err != nil {
-		return nil, err
-	}
-
-	b.opened.Add(p, blz)
-
-	return blz, nil
 }
 
-func (b *Blobovniczas) openBlobovniczaNoCache(p string) (*blobovnicza.Blobovnicza, error) {
+func (b *Blobovniczas) getBlobovniczaWithoutCaching(p string) *sharedDB {
-	b.openMtx.Lock()
+	return b.commondbManager.GetByPath(p)
-	defer b.openMtx.Unlock()
-
-	path := filepath.Join(b.rootPath, p)
-
-	blz := blobovnicza.New(append(b.blzOpts,
-		blobovnicza.WithReadOnly(b.readOnly),
-		blobovnicza.WithPath(path),
-		blobovnicza.WithMetrics(b.metrics.Blobovnizca()),
-	)...)
-
-	if err := blz.Open(); err != nil {
-		return nil, fmt.Errorf("could not open blobovnicza %s: %w", p, err)
-	}
-	if err := blz.Init(); err != nil {
-		return nil, fmt.Errorf("could not init blobovnicza %s: %w", p, err)
-	}
-	return blz, nil
 }

pkg/local_object_storage/blobstor/blobovniczatree/delete.go

@@ -3,7 +3,6 @@ package blobovniczatree
 import (
 	"context"
 	"encoding/hex"
-	"path/filepath"
 	"time"
 
 	"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
@@ -48,10 +47,12 @@ func (b *Blobovniczas) Delete(ctx context.Context, prm common.DeletePrm) (res co
 
 	if prm.StorageID != nil {
 		id := blobovnicza.NewIDFromBytes(prm.StorageID)
-		blz, err := b.openBlobovnicza(id.String())
+		shBlz := b.getBlobovnicza(id.String())
+		blz, err := shBlz.Open()
 		if err != nil {
 			return res, err
 		}
+		defer shBlz.Close()
 
 		if res, err = b.deleteObject(ctx, blz, bPrm); err == nil {
 			success = true
@@ -59,16 +60,10 @@ func (b *Blobovniczas) Delete(ctx context.Context, prm common.DeletePrm) (res co
 		return res, err
 	}
 
-	activeCache := make(map[string]struct{})
 	objectFound := false
 
 	err = b.iterateSortedLeaves(ctx, &prm.Address, func(p string) (bool, error) {
-		dirPath := filepath.Dir(p)
+		res, err = b.deleteObjectFromLevel(ctx, bPrm, p)
-
-		// don't process active blobovnicza of the level twice
-		_, ok := activeCache[dirPath]
-
-		res, err = b.deleteObjectFromLevel(ctx, bPrm, p, !ok)
 		if err != nil {
 			if !client.IsErrObjectNotFound(err) {
 				b.log.Debug(logs.BlobovniczatreeCouldNotRemoveObjectFromLevel,
@@ -78,8 +73,6 @@ func (b *Blobovniczas) Delete(ctx context.Context, prm common.DeletePrm) (res co
 			}
 		}
 
-		activeCache[dirPath] = struct{}{}
-
 		if err == nil {
 			objectFound = true
 		}
@@ -100,57 +93,13 @@ func (b *Blobovniczas) Delete(ctx context.Context, prm common.DeletePrm) (res co
 // tries to delete object from particular blobovnicza.
 //
 // returns no error if object was removed from some blobovnicza of the same level.
-func (b *Blobovniczas) deleteObjectFromLevel(ctx context.Context, prm blobovnicza.DeletePrm, blzPath string, tryActive bool) (common.DeleteRes, error) {
+func (b *Blobovniczas) deleteObjectFromLevel(ctx context.Context, prm blobovnicza.DeletePrm, blzPath string) (common.DeleteRes, error) {
-	lvlPath := filepath.Dir(blzPath)
+	shBlz := b.getBlobovnicza(blzPath)
-
+	blz, err := shBlz.Open()
-	// try to remove from blobovnicza if it is opened
-	b.lruMtx.Lock()
-	v, ok := b.opened.Get(blzPath)
-	b.lruMtx.Unlock()
-	if ok {
-		if res, err := b.deleteObject(ctx, v, prm); err == nil {
-			return res, err
-		} else if !client.IsErrObjectNotFound(err) {
-			b.log.Debug(logs.BlobovniczatreeCouldNotRemoveObjectFromOpenedBlobovnicza,
-				zap.String("path", blzPath),
-				zap.String("error", err.Error()),
-			)
-		}
-	}
-
-	// therefore the object is possibly placed in a lighter blobovnicza
-
-	// next we check in the active level blobobnicza:
-	//  * the active blobovnicza is always opened.
-	b.activeMtx.RLock()
-	active, ok := b.active[lvlPath]
-	b.activeMtx.RUnlock()
-
-	if ok && tryActive {
-		if res, err := b.deleteObject(ctx, active.blz, prm); err == nil {
-			return res, err
-		} else if !client.IsErrObjectNotFound(err) {
-			b.log.Debug(logs.BlobovniczatreeCouldNotRemoveObjectFromActiveBlobovnicza,
-				zap.String("path", blzPath),
-				zap.String("error", err.Error()),
-			)
-		}
-	}
-
-	// then object is possibly placed in closed blobovnicza
-
-	// check if it makes sense to try to open the blob
-	// (Blobovniczas "after" the active one are empty anyway,
-	// and it's pointless to open them).
-	if u64FromHexString(filepath.Base(blzPath)) > active.ind {
-		return common.DeleteRes{}, logicerr.Wrap(new(apistatus.ObjectNotFound))
-	}
-
-	// open blobovnicza (cached inside)
-	blz, err := b.openBlobovnicza(blzPath)
 	if err != nil {
 		return common.DeleteRes{}, err
 	}
+	defer shBlz.Close()
 
 	return b.deleteObject(ctx, blz, prm)
 }

pkg/local_object_storage/blobstor/blobovniczatree/errors.go

@@ -7,6 +7,8 @@ import (
 	apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
 )
 
+var errClosed = logicerr.New("blobvnicza is closed")
+
 func isErrOutOfRange(err error) bool {
 	var target *apistatus.ObjectOutOfRange
 	return errors.As(err, &target)

pkg/local_object_storage/blobstor/blobovniczatree/exists.go

@@ -3,7 +3,6 @@ package blobovniczatree
 import (
 	"context"
 	"encoding/hex"
-	"path/filepath"
 	"time"
 
 	"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
@@ -37,26 +36,22 @@ func (b *Blobovniczas) Exists(ctx context.Context, prm common.ExistsPrm) (common
 
 	if prm.StorageID != nil {
 		id := blobovnicza.NewIDFromBytes(prm.StorageID)
-		blz, err := b.openBlobovnicza(id.String())
+		shBlz := b.getBlobovnicza(id.String())
+		blz, err := shBlz.Open()
 		if err != nil {
 			return common.ExistsRes{}, err
 		}
+		defer shBlz.Close()
 
 		exists, err := blz.Exists(ctx, prm.Address)
 		return common.ExistsRes{Exists: exists}, err
 	}
 
-	activeCache := make(map[string]struct{})
-
 	var gPrm blobovnicza.GetPrm
 	gPrm.SetAddress(prm.Address)
 
 	err := b.iterateSortedLeaves(ctx, &prm.Address, func(p string) (bool, error) {
-		dirPath := filepath.Dir(p)
+		_, err := b.getObjectFromLevel(ctx, gPrm, p)
-
-		_, ok := activeCache[dirPath]
-
-		_, err := b.getObjectFromLevel(ctx, gPrm, p, !ok)
 		if err != nil {
 			if !client.IsErrObjectNotFound(err) {
 				b.log.Debug(logs.BlobovniczatreeCouldNotGetObjectFromLevel,
@@ -65,7 +60,6 @@ func (b *Blobovniczas) Exists(ctx context.Context, prm common.ExistsPrm) (common
 			}
 		}
 
-		activeCache[dirPath] = struct{}{}
 		found = err == nil
 		return found, nil
 	})

pkg/local_object_storage/blobstor/blobovniczatree/exists_test.go

@@ -9,16 +9,15 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/core/object"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobstor/common"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobstor/internal/blobstortest"
-	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger/test"
 	"github.com/nspcc-dev/neo-go/pkg/util/slice"
 	"github.com/stretchr/testify/require"
-	"go.uber.org/zap"
 )
 
 func TestExistsInvalidStorageID(t *testing.T) {
 	dir := t.TempDir()
 	b := NewBlobovniczaTree(
-		WithLogger(&logger.Logger{Logger: zap.L()}),
+		WithLogger(test.NewLogger(t, true)),
 		WithObjectSizeLimit(1024),
 		WithBlobovniczaShallowWidth(2),
 		WithBlobovniczaShallowDepth(2),

pkg/local_object_storage/blobstor/blobovniczatree/generic_test.go

@@ -5,8 +5,7 @@ import (
 
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobstor/common"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobstor/internal/blobstortest"
-	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger/test"
-	"go.uber.org/zap"
 )
 
 func TestGeneric(t *testing.T) {
@@ -14,7 +13,7 @@ func TestGeneric(t *testing.T) {
 
 	helper := func(t *testing.T, dir string) common.Storage {
 		return NewBlobovniczaTree(
-			WithLogger(&logger.Logger{Logger: zap.L()}),
+			WithLogger(test.NewLogger(t, true)),
 			WithObjectSizeLimit(maxObjectSize),
 			WithBlobovniczaShallowWidth(2),
 			WithBlobovniczaShallowDepth(2),
@@ -41,7 +40,7 @@ func TestControl(t *testing.T) {
 
 	newTree := func(t *testing.T) common.Storage {
 		return NewBlobovniczaTree(
-			WithLogger(&logger.Logger{Logger: zap.L()}),
+			WithLogger(test.NewLogger(t, true)),
 			WithObjectSizeLimit(maxObjectSize),
 			WithBlobovniczaShallowWidth(2),
 			WithBlobovniczaShallowDepth(2),

pkg/local_object_storage/blobstor/blobovniczatree/get.go

@@ -4,7 +4,6 @@ import (
 	"context"
 	"encoding/hex"
 	"fmt"
-	"path/filepath"
 	"time"
 
 	"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
@@ -48,10 +47,12 @@ func (b *Blobovniczas) Get(ctx context.Context, prm common.GetPrm) (res common.G
 
 	if prm.StorageID != nil {
 		id := blobovnicza.NewIDFromBytes(prm.StorageID)
-		blz, err := b.openBlobovnicza(id.String())
+		shBlz := b.getBlobovnicza(id.String())
+		blz, err := shBlz.Open()
 		if err != nil {
 			return res, err
 		}
+		defer shBlz.Close()
 
 		res, err = b.getObject(ctx, blz, bPrm)
 		if err == nil {
@@ -61,14 +62,8 @@ func (b *Blobovniczas) Get(ctx context.Context, prm common.GetPrm) (res common.G
 		return res, err
 	}
 
-	activeCache := make(map[string]struct{})
-
 	err = b.iterateSortedLeaves(ctx, &prm.Address, func(p string) (bool, error) {
-		dirPath := filepath.Dir(p)
+		res, err = b.getObjectFromLevel(ctx, bPrm, p)
-
-		_, ok := activeCache[dirPath]
-
-		res, err = b.getObjectFromLevel(ctx, bPrm, p, !ok)
 		if err != nil {
 			if !client.IsErrObjectNotFound(err) {
 				b.log.Debug(logs.BlobovniczatreeCouldNotGetObjectFromLevel,
@@ -78,8 +73,6 @@ func (b *Blobovniczas) Get(ctx context.Context, prm common.GetPrm) (res common.G
 			}
 		}
 
-		activeCache[dirPath] = struct{}{}
-
 		// abort iterator if found, otherwise process all Blobovniczas
 		return err == nil, nil
 	})
@@ -98,58 +91,14 @@ func (b *Blobovniczas) Get(ctx context.Context, prm common.GetPrm) (res common.G
 // tries to read object from particular blobovnicza.
 //
 // returns error if object could not be read from any blobovnicza of the same level.
-func (b *Blobovniczas) getObjectFromLevel(ctx context.Context, prm blobovnicza.GetPrm, blzPath string, tryActive bool) (common.GetRes, error) {
+func (b *Blobovniczas) getObjectFromLevel(ctx context.Context, prm blobovnicza.GetPrm, blzPath string) (common.GetRes, error) {
-	lvlPath := filepath.Dir(blzPath)
-
-	// try to read from blobovnicza if it is opened
-	b.lruMtx.Lock()
-	v, ok := b.opened.Get(blzPath)
-	b.lruMtx.Unlock()
-	if ok {
-		if res, err := b.getObject(ctx, v, prm); err == nil {
-			return res, err
-		} else if !client.IsErrObjectNotFound(err) {
-			b.log.Debug(logs.BlobovniczatreeCouldNotReadObjectFromOpenedBlobovnicza,
-				zap.String("path", blzPath),
-				zap.String("error", err.Error()),
-			)
-		}
-	}
-
-	// therefore the object is possibly placed in a lighter blobovnicza
-
-	// next we check in the active level blobobnicza:
-	//  * the freshest objects are probably the most demanded;
-	//  * the active blobovnicza is always opened.
-	b.activeMtx.RLock()
-	active, ok := b.active[lvlPath]
-	b.activeMtx.RUnlock()
-
-	if ok && tryActive {
-		if res, err := b.getObject(ctx, active.blz, prm); err == nil {
-			return res, err
-		} else if !client.IsErrObjectNotFound(err) {
-			b.log.Debug(logs.BlobovniczatreeCouldNotGetObjectFromActiveBlobovnicza,
-				zap.String("path", blzPath),
-				zap.String("error", err.Error()),
-			)
-		}
-	}
-
-	// then object is possibly placed in closed blobovnicza
-
-	// check if it makes sense to try to open the blob
-	// (Blobovniczas "after" the active one are empty anyway,
-	// and it's pointless to open them).
-	if u64FromHexString(filepath.Base(blzPath)) > active.ind {
-		return common.GetRes{}, logicerr.Wrap(new(apistatus.ObjectNotFound))
-	}
-
 	// open blobovnicza (cached inside)
-	blz, err := b.openBlobovnicza(blzPath)
+	shBlz := b.getBlobovnicza(blzPath)
+	blz, err := shBlz.Open()
 	if err != nil {
 		return common.GetRes{}, err
 	}
+	defer shBlz.Close()
 
 	return b.getObject(ctx, blz, prm)
 }

pkg/local_object_storage/blobstor/blobovniczatree/get_range.go

@@ -4,7 +4,6 @@ import (
 	"context"
 	"encoding/hex"
 	"fmt"
-	"path/filepath"
 	"strconv"
 	"time"
 
@@ -47,10 +46,12 @@ func (b *Blobovniczas) GetRange(ctx context.Context, prm common.GetRangePrm) (re
 
 	if prm.StorageID != nil {
 		id := blobovnicza.NewIDFromBytes(prm.StorageID)
-		blz, err := b.openBlobovnicza(id.String())
+		shBlz := b.getBlobovnicza(id.String())
+		blz, err := shBlz.Open()
 		if err != nil {
 			return common.GetRangeRes{}, err
 		}
+		defer shBlz.Close()
 
 		res, err := b.getObjectRange(ctx, blz, prm)
 		if err == nil {
@@ -60,15 +61,10 @@ func (b *Blobovniczas) GetRange(ctx context.Context, prm common.GetRangePrm) (re
 		return res, err
 	}
 
-	activeCache := make(map[string]struct{})
 	objectFound := false
 
 	err = b.iterateSortedLeaves(ctx, &prm.Address, func(p string) (bool, error) {
-		dirPath := filepath.Dir(p)
+		res, err = b.getRangeFromLevel(ctx, prm, p)
-
-		_, ok := activeCache[dirPath]
-
-		res, err = b.getRangeFromLevel(ctx, prm, p, !ok)
 		if err != nil {
 			outOfBounds := isErrOutOfRange(err)
 			if !outOfBounds && !client.IsErrObjectNotFound(err) {
@@ -82,8 +78,6 @@ func (b *Blobovniczas) GetRange(ctx context.Context, prm common.GetRangePrm) (re
 			}
 		}
 
-		activeCache[dirPath] = struct{}{}
-
 		objectFound = err == nil
 
 		// abort iterator if found, otherwise process all Blobovniczas
@@ -106,68 +100,14 @@ func (b *Blobovniczas) GetRange(ctx context.Context, prm common.GetRangePrm) (re
 // tries to read range of object payload data from particular blobovnicza.
 //
 // returns error if object could not be read from any blobovnicza of the same level.
-func (b *Blobovniczas) getRangeFromLevel(ctx context.Context, prm common.GetRangePrm, blzPath string, tryActive bool) (common.GetRangeRes, error) {
+func (b *Blobovniczas) getRangeFromLevel(ctx context.Context, prm common.GetRangePrm, blzPath string) (common.GetRangeRes, error) {
-	lvlPath := filepath.Dir(blzPath)
-
-	// try to read from blobovnicza if it is opened
-	b.lruMtx.Lock()
-	v, ok := b.opened.Get(blzPath)
-	b.lruMtx.Unlock()
-	if ok {
-		res, err := b.getObjectRange(ctx, v, prm)
-		switch {
-		case err == nil,
-			isErrOutOfRange(err):
-			return res, err
-		default:
-			if !client.IsErrObjectNotFound(err) {
-				b.log.Debug(logs.BlobovniczatreeCouldNotReadPayloadRangeFromOpenedBlobovnicza,
-					zap.String("path", blzPath),
-					zap.String("error", err.Error()),
-				)
-			}
-		}
-	}
-
-	// therefore the object is possibly placed in a lighter blobovnicza
-
-	// next we check in the active level blobobnicza:
-	//  * the freshest objects are probably the most demanded;
-	//  * the active blobovnicza is always opened.
-	b.activeMtx.RLock()
-	active, ok := b.active[lvlPath]
-	b.activeMtx.RUnlock()
-
-	if ok && tryActive {
-		res, err := b.getObjectRange(ctx, active.blz, prm)
-		switch {
-		case err == nil,
-			isErrOutOfRange(err):
-			return res, err
-		default:
-			if !client.IsErrObjectNotFound(err) {
-				b.log.Debug(logs.BlobovniczatreeCouldNotReadPayloadRangeFromActiveBlobovnicza,
-					zap.String("path", blzPath),
-					zap.String("error", err.Error()),
-				)
-			}
-		}
-	}
-
-	// then object is possibly placed in closed blobovnicza
-
-	// check if it makes sense to try to open the blob
-	// (Blobovniczas "after" the active one are empty anyway,
-	// and it's pointless to open them).
-	if u64FromHexString(filepath.Base(blzPath)) > active.ind {
-		return common.GetRangeRes{}, logicerr.Wrap(new(apistatus.ObjectNotFound))
-	}
-
 	// open blobovnicza (cached inside)
-	blz, err := b.openBlobovnicza(blzPath)
+	shBlz := b.getBlobovnicza(blzPath)
+	blz, err := shBlz.Open()
 	if err != nil {
 		return common.GetRangeRes{}, err
 	}
+	defer shBlz.Close()
 
 	return b.getObjectRange(ctx, blz, prm)
 }

pkg/local_object_storage/blobstor/blobovniczatree/iterate.go

@@ -68,13 +68,15 @@ func (b *Blobovniczas) Iterate(ctx context.Context, prm common.IteratePrm) (comm
 // iterator over all Blobovniczas in unsorted order. Break on f's error return.
 func (b *Blobovniczas) iterateBlobovniczas(ctx context.Context, ignoreErrors bool, f func(string, *blobovnicza.Blobovnicza) error) error {
 	return b.iterateLeaves(ctx, func(p string) (bool, error) {
-		blz, err := b.openBlobovnicza(p)
+		shBlz := b.getBlobovnicza(p)
+		blz, err := shBlz.Open()
 		if err != nil {
 			if ignoreErrors {
 				return false, nil
 			}
 			return false, fmt.Errorf("could not open blobovnicza %s: %w", p, err)
 		}
+		defer shBlz.Close()
 
 		err = f(p, blz)
 
@@ -115,7 +117,12 @@ func (b *Blobovniczas) iterateDeepest(ctx context.Context, addr oid.Address, f f
 
 // iterator over particular level of directories.
 func (b *Blobovniczas) iterateSorted(ctx context.Context, addr *oid.Address, curPath []string, execDepth uint64, f func([]string) (bool, error)) (bool, error) {
-	indices := indexSlice(b.blzShallowWidth)
+	isLeafLevel := uint64(len(curPath)) == b.blzShallowDepth
+	levelWidth := b.blzShallowWidth
+	if isLeafLevel {
+		levelWidth = b.blzLeafWidth
+	}
+	indices := indexSlice(levelWidth)
 
 	hrw.SortSliceByValue(indices, addressHash(addr, filepath.Join(curPath...)))
 

pkg/local_object_storage/blobstor/blobovniczatree/manager.go

@@ -0,0 +1,242 @@
+package blobovniczatree
+
+import (
+	"fmt"
+	"path/filepath"
+	"sync"
+	"sync/atomic"
+
+	"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobovnicza"
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
+	"go.uber.org/zap"
+)
+
+// sharedDB is responsible for opening and closing a file of single blobovnicza.
+type sharedDB struct {
+	guard    *sync.RWMutex
+	blcza    *blobovnicza.Blobovnicza
+	refCount uint32
+
+	openDBCounter *openDBCounter
+	closedFlag    *atomic.Bool
+	options       []blobovnicza.Option
+	path          string
+	readOnly      bool
+	metrics       blobovnicza.Metrics
+	log           *logger.Logger
+}
+
+func newSharedDB(options []blobovnicza.Option, path string, readOnly bool,
+	metrics blobovnicza.Metrics, openDBCounter *openDBCounter, closedFlag *atomic.Bool, log *logger.Logger) *sharedDB {
+	return &sharedDB{
+		guard: &sync.RWMutex{},
+
+		options:       options,
+		path:          path,
+		readOnly:      readOnly,
+		metrics:       metrics,
+		closedFlag:    closedFlag,
+		log:           log,
+		openDBCounter: openDBCounter,
+	}
+}
+
+func (b *sharedDB) Open() (*blobovnicza.Blobovnicza, error) {
+	if b.closedFlag.Load() {
+		return nil, errClosed
+	}
+
+	b.guard.Lock()
+	defer b.guard.Unlock()
+
+	if b.refCount > 0 {
+		b.refCount++
+		return b.blcza, nil
+	}
+
+	blz := blobovnicza.New(append(b.options,
+		blobovnicza.WithReadOnly(b.readOnly),
+		blobovnicza.WithPath(b.path),
+		blobovnicza.WithMetrics(b.metrics),
+	)...)
+
+	if err := blz.Open(); err != nil {
+		return nil, fmt.Errorf("could not open blobovnicza %s: %w", b.path, err)
+	}
+	if err := blz.Init(); err != nil {
+		return nil, fmt.Errorf("could not init blobovnicza %s: %w", b.path, err)
+	}
+
+	b.refCount++
+	b.blcza = blz
+	b.openDBCounter.Inc()
+
+	return blz, nil
+}
+
+func (b *sharedDB) Close() {
+	b.guard.Lock()
+	defer b.guard.Unlock()
+
+	if b.refCount == 0 {
+		b.log.Error(logs.AttemtToCloseAlreadyClosedBlobovnicza, zap.String("id", b.path))
+		return
+	}
+
+	if b.refCount == 1 {
+		b.refCount = 0
+		if err := b.blcza.Close(); err != nil {
+			b.log.Error(logs.BlobovniczatreeCouldNotCloseBlobovnicza,
+				zap.String("id", b.path),
+				zap.String("error", err.Error()),
+			)
+		}
+		b.blcza = nil
+		b.openDBCounter.Dec()
+		return
+	}
+
+	b.refCount--
+}
+
+func (b *sharedDB) Path() string {
+	return b.path
+}
+
+// levelDbManager stores pointers of the sharedDB's for the leaf directory of the blobovnicza tree.
+type levelDbManager struct {
+	databases []*sharedDB
+}
+
+func newLevelDBManager(width uint64, options []blobovnicza.Option, rootPath string, lvlPath string,
+	readOnly bool, metrics blobovnicza.Metrics, openDBCounter *openDBCounter, closedFlog *atomic.Bool, log *logger.Logger) *levelDbManager {
+	result := &levelDbManager{
+		databases: make([]*sharedDB, width),
+	}
+	for idx := uint64(0); idx < width; idx++ {
+		result.databases[idx] = newSharedDB(options, filepath.Join(rootPath, lvlPath, u64ToHexString(idx)), readOnly, metrics, openDBCounter, closedFlog, log)
+	}
+	return result
+}
+
+func (m *levelDbManager) GetByIndex(idx uint64) *sharedDB {
+	return m.databases[idx]
+}
+
+// dbManager manages the opening and closing of blobovnicza instances.
+//
+// The blobovnicza opens at the first request, closes after the last request.
+type dbManager struct {
+	levelToManager      map[string]*levelDbManager
+	levelToManagerGuard *sync.RWMutex
+	closedFlag          *atomic.Bool
+	dbCounter           *openDBCounter
+
+	rootPath  string
+	options   []blobovnicza.Option
+	readOnly  bool
+	metrics   blobovnicza.Metrics
+	leafWidth uint64
+	log       *logger.Logger
+}
+
+func newDBManager(rootPath string, options []blobovnicza.Option, leafWidth uint64, readOnly bool, metrics blobovnicza.Metrics, log *logger.Logger) *dbManager {
+	return &dbManager{
+		rootPath:            rootPath,
+		options:             options,
+		readOnly:            readOnly,
+		metrics:             metrics,
+		leafWidth:           leafWidth,
+		levelToManager:      make(map[string]*levelDbManager),
+		levelToManagerGuard: &sync.RWMutex{},
+		log:                 log,
+		closedFlag:          &atomic.Bool{},
+		dbCounter:           newOpenDBCounter(),
+	}
+}
+
+func (m *dbManager) GetByPath(path string) *sharedDB {
+	lvlPath := filepath.Dir(path)
+	curIndex := u64FromHexString(filepath.Base(path))
+	levelManager := m.getLevelManager(lvlPath)
+	return levelManager.GetByIndex(curIndex)
+}
+
+func (m *dbManager) Open() {
+	m.closedFlag.Store(false)
+}
+
+func (m *dbManager) Close() {
+	m.closedFlag.Store(true)
+	m.dbCounter.WaitUntilAllClosed()
+}
+
+func (m *dbManager) getLevelManager(lvlPath string) *levelDbManager {
+	result := m.getLevelManagerIfExists(lvlPath)
+	if result != nil {
+		return result
+	}
+	return m.getOrCreateLevelManager(lvlPath)
+}
+
+func (m *dbManager) getLevelManagerIfExists(lvlPath string) *levelDbManager {
+	m.levelToManagerGuard.RLock()
+	defer m.levelToManagerGuard.RUnlock()
+
+	return m.levelToManager[lvlPath]
+}
+
+func (m *dbManager) getOrCreateLevelManager(lvlPath string) *levelDbManager {
+	m.levelToManagerGuard.Lock()
+	defer m.levelToManagerGuard.Unlock()
+
+	if result, ok := m.levelToManager[lvlPath]; ok {
+		return result
+	}
+
+	result := newLevelDBManager(m.leafWidth, m.options, m.rootPath, lvlPath, m.readOnly, m.metrics, m.dbCounter, m.closedFlag, m.log)
+	m.levelToManager[lvlPath] = result
+	return result
+}
+
+type openDBCounter struct {
+	cond  *sync.Cond
+	count uint64
+}
+
+func newOpenDBCounter() *openDBCounter {
+	return &openDBCounter{
+		cond: &sync.Cond{
+			L: &sync.Mutex{},
+		},
+	}
+}
+
+func (c *openDBCounter) Inc() {
+	c.cond.L.Lock()
+	defer c.cond.L.Unlock()
+
+	c.count++
+}
+
+func (c *openDBCounter) Dec() {
+	c.cond.L.Lock()
+	defer c.cond.L.Unlock()
+
+	if c.count > 0 {
+		c.count--
+	}
+
+	if c.count == 0 {
+		c.cond.Broadcast()
+	}
+}
+
+func (c *openDBCounter) WaitUntilAllClosed() {
+	c.cond.L.Lock()
+	for c.count > 0 {
+		c.cond.Wait()
+	}
+	c.cond.L.Unlock()
+}

pkg/local_object_storage/blobstor/blobovniczatree/metrics.go

@@ -7,7 +7,7 @@ import (
 )
 
 type Metrics interface {
-	Blobovnizca() blobovnicza.Metrics
+	Blobovnicza() blobovnicza.Metrics
 
 	SetParentID(parentID string)
 
@@ -33,6 +33,6 @@ func (m *noopMetrics) GetRange(time.Duration, int, bool, bool) {}
 func (m *noopMetrics) Get(time.Duration, int, bool, bool)      {}
 func (m *noopMetrics) Iterate(time.Duration, bool)             {}
 func (m *noopMetrics) Put(time.Duration, int, bool)            {}
-func (m *noopMetrics) Blobovnizca() blobovnicza.Metrics {
+func (m *noopMetrics) Blobovnicza() blobovnicza.Metrics {
 	return &blobovnicza.NoopMetrics{}
 }

pkg/local_object_storage/blobstor/blobovniczatree/option.go

@@ -17,6 +17,7 @@ type cfg struct {
 	openedCacheSize int
 	blzShallowDepth uint64
 	blzShallowWidth uint64
+	blzLeafWidth    uint64
 	compression     *compression.Config
 	blzOpts         []blobovnicza.Option
 	// reportError is the function called when encountering disk errors.
@@ -64,6 +65,12 @@ func WithBlobovniczaShallowWidth(width uint64) Option {
 	}
 }
 
+func WithBlobovniczaLeafWidth(w uint64) Option {
+	return func(c *cfg) {
+		c.blzLeafWidth = w
+	}
+}
+
 func WithBlobovniczaShallowDepth(depth uint64) Option {
 	return func(c *cfg) {
 		c.blzShallowDepth = depth

pkg/local_object_storage/blobstor/blobovniczatree/put.go

@@ -2,7 +2,6 @@ package blobovniczatree
 
 import (
 	"context"
-	"errors"
 	"path/filepath"
 	"time"
 
@@ -10,7 +9,6 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobovnicza"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobstor/common"
 	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
-	"go.etcd.io/bbolt"
 	"go.opentelemetry.io/otel/attribute"
 	"go.opentelemetry.io/otel/trace"
 	"go.uber.org/zap"
@@ -76,8 +74,8 @@ type putIterator struct {
 	PutPrm  blobovnicza.PutPrm
 }
 
-func (i *putIterator) iterate(ctx context.Context, path string) (bool, error) {
+func (i *putIterator) iterate(ctx context.Context, lvlPath string) (bool, error) {
-	active, err := i.B.getActivated(path)
+	active, err := i.B.activeDBManager.GetOpenedActiveDBForLevel(lvlPath)
 	if err != nil {
 		if !isLogical(err) {
 			i.B.reportError(logs.BlobovniczatreeCouldNotGetActiveBlobovnicza, err)
@@ -89,46 +87,29 @@ func (i *putIterator) iterate(ctx context.Context, path string) (bool, error) {
 		return false, nil
 	}
 
-	if _, err := active.blz.Put(ctx, i.PutPrm); err != nil {
+	if active == nil {
-		// Check if blobovnicza is full. We could either receive `blobovnicza.ErrFull` error
+		i.B.log.Debug(logs.BlobovniczatreeBlobovniczaOverflowed, zap.String("level", lvlPath))
-		// or update active blobovnicza in other thread. In the latter case the database will be closed
+		return false, nil
-		// and `updateActive` takes care of not updating the active blobovnicza twice.
+	}
-		if isFull := errors.Is(err, blobovnicza.ErrFull); isFull || errors.Is(err, bbolt.ErrDatabaseNotOpen) {
+	defer active.Close()
-			if isFull {
-				i.B.log.Debug(logs.BlobovniczatreeBlobovniczaOverflowed,
-					zap.String("path", filepath.Join(path, u64ToHexString(active.ind))))
-			}
 
-			if err := i.B.updateActive(path, &active.ind); err != nil {
+	i.AllFull = false
-				if !isLogical(err) {
-					i.B.reportError(logs.BlobovniczatreeCouldNotUpdateActiveBlobovnicza, err)
-				} else {
-					i.B.log.Debug(logs.BlobovniczatreeCouldNotUpdateActiveBlobovnicza,
-						zap.String("level", path),
-						zap.String("error", err.Error()))
-				}
 
-				return false, nil
+	_, err = active.Blobovnicza().Put(ctx, i.PutPrm)
-			}
+	if err != nil {
-
-			return i.iterate(ctx, path)
-		}
-
-		i.AllFull = false
 		if !isLogical(err) {
 			i.B.reportError(logs.BlobovniczatreeCouldNotPutObjectToActiveBlobovnicza, err)
 		} else {
 			i.B.log.Debug(logs.BlobovniczatreeCouldNotPutObjectToActiveBlobovnicza,
-				zap.String("path", filepath.Join(path, u64ToHexString(active.ind))),
+				zap.String("path", active.Path()),
 				zap.String("error", err.Error()))
 		}
 
 		return false, nil
 	}
 
-	path = filepath.Join(path, u64ToHexString(active.ind))
+	idx := u64FromHexString(filepath.Base(active.Path()))
-
+	i.ID = blobovnicza.NewIDFromBytes([]byte(filepath.Join(lvlPath, u64ToHexString(idx))))
-	i.ID = blobovnicza.NewIDFromBytes([]byte(path))
 
 	return true, nil
 }

pkg/local_object_storage/blobstor/memstore/memstore_test.go

@@ -7,16 +7,15 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/core/object"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobstor/common"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobstor/internal/blobstortest"
-	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger/test"
 	objectSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
 	"github.com/stretchr/testify/require"
-	"go.uber.org/zap"
 )
 
 func TestSimpleLifecycle(t *testing.T) {
 	s := New(
 		WithRootPath("memstore"),
-		WithLogger(&logger.Logger{Logger: zap.L()}),
+		WithLogger(test.NewLogger(t, true)),
 	)
 	t.Cleanup(func() { _ = s.Close() })
 	require.NoError(t, s.Open(false))

pkg/local_object_storage/engine/control_test.go

@@ -22,11 +22,10 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/shard/mode"
 	writecacheconfig "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/writecache/config"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/writecache/writecachebbolt"
-	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger/test"
 	cidtest "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id/test"
 	"github.com/stretchr/testify/require"
 	"go.etcd.io/bbolt"
-	"go.uber.org/zap"
 )
 
 // TestInitializationFailure checks that shard is initialized and closed even if media
@@ -54,7 +53,7 @@ func TestInitializationFailure(t *testing.T) {
 
 		return []shard.Option{
 			shard.WithID(sid),
-			shard.WithLogger(&logger.Logger{Logger: zap.L()}),
+			shard.WithLogger(test.NewLogger(t, true)),
 			shard.WithBlobStorOptions(
 				blobstor.WithStorages(storages)),
 			shard.WithMetaBaseOptions(
@@ -295,7 +294,7 @@ func engineWithShards(t *testing.T, path string, num int) (*StorageEngine, []str
 	te := testNewEngine(t).
 		setShardsNumOpts(t, num, func(id int) []shard.Option {
 			return []shard.Option{
-				shard.WithLogger(&logger.Logger{Logger: zap.L()}),
+				shard.WithLogger(test.NewLogger(t, true)),
 				shard.WithBlobStorOptions(
 					blobstor.WithStorages(newStorages(filepath.Join(addPath, strconv.Itoa(id)), errSmallSize))),
 				shard.WithMetaBaseOptions(

pkg/local_object_storage/engine/delete_test.go

@@ -6,14 +6,13 @@ import (
 
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/core/object"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/internal/testutil"
-	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger/test"
 	apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
 	cidtest "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id/test"
 	objectSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
 	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
 	oidtest "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id/test"
 	"github.com/stretchr/testify/require"
-	"go.uber.org/zap"
 )
 
 func TestDeleteBigObject(t *testing.T) {
@@ -54,7 +53,7 @@ func TestDeleteBigObject(t *testing.T) {
 	s3 := testNewShard(t, 3)
 
 	e := testNewEngine(t).setInitializedShards(t, s1, s2, s3).engine
-	e.log = &logger.Logger{Logger: zap.L()}
+	e.log = test.NewLogger(t, true)
 	defer e.Close()
 
 	for i := range children {

pkg/local_object_storage/engine/engine_test.go

@@ -15,14 +15,13 @@ import (
 	meta "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/metabase"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/pilorama"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/shard"
-	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger/test"
 	cidtest "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id/test"
 	objectSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
 	oidtest "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id/test"
 	"git.frostfs.info/TrueCloudLab/hrw"
 	"github.com/panjf2000/ants/v2"
 	"github.com/stretchr/testify/require"
-	"go.uber.org/zap"
 )
 
 type epochState struct{}
@@ -80,7 +79,7 @@ type testEngineWrapper struct {
 }
 
 func testNewEngine(t testing.TB, opts ...Option) *testEngineWrapper {
-	engine := New(WithLogger(&logger.Logger{Logger: zap.L()}))
+	engine := New(WithLogger(test.NewLogger(t, true)))
 	for _, opt := range opts {
 		opt(engine.cfg)
 	}
@@ -199,7 +198,7 @@ func testNewShard(t testing.TB, id int) *shard.Shard {
 
 func testDefaultShardOptions(t testing.TB, id int) []shard.Option {
 	return []shard.Option{
-		shard.WithLogger(&logger.Logger{Logger: zap.L()}),
+		shard.WithLogger(test.NewLogger(t, true)),
 		shard.WithBlobStorOptions(
 			blobstor.WithStorages(
 				newStorages(t.TempDir(), 1<<20))),

pkg/local_object_storage/engine/error_test.go

@@ -17,11 +17,10 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/pilorama"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/shard"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/shard/mode"
-	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger/test"
 	cidtest "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id/test"
 	objectSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
 	"github.com/stretchr/testify/require"
-	"go.uber.org/zap"
 )
 
 const errSmallSize = 256
@@ -56,7 +55,7 @@ func newEngineWithErrorThreshold(t testing.TB, dir string, errThreshold uint32)
 				largeFileStorage: largeFileStorage,
 			}
 			return []shard.Option{
-				shard.WithLogger(&logger.Logger{Logger: zap.L()}),
+				shard.WithLogger(test.NewLogger(t, true)),
 				shard.WithBlobStorOptions(blobstor.WithStorages(storages)),
 				shard.WithMetaBaseOptions(
 					meta.WithPath(filepath.Join(dir, fmt.Sprintf("%d.metabase", id))),

pkg/local_object_storage/engine/evacuate_test.go

@@ -16,12 +16,11 @@ import (
 	meta "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/metabase"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/shard"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/shard/mode"
-	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger/test"
 	cidtest "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id/test"
 	objectSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
 	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
 	"github.com/stretchr/testify/require"
-	"go.uber.org/zap"
 	"golang.org/x/sync/errgroup"
 )
 
@@ -31,7 +30,7 @@ func newEngineEvacuate(t *testing.T, shardNum int, objPerShard int) (*StorageEng
 	te := testNewEngine(t).
 		setShardsNumOpts(t, shardNum, func(id int) []shard.Option {
 			return []shard.Option{
-				shard.WithLogger(&logger.Logger{Logger: zap.L()}),
+				shard.WithLogger(test.NewLogger(t, true)),
 				shard.WithBlobStorOptions(
 					blobstor.WithStorages([]blobstor.SubStorage{{
 						Storage: fstree.New(

pkg/local_object_storage/engine/list_test.go

@@ -12,11 +12,10 @@ import (
 	meta "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/metabase"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/pilorama"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/shard"
-	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger/test"
 	cidtest "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id/test"
 	objectSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
 	"github.com/stretchr/testify/require"
-	"go.uber.org/zap"
 )
 
 func sortAddresses(addrWithType []object.AddressWithType) []object.AddressWithType {
@@ -66,7 +65,7 @@ func TestListWithCursor(t *testing.T) {
 			t.Parallel()
 			e := testNewEngine(t).setShardsNumOpts(t, tt.shardNum, func(id int) []shard.Option {
 				return []shard.Option{
-					shard.WithLogger(&logger.Logger{Logger: zap.L()}),
+					shard.WithLogger(test.NewLogger(t, true)),
 					shard.WithBlobStorOptions(
 						blobstor.WithStorages(
 							newStorages(t.TempDir(), 1<<20))),

pkg/local_object_storage/engine/tree.go

@@ -3,7 +3,7 @@ package engine
 import (
 	"context"
 	"errors"
-	"fmt"
+	"strconv"
 
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/pilorama"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/shard"
@@ -145,7 +145,7 @@ func (e *StorageEngine) TreeGetMeta(ctx context.Context, cid cidSDK.ID, treeID s
 		trace.WithAttributes(
 			attribute.String("container_id", cid.EncodeToString()),
 			attribute.String("tree_id", treeID),
-			attribute.String("node_id", fmt.Sprintf("%d", nodeID)),
+			attribute.String("node_id", strconv.FormatUint(nodeID, 10)),
 		),
 	)
 	defer span.End()
@@ -177,7 +177,7 @@ func (e *StorageEngine) TreeGetChildren(ctx context.Context, cid cidSDK.ID, tree
 		trace.WithAttributes(
 			attribute.String("container_id", cid.EncodeToString()),
 			attribute.String("tree_id", treeID),
-			attribute.String("node_id", fmt.Sprintf("%d", nodeID)),
+			attribute.String("node_id", strconv.FormatUint(nodeID, 10)),
 		),
 	)
 	defer span.End()
@@ -208,7 +208,7 @@ func (e *StorageEngine) TreeGetOpLog(ctx context.Context, cid cidSDK.ID, treeID
 		trace.WithAttributes(
 			attribute.String("container_id", cid.EncodeToString()),
 			attribute.String("tree_id", treeID),
-			attribute.String("height", fmt.Sprintf("%d", height)),
+			attribute.String("height", strconv.FormatUint(height, 10)),
 		),
 	)
 	defer span.End()
@@ -333,7 +333,7 @@ func (e *StorageEngine) TreeUpdateLastSyncHeight(ctx context.Context, cid cidSDK
 		trace.WithAttributes(
 			attribute.String("container_id", cid.EncodeToString()),
 			attribute.String("tree_id", treeID),
-			attribute.String("height", fmt.Sprintf("%d", height)),
+			attribute.String("height", strconv.FormatUint(height, 10)),
 		),
 	)
 	defer span.End()

pkg/local_object_storage/metabase/put_test.go

@@ -80,7 +80,7 @@ func BenchmarkPut(b *testing.B) {
 	})
 }
 
-func TestDB_PutBlobovnicaUpdate(t *testing.T) {
+func TestDB_PutBlobovniczaUpdate(t *testing.T) {
 	db := newDB(t)
 
 	raw1 := testutil.GenerateObject()

pkg/local_object_storage/metrics/blobovnicza.go

@@ -22,7 +22,7 @@ type blobovniczaTreeMetrics struct {
 	m       metrics_impl.BlobobvnizcaMetrics
 }
 
-func (m *blobovniczaTreeMetrics) Blobovnizca() blobovnicza.Metrics {
+func (m *blobovniczaTreeMetrics) Blobovnicza() blobovnicza.Metrics {
 	return &blobovniczaMetrics{
 		shardID: func() string { return m.shardID },
 		path:    m.path,
@@ -81,18 +81,26 @@ type blobovniczaMetrics struct {
 	path    string
 }
 
-func (m *blobovniczaMetrics) AddOpenBlobovnizcaSize(size uint64) {
+func (m *blobovniczaMetrics) AddOpenBlobovniczaSize(size uint64) {
-	m.m.AddOpenBlobovnizcaSize(m.shardID(), m.path, size)
+	m.m.AddOpenBlobovniczaSize(m.shardID(), m.path, size)
 }
 
-func (m *blobovniczaMetrics) SubOpenBlobovnizcaSize(size uint64) {
+func (m *blobovniczaMetrics) SubOpenBlobovniczaSize(size uint64) {
-	m.m.SubOpenBlobovnizcaSize(m.shardID(), m.path, size)
+	m.m.SubOpenBlobovniczaSize(m.shardID(), m.path, size)
 }
 
-func (m *blobovniczaMetrics) IncOpenBlobovnizcaCount() {
+func (m *blobovniczaMetrics) IncOpenBlobovniczaCount() {
-	m.m.IncOpenBlobovnizcaCount(m.shardID(), m.path)
+	m.m.IncOpenBlobovniczaCount(m.shardID(), m.path)
 }
 
-func (m *blobovniczaMetrics) DecOpenBlobovnizcaCount() {
+func (m *blobovniczaMetrics) DecOpenBlobovniczaCount() {
-	m.m.DecOpenBlobovnizcaCount(m.shardID(), m.path)
+	m.m.DecOpenBlobovniczaCount(m.shardID(), m.path)
+}
+
+func (m *blobovniczaMetrics) AddOpenBlobovniczaItems(items uint64) {
+	m.m.AddOpenBlobovniczaItems(m.shardID(), m.path, items)
+}
+
+func (m *blobovniczaMetrics) SubOpenBlobovniczaItems(items uint64) {
+	m.m.SubOpenBlobovniczaItems(m.shardID(), m.path, items)
 }

pkg/local_object_storage/pilorama/boltdb.go

@@ -9,6 +9,7 @@ import (
 	"math/rand"
 	"os"
 	"path/filepath"
+	"strconv"
 	"sync"
 	"time"
 
@@ -291,7 +292,7 @@ func (t *boltForest) TreeUpdateLastSyncHeight(ctx context.Context, cid cidSDK.ID
 		trace.WithAttributes(
 			attribute.String("container_id", cid.EncodeToString()),
 			attribute.String("tree_id", treeID),
-			attribute.String("height", fmt.Sprintf("%d", height)),
+			attribute.String("height", strconv.FormatUint(height, 10)),
 		),
 	)
 	defer span.End()
@@ -889,7 +890,7 @@ func (t *boltForest) TreeGetMeta(ctx context.Context, cid cidSDK.ID, treeID stri
 		trace.WithAttributes(
 			attribute.String("container_id", cid.EncodeToString()),
 			attribute.String("tree_id", treeID),
-			attribute.String("node_id", fmt.Sprintf("%d", nodeID)),
+			attribute.String("node_id", strconv.FormatUint(nodeID, 10)),
 		),
 	)
 	defer span.End()
@@ -937,7 +938,7 @@ func (t *boltForest) TreeGetChildren(ctx context.Context, cid cidSDK.ID, treeID
 		trace.WithAttributes(
 			attribute.String("container_id", cid.EncodeToString()),
 			attribute.String("tree_id", treeID),
-			attribute.String("node_id", fmt.Sprintf("%d", nodeID)),
+			attribute.String("node_id", strconv.FormatUint(nodeID, 10)),
 		),
 	)
 	defer span.End()
@@ -1046,7 +1047,7 @@ func (t *boltForest) TreeGetOpLog(ctx context.Context, cid cidSDK.ID, treeID str
 		trace.WithAttributes(
 			attribute.String("container_id", cid.EncodeToString()),
 			attribute.String("tree_id", treeID),
-			attribute.String("height", fmt.Sprintf("%d", height)),
+			attribute.String("height", strconv.FormatUint(height, 10)),
 		),
 	)
 	defer span.End()

pkg/local_object_storage/shard/control_test.go

@@ -19,7 +19,7 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/shard/mode"
 	writecacheconfig "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/writecache/config"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/writecache/writecachebbolt"
-	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger/test"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client"
 	apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
 	cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
@@ -30,7 +30,6 @@ import (
 	objecttest "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/test"
 	"github.com/stretchr/testify/require"
 	"go.etcd.io/bbolt"
-	"go.uber.org/zap"
 )
 
 type epochState struct{}
@@ -75,7 +74,7 @@ func TestShardOpen(t *testing.T) {
 	newShard := func() *Shard {
 		return New(
 			WithID(NewIDFromBytes([]byte{})),
-			WithLogger(&logger.Logger{Logger: zap.L()}),
+			WithLogger(test.NewLogger(t, true)),
 			WithBlobStorOptions(
 				blobstor.WithStorages([]blobstor.SubStorage{
 					{Storage: st},

pkg/local_object_storage/shard/delete_test.go

@@ -3,6 +3,7 @@ package shard_test
 import (
 	"context"
 	"testing"
+	"time"
 
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/core/object"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/internal/testutil"
@@ -56,8 +57,10 @@ func testShardDelete(t *testing.T, hasWriteCache bool) {
 		_, err = sh.Delete(context.TODO(), delPrm)
 		require.NoError(t, err)
 
-		_, err = sh.Get(context.Background(), getPrm)
+		require.Eventually(t, func() bool {
-		require.True(t, client.IsErrObjectNotFound(err))
+			_, err = sh.Get(context.Background(), getPrm)
+			return client.IsErrObjectNotFound(err)
+		}, time.Second, 50*time.Millisecond)
 	})
 
 	t.Run("small object", func(t *testing.T) {
@@ -80,7 +83,9 @@ func testShardDelete(t *testing.T, hasWriteCache bool) {
 		_, err = sh.Delete(context.Background(), delPrm)
 		require.NoError(t, err)
 
-		_, err = sh.Get(context.Background(), getPrm)
+		require.Eventually(t, func() bool {
-		require.True(t, client.IsErrObjectNotFound(err))
+			_, err = sh.Get(context.Background(), getPrm)
+			return client.IsErrObjectNotFound(err)
+		}, time.Second, 50*time.Millisecond)
 	})
 }

pkg/local_object_storage/shard/gc_internal_test.go

@@ -15,14 +15,13 @@ import (
 	meta "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/metabase"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/pilorama"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util"
-	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger/test"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client"
 	cidtest "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id/test"
 	objectSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
 	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
 	"github.com/panjf2000/ants/v2"
 	"github.com/stretchr/testify/require"
-	"go.uber.org/zap"
 )
 
 func Test_ObjectNotFoundIfNotDeletedFromMetabase(t *testing.T) {
@@ -31,14 +30,13 @@ func Test_ObjectNotFoundIfNotDeletedFromMetabase(t *testing.T) {
 	rootPath := t.TempDir()
 
 	var sh *Shard
-
+	l := test.NewLogger(t, true)
-	l := &logger.Logger{Logger: zap.L()}
 	blobOpts := []blobstor.Option{
-		blobstor.WithLogger(&logger.Logger{Logger: zap.L()}),
+		blobstor.WithLogger(test.NewLogger(t, true)),
 		blobstor.WithStorages([]blobstor.SubStorage{
 			{
 				Storage: blobovniczatree.NewBlobovniczaTree(
-					blobovniczatree.WithLogger(&logger.Logger{Logger: zap.L()}),
+					blobovniczatree.WithLogger(test.NewLogger(t, true)),
 					blobovniczatree.WithRootPath(filepath.Join(rootPath, "blob", "blobovnicza")),
 					blobovniczatree.WithBlobovniczaShallowDepth(1),
 					blobovniczatree.WithBlobovniczaShallowWidth(1)),

pkg/local_object_storage/shard/metrics_test.go

@@ -3,6 +3,7 @@ package shard_test
 import (
 	"context"
 	"path/filepath"
+	"sync"
 	"testing"
 
 	objectcore "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/core/object"
@@ -19,6 +20,7 @@ import (
 )
 
 type metricsStore struct {
+	mtx         sync.Mutex
 	objCounters map[string]uint64
 	cnrSize     map[string]int64
 	pldSize     int64
@@ -26,13 +28,40 @@ type metricsStore struct {
 	errCounter  int64
 }
 
-func (m metricsStore) SetShardID(_ string) {}
+func (m *metricsStore) SetShardID(_ string) {}
 
-func (m metricsStore) SetObjectCounter(objectType string, v uint64) {
+func (m *metricsStore) SetObjectCounter(objectType string, v uint64) {
+	m.mtx.Lock()
+	defer m.mtx.Unlock()
 	m.objCounters[objectType] = v
 }
 
-func (m metricsStore) AddToObjectCounter(objectType string, delta int) {
+func (m *metricsStore) getObjectCounter(objectType string) uint64 {
+	m.mtx.Lock()
+	defer m.mtx.Unlock()
+	return m.objCounters[objectType]
+}
+
+func (m *metricsStore) containerSizes() map[string]int64 {
+	m.mtx.Lock()
+	defer m.mtx.Unlock()
+
+	r := make(map[string]int64, len(m.cnrSize))
+	for c, s := range m.cnrSize {
+		r[c] = s
+	}
+	return r
+}
+
+func (m *metricsStore) payloadSize() int64 {
+	m.mtx.Lock()
+	defer m.mtx.Unlock()
+	return m.pldSize
+}
+
+func (m *metricsStore) AddToObjectCounter(objectType string, delta int) {
+	m.mtx.Lock()
+	defer m.mtx.Unlock()
 	switch {
 	case delta > 0:
 		m.objCounters[objectType] += uint64(delta)
@@ -49,35 +78,51 @@ func (m metricsStore) AddToObjectCounter(objectType string, delta int) {
 	}
 }
 
-func (m metricsStore) IncObjectCounter(objectType string) {
+func (m *metricsStore) IncObjectCounter(objectType string) {
+	m.mtx.Lock()
+	defer m.mtx.Unlock()
 	m.objCounters[objectType] += 1
 }
 
-func (m metricsStore) DecObjectCounter(objectType string) {
+func (m *metricsStore) DecObjectCounter(objectType string) {
+	m.mtx.Lock()
+	defer m.mtx.Unlock()
 	m.AddToObjectCounter(objectType, -1)
 }
 
 func (m *metricsStore) SetMode(mode mode.Mode) {
+	m.mtx.Lock()
+	defer m.mtx.Unlock()
 	m.mode = mode
 }
 
-func (m metricsStore) AddToContainerSize(cnr string, size int64) {
+func (m *metricsStore) AddToContainerSize(cnr string, size int64) {
+	m.mtx.Lock()
+	defer m.mtx.Unlock()
 	m.cnrSize[cnr] += size
 }
 
 func (m *metricsStore) AddToPayloadSize(size int64) {
+	m.mtx.Lock()
+	defer m.mtx.Unlock()
 	m.pldSize += size
 }
 
 func (m *metricsStore) IncErrorCounter() {
+	m.mtx.Lock()
+	defer m.mtx.Unlock()
 	m.errCounter += 1
 }
 
 func (m *metricsStore) ClearErrorCounter() {
+	m.mtx.Lock()
+	defer m.mtx.Unlock()
 	m.errCounter = 0
 }
 
 func (m *metricsStore) DeleteShardMetrics() {
+	m.mtx.Lock()
+	defer m.mtx.Unlock()
 	m.errCounter = 0
 }
 
@@ -102,10 +147,10 @@ func TestCounters(t *testing.T) {
 	}
 
 	t.Run("defaults", func(t *testing.T) {
-		require.Zero(t, mm.objCounters[physical])
+		require.Zero(t, mm.getObjectCounter(physical))
-		require.Zero(t, mm.objCounters[logical])
+		require.Zero(t, mm.getObjectCounter(logical))
-		require.Empty(t, mm.cnrSize)
+		require.Empty(t, mm.containerSizes())
-		require.Zero(t, mm.pldSize)
+		require.Zero(t, mm.payloadSize())
 	})
 
 	var totalPayload int64
@@ -128,10 +173,10 @@ func TestCounters(t *testing.T) {
 			require.NoError(t, err)
 		}
 
-		require.Equal(t, uint64(objNumber), mm.objCounters[physical])
+		require.Equal(t, uint64(objNumber), mm.getObjectCounter(physical))
-		require.Equal(t, uint64(objNumber), mm.objCounters[logical])
+		require.Equal(t, uint64(objNumber), mm.getObjectCounter(logical))
-		require.Equal(t, expectedSizes, mm.cnrSize)
+		require.Equal(t, expectedSizes, mm.containerSizes())
-		require.Equal(t, totalPayload, mm.pldSize)
+		require.Equal(t, totalPayload, mm.payloadSize())
 	})
 
 	t.Run("inhume_GC", func(t *testing.T) {
@@ -145,10 +190,10 @@ func TestCounters(t *testing.T) {
 			require.NoError(t, err)
 		}
 
-		require.Equal(t, uint64(objNumber), mm.objCounters[physical])
+		require.Equal(t, uint64(objNumber), mm.getObjectCounter(physical))
-		require.Equal(t, uint64(objNumber-inhumedNumber), mm.objCounters[logical])
+		require.Equal(t, uint64(objNumber-inhumedNumber), mm.getObjectCounter(logical))
-		require.Equal(t, expectedSizes, mm.cnrSize)
+		require.Equal(t, expectedSizes, mm.containerSizes())
-		require.Equal(t, totalPayload, mm.pldSize)
+		require.Equal(t, totalPayload, mm.payloadSize())
 
 		oo = oo[inhumedNumber:]
 	})
@@ -157,8 +202,8 @@ func TestCounters(t *testing.T) {
 		var prm shard.InhumePrm
 		ts := objectcore.AddressOf(testutil.GenerateObject())
 
-		phy := mm.objCounters[physical]
+		phy := mm.getObjectCounter(physical)
-		logic := mm.objCounters[logical]
+		logic := mm.getObjectCounter(logical)
 
 		inhumedNumber := int(phy / 4)
 		prm.SetTarget(ts, addrFromObjs(oo[:inhumedNumber])...)
@@ -166,10 +211,10 @@ func TestCounters(t *testing.T) {
 		_, err := sh.Inhume(context.Background(), prm)
 		require.NoError(t, err)
 
-		require.Equal(t, phy, mm.objCounters[physical])
+		require.Equal(t, phy, mm.getObjectCounter(physical))
-		require.Equal(t, logic-uint64(inhumedNumber), mm.objCounters[logical])
+		require.Equal(t, logic-uint64(inhumedNumber), mm.getObjectCounter(logical))
-		require.Equal(t, expectedSizes, mm.cnrSize)
+		require.Equal(t, expectedSizes, mm.containerSizes())
-		require.Equal(t, totalPayload, mm.pldSize)
+		require.Equal(t, totalPayload, mm.payloadSize())
 
 		oo = oo[inhumedNumber:]
 	})
@@ -177,8 +222,8 @@ func TestCounters(t *testing.T) {
 	t.Run("Delete", func(t *testing.T) {
 		var prm shard.DeletePrm
 
-		phy := mm.objCounters[physical]
+		phy := mm.getObjectCounter(physical)
-		logic := mm.objCounters[logical]
+		logic := mm.getObjectCounter(logical)
 
 		deletedNumber := int(phy / 4)
 		prm.SetAddresses(addrFromObjs(oo[:deletedNumber])...)
@@ -186,8 +231,8 @@ func TestCounters(t *testing.T) {
 		_, err := sh.Delete(context.Background(), prm)
 		require.NoError(t, err)
 
-		require.Equal(t, phy-uint64(deletedNumber), mm.objCounters[physical])
+		require.Equal(t, phy-uint64(deletedNumber), mm.getObjectCounter(physical))
-		require.Equal(t, logic-uint64(deletedNumber), mm.objCounters[logical])
+		require.Equal(t, logic-uint64(deletedNumber), mm.getObjectCounter(logical))
 		var totalRemovedpayload uint64
 		for i := range oo[:deletedNumber] {
 			removedPayload := oo[i].PayloadSize()
@@ -196,8 +241,8 @@ func TestCounters(t *testing.T) {
 			cnr, _ := oo[i].ContainerID()
 			expectedSizes[cnr.EncodeToString()] -= int64(removedPayload)
 		}
-		require.Equal(t, expectedSizes, mm.cnrSize)
+		require.Equal(t, expectedSizes, mm.containerSizes())
-		require.Equal(t, totalPayload-int64(totalRemovedpayload), mm.pldSize)
+		require.Equal(t, totalPayload-int64(totalRemovedpayload), mm.payloadSize())
 	})
 }
 

pkg/local_object_storage/shard/range_test.go

@@ -14,12 +14,11 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/shard"
 	writecacheconfig "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/writecache/config"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/writecache/writecachebbolt"
-	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger/test"
 	apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
 	objectSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
 	"github.com/nspcc-dev/neo-go/pkg/util/slice"
 	"github.com/stretchr/testify/require"
-	"go.uber.org/zap"
 )
 
 func TestShard_GetRange(t *testing.T) {
@@ -82,7 +81,7 @@ func testShardGetRange(t *testing.T, hasWriteCache bool) {
 		[]blobstor.Option{blobstor.WithStorages([]blobstor.SubStorage{
 			{
 				Storage: blobovniczatree.NewBlobovniczaTree(
-					blobovniczatree.WithLogger(&logger.Logger{Logger: zap.L()}),
+					blobovniczatree.WithLogger(test.NewLogger(t, true)),
 					blobovniczatree.WithRootPath(filepath.Join(t.TempDir(), "blob", "blobovnicza")),
 					blobovniczatree.WithBlobovniczaShallowDepth(1),
 					blobovniczatree.WithBlobovniczaShallowWidth(1)),

pkg/local_object_storage/shard/reload_test.go

@@ -11,7 +11,7 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobstor/fstree"
 	meta "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/metabase"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/pilorama"
-	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger/test"
 	checksumtest "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/checksum/test"
 	cidtest "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id/test"
 	objectSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
@@ -20,7 +20,6 @@ import (
 	usertest "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/user/test"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/version"
 	"github.com/stretchr/testify/require"
-	"go.uber.org/zap"
 )
 
 func TestShardReload(t *testing.T) {
@@ -28,8 +27,7 @@ func TestShardReload(t *testing.T) {
 
 	p := t.Name()
 	defer os.RemoveAll(p)
-
+	l := test.NewLogger(t, true)
-	l := &logger.Logger{Logger: zap.L()}
 	blobOpts := []blobstor.Option{
 		blobstor.WithLogger(l),
 		blobstor.WithStorages([]blobstor.SubStorage{

pkg/local_object_storage/shard/shard_test.go

@@ -16,12 +16,11 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/writecache/writecachebadger"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/writecache/writecachebbolt"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util"
-	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger/test"
 	objectSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
 	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
 	"github.com/panjf2000/ants/v2"
 	"github.com/stretchr/testify/require"
-	"go.uber.org/zap"
 )
 
 type epochState struct {
@@ -59,11 +58,11 @@ func newCustomShard(t testing.TB, rootPath string, enableWriteCache bool, wcOpts
 
 	if bsOpts == nil {
 		bsOpts = []blobstor.Option{
-			blobstor.WithLogger(&logger.Logger{Logger: zap.L()}),
+			blobstor.WithLogger(test.NewLogger(t, true)),
 			blobstor.WithStorages([]blobstor.SubStorage{
 				{
 					Storage: blobovniczatree.NewBlobovniczaTree(
-						blobovniczatree.WithLogger(&logger.Logger{Logger: zap.L()}),
+						blobovniczatree.WithLogger(test.NewLogger(t, true)),
 						blobovniczatree.WithRootPath(filepath.Join(rootPath, "blob", "blobovnicza")),
 						blobovniczatree.WithBlobovniczaShallowDepth(1),
 						blobovniczatree.WithBlobovniczaShallowWidth(1)),
@@ -81,7 +80,7 @@ func newCustomShard(t testing.TB, rootPath string, enableWriteCache bool, wcOpts
 
 	opts := []shard.Option{
 		shard.WithID(shard.NewIDFromBytes([]byte{})),
-		shard.WithLogger(&logger.Logger{Logger: zap.L()}),
+		shard.WithLogger(test.NewLogger(t, true)),
 		shard.WithBlobStorOptions(bsOpts...),
 		shard.WithMetaBaseOptions(
 			append([]meta.Option{
@@ -102,7 +101,7 @@ func newCustomShard(t testing.TB, rootPath string, enableWriteCache bool, wcOpts
 			require.NoError(t, err)
 			return pool
 		}),
-		shard.WithGCRemoverSleepInterval(1 * time.Millisecond),
+		shard.WithGCRemoverSleepInterval(100 * time.Millisecond),
 	}
 
 	sh = shard.New(opts...)

pkg/local_object_storage/shard/tree.go

@@ -2,7 +2,7 @@ package shard
 
 import (
 	"context"
-	"fmt"
+	"strconv"
 
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/pilorama"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/util/logicerr"
@@ -140,7 +140,7 @@ func (s *Shard) TreeGetMeta(ctx context.Context, cid cidSDK.ID, treeID string, n
 			attribute.String("shard_id", s.ID().String()),
 			attribute.String("container_id", cid.EncodeToString()),
 			attribute.String("tree_id", treeID),
-			attribute.String("node_id", fmt.Sprintf("%d", nodeID)),
+			attribute.String("node_id", strconv.FormatUint(nodeID, 10)),
 		),
 	)
 	defer span.End()
@@ -165,7 +165,7 @@ func (s *Shard) TreeGetChildren(ctx context.Context, cid cidSDK.ID, treeID strin
 			attribute.String("shard_id", s.ID().String()),
 			attribute.String("container_id", cid.EncodeToString()),
 			attribute.String("tree_id", treeID),
-			attribute.String("node_id", fmt.Sprintf("%d", nodeID)),
+			attribute.String("node_id", strconv.FormatUint(nodeID, 10)),
 		),
 	)
 	defer span.End()
@@ -190,7 +190,7 @@ func (s *Shard) TreeGetOpLog(ctx context.Context, cid cidSDK.ID, treeID string,
 			attribute.String("shard_id", s.ID().String()),
 			attribute.String("container_id", cid.EncodeToString()),
 			attribute.String("tree_id", treeID),
-			attribute.String("height", fmt.Sprintf("%d", height)),
+			attribute.String("height", strconv.FormatUint(height, 10)),
 		),
 	)
 	defer span.End()
@@ -309,7 +309,7 @@ func (s *Shard) TreeUpdateLastSyncHeight(ctx context.Context, cid cidSDK.ID, tre
 			attribute.String("shard_id", s.ID().String()),
 			attribute.String("container_id", cid.EncodeToString()),
 			attribute.String("tree_id", treeID),
-			attribute.String("height", fmt.Sprintf("%d", height)),
+			attribute.String("height", strconv.FormatUint(height, 10)),
 		),
 	)
 	defer span.End()

pkg/local_object_storage/writecache/writecachebadger/cachebadger.go

@@ -21,6 +21,10 @@ type cache struct {
 
 	// flushCh is a channel with objects to flush.
 	flushCh chan *objectSDK.Object
+	// scheduled4Flush contains objects scheduled for flush via flushCh
+	// helps to avoid multiple flushing of one object
+	scheduled4Flush    map[oid.Address]struct{}
+	scheduled4FlushMtx sync.RWMutex
 	// closeCh is close channel, protected by modeMtx.
 	closeCh chan struct{}
 	// wg is a wait group for flush workers.
@@ -47,8 +51,9 @@ const (
 // New creates new writecache instance.
 func New(opts ...Option) writecache.Cache {
 	c := &cache{
-		flushCh: make(chan *objectSDK.Object),
+		flushCh:         make(chan *objectSDK.Object),
-		mode:    mode.ReadWrite,
+		mode:            mode.ReadWrite,
+		scheduled4Flush: map[oid.Address]struct{}{},
 
 		options: options{
 			log:           &logger.Logger{Logger: zap.NewNop()},

pkg/local_object_storage/writecache/writecachebadger/delete.go

@@ -39,10 +39,10 @@ func (c *cache) Delete(ctx context.Context, addr oid.Address) error {
 		return writecache.ErrReadOnly
 	}
 
-	saddr := addr.EncodeToString()
+	key := addr2key(addr)
 
 	err := c.db.Update(func(tx *badger.Txn) error {
-		it, err := tx.Get([]byte(saddr))
+		it, err := tx.Get(key[:])
 		if err != nil {
 			if err == badger.ErrKeyNotFound {
 				return logicerr.Wrap(new(apistatus.ObjectNotFound))
@@ -51,10 +51,10 @@ func (c *cache) Delete(ctx context.Context, addr oid.Address) error {
 		}
 		if it.ValueSize() > 0 {
 			storageType = writecache.StorageTypeDB
-			err := tx.Delete([]byte(saddr))
+			err := tx.Delete(key[:])
 			if err == nil {
 				storagelog.Write(c.log,
-					storagelog.AddressField(saddr),
+					storagelog.AddressField(addr.EncodeToString()),
 					storagelog.StorageTypeField(wcStorageType),
 					storagelog.OpField("db DELETE"),
 				)

pkg/local_object_storage/writecache/writecachebadger/flush.go

@@ -18,7 +18,7 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	objectSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
 	"github.com/dgraph-io/badger/v4"
-	"github.com/mr-tron/base58"
+	"github.com/dgraph-io/ristretto/z"
 	"go.opentelemetry.io/otel/attribute"
 	"go.opentelemetry.io/otel/trace"
 	"go.uber.org/zap"
@@ -35,6 +35,65 @@ const (
 	defaultFlushInterval = time.Second
 )
 
+type collector struct {
+	cache     *cache
+	scheduled int
+	processed int
+	cancel    func()
+}
+
+func (c *collector) Send(buf *z.Buffer) error {
+	list, err := badger.BufferToKVList(buf)
+	if err != nil {
+		return err
+	}
+	for _, kv := range list.Kv {
+		select {
+		case <-c.cache.closeCh:
+			c.cancel()
+			return nil
+		default:
+		}
+		if kv.StreamDone {
+			return nil
+		}
+		if c.scheduled >= flushBatchSize {
+			c.cancel()
+			return nil
+		}
+		if got, want := len(kv.Key), len(internalKey{}); got != want {
+			c.cache.log.Debug(
+				fmt.Sprintf("not expected db key len: got %d, want %d", got, want))
+			continue
+		}
+		c.processed++
+		obj := objectSDK.New()
+		val := bytes.Clone(kv.Value)
+		if err = obj.Unmarshal(val); err != nil {
+			continue
+		}
+		addr := objectCore.AddressOf(obj)
+		c.cache.scheduled4FlushMtx.RLock()
+		_, ok := c.cache.scheduled4Flush[addr]
+		c.cache.scheduled4FlushMtx.RUnlock()
+		if ok {
+			c.cache.log.Debug(logs.WritecacheBadgerObjAlreadyScheduled, zap.Stringer("obj", addr))
+			continue
+		}
+		c.cache.scheduled4FlushMtx.Lock()
+		c.cache.scheduled4Flush[addr] = struct{}{}
+		c.cache.scheduled4FlushMtx.Unlock()
+		c.scheduled++
+		select {
+		case c.cache.flushCh <- obj:
+		case <-c.cache.closeCh:
+			c.cancel()
+			return nil
+		}
+	}
+	return nil
+}
+
 // runFlushLoop starts background workers which periodically flush objects to the blobstor.
 func (c *cache) runFlushLoop() {
 	for i := 0; i < c.workersCount; i++ {
@@ -62,17 +121,12 @@ func (c *cache) runFlushLoop() {
 }
 
 func (c *cache) flushSmallObjects() {
-	var lastKey internalKey
-	var m []objectInfo
 	for {
 		select {
 		case <-c.closeCh:
 			return
 		default:
 		}
-
-		m = m[:0]
-
 		c.modeMtx.RLock()
 		if c.readOnly() {
 			c.modeMtx.RUnlock()
@@ -86,61 +140,24 @@ func (c *cache) flushSmallObjects() {
 			c.modeMtx.RUnlock()
 			return
 		}
-
+		ctx, cancel := context.WithCancel(context.TODO())
-		_ = c.db.View(func(tx *badger.Txn) error {
+		coll := collector{
-			it := tx.NewIterator(badger.DefaultIteratorOptions)
+			cache:  c,
-			defer it.Close()
+			cancel: cancel,
-			if len(lastKey) == 0 {
-				it.Rewind()
-			} else {
-				it.Seek(lastKey[:])
-				if it.Valid() && bytes.Equal(it.Item().Key(), lastKey[:]) {
-					it.Next()
-				}
-			}
-			for ; it.Valid() && len(m) < flushBatchSize; it.Next() {
-				if got, want := int(it.Item().KeySize()), len(lastKey); got != want {
-					return fmt.Errorf("invalid db key len: got %d, want %d", got, want)
-				}
-				it.Item().KeyCopy(lastKey[:])
-				value, err := it.Item().ValueCopy(nil)
-				if err != nil {
-					return err
-				}
-				m = append(m, objectInfo{
-					addr: lastKey.address(),
-					data: value,
-				})
-			}
-			return nil
-		})
-
-		var count int
-		for i := range m {
-			obj := objectSDK.New()
-			if err := obj.Unmarshal(m[i].data); err != nil {
-				continue
-			}
-
-			count++
-			select {
-			case c.flushCh <- obj:
-			case <-c.closeCh:
-				c.modeMtx.RUnlock()
-				return
-			}
 		}
-
+		stream := c.db.NewStream()
-		if count == 0 {
+		// All calls to Send are done by a single goroutine
-			c.modeMtx.RUnlock()
+		stream.Send = coll.Send
+		if err := stream.Orchestrate(ctx); err != nil {
+			c.log.Debug(fmt.Sprintf(
+				"error during flushing object from wc: %s", err))
+		}
+		c.modeMtx.RUnlock()
+		if coll.scheduled == 0 {
 			break
 		}
-
-		c.modeMtx.RUnlock()
-
 		c.log.Debug(logs.WritecacheTriedToFlushItemsFromWritecache,
-			zap.Int("count", count),
+			zap.Int("scheduled", coll.scheduled), zap.Int("processed", coll.processed))
-			zap.String("start", base58.Encode(lastKey[:])))
 	}
 }
 
@@ -167,13 +184,14 @@ func (c *cache) workerFlushSmall() {
 			return
 		}
 
+		addr := objectCore.AddressOf(obj)
 		err := c.flushObject(context.TODO(), obj, nil, writecache.StorageTypeDB)
-		if err != nil {
+		if err == nil {
-			// Error is handled in flushObject.
+			c.deleteFromDB([]internalKey{addr2key(addr)})
-			continue
 		}
-
+		c.scheduled4FlushMtx.Lock()
-		c.deleteFromDB([]string{objectCore.AddressOf(obj).EncodeToString()})
+		delete(c.scheduled4Flush, addr)
+		c.scheduled4FlushMtx.Unlock()
 	}
 }
 

pkg/local_object_storage/writecache/writecachebadger/flush_test.go

@@ -10,18 +10,17 @@ import (
 	meta "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/metabase"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/writecache"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/writecache/writecachetest"
-	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger/test"
 	oidtest "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id/test"
 	"github.com/dgraph-io/badger/v4"
 	"github.com/stretchr/testify/require"
-	"go.uber.org/zap"
 )
 
 func TestFlush(t *testing.T) {
 	createCacheFn := func(t *testing.T, smallSize uint64, mb *meta.DB, bs writecache.MainStorage, opts ...Option) writecache.Cache {
 		return New(
 			append([]Option{
-				WithLogger(&logger.Logger{Logger: zap.L()}),
+				WithLogger(test.NewLogger(t, true)),
 				WithPath(filepath.Join(t.TempDir(), "writecache")),
 				WithMetabase(mb),
 				WithBlobstor(bs),
@@ -53,8 +52,9 @@ func TestFlush(t *testing.T) {
 			Desc: "db, invalid object",
 			InjectFn: func(t *testing.T, wc writecache.Cache) {
 				c := wc.(*cache)
+				key := addr2key(oidtest.Address())
 				require.NoError(t, c.db.Update(func(tx *badger.Txn) error {
-					return tx.Set([]byte(oidtest.Address().EncodeToString()), []byte{1, 2, 3})
+					return tx.Set(key[:], []byte{1, 2, 3})
 				}))
 			},
 		},

pkg/local_object_storage/writecache/writecachebadger/generic_test.go

@@ -5,14 +5,13 @@ import (
 	"time"
 
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/internal/storagetest"
-	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger/test"
-	"go.uber.org/zap"
 )
 
 func TestGeneric(t *testing.T) {
 	storagetest.TestAll(t, func(t *testing.T) storagetest.Component {
 		return New(
-			WithLogger(&logger.Logger{Logger: zap.L()}),
+			WithLogger(test.NewLogger(t, true)),
 			WithFlushWorkersCount(2),
 			WithPath(t.TempDir()),
 			WithGCInterval(1*time.Second))

pkg/local_object_storage/writecache/writecachebadger/storage.go

@@ -58,7 +58,7 @@ func (c *cache) openStore(readOnly bool) error {
 	return nil
 }
 
-func (c *cache) deleteFromDB(keys []string) []string {
+func (c *cache) deleteFromDB(keys []internalKey) []internalKey {
 	if len(keys) == 0 {
 		return keys
 	}
@@ -67,7 +67,7 @@ func (c *cache) deleteFromDB(keys []string) []string {
 
 	var errorIndex int
 	for errorIndex = range keys {
-		if err := wb.Delete([]byte(keys[errorIndex])); err != nil {
+		if err := wb.Delete(keys[errorIndex][:]); err != nil {
 			break
 		}
 	}

pkg/local_object_storage/writecache/writecachebbolt/flush_test.go

@@ -13,18 +13,17 @@ import (
 	meta "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/metabase"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/writecache"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/writecache/writecachetest"
-	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger/test"
 	oidtest "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id/test"
 	"github.com/stretchr/testify/require"
 	"go.etcd.io/bbolt"
-	"go.uber.org/zap"
 )
 
 func TestFlush(t *testing.T) {
 	createCacheFn := func(t *testing.T, smallSize uint64, mb *meta.DB, bs writecache.MainStorage, opts ...Option) writecache.Cache {
 		return New(
 			append([]Option{
-				WithLogger(&logger.Logger{Logger: zap.L()}),
+				WithLogger(test.NewLogger(t, true)),
 				WithPath(filepath.Join(t.TempDir(), "writecache")),
 				WithSmallObjectSize(smallSize),
 				WithMetabase(mb),

pkg/local_object_storage/writecache/writecachebbolt/generic_test.go

@@ -4,14 +4,13 @@ import (
 	"testing"
 
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/internal/storagetest"
-	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger/test"
-	"go.uber.org/zap"
 )
 
 func TestGeneric(t *testing.T) {
 	storagetest.TestAll(t, func(t *testing.T) storagetest.Component {
 		return New(
-			WithLogger(&logger.Logger{Logger: zap.L()}),
+			WithLogger(test.NewLogger(t, true)),
 			WithFlushWorkersCount(2),
 			WithPath(t.TempDir()))
 	})

pkg/metrics/blobovnicza.go

@@ -15,64 +15,74 @@ type BlobobvnizcaMetrics interface {
 	AddBlobobvnizcaTreePut(shardID, path string, size int)
 	AddBlobobvnizcaTreeGet(shardID, path string, size int)
 
-	AddOpenBlobovnizcaSize(shardID, path string, size uint64)
+	AddOpenBlobovniczaSize(shardID, path string, size uint64)
-	SubOpenBlobovnizcaSize(shardID, path string, size uint64)
+	SubOpenBlobovniczaSize(shardID, path string, size uint64)
 
-	IncOpenBlobovnizcaCount(shardID, path string)
+	AddOpenBlobovniczaItems(shardID, path string, items uint64)
-	DecOpenBlobovnizcaCount(shardID, path string)
+	SubOpenBlobovniczaItems(shardID, path string, items uint64)
+
+	IncOpenBlobovniczaCount(shardID, path string)
+	DecOpenBlobovniczaCount(shardID, path string)
 }
 
-type blobovnizca struct {
+type blobovnicza struct {
 	treeMode        *shardIDPathModeValue
 	treeReqDuration *prometheus.HistogramVec
 	treePut         *prometheus.CounterVec
 	treeGet         *prometheus.CounterVec
 	treeOpenSize    *prometheus.GaugeVec
+	treeOpenItems   *prometheus.GaugeVec
 	treeOpenCounter *prometheus.GaugeVec
 }
 
-func newBlobovnizca() *blobovnizca {
+func newBlobovnicza() *blobovnicza {
-	return &blobovnizca{
+	return &blobovnicza{
-		treeMode: newShardIDPathMode(blobovniczaTreeSubSystem, "mode", "Blobovnizca tree mode"),
+		treeMode: newShardIDPathMode(blobovniczaTreeSubSystem, "mode", "Blobovnicza tree mode"),
 
 		treeReqDuration: metrics.NewHistogramVec(prometheus.HistogramOpts{
 			Namespace: namespace,
 			Subsystem: blobovniczaTreeSubSystem,
 			Name:      "request_duration_seconds",
-			Help:      "Accumulated Blobovnizca tree request process duration",
+			Help:      "Accumulated Blobovnicza tree request process duration",
 		}, []string{shardIDLabel, pathLabel, successLabel, methodLabel, withStorageIDLabel}),
 		treePut: metrics.NewCounterVec(prometheus.CounterOpts{
 			Namespace: namespace,
 			Subsystem: blobovniczaTreeSubSystem,
 			Name:      "put_bytes",
-			Help:      "Accumulated payload size written to Blobovnizca tree",
+			Help:      "Accumulated payload size written to Blobovnicza tree",
 		}, []string{shardIDLabel, pathLabel}),
 		treeGet: metrics.NewCounterVec(prometheus.CounterOpts{
 			Namespace: namespace,
 			Subsystem: blobovniczaTreeSubSystem,
 			Name:      "get_bytes",
-			Help:      "Accumulated payload size read from Blobovnizca tree",
+			Help:      "Accumulated payload size read from Blobovnicza tree",
 		}, []string{shardIDLabel, pathLabel}),
 		treeOpenSize: metrics.NewGaugeVec(prometheus.GaugeOpts{
 			Namespace: namespace,
 			Subsystem: blobovniczaTreeSubSystem,
-			Name:      "open_blobovnizca_size_bytes",
+			Name:      "open_blobovnicza_size_bytes",
-			Help:      "Size of opened blobovnizcas of Blobovnizca tree",
+			Help:      "Size of opened blobovniczas of Blobovnicza tree",
+		}, []string{shardIDLabel, pathLabel}),
+		treeOpenItems: metrics.NewGaugeVec(prometheus.GaugeOpts{
+			Namespace: namespace,
+			Subsystem: blobovniczaTreeSubSystem,
+			Name:      "open_blobovnicza_items_total",
+			Help:      "Count of items in opened blobovniczas of Blobovnicza tree",
 		}, []string{shardIDLabel, pathLabel}),
 		treeOpenCounter: metrics.NewGaugeVec(prometheus.GaugeOpts{
 			Namespace: namespace,
 			Subsystem: blobovniczaTreeSubSystem,
-			Name:      "open_blobovnizca_count",
+			Name:      "open_blobovnicza_count",
-			Help:      "Count of opened blobovnizcas of Blobovnizca tree",
+			Help:      "Count of opened blobovniczas of Blobovnicza tree",
 		}, []string{shardIDLabel, pathLabel}),
 	}
 }
 
-func (b *blobovnizca) SetBlobobvnizcaTreeMode(shardID, path string, readOnly bool) {
+func (b *blobovnicza) SetBlobobvnizcaTreeMode(shardID, path string, readOnly bool) {
 	b.treeMode.SetMode(shardID, path, modeFromBool(readOnly))
 }
 
-func (b *blobovnizca) CloseBlobobvnizcaTree(shardID, path string) {
+func (b *blobovnicza) CloseBlobobvnizcaTree(shardID, path string) {
 	b.treeMode.SetMode(shardID, path, closedMode)
 	b.treeReqDuration.DeletePartialMatch(prometheus.Labels{
 		shardIDLabel: shardID,
@@ -88,7 +98,7 @@ func (b *blobovnizca) CloseBlobobvnizcaTree(shardID, path string) {
 	})
 }
 
-func (b *blobovnizca) BlobobvnizcaTreeMethodDuration(shardID, path string, method string, d time.Duration, success bool, withStorageID NullBool) {
+func (b *blobovnicza) BlobobvnizcaTreeMethodDuration(shardID, path string, method string, d time.Duration, success bool, withStorageID NullBool) {
 	b.treeReqDuration.With(prometheus.Labels{
 		shardIDLabel:       shardID,
 		pathLabel:          path,
@@ -98,44 +108,58 @@ func (b *blobovnizca) BlobobvnizcaTreeMethodDuration(shardID, path string, metho
 	}).Observe(d.Seconds())
 }
 
-func (b *blobovnizca) AddBlobobvnizcaTreePut(shardID, path string, size int) {
+func (b *blobovnicza) AddBlobobvnizcaTreePut(shardID, path string, size int) {
 	b.treePut.With(prometheus.Labels{
 		shardIDLabel: shardID,
 		pathLabel:    path,
 	}).Add(float64(size))
 }
 
-func (b *blobovnizca) AddBlobobvnizcaTreeGet(shardID, path string, size int) {
+func (b *blobovnicza) AddBlobobvnizcaTreeGet(shardID, path string, size int) {
 	b.treeGet.With(prometheus.Labels{
 		shardIDLabel: shardID,
 		pathLabel:    path,
 	}).Add(float64(size))
 }
 
-func (b *blobovnizca) AddOpenBlobovnizcaSize(shardID, path string, size uint64) {
+func (b *blobovnicza) AddOpenBlobovniczaSize(shardID, path string, size uint64) {
 	b.treeOpenSize.With(prometheus.Labels{
 		shardIDLabel: shardID,
 		pathLabel:    path,
 	}).Add(float64(size))
 }
 
-func (b *blobovnizca) SubOpenBlobovnizcaSize(shardID, path string, size uint64) {
+func (b *blobovnicza) SubOpenBlobovniczaSize(shardID, path string, size uint64) {
 	b.treeOpenSize.With(prometheus.Labels{
 		shardIDLabel: shardID,
 		pathLabel:    path,
 	}).Sub(float64(size))
 }
 
-func (b *blobovnizca) IncOpenBlobovnizcaCount(shardID, path string) {
+func (b *blobovnicza) IncOpenBlobovniczaCount(shardID, path string) {
 	b.treeOpenCounter.With(prometheus.Labels{
 		shardIDLabel: shardID,
 		pathLabel:    path,
 	}).Inc()
 }
 
-func (b *blobovnizca) DecOpenBlobovnizcaCount(shardID, path string) {
+func (b *blobovnicza) DecOpenBlobovniczaCount(shardID, path string) {
 	b.treeOpenCounter.With(prometheus.Labels{
 		shardIDLabel: shardID,
 		pathLabel:    path,
 	}).Dec()
 }
+
+func (b *blobovnicza) AddOpenBlobovniczaItems(shardID, path string, items uint64) {
+	b.treeOpenItems.With(prometheus.Labels{
+		shardIDLabel: shardID,
+		pathLabel:    path,
+	}).Add(float64(items))
+}
+
+func (b *blobovnicza) SubOpenBlobovniczaItems(shardID, path string, items uint64) {
+	b.treeOpenItems.With(prometheus.Labels{
+		shardIDLabel: shardID,
+		pathLabel:    path,
+	}).Sub(float64(items))
+}

pkg/metrics/node.go

@@ -14,7 +14,7 @@ type NodeMetrics struct {
 	epoch         prometheus.Gauge
 	fstree        *fstreeMetrics
 	blobstore     *blobstoreMetrics
-	blobobvnizca  *blobovnizca
+	blobobvnizca  *blobovnicza
 	metabase      *metabaseMetrics
 	pilorama      *piloramaMetrics
 	grpc          *grpcServerMetrics
@@ -35,7 +35,7 @@ func NewNodeMetrics() *NodeMetrics {
 		}),
 		fstree:       newFSTreeMetrics(),
 		blobstore:    newBlobstoreMetrics(),
-		blobobvnizca: newBlobovnizca(),
+		blobobvnizca: newBlobovnicza(),
 		metabase:     newMetabaseMetrics(),
 		pilorama:     newPiloramaMetrics(),
 		grpc:         newGrpcServerMetrics(),

pkg/morph/client/container/client.go

@@ -29,6 +29,7 @@ const (
 	containersOfMethod = "containersOf"
 	eaclMethod         = "eACL"
 	setEACLMethod      = "setEACL"
+	deletionInfoMethod = "deletionInfo"
 
 	startEstimationMethod = "startContainerEstimation"
 	stopEstimationMethod  = "stopContainerEstimation"

pkg/morph/client/container/deletion_info.go

@@ -0,0 +1,68 @@
+package container
+
+import (
+	"crypto/sha256"
+	"fmt"
+	"strings"
+
+	containerContract "git.frostfs.info/TrueCloudLab/frostfs-contract/container"
+	containercore "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/core/container"
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/morph/client"
+	apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
+	cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
+)
+
+func (x *containerSource) DeletionInfo(cnr cid.ID) (*containercore.DelInfo, error) {
+	return DeletionInfo((*Client)(x), cnr)
+}
+
+type deletionInfo interface {
+	DeletionInfo(cid []byte) (*containercore.DelInfo, error)
+}
+
+func DeletionInfo(c deletionInfo, cnr cid.ID) (*containercore.DelInfo, error) {
+	binCnr := make([]byte, sha256.Size)
+	cnr.Encode(binCnr)
+
+	return c.DeletionInfo(binCnr)
+}
+
+func (c *Client) DeletionInfo(cid []byte) (*containercore.DelInfo, error) {
+	prm := client.TestInvokePrm{}
+	prm.SetMethod(deletionInfoMethod)
+	prm.SetArgs(cid)
+
+	res, err := c.client.TestInvoke(prm)
+	if err != nil {
+		if strings.Contains(err.Error(), containerContract.NotFoundError) {
+			return nil, new(apistatus.ContainerNotFound)
+		}
+		return nil, fmt.Errorf("could not perform test invocation (%s): %w", deletionInfoMethod, err)
+	} else if ln := len(res); ln != 1 {
+		return nil, fmt.Errorf("unexpected stack item count (%s): %d", deletionInfoMethod, ln)
+	}
+
+	arr, err := client.ArrayFromStackItem(res[0])
+	if err != nil {
+		return nil, fmt.Errorf("could not get item array of container (%s): %w", deletionInfoMethod, err)
+	}
+
+	if len(arr) != 2 {
+		return nil, fmt.Errorf("unexpected container stack item count (%s): %d", deletionInfoMethod, len(arr))
+	}
+
+	owner, err := client.BytesFromStackItem(arr[0])
+	if err != nil {
+		return nil, fmt.Errorf("could not get byte array of container (%s): %w", deletionInfoMethod, err)
+	}
+
+	epoch, err := client.IntFromStackItem(arr[1])
+	if err != nil {
+		return nil, fmt.Errorf("could not get byte array of container signature (%s): %w", deletionInfoMethod, err)
+	}
+
+	return &containercore.DelInfo{
+		Owner: owner,
+		Epoch: int(epoch),
+	}, nil
+}

pkg/services/object/acl/v2/service.go

@@ -9,6 +9,7 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/session"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/core/container"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/core/netmap"
+	objectCore "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/core/object"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/object"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
 	apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
@@ -24,7 +25,7 @@ import (
 type Service struct {
 	*cfg
 
-	c senderClassifier
+	c objectCore.SenderClassifier
 }
 
 type putStreamBasicChecker struct {
@@ -95,11 +96,7 @@ func New(next object.ServiceServer,
 
 	return Service{
 		cfg: cfg,
-		c: senderClassifier{
+		c:   objectCore.NewSenderClassifier(cfg.irFetcher, cfg.nm, cfg.log),
-			log:       cfg.log,
-			innerRing: cfg.irFetcher,
-			netmap:    cfg.nm,
-		},
 	}
 }
 
@@ -652,20 +649,24 @@ func (b Service) findRequestInfo(req MetaWithToken, idCnr cid.ID, op acl.Op) (in
 	}
 
 	// find request role and key
-	res, err := b.c.classify(req, idCnr, cnr.Value)
+	ownerID, ownerKey, err := req.RequestOwner()
+	if err != nil {
+		return info, err
+	}
+	res, err := b.c.Classify(ownerID, ownerKey, idCnr, cnr.Value)
 	if err != nil {
 		return info, err
 	}
 
 	info.basicACL = cnr.Value.BasicACL()
-	info.requestRole = res.role
+	info.requestRole = res.Role
 	info.operation = op
 	info.cnrOwner = cnr.Value.Owner()
 	info.idCnr = idCnr
 
 	// it is assumed that at the moment the key will be valid,
 	// otherwise the request would not pass validation
-	info.senderKey = res.key
+	info.senderKey = res.Key
 
 	// add bearer token if it is present in request
 	info.bearer = req.bearer

pkg/services/object/delete/container.go

@@ -1,7 +0,0 @@
-package deletesvc
-
-import "git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
-
-func (exec *execCtx) executeOnContainer() {
-	exec.log.Debug(logs.DeleteRequestIsNotRolledOverToTheContainer)
-}

pkg/services/object/delete/delete.go

@@ -29,33 +29,17 @@ func (s *Service) Delete(ctx context.Context, prm Prm) error {
 
 	exec.setLogger(s.log)
 
-	exec.execute(ctx)
+	return exec.execute(ctx)
-
-	return exec.statusError.err
 }
 
-func (exec *execCtx) execute(ctx context.Context) {
+func (exec *execCtx) execute(ctx context.Context) error {
 	exec.log.Debug(logs.ServingRequest)
 
-	// perform local operation
+	if err := exec.executeLocal(ctx); err != nil {
-	exec.executeLocal(ctx)
+		exec.log.Debug(logs.OperationFinishedWithError, zap.String("error", err.Error()))
-
+		return err
-	exec.analyzeStatus(true)
-}
-
-func (exec *execCtx) analyzeStatus(execCnr bool) {
-	// analyze local result
-	switch exec.status {
-	case statusOK:
-		exec.log.Debug(logs.OperationFinishedSuccessfully)
-	default:
-		exec.log.Debug(logs.OperationFinishedWithError,
-			zap.String("error", exec.err.Error()),
-		)
-
-		if execCnr {
-			exec.executeOnContainer()
-			exec.analyzeStatus(false)
-		}
 	}
+
+	exec.log.Debug(logs.OperationFinishedSuccessfully)
+	return nil
 }

pkg/services/object/delete/exec.go

@@ -2,6 +2,7 @@ package deletesvc
 
 import (
 	"context"
+	"fmt"
 	"strconv"
 
 	objectV2 "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/object"
@@ -15,18 +16,11 @@ import (
 	"go.uber.org/zap"
 )
 
-type statusError struct {
-	status int
-	err    error
-}
-
 type execCtx struct {
 	svc *Service
 
 	prm Prm
 
-	statusError
-
 	log *logger.Logger
 
 	tombstone *objectSDK.Tombstone
@@ -36,11 +30,6 @@ type execCtx struct {
 	tombstoneObj *objectSDK.Object
 }
 
-const (
-	statusUndefined int = iota
-	statusOK
-)
-
 func (exec *execCtx) setLogger(l *logger.Logger) {
 	exec.log = &logger.Logger{Logger: l.With(
 		zap.String("request", "DELETE"),
@@ -75,48 +64,34 @@ func (exec *execCtx) newAddress(id oid.ID) oid.Address {
 	return a
 }
 
-func (exec *execCtx) formSplitInfo(ctx context.Context) bool {
+func (exec *execCtx) formSplitInfo(ctx context.Context) error {
-	success := false
-
 	var err error
 	exec.splitInfo, err = exec.svc.header.splitInfo(ctx, exec)
-
+	if err != nil && !apiclient.IsErrObjectAlreadyRemoved(err) {
-	switch {
-	default:
-		exec.status = statusUndefined
-		exec.err = err
-
-		exec.log.Debug(logs.DeleteCouldNotComposeSplitInfo,
-			zap.String("error", err.Error()),
-		)
-	case err == nil, apiclient.IsErrObjectAlreadyRemoved(err):
 		// IsErrObjectAlreadyRemoved check is required because splitInfo
 		// implicitly performs Head request that may return ObjectAlreadyRemoved
-		// status that is not specified for Delete
+		// status that is not specified for Delete.
-
+		return err
-		exec.status = statusOK
-		exec.err = nil
-		success = true
 	}
 
-	return success
+	return nil
 }
 
-func (exec *execCtx) collectMembers(ctx context.Context) (ok bool) {
+func (exec *execCtx) collectMembers(ctx context.Context) error {
 	if exec.splitInfo == nil {
 		exec.log.Debug(logs.DeleteNoSplitInfoObjectIsPHY)
-		return true
+		return nil
 	}
 
+	var err error
 	if _, withLink := exec.splitInfo.Link(); withLink {
-		ok = exec.collectChildren(ctx)
+		err = exec.collectChildren(ctx)
 	}
 
-	if !ok {
+	if err != nil {
 		if _, withLast := exec.splitInfo.LastPart(); withLast {
-			ok = exec.collectChain(ctx)
+			if err := exec.collectChain(ctx); err != nil {
-			if !ok {
+				return err
-				return
 			}
 		}
 	} // may be fail if neither right nor linking ID is set?
@@ -124,7 +99,7 @@ func (exec *execCtx) collectMembers(ctx context.Context) (ok bool) {
 	return exec.supplementBySplitID(ctx)
 }
 
-func (exec *execCtx) collectChain(ctx context.Context) bool {
+func (exec *execCtx) collectChain(ctx context.Context) error {
 	var chain []oid.ID
 
 	exec.log.Debug(logs.DeleteAssemblingChain)
@@ -133,84 +108,43 @@ func (exec *execCtx) collectChain(ctx context.Context) bool {
 		chain = append(chain, prev)
 
 		p, err := exec.svc.header.previous(ctx, exec, prev)
+		if err != nil {
+			return fmt.Errorf("get previous split element for %s: %w", prev, err)
+		}
 
-		switch {
+		withPrev = p != nil
-		default:
+		if withPrev {
-			exec.status = statusUndefined
+			prev = *p
-			exec.err = err
-
-			exec.log.Debug(logs.DeleteCouldNotGetPreviousSplitElement,
-				zap.Stringer("id", prev),
-				zap.String("error", err.Error()),
-			)
-
-			return false
-		case err == nil:
-			exec.status = statusOK
-			exec.err = nil
-
-			withPrev = p != nil
-			if withPrev {
-				prev = *p
-			}
 		}
 	}
 
 	exec.addMembers(chain)
-
+	return nil
-	return true
 }
 
-func (exec *execCtx) collectChildren(ctx context.Context) bool {
+func (exec *execCtx) collectChildren(ctx context.Context) error {
 	exec.log.Debug(logs.DeleteCollectingChildren)
 
 	children, err := exec.svc.header.children(ctx, exec)
-
+	if err != nil {
-	switch {
+		return fmt.Errorf("collect children: %w", err)
-	default:
-		exec.status = statusUndefined
-		exec.err = err
-
-		exec.log.Debug(logs.DeleteCouldNotCollectObjectChildren,
-			zap.String("error", err.Error()),
-		)
-
-		return false
-	case err == nil:
-		exec.status = statusOK
-		exec.err = nil
-
-		link, _ := exec.splitInfo.Link()
-
-		exec.addMembers(append(children, link))
-
-		return true
 	}
+
+	link, _ := exec.splitInfo.Link()
+	exec.addMembers(append(children, link))
+	return nil
 }
 
-func (exec *execCtx) supplementBySplitID(ctx context.Context) bool {
+func (exec *execCtx) supplementBySplitID(ctx context.Context) error {
 	exec.log.Debug(logs.DeleteSupplementBySplitID)
 
 	chain, err := exec.svc.searcher.splitMembers(ctx, exec)
-
+	if err != nil {
-	switch {
+		return fmt.Errorf("search split chain members: %w", err)
-	default:
-		exec.status = statusUndefined
-		exec.err = err
-
-		exec.log.Debug(logs.DeleteCouldNotSearchForSplitChainMembers,
-			zap.String("error", err.Error()),
-		)
-
-		return false
-	case err == nil:
-		exec.status = statusOK
-		exec.err = nil
-
-		exec.addMembers(chain)
-
-		return true
 	}
+
+	exec.addMembers(chain)
+	return nil
 }
 
 func (exec *execCtx) addMembers(incoming []oid.ID) {
@@ -228,17 +162,10 @@ func (exec *execCtx) addMembers(incoming []oid.ID) {
 	exec.tombstone.SetMembers(append(members, incoming...))
 }
 
-func (exec *execCtx) initTombstoneObject() bool {
+func (exec *execCtx) initTombstoneObject() error {
 	payload, err := exec.tombstone.Marshal()
 	if err != nil {
-		exec.status = statusUndefined
+		return fmt.Errorf("marshal tombstone: %w", err)
-		exec.err = err
-
-		exec.log.Debug(logs.DeleteCouldNotMarshalTombstoneStructure,
-			zap.String("error", err.Error()),
-		)
-
-		return false
 	}
 
 	exec.tombstoneObj = objectSDK.New()
@@ -262,29 +189,15 @@ func (exec *execCtx) initTombstoneObject() bool {
 
 	exec.tombstoneObj.SetAttributes(a)
 
-	return true
+	return nil
 }
 
-func (exec *execCtx) saveTombstone(ctx context.Context) bool {
+func (exec *execCtx) saveTombstone(ctx context.Context) error {
 	id, err := exec.svc.placer.put(ctx, exec)
-
+	if err != nil {
-	switch {
+		return fmt.Errorf("save tombstone: %w", err)
-	default:
-		exec.status = statusUndefined
-		exec.err = err
-
-		exec.log.Debug(logs.DeleteCouldNotSaveTheTombstone,
-			zap.String("error", err.Error()),
-		)
-
-		return false
-	case err == nil:
-		exec.status = statusOK
-		exec.err = nil
-
-		exec.prm.tombAddrWriter.
-			SetAddress(exec.newAddress(*id))
 	}
 
-	return true
+	exec.prm.tombAddrWriter.SetAddress(exec.newAddress(*id))
+	return nil
 }

pkg/services/object/delete/local.go

@@ -2,37 +2,29 @@ package deletesvc
 
 import (
 	"context"
+	"fmt"
 
 	"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
 	objectSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
 	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
-	"go.uber.org/zap"
 )
 
-func (exec *execCtx) executeLocal(ctx context.Context) {
+func (exec *execCtx) executeLocal(ctx context.Context) error {
 	exec.log.Debug(logs.DeleteFormingTombstoneStructure)
 
-	ok := exec.formTombstone(ctx)
+	if err := exec.formTombstone(ctx); err != nil {
-	if !ok {
+		return err
-		return
 	}
 
 	exec.log.Debug(logs.DeleteTombstoneStructureSuccessfullyFormedSaving)
 
-	exec.saveTombstone(ctx)
+	return exec.saveTombstone(ctx)
 }
 
-func (exec *execCtx) formTombstone(ctx context.Context) (ok bool) {
+func (exec *execCtx) formTombstone(ctx context.Context) error {
 	tsLifetime, err := exec.svc.netInfo.TombstoneLifetime()
 	if err != nil {
-		exec.status = statusUndefined
+		return fmt.Errorf("fetch tombstone lifetime: %w", err)
-		exec.err = err
-
-		exec.log.Debug(logs.DeleteCouldNotReadTombstoneLifetimeConfig,
-			zap.String("error", err.Error()),
-		)
-
-		return false
 	}
 
 	exec.tombstone = objectSDK.NewTombstone()
@@ -43,26 +35,19 @@ func (exec *execCtx) formTombstone(ctx context.Context) (ok bool) {
 
 	exec.log.Debug(logs.DeleteFormingSplitInfo)
 
-	ok = exec.formSplitInfo(ctx)
+	if err := exec.formSplitInfo(ctx); err != nil {
-	if !ok {
+		return fmt.Errorf("form split info: %w", err)
-		return
 	}
 
 	exec.log.Debug(logs.DeleteSplitInfoSuccessfullyFormedCollectingMembers)
 
 	exec.tombstone.SetSplitID(exec.splitInfo.SplitID())
 
-	ok = exec.collectMembers(ctx)
+	if err := exec.collectMembers(ctx); err != nil {
-	if !ok {
+		return err
-		return
 	}
 
 	exec.log.Debug(logs.DeleteMembersSuccessfullyCollected)
 
-	ok = exec.initTombstoneObject()
+	return exec.initTombstoneObject()
-	if !ok {
-		return
-	}
-
-	return true
 }

pkg/services/object/get/get_test.go

@@ -273,7 +273,7 @@ func TestGetLocalOnly(t *testing.T) {
 
 	newSvc := func(storage *testStorage) *Service {
 		return &Service{
-			log:          test.NewLogger(t, false),
+			log:          test.NewLogger(t, true),
 			localStorage: storage,
 		}
 	}
@@ -535,7 +535,7 @@ func TestGetRemoteSmall(t *testing.T) {
 		const curEpoch = 13
 
 		return &Service{
-			log:          test.NewLogger(t, false),
+			log:          test.NewLogger(t, true),
 			localStorage: newTestStorage(),
 			traverserGenerator: &testTraverserGenerator{
 				c: cnr,
@@ -1667,7 +1667,7 @@ func TestGetFromPastEpoch(t *testing.T) {
 	const curEpoch = 13
 
 	svc := &Service{
-		log:          test.NewLogger(t, false),
+		log:          test.NewLogger(t, true),
 		localStorage: newTestStorage(),
 		epochSource:  testEpochReceiver(curEpoch),
 		traverserGenerator: &testTraverserGenerator{

pkg/services/object/internal/client/client.go

@@ -88,7 +88,7 @@ func (x *readPrmCommon) SetNetmapEpoch(_ uint64) {
 type GetObjectPrm struct {
 	readPrmCommon
 
-	cliPrm client.PrmObjectGet
+	ClientParams client.PrmObjectGet
 
 	obj oid.ID
 }
@@ -97,7 +97,7 @@ type GetObjectPrm struct {
 //
 // By default request will not be raw.
 func (x *GetObjectPrm) SetRawFlag() {
-	x.cliPrm.MarkRaw()
+	x.ClientParams.Raw = true
 }
 
 // SetAddress sets object address.
@@ -105,8 +105,10 @@ func (x *GetObjectPrm) SetRawFlag() {
 // Required parameter.
 func (x *GetObjectPrm) SetAddress(addr oid.Address) {
 	x.obj = addr.Object()
-	x.cliPrm.FromContainer(addr.Container())
+	cnr := addr.Container()
-	x.cliPrm.ByID(x.obj)
+
+	x.ClientParams.ContainerID = &cnr
+	x.ClientParams.ObjectID = &x.obj
 }
 
 // GetObjectRes groups the resulting values of GetObject operation.
@@ -134,23 +136,15 @@ func GetObject(ctx context.Context, prm GetObjectPrm) (*GetObjectRes, error) {
 	// request will almost definitely fail. The case can occur, for example,
 	// when session is bound to the parent object and child object is requested.
 	if prm.tokenSession != nil && prm.tokenSession.AssertObject(prm.obj) {
-		prm.cliPrm.WithinSession(*prm.tokenSession)
+		prm.ClientParams.Session = prm.tokenSession
 	}
 
-	if prm.tokenBearer != nil {
+	prm.ClientParams.XHeaders = prm.xHeaders
-		prm.cliPrm.WithBearerToken(*prm.tokenBearer)
+	prm.ClientParams.BearerToken = prm.tokenBearer
-	}
+	prm.ClientParams.Local = prm.local
+	prm.ClientParams.Key = prm.key
 
-	if prm.local {
+	rdr, err := prm.cli.ObjectGetInit(ctx, prm.ClientParams)
-		prm.cliPrm.MarkLocal()
-	}
-
-	prm.cliPrm.WithXHeaders(prm.xHeaders...)
-	if prm.key != nil {
-		prm.cliPrm.UseKey(*prm.key)
-	}
-
-	rdr, err := prm.cli.ObjectGetInit(ctx, prm.cliPrm)
 	if err != nil {
 		return nil, fmt.Errorf("init object reading: %w", err)
 	}
@@ -187,7 +181,7 @@ func GetObject(ctx context.Context, prm GetObjectPrm) (*GetObjectRes, error) {
 type HeadObjectPrm struct {
 	readPrmCommon
 
-	cliPrm client.PrmObjectHead
+	ClientParams client.PrmObjectHead
 
 	obj oid.ID
 }
@@ -196,7 +190,7 @@ type HeadObjectPrm struct {
 //
 // By default request will not be raw.
 func (x *HeadObjectPrm) SetRawFlag() {
-	x.cliPrm.MarkRaw()
+	x.ClientParams.Raw = true
 }
 
 // SetAddress sets object address.
@@ -204,8 +198,10 @@ func (x *HeadObjectPrm) SetRawFlag() {
 // Required parameter.
 func (x *HeadObjectPrm) SetAddress(addr oid.Address) {
 	x.obj = addr.Object()
-	x.cliPrm.FromContainer(addr.Container())
+	cnr := addr.Container()
-	x.cliPrm.ByID(x.obj)
+
+	x.ClientParams.ContainerID = &cnr
+	x.ClientParams.ObjectID = &x.obj
 }
 
 // HeadObjectRes groups the resulting values of GetObject operation.
@@ -230,22 +226,16 @@ func (x HeadObjectRes) Header() *objectSDK.Object {
 //
 // HeadObject ignores the provided session if it is not related to the requested objectSDK.
 func HeadObject(ctx context.Context, prm HeadObjectPrm) (*HeadObjectRes, error) {
-	if prm.local {
-		prm.cliPrm.MarkLocal()
-	}
-
 	// see details in same statement of GetObject
 	if prm.tokenSession != nil && prm.tokenSession.AssertObject(prm.obj) {
-		prm.cliPrm.WithinSession(*prm.tokenSession)
+		prm.ClientParams.Session = prm.tokenSession
 	}
 
-	if prm.tokenBearer != nil {
+	prm.ClientParams.BearerToken = prm.tokenBearer
-		prm.cliPrm.WithBearerToken(*prm.tokenBearer)
+	prm.ClientParams.Local = prm.local
-	}
+	prm.ClientParams.XHeaders = prm.xHeaders
 
-	prm.cliPrm.WithXHeaders(prm.xHeaders...)
+	cliRes, err := prm.cli.ObjectHead(ctx, prm.ClientParams)
-
-	cliRes, err := prm.cli.ObjectHead(ctx, prm.cliPrm)
 	if err == nil {
 		// pull out an error from status
 		err = apistatus.ErrFromStatus(cliRes.Status())
@@ -272,7 +262,7 @@ type PayloadRangePrm struct {
 
 	ln uint64
 
-	cliPrm client.PrmObjectRange
+	ClientParams client.PrmObjectRange
 
 	obj oid.ID
 }
@@ -281,7 +271,7 @@ type PayloadRangePrm struct {
 //
 // By default request will not be raw.
 func (x *PayloadRangePrm) SetRawFlag() {
-	x.cliPrm.MarkRaw()
+	x.ClientParams.Raw = true
 }
 
 // SetAddress sets object address.
@@ -289,15 +279,17 @@ func (x *PayloadRangePrm) SetRawFlag() {
 // Required parameter.
 func (x *PayloadRangePrm) SetAddress(addr oid.Address) {
 	x.obj = addr.Object()
-	x.cliPrm.FromContainer(addr.Container())
+	cnr := addr.Container()
-	x.cliPrm.ByID(x.obj)
+
+	x.ClientParams.ContainerID = &cnr
+	x.ClientParams.ObjectID = &x.obj
 }
 
 // SetRange range of the object payload to be read.
 //
 // Required parameter.
 func (x *PayloadRangePrm) SetRange(rng *objectSDK.Range) {
-	x.cliPrm.SetOffset(rng.GetOffset())
+	x.ClientParams.Offset = rng.GetOffset()
 	x.ln = rng.GetLength()
 }
 
@@ -329,23 +321,17 @@ const maxInitialBufferSize = 1024 * 1024 // 1 MiB
 //
 // PayloadRange ignores the provided session if it is not related to the requested objectSDK.
 func PayloadRange(ctx context.Context, prm PayloadRangePrm) (*PayloadRangeRes, error) {
-	if prm.local {
-		prm.cliPrm.MarkLocal()
-	}
-
 	// see details in same statement of GetObject
 	if prm.tokenSession != nil && prm.tokenSession.AssertObject(prm.obj) {
-		prm.cliPrm.WithinSession(*prm.tokenSession)
+		prm.ClientParams.Session = prm.tokenSession
 	}
 
-	if prm.tokenBearer != nil {
+	prm.ClientParams.XHeaders = prm.xHeaders
-		prm.cliPrm.WithBearerToken(*prm.tokenBearer)
+	prm.ClientParams.BearerToken = prm.tokenBearer
-	}
+	prm.ClientParams.Local = prm.local
+	prm.ClientParams.Length = prm.ln
 
-	prm.cliPrm.SetLength(prm.ln)
+	rdr, err := prm.cli.ObjectRangeInit(ctx, prm.ClientParams)
-	prm.cliPrm.WithXHeaders(prm.xHeaders...)
-
-	rdr, err := prm.cli.ObjectRangeInit(ctx, prm.cliPrm)
 	if err != nil {
 		return nil, fmt.Errorf("init payload reading: %w", err)
 	}

pkg/services/object/put/common.go

@@ -0,0 +1,119 @@
+package putsvc
+
+import (
+	"context"
+	"fmt"
+	"sync"
+	"sync/atomic"
+
+	"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
+	svcutil "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/object/util"
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/object_manager/placement"
+	objectSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
+	"go.uber.org/zap"
+)
+
+type nodeIterator struct {
+	traversal
+	cfg *cfg
+}
+
+func (c *cfg) newNodeIterator(opts []placement.Option) *nodeIterator {
+	return &nodeIterator{
+		traversal: traversal{
+			opts:     opts,
+			mExclude: make(map[string]*bool),
+		},
+		cfg: c,
+	}
+}
+
+func (n *nodeIterator) forEachNode(ctx context.Context, f func(context.Context, nodeDesc) error) error {
+	traverser, err := placement.NewTraverser(n.traversal.opts...)
+	if err != nil {
+		return fmt.Errorf("could not create object placement traverser: %w", err)
+	}
+
+	resErr := &atomic.Value{}
+
+	// Must iterate over all replicas, regardless of whether there are identical nodes there.
+	// At the same time need to exclude identical nodes from processing.
+	for {
+		addrs := traverser.Next()
+		if len(addrs) == 0 {
+			break
+		}
+
+		if n.forEachAddress(ctx, traverser, addrs, f, resErr) {
+			break
+		}
+	}
+
+	if !traverser.Success() {
+		var err errIncompletePut
+		err.singleErr, _ = resErr.Load().(error)
+		return err
+	}
+
+	// perform additional container broadcast if needed
+	if n.traversal.submitPrimaryPlacementFinish() {
+		err := n.forEachNode(ctx, f)
+		if err != nil {
+			n.cfg.log.Error(logs.PutAdditionalContainerBroadcastFailure, zap.Error(err))
+			// we don't fail primary operation because of broadcast failure
+		}
+	}
+
+	return nil
+}
+
+func (n *nodeIterator) forEachAddress(ctx context.Context, traverser *placement.Traverser, addrs []placement.Node, f func(context.Context, nodeDesc) error, resErr *atomic.Value) bool {
+	var wg sync.WaitGroup
+
+	for _, addr := range addrs {
+		addr := addr
+		if ok := n.mExclude[string(addr.PublicKey())]; ok != nil {
+			if *ok {
+				traverser.SubmitSuccess()
+			}
+			// This can happen only during additional container broadcast.
+			continue
+		}
+
+		workerPool, isLocal := n.cfg.getWorkerPool(addr.PublicKey())
+
+		item := new(bool)
+		wg.Add(1)
+		if err := workerPool.Submit(func() {
+			defer wg.Done()
+
+			err := f(ctx, nodeDesc{local: isLocal, info: addr})
+			if err != nil {
+				resErr.Store(err)
+				svcutil.LogServiceError(n.cfg.log, "PUT", addr.Addresses(), err)
+				return
+			}
+
+			traverser.SubmitSuccess()
+			*item = true
+		}); err != nil {
+			wg.Done()
+			svcutil.LogWorkerPoolError(n.cfg.log, "PUT", err)
+			return true
+		}
+
+		// Mark the container node as processed in order to exclude it
+		// in subsequent container broadcast. Note that we don't
+		// process this node during broadcast if primary placement
+		// on it failed.
+		n.traversal.submitProcessed(addr, item)
+	}
+
+	wg.Wait()
+
+	return false
+}
+
+func needAdditionalBroadcast(obj *objectSDK.Object, localOnly bool) bool {
+	return len(obj.Children()) > 0 || (!localOnly && (obj.Type() == objectSDK.TypeTombstone || obj.Type() == objectSDK.TypeLock))
+}

pkg/services/object/put/distributed.go

@@ -3,18 +3,11 @@ package putsvc
 import (
 	"context"
 	"fmt"
-	"sync"
-	"sync/atomic"
 
-	"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/core/object"
-	svcutil "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/object/util"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/object_manager/placement"
-	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util"
-	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
 	objectSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/transformer"
-	"go.uber.org/zap"
 )
 
 type preparedObjectTarget interface {
@@ -22,22 +15,19 @@ type preparedObjectTarget interface {
 }
 
 type distributedTarget struct {
-	traversal traversal
+	placementOpts         []placement.Option
+	extraBroadcastEnabled bool
 
 	obj     *objectSDK.Object
 	objMeta object.ContentMeta
 
+	*cfg
+
 	payload *payload
 
 	nodeTargetInitializer func(nodeDesc) preparedObjectTarget
 
-	getWorkerPool func([]byte) (util.WorkerPool, bool)
-
 	relay func(context.Context, nodeDesc) error
-
-	fmt *object.FormatValidator
-
-	log *logger.Logger
 }
 
 // parameters and state of container traversal.
@@ -137,15 +127,9 @@ func (t *distributedTarget) WriteObject(ctx context.Context, obj *objectSDK.Obje
 
 	var err error
 
-	if t.objMeta, err = t.fmt.ValidateContent(t.obj); err != nil {
+	if t.objMeta, err = t.fmtValidator.ValidateContent(t.obj); err != nil {
 		return fmt.Errorf("(%T) could not validate payload content: %w", t, err)
 	}
-
-	if len(t.obj.Children()) > 0 {
-		// enabling extra broadcast for linking objects
-		t.traversal.extraBroadcastEnabled = true
-	}
-
 	return t.iteratePlacement(ctx)
 }
 
@@ -166,90 +150,7 @@ func (t *distributedTarget) sendObject(ctx context.Context, node nodeDesc) error
 func (t *distributedTarget) iteratePlacement(ctx context.Context) error {
 	id, _ := t.obj.ID()
 
-	traverser, err := placement.NewTraverser(
+	iter := t.cfg.newNodeIterator(append(t.placementOpts, placement.ForObject(id)))
-		append(t.traversal.opts, placement.ForObject(id))...,
+	iter.extraBroadcastEnabled = needAdditionalBroadcast(t.obj, false /* Distributed target is for cluster-wide PUT */)
-	)
+	return iter.forEachNode(ctx, t.sendObject)
-	if err != nil {
-		return fmt.Errorf("(%T) could not create object placement traverser: %w", t, err)
-	}
-
-	resErr := &atomic.Value{}
-
-	// Must iterate over all replicas, regardless of whether there are identical nodes there.
-	// At the same time need to exclude identical nodes from processing.
-	for {
-		addrs := traverser.Next()
-		if len(addrs) == 0 {
-			break
-		}
-
-		if t.iterateAddresses(ctx, traverser, addrs, resErr) {
-			break
-		}
-	}
-
-	if !traverser.Success() {
-		var err errIncompletePut
-		err.singleErr, _ = resErr.Load().(error)
-		return err
-	}
-
-	// perform additional container broadcast if needed
-	if t.traversal.submitPrimaryPlacementFinish() {
-		err = t.iteratePlacement(ctx)
-		if err != nil {
-			t.log.Error(logs.PutAdditionalContainerBroadcastFailure, zap.Error(err))
-			// we don't fail primary operation because of broadcast failure
-		}
-	}
-
-	return nil
-}
-
-func (t *distributedTarget) iterateAddresses(ctx context.Context, traverser *placement.Traverser, addrs []placement.Node, resErr *atomic.Value) bool {
-	wg := &sync.WaitGroup{}
-
-	for i := range addrs {
-		addr := addrs[i]
-		if val := t.traversal.mExclude[string(addr.PublicKey())]; val != nil {
-			// Check is node processed successful on the previous iteration.
-			if *val {
-				traverser.SubmitSuccess()
-			}
-			// it can happen only during additional container broadcast
-			continue
-		}
-
-		wg.Add(1)
-		item := new(bool)
-
-		workerPool, isLocal := t.getWorkerPool(addr.PublicKey())
-		if err := workerPool.Submit(func() {
-			defer wg.Done()
-
-			err := t.sendObject(ctx, nodeDesc{local: isLocal, info: addr})
-			if err != nil {
-				resErr.Store(err)
-				svcutil.LogServiceError(t.log, "PUT", addr.Addresses(), err)
-				return
-			}
-
-			traverser.SubmitSuccess()
-			*item = true
-		}); err != nil {
-			wg.Done()
-			svcutil.LogWorkerPoolError(t.log, "PUT", err)
-			return true
-		}
-
-		// mark the container node as processed in order to exclude it
-		// in subsequent container broadcast. Note that we don't
-		// process this node during broadcast if primary placement
-		// on it failed.
-		t.traversal.submitProcessed(addr, item)
-	}
-
-	wg.Wait()
-
-	return false
 }

pkg/services/object/put/service.go

@@ -29,6 +29,14 @@ type ClientConstructor interface {
 	Get(client.NodeInfo) (client.MultiAddressClient, error)
 }
 
+type InnerRing interface {
+	InnerRingKeys() ([][]byte, error)
+}
+
+type FormatValidatorConfig interface {
+	VerifySessionTokenIssuer() bool
+}
+
 type cfg struct {
 	keyStorage *objutil.KeyStorage
 
@@ -51,6 +59,8 @@ type cfg struct {
 	clientConstructor ClientConstructor
 
 	log *logger.Logger
+
+	verifySessionTokenIssuer bool
 }
 
 func NewService(ks *objutil.KeyStorage,
@@ -61,6 +71,7 @@ func NewService(ks *objutil.KeyStorage,
 	ns netmap.Source,
 	nk netmap.AnnouncedKeys,
 	nst netmap.State,
+	ir InnerRing,
 	opts ...Option) *Service {
 	c := &cfg{
 		remotePool:        util.NewPseudoWorkerPool(),
@@ -80,7 +91,15 @@ func NewService(ks *objutil.KeyStorage,
 		opts[i](c)
 	}
 
-	c.fmtValidator = object.NewFormatValidator(object.WithLockSource(os), object.WithNetState(nst))
+	c.fmtValidator = object.NewFormatValidator(
+		object.WithLockSource(os),
+		object.WithNetState(nst),
+		object.WithInnerRing(ir),
+		object.WithNetmapSource(ns),
+		object.WithContainersSource(cs),
+		object.WithVerifySessionTokenIssuer(c.verifySessionTokenIssuer),
+		object.WithLogger(c.log),
+	)
 
 	return &Service{
 		cfg: c,
@@ -104,3 +123,9 @@ func WithLogger(l *logger.Logger) Option {
 		c.log = l
 	}
 }
+
+func WithVerifySessionTokenIssuer(v bool) Option {
+	return func(c *cfg) {
+		c.verifySessionTokenIssuer = v
+	}
+}

pkg/services/object/put/single.go

@@ -8,7 +8,6 @@ import (
 	"fmt"
 	"hash"
 	"sync"
-	"sync/atomic"
 
 	objectAPI "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/object"
 	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/rpc"
@@ -150,18 +149,19 @@ func (s *Service) saveToNodes(ctx context.Context, obj *objectSDK.Object, req *o
 	if err != nil {
 		return err
 	}
-	traversal := &traversal{
+
-		opts: placementOptions,
+	iter := s.cfg.newNodeIterator(placementOptions)
-		extraBroadcastEnabled: len(obj.Children()) > 0 ||
+	iter.extraBroadcastEnabled = needAdditionalBroadcast(obj, localOnly)
-			(!localOnly && (obj.Type() == objectSDK.TypeTombstone || obj.Type() == objectSDK.TypeLock)),
+
-		mExclude: make(map[string]*bool),
-	}
 	signer := &putSingleRequestSigner{
 		req:        req,
 		keyStorage: s.keyStorage,
 		signer:     &sync.Once{},
 	}
-	return s.saveAccordingToPlacement(ctx, obj, signer, traversal, meta)
+
+	return iter.forEachNode(ctx, func(ctx context.Context, nd nodeDesc) error {
+		return s.saveToPlacementNode(ctx, &nd, obj, signer, meta)
+	})
 }
 
 func (s *Service) getPutSinglePlacementOptions(obj *objectSDK.Object, copiesNumber []uint32, localOnly bool) ([]placement.Option, error) {
@@ -199,97 +199,6 @@ func (s *Service) getPutSinglePlacementOptions(obj *objectSDK.Object, copiesNumb
 	return result, nil
 }
 
-func (s *Service) saveAccordingToPlacement(ctx context.Context, obj *objectSDK.Object, signer *putSingleRequestSigner,
-	traversal *traversal, meta object.ContentMeta) error {
-	traverser, err := placement.NewTraverser(traversal.opts...)
-	if err != nil {
-		return fmt.Errorf("could not create object placement traverser: %w", err)
-	}
-
-	var resultError atomic.Value
-	for {
-		addrs := traverser.Next()
-		if len(addrs) == 0 {
-			break
-		}
-
-		if stop := s.saveToPlacementNodes(ctx, obj, signer, traversal, traverser, addrs, meta, &resultError); stop {
-			break
-		}
-	}
-
-	if !traverser.Success() {
-		var err errIncompletePut
-		err.singleErr, _ = resultError.Load().(error)
-		return err
-	}
-
-	if traversal.submitPrimaryPlacementFinish() {
-		err = s.saveAccordingToPlacement(ctx, obj, signer, traversal, meta)
-		if err != nil {
-			s.log.Error(logs.PutAdditionalContainerBroadcastFailure, zap.Error(err))
-		}
-	}
-
-	return nil
-}
-
-func (s *Service) saveToPlacementNodes(ctx context.Context,
-	obj *objectSDK.Object,
-	signer *putSingleRequestSigner,
-	traversal *traversal,
-	traverser *placement.Traverser,
-	nodeAddresses []placement.Node,
-	meta object.ContentMeta,
-	resultError *atomic.Value,
-) bool {
-	wg := sync.WaitGroup{}
-
-	for _, nodeAddress := range nodeAddresses {
-		nodeAddress := nodeAddress
-		if ok := traversal.mExclude[string(nodeAddress.PublicKey())]; ok != nil {
-			if *ok {
-				traverser.SubmitSuccess()
-			}
-			continue
-		}
-
-		local := false
-		workerPool := s.remotePool
-		if s.netmapKeys.IsLocalKey(nodeAddress.PublicKey()) {
-			local = true
-			workerPool = s.localPool
-		}
-
-		item := new(bool)
-		wg.Add(1)
-		if err := workerPool.Submit(func() {
-			defer wg.Done()
-
-			err := s.saveToPlacementNode(ctx, &nodeDesc{local: local, info: nodeAddress}, obj, signer, meta)
-
-			if err != nil {
-				resultError.Store(err)
-				svcutil.LogServiceError(s.log, "PUT", nodeAddress.Addresses(), err)
-				return
-			}
-
-			traverser.SubmitSuccess()
-			*item = true
-		}); err != nil {
-			wg.Done()
-			svcutil.LogWorkerPoolError(s.log, "PUT", err)
-			return true
-		}
-
-		traversal.submitProcessed(nodeAddress, item)
-	}
-
-	wg.Wait()
-
-	return false
-}
-
 func (s *Service) saveToPlacementNode(ctx context.Context, nodeDesc *nodeDesc, obj *objectSDK.Object,
 	signer *putSingleRequestSigner, meta object.ContentMeta) error {
 	if nodeDesc.local {

pkg/services/object/put/streamer.go

@@ -215,13 +215,10 @@ func (p *Streamer) newCommonTarget(prm *PutInitPrm) *distributedTarget {
 	withBroadcast := !prm.common.LocalOnly() && (typ == objectSDK.TypeTombstone || typ == objectSDK.TypeLock)
 
 	return &distributedTarget{
-		traversal: traversal{
+		cfg:                   p.cfg,
-			opts: prm.traverseOpts,
+		placementOpts:         prm.traverseOpts,
-
+		extraBroadcastEnabled: withBroadcast,
-			extraBroadcastEnabled: withBroadcast,
+		payload:               getPayload(),
-		},
-		payload:       getPayload(),
-		getWorkerPool: p.getWorkerPool,
 		nodeTargetInitializer: func(node nodeDesc) preparedObjectTarget {
 			if node.local {
 				return localTarget{
@@ -240,8 +237,6 @@ func (p *Streamer) newCommonTarget(prm *PutInitPrm) *distributedTarget {
 			return rt
 		},
 		relay: relay,
-		fmt:   p.fmtValidator,
-		log:   p.log,
 	}
 }
 
@@ -279,9 +274,9 @@ func (p *Streamer) Close(ctx context.Context) (*PutResponse, error) {
 	}, nil
 }
 
-func (p *Streamer) getWorkerPool(pub []byte) (pkgutil.WorkerPool, bool) {
+func (c *cfg) getWorkerPool(pub []byte) (pkgutil.WorkerPool, bool) {
-	if p.netmapKeys.IsLocalKey(pub) {
+	if c.netmapKeys.IsLocalKey(pub) {
-		return p.localPool, true
+		return c.localPool, true
 	}
-	return p.remotePool, false
+	return c.remotePool, false
 }

pkg/services/object/search/container.go

@@ -3,6 +3,7 @@ package searchsvc
 import (
 	"context"
 	"encoding/hex"
+	"fmt"
 	"sync"
 
 	"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
@@ -10,12 +11,7 @@ import (
 	"go.uber.org/zap"
 )
 
-func (exec *execCtx) executeOnContainer(ctx context.Context) {
+func (exec *execCtx) executeOnContainer(ctx context.Context) error {
-	if exec.isLocal() {
-		exec.log.Debug(logs.SearchReturnResultDirectly)
-		return
-	}
-
 	lookupDepth := exec.netmapLookupDepth()
 
 	exec.log.Debug(logs.TryingToExecuteInContainer,
@@ -23,13 +19,12 @@ func (exec *execCtx) executeOnContainer(ctx context.Context) {
 	)
 
 	// initialize epoch number
-	ok := exec.initEpoch()
+	if err := exec.initEpoch(); err != nil {
-	if !ok {
+		return fmt.Errorf("%s: %w", logs.CouldNotGetCurrentEpochNumber, err)
-		return
 	}
 
 	for {
-		if exec.processCurrentEpoch(ctx) {
+		if err := exec.processCurrentEpoch(ctx); err != nil {
 			break
 		}
 
@@ -44,18 +39,17 @@ func (exec *execCtx) executeOnContainer(ctx context.Context) {
 		exec.curProcEpoch--
 	}
 
-	exec.status = statusOK
+	return nil
-	exec.err = nil
 }
 
-func (exec *execCtx) processCurrentEpoch(ctx context.Context) bool {
+func (exec *execCtx) processCurrentEpoch(ctx context.Context) error {
 	exec.log.Debug(logs.ProcessEpoch,
 		zap.Uint64("number", exec.curProcEpoch),
 	)
 
-	traverser, ok := exec.generateTraverser(exec.containerID())
+	traverser, err := exec.svc.traverserGenerator.GenerateTraverser(exec.containerID(), nil, exec.curProcEpoch)
-	if !ok {
+	if err != nil {
-		return true
+		return fmt.Errorf("%s: %w", logs.SearchCouldNotGenerateContainerTraverser, err)
 	}
 
 	ctx, cancel := context.WithCancel(ctx)
@@ -91,12 +85,7 @@ func (exec *execCtx) processCurrentEpoch(ctx context.Context) bool {
 
 				c, err := exec.svc.clientConstructor.get(info)
 				if err != nil {
-					mtx.Lock()
+					exec.log.Debug(logs.SearchCouldNotConstructRemoteNodeClient, zap.String("error", err.Error()))
-					exec.status = statusUndefined
-					exec.err = err
-					mtx.Unlock()
-
-					exec.log.Debug(logs.SearchCouldNotConstructRemoteNodeClient)
 					return
 				}
 
@@ -109,13 +98,17 @@ func (exec *execCtx) processCurrentEpoch(ctx context.Context) bool {
 				}
 
 				mtx.Lock()
-				exec.writeIDList(ids)
+				err = exec.writeIDList(ids)
 				mtx.Unlock()
+				if err != nil {
+					exec.log.Debug(logs.SearchCouldNotWriteObjectIdentifiers, zap.String("error", err.Error()))
+					return
+				}
 			}(i)
 		}
 
 		wg.Wait()
 	}
 
-	return false
+	return nil
 }

pkg/services/object/search/exec.go

@@ -1,8 +1,6 @@
 package searchsvc
 
 import (
-	"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
-	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/object_manager/placement"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
 	cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
 	objectSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
@@ -10,34 +8,16 @@ import (
 	"go.uber.org/zap"
 )
 
-type statusError struct {
-	status int
-	err    error
-}
-
 type execCtx struct {
 	svc *Service
 
 	prm Prm
 
-	statusError
-
 	log *logger.Logger
 
 	curProcEpoch uint64
 }
 
-const (
-	statusUndefined int = iota
-	statusOK
-)
-
-func (exec *execCtx) prepare() {
-	if _, ok := exec.prm.writer.(*uniqueIDWriter); !ok {
-		exec.prm.writer = newUniqueAddressWriter(exec.prm.writer)
-	}
-}
-
 func (exec *execCtx) setLogger(l *logger.Logger) {
 	exec.log = &logger.Logger{Logger: l.With(
 		zap.String("request", "SEARCH"),
@@ -68,64 +48,24 @@ func (exec *execCtx) netmapLookupDepth() uint64 {
 	return exec.prm.common.NetmapLookupDepth()
 }
 
-func (exec *execCtx) initEpoch() bool {
+func (exec *execCtx) initEpoch() error {
 	exec.curProcEpoch = exec.netmapEpoch()
 	if exec.curProcEpoch > 0 {
-		return true
+		return nil
 	}
 
-	e, err := exec.svc.currentEpochReceiver.currentEpoch()
+	e, err := exec.svc.currentEpochReceiver.Epoch()
-
+	if err != nil {
-	switch {
+		return err
-	default:
-		exec.status = statusUndefined
-		exec.err = err
-
-		exec.log.Debug(logs.CouldNotGetCurrentEpochNumber,
-			zap.String("error", err.Error()),
-		)
-
-		return false
-	case err == nil:
-		exec.curProcEpoch = e
-		return true
 	}
+
+	exec.curProcEpoch = e
+	return nil
 }
 
-func (exec *execCtx) generateTraverser(cnr cid.ID) (*placement.Traverser, bool) {
+func (exec *execCtx) writeIDList(ids []oid.ID) error {
-	t, err := exec.svc.traverserGenerator.generateTraverser(cnr, exec.curProcEpoch)
-
-	switch {
-	default:
-		exec.status = statusUndefined
-		exec.err = err
-
-		exec.log.Debug(logs.SearchCouldNotGenerateContainerTraverser,
-			zap.String("error", err.Error()),
-		)
-
-		return nil, false
-	case err == nil:
-		return t, true
-	}
-}
-
-func (exec *execCtx) writeIDList(ids []oid.ID) {
 	ids = exec.filterAllowedObjectIDs(ids)
-	err := exec.prm.writer.WriteIDs(ids)
+	return exec.prm.writer.WriteIDs(ids)
-
-	switch {
-	default:
-		exec.status = statusUndefined
-		exec.err = err
-
-		exec.log.Debug(logs.SearchCouldNotWriteObjectIdentifiers,
-			zap.String("error", err.Error()),
-		)
-	case err == nil:
-		exec.status = statusOK
-		exec.err = nil
-	}
 }
 
 func (exec *execCtx) filterAllowedObjectIDs(objIDs []oid.ID) []oid.ID {

pkg/services/object/search/local.go

@@ -2,24 +2,22 @@ package searchsvc
 
 import (
 	"context"
+	"fmt"
 
 	"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
 	"go.uber.org/zap"
 )
 
-func (exec *execCtx) executeLocal(ctx context.Context) {
+func (exec *execCtx) executeLocal(ctx context.Context) error {
 	ids, err := exec.svc.localStorage.search(ctx, exec)
-
 	if err != nil {
-		exec.status = statusUndefined
+		exec.log.Debug(logs.SearchLocalOperationFailed, zap.String("error", err.Error()))
-		exec.err = err
+		return err
-
-		exec.log.Debug(logs.SearchLocalOperationFailed,
-			zap.String("error", err.Error()),
-		)
-
-		return
 	}
 
-	exec.writeIDList(ids)
+	if err := exec.writeIDList(ids); err != nil {
+		return fmt.Errorf("%s: %w", logs.SearchCouldNotWriteObjectIdentifiers, err)
+	}
+
+	return nil
 }