[#734] shard: Fix Delete method

Due to the flushing data from the writecache to the storage
and simultaneous deletion, a partial deletion situation is possible.
So as a solution, deletion is allowed only when the object is in storage,
because object will be deleted from writecache by flush goroutine.

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

Makefile

@@ -70,6 +70,12 @@ dep:
 	CGO_ENABLED=0 \
 	go mod tidy -v && echo OK
 
+# Build export-metrics
+export-metrics: dep
+	@printf "⇒ Build export-metrics\n"
+	CGO_ENABLED=0 \
+	go build -v -trimpath -o bin/export-metrics ./scripts/export-metrics
+
 # Regenerate proto files:
 protoc:
 	@GOPRIVATE=github.com/TrueCloudLab go mod vendor

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

@@ -6,6 +6,8 @@ import (
 	"errors"
 	"fmt"
 	"io"
+	"sort"
+	"strings"
 
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/accounting"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/checksum"
@@ -69,6 +71,16 @@ func ListContainers(ctx context.Context, prm ListContainersPrm) (res ListContain
 	return
 }
 
+// SortedIDList returns sorted list of identifiers of user's containers.
+func (x ListContainersRes) SortedIDList() []cid.ID {
+	list := x.cliRes.Containers()
+	sort.Slice(list, func(i, j int) bool {
+		lhs, rhs := list[i].EncodeToString(), list[j].EncodeToString()
+		return strings.Compare(lhs, rhs) < 0
+	})
+	return list
+}
+
 // PutContainerPrm groups parameters of PutContainer operation.
 type PutContainerPrm struct {
 	Client       *client.Client
@@ -727,6 +739,11 @@ func SearchObjects(ctx context.Context, prm SearchObjectsPrm) (*SearchObjectsRes
 		return nil, fmt.Errorf("read object list: %w", err)
 	}
 
+	sort.Slice(list, func(i, j int) bool {
+		lhs, rhs := list[i].EncodeToString(), list[j].EncodeToString()
+		return strings.Compare(lhs, rhs) < 0
+	})
+
 	return &SearchObjectsRes{
 		ids: list,
 	}, nil

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

@@ -56,7 +56,7 @@ var listContainersCmd = &cobra.Command{
 			Client: cli,
 		}
 
-		containerIDs := res.IDList()
+		containerIDs := res.SortedIDList()
 		for _, cnrID := range containerIDs {
 			if flagVarListName == "" && !flagVarListPrintAttr {
 				cmd.Println(cnrID.String())

cmd/frostfs-cli/modules/control/shards_list.go

@@ -4,6 +4,7 @@ import (
 	"bytes"
 	"encoding/json"
 	"fmt"
+	"sort"
 	"strings"
 
 	rawclient "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/rpc/client"
@@ -49,11 +50,14 @@ func listShards(cmd *cobra.Command, _ []string) {
 
 	verifyResponse(cmd, resp.GetSignature(), resp.GetBody())
 
+	shards := resp.GetBody().GetShards()
+	sortShardsByID(shards)
+
 	isJSON, _ := cmd.Flags().GetBool(commonflags.JSON)
 	if isJSON {
-		prettyPrintShardsJSON(cmd, resp.GetBody().GetShards())
+		prettyPrintShardsJSON(cmd, shards)
 	} else {
-		prettyPrintShards(cmd, resp.GetBody().GetShards())
+		prettyPrintShards(cmd, shards)
 	}
 }
 
@@ -115,3 +119,9 @@ func shardModeToString(m control.ShardMode) string {
 
 	return "unknown"
 }
+
+func sortShardsByID(ii []*control.ShardInfo) {
+	sort.Slice(ii, func(i, j int) bool {
+		return bytes.Compare(ii[i].Shard_ID, ii[j].Shard_ID) < 0
+	})
+}

cmd/frostfs-cli/modules/control/shards_set_mode.go

@@ -1,7 +1,9 @@
 package control
 
 import (
+	"bytes"
 	"fmt"
+	"sort"
 	"strings"
 
 	rawclient "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/rpc/client"
@@ -167,5 +169,9 @@ func getShardIDList(cmd *cobra.Command) [][]byte {
 		res = append(res, raw)
 	}
 
+	sort.Slice(res, func(i, j int) bool {
+		return bytes.Compare(res[i], res[j]) < 0
+	})
+
 	return res
 }

cmd/frostfs-ir/main.go

@@ -10,6 +10,7 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/misc"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/innerring"
+	irMetrics "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/metrics"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
 	"github.com/spf13/viper"
 	"go.uber.org/zap"
@@ -61,12 +62,13 @@ func main() {
 	cfg, err = newConfig()
 	exitErr(err)
 
-	logPrm.MetricsNamespace = "frostfs_ir"
+	metrics := irMetrics.NewInnerRingMetrics()
+
 	err = logPrm.SetLevelString(
 		cfg.GetString("logger.level"),
 	)
 	exitErr(err)
-
+	logPrm.SamplingHook = metrics.LogMetrics().GetSamplingHook()
 	log, err = logger.NewLogger(logPrm)
 	exitErr(err)
 
@@ -78,7 +80,7 @@ func main() {
 	metricsCmp = newMetricsComponent()
 	metricsCmp.init()
 
-	innerRing, err = innerring.New(ctx, log, cfg, intErr)
+	innerRing, err = innerring.New(ctx, log, cfg, intErr, metrics)
 	exitErr(err)
 
 	pprofCmp.start()

cmd/frostfs-node/config.go

@@ -346,7 +346,6 @@ type internals struct {
 	healthStatus *atomic.Int32
 	// is node under maintenance
 	isMaintenance atomic.Bool
-	alreadyBootstraped bool
 }
 
 // starts node's maintenance.
@@ -555,22 +554,21 @@ func initCfg(appCfg *config.Config) *cfg {
 
 	key := nodeconfig.Key(appCfg)
 
+	relayOnly := nodeconfig.Relay(appCfg)
+
+	netState := newNetworkState()
+	netState.metrics = c.metricsCollector
+
+	c.shared = initShared(appCfg, key, netState, relayOnly)
+
 	logPrm, err := c.loggerPrm()
 	fatalOnErr(err)
-
+	logPrm.SamplingHook = c.metricsCollector.LogMetrics().GetSamplingHook()
-	logPrm.MetricsNamespace = "frostfs_node"
-
 	log, err := logger.NewLogger(logPrm)
 	fatalOnErr(err)
 
 	c.internals = initInternals(appCfg, log)
 
-	relayOnly := nodeconfig.Relay(appCfg)
-
-	netState := newNetworkState()
-
-	c.shared = initShared(appCfg, key, netState, relayOnly)
-
 	c.cfgAccounting = cfgAccounting{
 		scriptHash: contractsconfig.Balance(appCfg),
 	}
@@ -587,9 +585,6 @@ func initCfg(appCfg *config.Config) *cfg {
 
 	user.IDFromKey(&c.ownerIDFromKey, key.PrivateKey.PublicKey)
 
-	c.metricsCollector = metrics.NewNodeMetrics()
-	netState.metrics = c.metricsCollector
-
 	c.onShutdown(c.clientCache.CloseAll)    // clean up connections
 	c.onShutdown(c.bgClientCache.CloseAll)  // clean up connections
 	c.onShutdown(c.putClientCache.CloseAll) // clean up connections
@@ -639,6 +634,7 @@ func initShared(appCfg *config.Config, key *keys.PrivateKey, netState *networkSt
 		bgClientCache:    cache.NewSDKClientCache(cacheOpts),
 		putClientCache:   cache.NewSDKClientCache(cacheOpts),
 		persistate:       persistate,
+		metricsCollector: metrics.NewNodeMetrics(),
 	}
 }
 

cmd/frostfs-node/container.go

@@ -3,44 +3,22 @@ package main
 import (
 	"bytes"
 	"context"
-	"crypto/ecdsa"
-	"crypto/sha256"
-	"errors"
-	"fmt"
-	"strconv"
 
-	containerV2 "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/container"
 	containerGRPC "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/container/grpc"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
-	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/core/client"
 	containerCore "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/core/container"
-	netmapCore "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/core/netmap"
-	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/engine"
 	cntClient "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/morph/client/container"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/morph/event"
 	containerEvent "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/morph/event/container"
 	containerTransportGRPC "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/network/transport/container/grpc"
 	containerService "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/container"
-	loadcontroller "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/container/announcement/load/controller"
-	loadroute "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/container/announcement/load/route"
-	placementrouter "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/container/announcement/load/route/placement"
-	loadstorage "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/container/announcement/load/storage"
 	containerMorph "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/container/morph"
-	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
-	apiClient "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client"
-	containerSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container"
 	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"
 	"go.uber.org/zap"
 )
 
-const (
+func initContainerService(_ context.Context, c *cfg) {
-	startEstimationNotifyEvent = "StartEstimation"
-	stopEstimationNotifyEvent  = "StopEstimation"
-)
-
-func initContainerService(ctx context.Context, c *cfg) {
 	// container wrapper that tries to invoke notary
 	// requests if chain is configured so
 	wrap, err := cntClient.NewFromMorph(c.cfgMorph.client, c.cfgContainer.scriptHash, 0, cntClient.TryNotary())
@@ -52,44 +30,10 @@ func initContainerService(ctx context.Context, c *cfg) {
 
 	cnrRdr, cnrWrt := configureEACLAndContainerSources(c, wrap, cnrSrc)
 
-	loadAccumulator := loadstorage.New(loadstorage.Prm{})
-
-	loadPlacementBuilder := &loadPlacementBuilder{
-		log:    c.log,
-		nmSrc:  c.netMapSource,
-		cnrSrc: cnrSrc,
-	}
-
-	routeBuilder := placementrouter.New(placementrouter.Prm{
-		PlacementBuilder: loadPlacementBuilder,
-	})
-
-	loadRouter := loadroute.New(
-		loadroute.Prm{
-			LocalServerInfo: c,
-			RemoteWriterProvider: &remoteLoadAnnounceProvider{
-				key:             &c.key.PrivateKey,
-				netmapKeys:      c,
-				clientCache:     c.bgClientCache,
-				deadEndProvider: loadcontroller.SimpleWriterProvider(loadAccumulator),
-			},
-			Builder: routeBuilder,
-		},
-		loadroute.WithLogger(c.log),
-	)
-
-	setLoadController(ctx, c, loadRouter, loadAccumulator)
-
 	server := containerTransportGRPC.New(
 		containerService.NewSignService(
 			&c.key.PrivateKey,
-			&usedSpaceService{
+			containerService.NewExecutionService(containerMorph.NewExecutor(cnrRdr, cnrWrt), c.respSvc),
-				Server:               containerService.NewExecutionService(containerMorph.NewExecutor(cnrRdr, cnrWrt), c.respSvc),
-				loadWriterProvider:   loadRouter,
-				loadPlacementBuilder: loadPlacementBuilder,
-				routeBuilder:         routeBuilder,
-				cfg:                  c,
-			},
 		),
 	)
 
@@ -178,50 +122,6 @@ func configureEACLAndContainerSources(c *cfg, client *cntClient.Client, cnrSrc c
 	return cnrRdr, cnrWrt
 }
 
-func setLoadController(ctx context.Context, c *cfg, loadRouter *loadroute.Router, loadAccumulator *loadstorage.Storage) {
-	pubKey := c.key.PublicKey().Bytes()
-
-	// container wrapper that always sends non-notary
-	// requests
-	wrapperNoNotary, err := cntClient.NewFromMorph(c.cfgMorph.client, c.cfgContainer.scriptHash, 0)
-	fatalOnErr(err)
-
-	resultWriter := &morphLoadWriter{
-		log:            c.log,
-		cnrMorphClient: wrapperNoNotary,
-		key:            pubKey,
-	}
-
-	localMetrics := &localStorageLoad{
-		log:    c.log,
-		engine: c.cfgObject.cfgLocalStorage.localStorage,
-	}
-
-	ctrl := loadcontroller.New(
-		loadcontroller.Prm{
-			LocalMetrics:            loadcontroller.SimpleIteratorProvider(localMetrics),
-			AnnouncementAccumulator: loadcontroller.SimpleIteratorProvider(loadAccumulator),
-			LocalAnnouncementTarget: loadRouter,
-			ResultReceiver:          loadcontroller.SimpleWriterProvider(resultWriter),
-		},
-		loadcontroller.WithLogger(c.log),
-	)
-
-	setContainerNotificationParser(c, startEstimationNotifyEvent, containerEvent.ParseStartEstimation)
-	addContainerAsyncNotificationHandler(c, startEstimationNotifyEvent, func(ev event.Event) {
-		ctrl.Start(ctx, loadcontroller.StartPrm{
-			Epoch: ev.(containerEvent.StartEstimation).Epoch(),
-		})
-	})
-
-	setContainerNotificationParser(c, stopEstimationNotifyEvent, containerEvent.ParseStopEstimation)
-	addContainerAsyncNotificationHandler(c, stopEstimationNotifyEvent, func(ev event.Event) {
-		ctrl.Stop(ctx, loadcontroller.StopPrm{
-			Epoch: ev.(containerEvent.StopEstimation).Epoch(),
-		})
-	})
-}
-
 // addContainerNotificationHandler adds handler that will be executed synchronously.
 func addContainerNotificationHandler(c *cfg, sTyp string, h event.Handler) {
 	typ := event.TypeFromString(sTyp)
@@ -284,219 +184,6 @@ func setContainerNotificationParser(c *cfg, sTyp string, p event.NotificationPar
 	c.cfgContainer.parsers[typ] = p
 }
 
-type morphLoadWriter struct {
-	log *logger.Logger
-
-	cnrMorphClient *cntClient.Client
-
-	key []byte
-}
-
-func (w *morphLoadWriter) Put(a containerSDK.SizeEstimation) error {
-	w.log.Debug(logs.FrostFSNodeSaveUsedSpaceAnnouncementInContract,
-		zap.Uint64("epoch", a.Epoch()),
-		zap.Stringer("cid", a.Container()),
-		zap.Uint64("size", a.Value()),
-	)
-
-	prm := cntClient.AnnounceLoadPrm{}
-
-	prm.SetAnnouncement(a)
-	prm.SetReporter(w.key)
-
-	return w.cnrMorphClient.AnnounceLoad(prm)
-}
-
-func (*morphLoadWriter) Close(context.Context) error {
-	return nil
-}
-
-type nopLoadWriter struct{}
-
-func (nopLoadWriter) Put(containerSDK.SizeEstimation) error {
-	return nil
-}
-
-func (nopLoadWriter) Close(context.Context) error {
-	return nil
-}
-
-type remoteLoadAnnounceProvider struct {
-	key *ecdsa.PrivateKey
-
-	netmapKeys netmapCore.AnnouncedKeys
-
-	clientCache interface {
-		Get(client.NodeInfo) (client.MultiAddressClient, error)
-	}
-
-	deadEndProvider loadcontroller.WriterProvider
-}
-
-func (r *remoteLoadAnnounceProvider) InitRemote(srv loadcontroller.ServerInfo) (loadcontroller.WriterProvider, error) {
-	if srv == nil {
-		return r.deadEndProvider, nil
-	}
-
-	if r.netmapKeys.IsLocalKey(srv.PublicKey()) {
-		// if local => return no-op writer
-		return loadcontroller.SimpleWriterProvider(new(nopLoadWriter)), nil
-	}
-
-	var info client.NodeInfo
-
-	err := client.NodeInfoFromRawNetmapElement(&info, srv)
-	if err != nil {
-		return nil, fmt.Errorf("parse client node info: %w", err)
-	}
-
-	c, err := r.clientCache.Get(info)
-	if err != nil {
-		return nil, fmt.Errorf("could not initialize API client: %w", err)
-	}
-
-	return &remoteLoadAnnounceWriterProvider{
-		client: c,
-	}, nil
-}
-
-type remoteLoadAnnounceWriterProvider struct {
-	client client.Client
-}
-
-func (p *remoteLoadAnnounceWriterProvider) InitWriter([]loadcontroller.ServerInfo) (loadcontroller.Writer, error) {
-	return &remoteLoadAnnounceWriter{
-		client: p.client,
-	}, nil
-}
-
-type remoteLoadAnnounceWriter struct {
-	client client.Client
-
-	buf []containerSDK.SizeEstimation
-}
-
-func (r *remoteLoadAnnounceWriter) Put(a containerSDK.SizeEstimation) error {
-	r.buf = append(r.buf, a)
-
-	return nil
-}
-
-func (r *remoteLoadAnnounceWriter) Close(ctx context.Context) error {
-	cliPrm := apiClient.PrmAnnounceSpace{
-		Announcements: r.buf,
-	}
-
-	_, err := r.client.ContainerAnnounceUsedSpace(ctx, cliPrm)
-	return err
-}
-
-type loadPlacementBuilder struct {
-	log *logger.Logger
-
-	nmSrc netmapCore.Source
-
-	cnrSrc containerCore.Source
-}
-
-func (l *loadPlacementBuilder) BuildPlacement(epoch uint64, cnr cid.ID) ([][]netmap.NodeInfo, error) {
-	cnrNodes, nm, err := l.buildPlacement(epoch, cnr)
-	if err != nil {
-		return nil, err
-	}
-
-	const pivotPrefix = "load_announcement_"
-
-	pivot := []byte(
-		pivotPrefix + strconv.FormatUint(epoch, 10),
-	)
-
-	placement, err := nm.PlacementVectors(cnrNodes, pivot)
-	if err != nil {
-		return nil, fmt.Errorf("could not build placement vectors: %w", err)
-	}
-
-	return placement, nil
-}
-
-func (l *loadPlacementBuilder) buildPlacement(epoch uint64, idCnr cid.ID) ([][]netmap.NodeInfo, *netmap.NetMap, error) {
-	cnr, err := l.cnrSrc.Get(idCnr)
-	if err != nil {
-		return nil, nil, err
-	}
-
-	nm, err := l.nmSrc.GetNetMapByEpoch(epoch)
-	if err != nil {
-		return nil, nil, fmt.Errorf("could not get network map: %w", err)
-	}
-
-	binCnr := make([]byte, sha256.Size)
-	idCnr.Encode(binCnr)
-
-	cnrNodes, err := nm.ContainerNodes(cnr.Value.PlacementPolicy(), binCnr)
-	if err != nil {
-		return nil, nil, fmt.Errorf("could not build container nodes: %w", err)
-	}
-
-	return cnrNodes, nm, nil
-}
-
-type localStorageLoad struct {
-	log *logger.Logger
-
-	engine *engine.StorageEngine
-}
-
-func (d *localStorageLoad) Iterate(f loadcontroller.UsedSpaceFilter, h loadcontroller.UsedSpaceHandler) error {
-	idList, err := engine.ListContainers(context.TODO(), d.engine)
-	if err != nil {
-		return fmt.Errorf("list containers on engine failure: %w", err)
-	}
-
-	for i := range idList {
-		sz, err := engine.ContainerSize(d.engine, idList[i])
-		if err != nil {
-			d.log.Debug(logs.FrostFSNodeFailedToCalculateContainerSizeInStorageEngine,
-				zap.Stringer("cid", idList[i]),
-				zap.String("error", err.Error()),
-			)
-
-			continue
-		}
-
-		d.log.Debug(logs.FrostFSNodeContainerSizeInStorageEngineCalculatedSuccessfully,
-			zap.Uint64("size", sz),
-			zap.Stringer("cid", idList[i]),
-		)
-
-		var a containerSDK.SizeEstimation
-		a.SetContainer(idList[i])
-		a.SetValue(sz)
-
-		if f != nil && !f(a) {
-			continue
-		}
-
-		if err := h(a); err != nil {
-			return err
-		}
-	}
-
-	return nil
-}
-
-type usedSpaceService struct {
-	containerService.Server
-
-	loadWriterProvider loadcontroller.WriterProvider
-
-	loadPlacementBuilder *loadPlacementBuilder
-
-	routeBuilder loadroute.Builder
-
-	cfg *cfg
-}
-
 func (c *cfg) PublicKey() []byte {
 	return nodeKeyFromNetmap(c)
 }
@@ -517,125 +204,6 @@ func (c *cfg) ExternalAddresses() []string {
 	return c.cfgNodeInfo.localInfo.ExternalAddresses()
 }
 
-func (c *usedSpaceService) PublicKey() []byte {
-	return nodeKeyFromNetmap(c.cfg)
-}
-
-func (c *usedSpaceService) IterateAddresses(f func(string) bool) {
-	c.cfg.iterateNetworkAddresses(f)
-}
-
-func (c *usedSpaceService) NumberOfAddresses() int {
-	return c.cfg.addressNum()
-}
-
-func (c *usedSpaceService) ExternalAddresses() []string {
-	return c.cfg.ExternalAddresses()
-}
-
-func (c *usedSpaceService) AnnounceUsedSpace(ctx context.Context, req *containerV2.AnnounceUsedSpaceRequest) (*containerV2.AnnounceUsedSpaceResponse, error) {
-	var passedRoute []loadcontroller.ServerInfo
-
-	for hdr := req.GetVerificationHeader(); hdr != nil; hdr = hdr.GetOrigin() {
-		passedRoute = append(passedRoute, &containerOnlyKeyRemoteServerInfo{
-			key: hdr.GetBodySignature().GetKey(),
-		})
-	}
-
-	for left, right := 0, len(passedRoute)-1; left < right; left, right = left+1, right-1 {
-		passedRoute[left], passedRoute[right] = passedRoute[right], passedRoute[left]
-	}
-
-	passedRoute = append(passedRoute, c)
-
-	w, err := c.loadWriterProvider.InitWriter(passedRoute)
-	if err != nil {
-		return nil, fmt.Errorf("could not initialize container's used space writer: %w", err)
-	}
-
-	var est containerSDK.SizeEstimation
-
-	for _, aV2 := range req.GetBody().GetAnnouncements() {
-		err = est.ReadFromV2(aV2)
-		if err != nil {
-			return nil, fmt.Errorf("invalid size announcement: %w", err)
-		}
-
-		if err := c.processLoadValue(ctx, est, passedRoute, w); err != nil {
-			return nil, err
-		}
-	}
-
-	respBody := new(containerV2.AnnounceUsedSpaceResponseBody)
-
-	resp := new(containerV2.AnnounceUsedSpaceResponse)
-	resp.SetBody(respBody)
-
-	c.cfg.respSvc.SetMeta(resp)
-
-	return resp, nil
-}
-
-var errNodeOutsideContainer = errors.New("node outside the container")
-
-type containerOnlyKeyRemoteServerInfo struct {
-	key []byte
-}
-
-func (i *containerOnlyKeyRemoteServerInfo) PublicKey() []byte {
-	return i.key
-}
-
-func (*containerOnlyKeyRemoteServerInfo) IterateAddresses(func(string) bool) {
-}
-
-func (*containerOnlyKeyRemoteServerInfo) NumberOfAddresses() int {
-	return 0
-}
-
-func (*containerOnlyKeyRemoteServerInfo) ExternalAddresses() []string {
-	return nil
-}
-
-func (l *loadPlacementBuilder) isNodeFromContainerKey(epoch uint64, cnr cid.ID, key []byte) (bool, error) {
-	cnrNodes, _, err := l.buildPlacement(epoch, cnr)
-	if err != nil {
-		return false, err
-	}
-
-	for i := range cnrNodes {
-		for j := range cnrNodes[i] {
-			if bytes.Equal(cnrNodes[i][j].PublicKey(), key) {
-				return true, nil
-			}
-		}
-	}
-
-	return false, nil
-}
-
-func (c *usedSpaceService) processLoadValue(_ context.Context, a containerSDK.SizeEstimation,
-	route []loadcontroller.ServerInfo, w loadcontroller.Writer) error {
-	fromCnr, err := c.loadPlacementBuilder.isNodeFromContainerKey(a.Epoch(), a.Container(), route[0].PublicKey())
-	if err != nil {
-		return fmt.Errorf("could not verify that the sender belongs to the container: %w", err)
-	} else if !fromCnr {
-		return errNodeOutsideContainer
-	}
-
-	err = loadroute.CheckRoute(c.routeBuilder, a, route)
-	if err != nil {
-		return fmt.Errorf("wrong route of container's used space value: %w", err)
-	}
-
-	err = w.Put(a)
-	if err != nil {
-		return fmt.Errorf("could not write container's used space value: %w", err)
-	}
-
-	return nil
-}
-
 // implements interface required by container service provided by morph executor.
 type morphContainerReader struct {
 	eacl containerCore.EACLSource

cmd/frostfs-node/control.go

@@ -14,6 +14,8 @@ import (
 	"google.golang.org/grpc"
 )
 
+const serviceNameControl = "control"
+
 type treeSynchronizer struct {
 	treeSvc *tree.Service
 }
@@ -66,7 +68,10 @@ func initControlService(c *cfg) {
 	control.RegisterControlServiceServer(c.cfgControlService.server, ctlSvc)
 
 	c.workers = append(c.workers, newWorkerFromFunc(func(ctx context.Context) {
-		runAndLog(ctx, c, "control", false, func(context.Context, *cfg) {
+		runAndLog(ctx, c, serviceNameControl, false, func(context.Context, *cfg) {
+			c.log.Info(logs.FrostFSNodeStartListeningEndpoint,
+				zap.String("service", serviceNameControl),
+				zap.String("endpoint", endpoint))
 			fatalOnErr(c.cfgControlService.server.Serve(lis))
 		})
 	}))

cmd/frostfs-node/grpc.go

@@ -110,7 +110,8 @@ func serveGRPC(c *cfg) {
 				c.wg.Done()
 			}()
 
-			c.log.Info(logs.FrostFSNodeStartListeningGRPCEndpoint,
+			c.log.Info(logs.FrostFSNodeStartListeningEndpoint,
+				zap.String("service", "gRPC"),
 				zap.Stringer("endpoint", lis.Addr()),
 			)
 

cmd/frostfs-node/httpcomponent.go

@@ -6,7 +6,9 @@ import (
 	"net/http"
 	"time"
 
+	"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
 	httputil "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/http"
+	"go.uber.org/zap"
 )
 
 type httpComponent struct {
@@ -42,6 +44,9 @@ func (cmp *httpComponent) init(c *cfg) {
 		cmp.name,
 		func(ctx context.Context) {
 			runAndLog(ctx, c, cmp.name, false, func(context.Context, *cfg) {
+				c.log.Info(logs.FrostFSNodeStartListeningEndpoint,
+					zap.String("service", cmp.name),
+					zap.String("endpoint", cmp.address))
 				fatalOnErr(srv.Serve())
 			})
 		},

cmd/frostfs-node/morph.go

@@ -9,7 +9,6 @@ import (
 	morphconfig "git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-node/config/morph"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/core/netmap"
-	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/metrics"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/morph/client"
 	nmClient "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/morph/client/netmap"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/morph/event"
@@ -42,13 +41,13 @@ func initMorphComponents(ctx context.Context, c *cfg) {
 		c.key,
 		client.WithDialTimeout(morphconfig.DialTimeout(c.appCfg)),
 		client.WithLogger(c.log),
-		client.WithMetrics(metrics.NewMorphClientMetrics()),
+		client.WithMetrics(c.metricsCollector.MorphClientMetrics()),
 		client.WithEndpoints(addresses...),
 		client.WithConnLostCallback(func() {
 			c.internalErr <- errors.New("morph connection has been lost")
 		}),
 		client.WithSwitchInterval(morphconfig.SwitchInterval(c.appCfg)),
-		client.WithMorphCacheMetrics(metrics.NewNodeMorphCacheMetrics()),
+		client.WithMorphCacheMetrics(c.metricsCollector.MorphCacheMetrics()),
 	)
 	if err != nil {
 		c.log.Info(logs.FrostFSNodeFailedToCreateNeoRPCClient,

cmd/frostfs-node/netmap.go

@@ -179,16 +179,9 @@ func addNewEpochNotificationHandlers(c *cfg) {
 			return
 		}
 
-		n := ev.(netmapEvent.NewEpoch).EpochNumber()
+		if err := c.bootstrap(); err != nil {
-
-		const reBootstrapInterval = 2
-
-		if (n-c.cfgNetmap.startEpoch)%reBootstrapInterval == 0 {
-			err := c.bootstrap()
-			if err != nil {
 			c.log.Warn(logs.FrostFSNodeCantSendRebootstrapTx, zap.Error(err))
 		}
-		}
 	})
 
 	addNewEpochAsyncNotificationHandler(c, func(ev event.Event) {
@@ -227,10 +220,6 @@ func bootstrapNode(c *cfg) {
 			c.log.Info(logs.FrostFSNodeNodeIsUnderMaintenanceSkipInitialBootstrap)
 			return
 		}
-		if c.alreadyBootstraped {
-			c.log.Info(logs.NetmapNodeAlreadyInCandidateListOnlineSkipInitialBootstrap)
-			return
-		}
 		err := c.bootstrap()
 		fatalOnErrDetails("bootstrap error", err)
 	}
@@ -263,7 +252,7 @@ func initNetmapState(c *cfg) {
 	fatalOnErrDetails("could not initialize current epoch number", err)
 
 	var ni *netmapSDK.NodeInfo
-	ni, c.alreadyBootstraped, err = c.netmapInitLocalNodeState(epoch)
+	ni, err = c.netmapInitLocalNodeState(epoch)
 	fatalOnErrDetails("could not init network state", err)
 
 	stateWord := nodeState(ni)
@@ -282,13 +271,6 @@ func initNetmapState(c *cfg) {
 	c.handleLocalNodeInfo(ni)
 }
 
-func sameNodeInfo(a, b *netmapSDK.NodeInfo) bool {
-	// Suboptimal, but we do this once on the node startup.
-	rawA := a.Marshal()
-	rawB := b.Marshal()
-	return bytes.Equal(rawA, rawB)
-}
-
 func nodeState(ni *netmapSDK.NodeInfo) string {
 	if ni != nil {
 		switch {
@@ -303,29 +285,27 @@ func nodeState(ni *netmapSDK.NodeInfo) string {
 	return "undefined"
 }
 
-func (c *cfg) netmapInitLocalNodeState(epoch uint64) (*netmapSDK.NodeInfo, bool, error) {
+func (c *cfg) netmapInitLocalNodeState(epoch uint64) (*netmapSDK.NodeInfo, error) {
 	nmNodes, err := c.cfgNetmap.wrapper.GetCandidates()
 	if err != nil {
-		return nil, false, err
+		return nil, err
 	}
 
 	var candidate *netmapSDK.NodeInfo
-	alreadyBootstraped := false
 	for i := range nmNodes {
 		if bytes.Equal(nmNodes[i].PublicKey(), c.binPublicKey) {
 			candidate = &nmNodes[i]
-			alreadyBootstraped = candidate.IsOnline() && sameNodeInfo(&c.cfgNodeInfo.localInfo, candidate)
 			break
 		}
 	}
 
 	node, err := c.netmapLocalNodeState(epoch)
 	if err != nil {
-		return nil, false, err
+		return nil, err
 	}
 
 	if candidate == nil {
-		return node, false, nil
+		return node, nil
 	}
 
 	nmState := nodeState(node)
@@ -337,7 +317,7 @@ func (c *cfg) netmapInitLocalNodeState(epoch uint64) (*netmapSDK.NodeInfo, bool,
 			zap.String("netmap", nmState),
 			zap.String("candidate", candidateState))
 	}
-	return candidate, alreadyBootstraped, nil
+	return candidate, nil
 }
 
 func (c *cfg) netmapLocalNodeState(epoch uint64) (*netmapSDK.NodeInfo, error) {

cmd/frostfs-node/notificator.go

@@ -167,5 +167,7 @@ func connectNats(ctx context.Context, c *cfg) {
 	err := c.cfgNotifications.nw.w.Connect(ctx, endpoint)
 	if err != nil {
 		panic(fmt.Sprintf("could not connect to a nats endpoint %s: %v", endpoint, err))
+	} else {
+		c.log.Info(logs.NatsConnectedToEndpoint, zap.String("endpoint", endpoint))
 	}
 }

cmd/frostfs-node/object.go

@@ -260,6 +260,7 @@ func addPolicer(c *cfg, keyStorage *util.KeyStorage, clientConstructor *cache.Cl
 		}),
 		policer.WithMaxCapacity(c.cfgObject.pool.replicatorPoolSize),
 		policer.WithPool(c.cfgObject.pool.replication),
+		policer.WithMetrics(c.metricsCollector.PolicerMetrics()),
 	)
 
 	c.workers = append(c.workers, worker{

go.mod

@@ -6,7 +6,7 @@ require (
 	git.frostfs.info/TrueCloudLab/frostfs-api-go/v2 v2.16.0
 	git.frostfs.info/TrueCloudLab/frostfs-contract v0.18.0
 	git.frostfs.info/TrueCloudLab/frostfs-observability v0.0.0-20230531082742-c97d21411eb6
-	git.frostfs.info/TrueCloudLab/frostfs-sdk-go v0.0.0-20230911122224-ac8fc6d4400c
+	git.frostfs.info/TrueCloudLab/frostfs-sdk-go v0.0.0-20230928142024-84b9d29fc98c
 	git.frostfs.info/TrueCloudLab/hrw v1.2.1
 	git.frostfs.info/TrueCloudLab/tzhash v1.8.0
 	github.com/cheggaaa/pb v1.0.29

internal/logs/logs.go

@@ -123,6 +123,7 @@ const (
 	NatsNatsConnectionWasLost                                               = "nats: connection was lost"
 	NatsNatsReconnectedToTheServer                                          = "nats: reconnected to the server"
 	NatsNatsClosingConnectionAsTheContextIsDone                             = "nats: closing connection as the context is done"
+	NatsConnectedToEndpoint                                                 = "nats: successfully connected to endpoint"
 	ControllerStartingToAnnounceTheValuesOfTheMetrics                       = "starting to announce the values of the metrics"
 	ControllerCouldNotInitializeIteratorOverLocallyCollectedMetrics         = "could not initialize iterator over locally collected metrics"
 	ControllerCouldNotInitializeAnnouncementAccumulator                     = "could not initialize announcement accumulator"
@@ -413,10 +414,10 @@ const (
 	FrostFSIRCouldntCreateRPCClientForEndpoint                              = "could not create RPC client for endpoint"
 	FrostFSIRCreatedRPCClientForEndpoint                                    = "created RPC client for endpoint"
 	FrostFSIRReloadExtraWallets                                             = "reload extra wallets"
+	FrostFSNodeStartListeningEndpoint                                       = "start listening endpoint"
 	FrostFSNodeCouldNotReadCertificateFromFile                              = "could not read certificate from file"
 	FrostFSNodeCantListenGRPCEndpoint                                       = "can't listen gRPC endpoint"
 	FrostFSNodeStopListeningGRPCEndpoint                                    = "stop listening gRPC endpoint"
-	FrostFSNodeStartListeningGRPCEndpoint                                   = "start listening gRPC endpoint"
 	FrostFSNodeStoppingGRPCServer                                           = "stopping gRPC server..."
 	FrostFSNodeGRPCCannotShutdownGracefullyForcingStop                      = "gRPC cannot shutdown gracefully, forcing stop"
 	FrostFSNodeGRPCServerStoppedSuccessfully                                = "gRPC server stopped successfully"

pkg/innerring/innerring.go

@@ -325,11 +325,12 @@ func (s *Server) registerStarter(f func() error) {
 }
 
 // New creates instance of inner ring sever structure.
-func New(ctx context.Context, log *logger.Logger, cfg *viper.Viper, errChan chan<- error) (*Server, error) {
+func New(ctx context.Context, log *logger.Logger, cfg *viper.Viper, errChan chan<- error,
+	metrics *metrics.InnerRingServiceMetrics) (*Server, error) {
 	var err error
 	server := &Server{
 		log:       log,
-		irMetrics: metrics.NewInnerRingMetrics(),
+		irMetrics: metrics,
 	}
 
 	server.setHealthStatus(control.HealthStatus_HEALTH_STATUS_UNDEFINED)

pkg/local_object_storage/blobovnicza/delete.go

@@ -4,6 +4,7 @@ import (
 	"context"
 
 	"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
+	tracingPkg "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
 	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
@@ -73,6 +74,7 @@ func (b *Blobovnicza) Delete(ctx context.Context, prm DeletePrm) (DeleteRes, err
 		b.log.Debug(logs.BlobovniczaObjectWasRemovedFromBucket,
 			zap.String("binary size", stringifyByteSize(dataSize)),
 			zap.String("range", stringifyBounds(sizeLowerBound, sizeUpperBound)),
+			zap.String("trace_id", tracingPkg.GetTraceID(ctx)),
 		)
 		b.itemDeleted(sizeUpperBound)
 	}

pkg/local_object_storage/blobstor/blobovniczatree/delete.go

@@ -9,6 +9,7 @@ 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-node/pkg/local_object_storage/util/logicerr"
+	tracingPkg "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client"
 	apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
@@ -69,6 +70,7 @@ func (b *Blobovniczas) Delete(ctx context.Context, prm common.DeletePrm) (res co
 				b.log.Debug(logs.BlobovniczatreeCouldNotRemoveObjectFromLevel,
 					zap.String("level", p),
 					zap.String("error", err.Error()),
+					zap.String("trace_id", tracingPkg.GetTraceID(ctx)),
 				)
 			}
 		}

pkg/local_object_storage/blobstor/blobovniczatree/exists.go

@@ -8,6 +8,7 @@ import (
 	"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"
+	tracingPkg "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client"
 	"go.opentelemetry.io/otel/attribute"
@@ -56,7 +57,8 @@ func (b *Blobovniczas) Exists(ctx context.Context, prm common.ExistsPrm) (common
 			if !client.IsErrObjectNotFound(err) {
 				b.log.Debug(logs.BlobovniczatreeCouldNotGetObjectFromLevel,
 					zap.String("level", p),
-					zap.String("error", err.Error()))
+					zap.String("error", err.Error()),
+					zap.String("trace_id", tracingPkg.GetTraceID(ctx)))
 			}
 		}
 

pkg/local_object_storage/blobstor/blobovniczatree/get.go

@@ -10,6 +10,7 @@ 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-node/pkg/local_object_storage/util/logicerr"
+	tracingPkg "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client"
 	apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
@@ -69,6 +70,7 @@ func (b *Blobovniczas) Get(ctx context.Context, prm common.GetPrm) (res common.G
 				b.log.Debug(logs.BlobovniczatreeCouldNotGetObjectFromLevel,
 					zap.String("level", p),
 					zap.String("error", err.Error()),
+					zap.String("trace_id", tracingPkg.GetTraceID(ctx)),
 				)
 			}
 		}

pkg/local_object_storage/blobstor/blobovniczatree/get_range.go

@@ -11,6 +11,7 @@ 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-node/pkg/local_object_storage/util/logicerr"
+	tracingPkg "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client"
 	apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
@@ -71,7 +72,7 @@ func (b *Blobovniczas) GetRange(ctx context.Context, prm common.GetRangePrm) (re
 				b.log.Debug(logs.BlobovniczatreeCouldNotGetObjectFromLevel,
 					zap.String("level", p),
 					zap.String("error", err.Error()),
-				)
+					zap.String("trace_id", tracingPkg.GetTraceID(ctx)))
 			}
 			if outOfBounds {
 				return true, err

pkg/local_object_storage/blobstor/blobovniczatree/put.go

@@ -8,6 +8,7 @@ import (
 	"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"
+	tracingPkg "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	"go.opentelemetry.io/otel/attribute"
 	"go.opentelemetry.io/otel/trace"
@@ -81,14 +82,16 @@ func (i *putIterator) iterate(ctx context.Context, lvlPath string) (bool, error)
 			i.B.reportError(logs.BlobovniczatreeCouldNotGetActiveBlobovnicza, err)
 		} else {
 			i.B.log.Debug(logs.BlobovniczatreeCouldNotGetActiveBlobovnicza,
-				zap.String("error", err.Error()))
+				zap.String("error", err.Error()),
+				zap.String("trace_id", tracingPkg.GetTraceID(ctx)))
 		}
 
 		return false, nil
 	}
 
 	if active == nil {
-		i.B.log.Debug(logs.BlobovniczatreeBlobovniczaOverflowed, zap.String("level", lvlPath))
+		i.B.log.Debug(logs.BlobovniczatreeBlobovniczaOverflowed, zap.String("level", lvlPath),
+			zap.String("trace_id", tracingPkg.GetTraceID(ctx)))
 		return false, nil
 	}
 	defer active.Close()
@@ -102,7 +105,8 @@ func (i *putIterator) iterate(ctx context.Context, lvlPath string) (bool, error)
 		} else {
 			i.B.log.Debug(logs.BlobovniczatreeCouldNotPutObjectToActiveBlobovnicza,
 				zap.String("path", active.Path()),
-				zap.String("error", err.Error()))
+				zap.String("error", err.Error()),
+				zap.String("trace_id", tracingPkg.GetTraceID(ctx)))
 		}
 
 		return false, nil

pkg/local_object_storage/blobstor/exists.go

@@ -7,6 +7,7 @@ import (
 
 	"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobstor/common"
+	tracingPkg "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	"go.opentelemetry.io/otel/attribute"
 	"go.opentelemetry.io/otel/trace"
@@ -74,7 +75,8 @@ func (b *BlobStor) Exists(ctx context.Context, prm common.ExistsPrm) (common.Exi
 	for _, err := range errors[:len(errors)-1] {
 		b.log.Warn(logs.BlobstorErrorOccurredDuringObjectExistenceChecking,
 			zap.Stringer("address", prm.Address),
-			zap.String("error", err.Error()))
+			zap.String("error", err.Error()),
+			zap.String("trace_id", tracingPkg.GetTraceID(ctx)))
 	}
 
 	return common.ExistsRes{}, errors[len(errors)-1]

pkg/local_object_storage/engine/delete.go

@@ -6,6 +6,7 @@ import (
 
 	"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/shard"
+	tracingPkg "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client"
 	apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
@@ -150,7 +151,8 @@ func (e *StorageEngine) deleteChildren(ctx context.Context, addr oid.Address, fo
 		if err != nil {
 			e.log.Warn(logs.EngineErrorDuringSearchingForObjectChildren,
 				zap.Stringer("addr", addr),
-				zap.String("error", err.Error()))
+				zap.String("error", err.Error()),
+				zap.String("trace_id", tracingPkg.GetTraceID(ctx)))
 			return false
 		}
 
@@ -161,7 +163,8 @@ func (e *StorageEngine) deleteChildren(ctx context.Context, addr oid.Address, fo
 			if err != nil {
 				e.log.Debug(logs.EngineCouldNotInhumeObjectInShard,
 					zap.Stringer("addr", addr),
-					zap.String("err", err.Error()))
+					zap.String("err", err.Error()),
+					zap.String("trace_id", tracingPkg.GetTraceID(ctx)))
 				continue
 			}
 		}

pkg/local_object_storage/engine/evacuate.go

@@ -11,6 +11,7 @@ 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/util/logicerr"
+	tracingPkg "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util"
 	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	objectSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
@@ -200,11 +201,13 @@ func (e *StorageEngine) evacuateShards(ctx context.Context, shardIDs []string, p
 		e.evacuateLimiter.Complete(err)
 	}()
 
-	e.log.Info(logs.EngineStartedShardsEvacuation, zap.Strings("shard_ids", shardIDs), evacuationOperationLogField)
+	e.log.Info(logs.EngineStartedShardsEvacuation, zap.Strings("shard_ids", shardIDs), evacuationOperationLogField,
+		zap.String("trace_id", tracingPkg.GetTraceID(ctx)))
 
 	err = e.getTotalObjectsCount(ctx, shardsToEvacuate, res)
 	if err != nil {
-		e.log.Error(logs.EngineShardsEvacuationFailedToCount, zap.Strings("shard_ids", shardIDs), zap.Error(err), evacuationOperationLogField)
+		e.log.Error(logs.EngineShardsEvacuationFailedToCount, zap.Strings("shard_ids", shardIDs), zap.Error(err), evacuationOperationLogField,
+			zap.String("trace_id", tracingPkg.GetTraceID(ctx)))
 		return err
 	}
 
@@ -266,7 +269,8 @@ func (e *StorageEngine) evacuateShard(ctx context.Context, shardID string, prm E
 			if errors.Is(err, meta.ErrEndOfListing) || errors.Is(err, shard.ErrDegradedMode) {
 				break
 			}
-			e.log.Error(logs.EngineShardsEvacuationFailedToListObjects, zap.String("shard_id", shardID), zap.Error(err), evacuationOperationLogField)
+			e.log.Error(logs.EngineShardsEvacuationFailedToListObjects, zap.String("shard_id", shardID), zap.Error(err), evacuationOperationLogField,
+				zap.String("trace_id", tracingPkg.GetTraceID(ctx)))
 			return err
 		}
 
@@ -342,7 +346,8 @@ func (e *StorageEngine) evacuateObjects(ctx context.Context, sh *shard.Shard, to
 				res.failed.Add(1)
 				continue
 			}
-			e.log.Error(logs.EngineShardsEvacuationFailedToReadObject, zap.String("address", addr.EncodeToString()), zap.Error(err), evacuationOperationLogField)
+			e.log.Error(logs.EngineShardsEvacuationFailedToReadObject, zap.String("address", addr.EncodeToString()), zap.Error(err), evacuationOperationLogField,
+				zap.String("trace_id", tracingPkg.GetTraceID(ctx)))
 			return err
 		}
 
@@ -363,7 +368,8 @@ func (e *StorageEngine) evacuateObjects(ctx context.Context, sh *shard.Shard, to
 
 		err = prm.handler(ctx, addr, getRes.Object())
 		if err != nil {
-			e.log.Error(logs.EngineShardsEvacuationFailedToMoveObject, zap.String("address", addr.EncodeToString()), zap.Error(err), evacuationOperationLogField)
+			e.log.Error(logs.EngineShardsEvacuationFailedToMoveObject, zap.String("address", addr.EncodeToString()), zap.Error(err), evacuationOperationLogField,
+				zap.String("trace_id", tracingPkg.GetTraceID(ctx)))
 			return err
 		}
 		res.evacuated.Add(1)
@@ -392,7 +398,8 @@ func (e *StorageEngine) tryEvacuateObjectLocal(ctx context.Context, addr oid.Add
 					zap.Stringer("from", sh.ID()),
 					zap.Stringer("to", shards[j].ID()),
 					zap.Stringer("addr", addr),
-					evacuationOperationLogField)
+					evacuationOperationLogField,
+					zap.String("trace_id", tracingPkg.GetTraceID(ctx)))
 			}
 			return true, nil
 		}

pkg/local_object_storage/engine/get.go

@@ -8,6 +8,7 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/shard"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/util"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/util/logicerr"
+	tracingPkg "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client"
 	apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
@@ -105,7 +106,8 @@ func (e *StorageEngine) get(ctx context.Context, prm GetPrm) (GetRes, error) {
 			e.log.Warn(logs.ShardMetaInfoPresentButObjectNotFound,
 				zap.Stringer("shard_id", it.ShardWithMeta.ID()),
 				zap.String("error", it.MetaError.Error()),
-				zap.Stringer("address", prm.addr))
+				zap.Stringer("address", prm.addr),
+				zap.String("trace_id", tracingPkg.GetTraceID(ctx)))
 		}
 	}
 

pkg/local_object_storage/engine/inhume.go

@@ -7,6 +7,7 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
 	meta "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/metabase"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/shard"
+	tracingPkg "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client"
 	apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
@@ -93,7 +94,8 @@ func (e *StorageEngine) inhume(ctx context.Context, prm InhumePrm) (InhumeRes, e
 			if err != nil {
 				e.log.Warn(logs.EngineRemovingAnObjectWithoutFullLockingCheck,
 					zap.Error(err),
-					zap.Stringer("addr", prm.addrs[i]))
+					zap.Stringer("addr", prm.addrs[i]),
+					zap.String("trace_id", tracingPkg.GetTraceID(ctx)))
 			} else if locked {
 				return InhumeRes{}, new(apistatus.ObjectLocked)
 			}
@@ -201,7 +203,8 @@ func (e *StorageEngine) IsLocked(ctx context.Context, addr oid.Address) (bool, e
 	e.iterateOverUnsortedShards(func(h hashedShard) (stop bool) {
 		locked, err = h.Shard.IsLocked(ctx, addr)
 		if err != nil {
-			e.reportShardError(h, "can't check object's lockers", err, zap.Stringer("addr", addr))
+			e.reportShardError(h, "can't check object's lockers", err, zap.Stringer("addr", addr),
+				zap.String("trace_id", tracingPkg.GetTraceID(ctx)))
 			outErr = err
 			return false
 		}

pkg/local_object_storage/engine/put.go

@@ -9,6 +9,7 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobstor"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobstor/common"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/shard"
+	tracingPkg "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util"
 	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	objectSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
@@ -128,6 +129,7 @@ func (e *StorageEngine) putToShard(ctx context.Context, sh hashedShard, ind int,
 					e.log.Warn(logs.EngineCouldNotMarkObjectForShardRelocation,
 						zap.Stringer("shard", sh.ID()),
 						zap.String("error", err.Error()),
+						zap.String("trace_id", tracingPkg.GetTraceID(ctx)),
 					)
 				}
 			}
@@ -144,7 +146,8 @@ func (e *StorageEngine) putToShard(ctx context.Context, sh hashedShard, ind int,
 				errors.Is(err, common.ErrReadOnly) || errors.Is(err, common.ErrNoSpace) {
 				e.log.Warn(logs.EngineCouldNotPutObjectToShard,
 					zap.Stringer("shard_id", sh.ID()),
-					zap.String("error", err.Error()))
+					zap.String("error", err.Error()),
+					zap.String("trace_id", tracingPkg.GetTraceID(ctx)))
 				return
 			}
 

pkg/local_object_storage/engine/range.go

@@ -9,6 +9,7 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/shard"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/util"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/util/logicerr"
+	tracingPkg "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client"
 	apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
@@ -118,7 +119,8 @@ func (e *StorageEngine) getRange(ctx context.Context, prm RngPrm) (RngRes, error
 			e.log.Warn(logs.ShardMetaInfoPresentButObjectNotFound,
 				zap.Stringer("shard_id", it.ShardWithMeta.ID()),
 				zap.String("error", it.MetaError.Error()),
-				zap.Stringer("address", prm.addr))
+				zap.Stringer("address", prm.addr),
+				zap.String("trace_id", tracingPkg.GetTraceID(ctx)))
 		}
 	}
 

pkg/local_object_storage/engine/tree.go

@@ -7,6 +7,7 @@ import (
 
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/pilorama"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/shard"
+	tracingPkg "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	cidSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
 	"go.opentelemetry.io/otel/attribute"
@@ -38,7 +39,8 @@ func (e *StorageEngine) TreeMove(ctx context.Context, d pilorama.CIDDescriptor,
 		if !errors.Is(err, shard.ErrReadOnlyMode) && err != shard.ErrPiloramaDisabled {
 			e.reportShardError(lst[index], "can't perform `TreeMove`", err,
 				zap.Stringer("cid", d.CID),
-				zap.String("tree", treeID))
+				zap.String("tree", treeID),
+				zap.String("trace_id", tracingPkg.GetTraceID(ctx)))
 		}
 
 		return nil, err
@@ -71,7 +73,8 @@ func (e *StorageEngine) TreeAddByPath(ctx context.Context, d pilorama.CIDDescrip
 		if !errors.Is(err, shard.ErrReadOnlyMode) && err != shard.ErrPiloramaDisabled {
 			e.reportShardError(lst[index], "can't perform `TreeAddByPath`", err,
 				zap.Stringer("cid", d.CID),
-				zap.String("tree", treeID))
+				zap.String("tree", treeID),
+				zap.String("trace_id", tracingPkg.GetTraceID(ctx)))
 		}
 		return nil, err
 	}
@@ -99,7 +102,8 @@ func (e *StorageEngine) TreeApply(ctx context.Context, cnr cidSDK.ID, treeID str
 		if !errors.Is(err, shard.ErrReadOnlyMode) && err != shard.ErrPiloramaDisabled {
 			e.reportShardError(lst[index], "can't perform `TreeApply`", err,
 				zap.Stringer("cid", cnr),
-				zap.String("tree", treeID))
+				zap.String("tree", treeID),
+				zap.String("trace_id", tracingPkg.GetTraceID(ctx)))
 		}
 		return err
 	}
@@ -130,7 +134,8 @@ func (e *StorageEngine) TreeGetByPath(ctx context.Context, cid cidSDK.ID, treeID
 			if !errors.Is(err, pilorama.ErrTreeNotFound) {
 				e.reportShardError(sh, "can't perform `TreeGetByPath`", err,
 					zap.Stringer("cid", cid),
-					zap.String("tree", treeID))
+					zap.String("tree", treeID),
+					zap.String("trace_id", tracingPkg.GetTraceID(ctx)))
 			}
 			continue
 		}
@@ -162,7 +167,8 @@ func (e *StorageEngine) TreeGetMeta(ctx context.Context, cid cidSDK.ID, treeID s
 			if !errors.Is(err, pilorama.ErrTreeNotFound) {
 				e.reportShardError(sh, "can't perform `TreeGetMeta`", err,
 					zap.Stringer("cid", cid),
-					zap.String("tree", treeID))
+					zap.String("tree", treeID),
+					zap.String("trace_id", tracingPkg.GetTraceID(ctx)))
 			}
 			continue
 		}
@@ -193,7 +199,8 @@ func (e *StorageEngine) TreeGetChildren(ctx context.Context, cid cidSDK.ID, tree
 			if !errors.Is(err, pilorama.ErrTreeNotFound) {
 				e.reportShardError(sh, "can't perform `TreeGetChildren`", err,
 					zap.Stringer("cid", cid),
-					zap.String("tree", treeID))
+					zap.String("tree", treeID),
+					zap.String("trace_id", tracingPkg.GetTraceID(ctx)))
 			}
 			continue
 		}
@@ -224,7 +231,8 @@ func (e *StorageEngine) TreeGetOpLog(ctx context.Context, cid cidSDK.ID, treeID
 			if !errors.Is(err, pilorama.ErrTreeNotFound) {
 				e.reportShardError(sh, "can't perform `TreeGetOpLog`", err,
 					zap.Stringer("cid", cid),
-					zap.String("tree", treeID))
+					zap.String("tree", treeID),
+					zap.String("trace_id", tracingPkg.GetTraceID(ctx)))
 			}
 			continue
 		}
@@ -253,7 +261,8 @@ func (e *StorageEngine) TreeDrop(ctx context.Context, cid cidSDK.ID, treeID stri
 			if !errors.Is(err, pilorama.ErrTreeNotFound) && !errors.Is(err, shard.ErrReadOnlyMode) {
 				e.reportShardError(sh, "can't perform `TreeDrop`", err,
 					zap.Stringer("cid", cid),
-					zap.String("tree", treeID))
+					zap.String("tree", treeID),
+					zap.String("trace_id", tracingPkg.GetTraceID(ctx)))
 			}
 			continue
 		}
@@ -281,7 +290,8 @@ func (e *StorageEngine) TreeList(ctx context.Context, cid cidSDK.ID) ([]string,
 			}
 
 			e.reportShardError(sh, "can't perform `TreeList`", err,
-				zap.Stringer("cid", cid))
+				zap.Stringer("cid", cid),
+				zap.String("trace_id", tracingPkg.GetTraceID(ctx)))
 
 			// returns as much info about
 			// trees as possible
@@ -347,7 +357,8 @@ func (e *StorageEngine) TreeUpdateLastSyncHeight(ctx context.Context, cid cidSDK
 	if err != nil && !errors.Is(err, shard.ErrReadOnlyMode) && err != shard.ErrPiloramaDisabled {
 		e.reportShardError(lst[index], "can't update tree synchronization height", err,
 			zap.Stringer("cid", cid),
-			zap.String("tree", treeID))
+			zap.String("tree", treeID),
+			zap.String("trace_id", tracingPkg.GetTraceID(ctx)))
 	}
 	return err
 }
@@ -373,7 +384,8 @@ func (e *StorageEngine) TreeLastSyncHeight(ctx context.Context, cid cidSDK.ID, t
 			if !errors.Is(err, pilorama.ErrTreeNotFound) {
 				e.reportShardError(sh, "can't read tree synchronization height", err,
 					zap.Stringer("cid", cid),
-					zap.String("tree", treeID))
+					zap.String("tree", treeID),
+					zap.String("trace_id", tracingPkg.GetTraceID(ctx)))
 			}
 			continue
 		}

pkg/local_object_storage/metabase/storage_id.go

@@ -3,8 +3,10 @@ package meta
 import (
 	"context"
 	"errors"
+	"time"
 
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/internal/metaerr"
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/util/logicerr"
 	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
 	"github.com/nspcc-dev/neo-go/pkg/util/slice"
@@ -93,7 +95,22 @@ func (p *UpdateStorageIDPrm) SetStorageID(id []byte) {
 }
 
 // UpdateStorageID updates storage descriptor for objects from the blobstor.
-func (db *DB) UpdateStorageID(prm UpdateStorageIDPrm) (res UpdateStorageIDRes, err error) {
+func (db *DB) UpdateStorageID(ctx context.Context, prm UpdateStorageIDPrm) (res UpdateStorageIDRes, err error) {
+	var (
+		startedAt = time.Now()
+		success   = false
+	)
+	defer func() {
+		db.metrics.AddMethodDuration("UpdateStorageID", time.Since(startedAt), success)
+	}()
+
+	_, span := tracing.StartSpanFromContext(ctx, "metabase.UpdateStorageID",
+		trace.WithAttributes(
+			attribute.String("address", prm.addr.EncodeToString()),
+			attribute.String("storage_id", string(prm.id)),
+		))
+	defer span.End()
+
 	db.modeMtx.RLock()
 	defer db.modeMtx.RUnlock()
 
@@ -107,12 +124,14 @@ func (db *DB) UpdateStorageID(prm UpdateStorageIDPrm) (res UpdateStorageIDRes, e
 
 	err = db.boltDB.Batch(func(tx *bbolt.Tx) error {
 		exists, err := db.exists(tx, prm.addr, currEpoch)
-		if err == nil && exists || errors.Is(err, ErrObjectIsExpired) {
+		if err == nil && exists {
+			err = updateStorageID(tx, prm.addr, prm.id)
+		} else if errors.As(err, new(logicerr.Logical)) {
 			err = updateStorageID(tx, prm.addr, prm.id)
 		}
 
 		return err
 	})
-
+	success = err == nil
 	return res, metaerr.Wrap(err)
 }

pkg/local_object_storage/metabase/storage_id_test.go

@@ -18,6 +18,7 @@ func TestDB_StorageID(t *testing.T) {
 
 	raw1 := testutil.GenerateObject()
 	raw2 := testutil.GenerateObject()
+	deleted := testutil.GenerateObject()
 
 	storageID := []byte{1, 2, 3, 4}
 
@@ -34,6 +35,15 @@ func TestDB_StorageID(t *testing.T) {
 	err = putBig(db, raw2)
 	require.NoError(t, err)
 
+	// put object with storageID and delete it
+	err = metaPut(db, deleted, storageID)
+	require.NoError(t, err)
+
+	cnrID, ok := deleted.ContainerID()
+	require.True(t, ok)
+	ts := testutil.GenerateObjectWithCID(cnrID)
+	require.NoError(t, metaInhume(db, object.AddressOf(deleted), object.AddressOf(ts)))
+
 	// check StorageID for object without storageID
 	fetchedStorageID, err = metaStorageID(db, object.AddressOf(raw2))
 	require.NoError(t, err)
@@ -44,12 +54,23 @@ func TestDB_StorageID(t *testing.T) {
 	require.NoError(t, err)
 	require.Equal(t, storageID, fetchedStorageID)
 
+	// check StorageID for deleted object with storageID
+	fetchedStorageID, err = metaStorageID(db, object.AddressOf(deleted))
+	require.NoError(t, err)
+	require.Equal(t, storageID, fetchedStorageID)
+
 	t.Run("update", func(t *testing.T) {
+		storageID := []byte{1, 2, 3, 4, 5}
 		require.NoError(t, metaUpdateStorageID(db, object.AddressOf(raw2), storageID))
+		require.NoError(t, metaUpdateStorageID(db, object.AddressOf(deleted), storageID))
 
 		fetchedStorageID, err = metaStorageID(db, object.AddressOf(raw2))
 		require.NoError(t, err)
 		require.Equal(t, storageID, fetchedStorageID)
+
+		fetchedStorageID, err = metaStorageID(db, object.AddressOf(deleted))
+		require.NoError(t, err)
+		require.Equal(t, storageID, fetchedStorageID)
 	})
 }
 
@@ -58,7 +79,7 @@ func metaUpdateStorageID(db *meta.DB, addr oid.Address, id []byte) error {
 	sidPrm.SetAddress(addr)
 	sidPrm.SetStorageID(id)
 
-	_, err := db.UpdateStorageID(sidPrm)
+	_, err := db.UpdateStorageID(context.Background(), sidPrm)
 	return err
 }
 

pkg/local_object_storage/shard/delete.go

@@ -2,14 +2,12 @@ package shard
 
 import (
 	"context"
-	"errors"
 
 	"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobstor/common"
 	meta "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/metabase"
-	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/writecache"
+	tracingPkg "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client"
 	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
 	"go.opentelemetry.io/otel/attribute"
 	"go.opentelemetry.io/otel/trace"
@@ -33,8 +31,7 @@ func (p *DeletePrm) SetAddresses(addr ...oid.Address) {
 	p.addr = append(p.addr, addr...)
 }
 
-// Delete removes data from the shard's writeCache, metaBase and
+// Delete removes data from the shard's metaBase and// blobStor.
-// blobStor.
 func (s *Shard) Delete(ctx context.Context, prm DeletePrm) (DeleteRes, error) {
 	ctx, span := tracing.StartSpanFromContext(ctx, "Shard.Delete",
 		trace.WithAttributes(
@@ -46,10 +43,10 @@ func (s *Shard) Delete(ctx context.Context, prm DeletePrm) (DeleteRes, error) {
 	s.m.RLock()
 	defer s.m.RUnlock()
 
-	return s.delete(ctx, prm)
+	return s.delete(ctx, prm, false)
 }
 
-func (s *Shard) delete(ctx context.Context, prm DeletePrm) (DeleteRes, error) {
+func (s *Shard) delete(ctx context.Context, prm DeletePrm, skipFailed bool) (DeleteRes, error) {
 	if s.info.Mode.ReadOnly() {
 		return DeleteRes{}, ErrReadOnlyMode
 	} else if s.info.Mode.NoMetabase() {
@@ -64,12 +61,18 @@ func (s *Shard) delete(ctx context.Context, prm DeletePrm) (DeleteRes, error) {
 		default:
 		}
 
-		s.deleteObjectFromWriteCacheSafe(ctx, addr)
+		if err := s.deleteFromBlobstor(ctx, addr); err != nil {
-
+			if skipFailed {
-		s.deleteFromBlobstorSafe(ctx, addr)
+				continue
+			}
+			return result, err
+		}
 
 		if err := s.deleteFromMetabase(ctx, addr); err != nil {
-			return result, err // stop on metabase error ?
+			if skipFailed {
+				continue
+			}
+			return result, err
 		}
 		result.deleted++
 	}
@@ -77,16 +80,7 @@ func (s *Shard) delete(ctx context.Context, prm DeletePrm) (DeleteRes, error) {
 	return result, nil
 }
 
-func (s *Shard) deleteObjectFromWriteCacheSafe(ctx context.Context, addr oid.Address) {
+func (s *Shard) deleteFromBlobstor(ctx context.Context, addr oid.Address) error {
-	if s.hasWriteCache() {
-		err := s.writeCache.Delete(ctx, addr)
-		if err != nil && !client.IsErrObjectNotFound(err) && !errors.Is(err, writecache.ErrReadOnly) {
-			s.log.Warn(logs.ShardCantDeleteObjectFromWriteCache, zap.Error(err))
-		}
-	}
-}
-
-func (s *Shard) deleteFromBlobstorSafe(ctx context.Context, addr oid.Address) {
 	var sPrm meta.StorageIDPrm
 	sPrm.SetAddress(addr)
 
@@ -94,7 +88,9 @@ func (s *Shard) deleteFromBlobstorSafe(ctx context.Context, addr oid.Address) {
 	if err != nil {
 		s.log.Debug(logs.StorageIDRetrievalFailure,
 			zap.Stringer("object", addr),
-			zap.String("error", err.Error()))
+			zap.String("error", err.Error()),
+			zap.String("trace_id", tracingPkg.GetTraceID(ctx)))
+		return err
 	}
 	storageID := res.StorageID()
 
@@ -106,8 +102,10 @@ func (s *Shard) deleteFromBlobstorSafe(ctx context.Context, addr oid.Address) {
 	if err != nil {
 		s.log.Debug(logs.ObjectRemovalFailureBlobStor,
 			zap.Stringer("object_address", addr),
-			zap.String("error", err.Error()))
+			zap.String("error", err.Error()),
+			zap.String("trace_id", tracingPkg.GetTraceID(ctx)))
 	}
+	return err
 }
 
 func (s *Shard) deleteFromMetabase(ctx context.Context, addr oid.Address) error {

pkg/local_object_storage/shard/delete_test.go

@@ -52,13 +52,18 @@ func testShardDelete(t *testing.T, hasWriteCache bool) {
 		_, err = testGet(t, sh, getPrm, hasWriteCache)
 		require.NoError(t, err)
 
-		_, err = sh.Delete(context.TODO(), delPrm)
+		if hasWriteCache {
-		require.NoError(t, err)
-
 			require.Eventually(t, func() bool {
+				_, err = sh.Delete(context.Background(), delPrm)
+				return err == nil
+			}, 30*time.Second, 100*time.Millisecond)
+		} else {
+			_, err = sh.Delete(context.Background(), delPrm)
+			require.NoError(t, err)
+		}
+
 		_, err = sh.Get(context.Background(), getPrm)
-			return client.IsErrObjectNotFound(err)
+		require.True(t, client.IsErrObjectNotFound(err))
-		}, time.Second, 50*time.Millisecond)
 	})
 
 	t.Run("small object", func(t *testing.T) {
@@ -78,12 +83,17 @@ func testShardDelete(t *testing.T, hasWriteCache bool) {
 		_, err = sh.Get(context.Background(), getPrm)
 		require.NoError(t, err)
 
+		if hasWriteCache {
+			require.Eventually(t, func() bool {
+				_, err = sh.Delete(context.Background(), delPrm)
+				return err == nil
+			}, 10*time.Second, 100*time.Millisecond)
+		} else {
 			_, err = sh.Delete(context.Background(), delPrm)
 			require.NoError(t, err)
+		}
 
-		require.Eventually(t, func() bool {
 		_, err = sh.Get(context.Background(), getPrm)
-			return client.IsErrObjectNotFound(err)
+		require.True(t, client.IsErrObjectNotFound(err))
-		}, time.Second, 50*time.Millisecond)
 	})
 }

pkg/local_object_storage/shard/gc.go

@@ -297,7 +297,7 @@ func (s *Shard) removeGarbage(pctx context.Context) (result gcRunResult) {
 	deletePrm.SetAddresses(buf...)
 
 	// delete accumulated objects
-	res, err := s.delete(ctx, deletePrm)
+	res, err := s.delete(ctx, deletePrm, true)
 
 	result.deleted = res.deleted
 	result.failedToDelete = uint64(len(buf)) - res.deleted

pkg/local_object_storage/shard/get.go

@@ -10,6 +10,7 @@ import (
 	meta "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/metabase"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/util/logicerr"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/writecache"
+	tracingPkg "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client"
 	apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
@@ -144,12 +145,14 @@ func (s *Shard) fetchObjectData(ctx context.Context, addr oid.Address, skipMeta
 		if client.IsErrObjectNotFound(err) {
 			s.log.Debug(logs.ShardObjectIsMissingInWritecache,
 				zap.Stringer("addr", addr),
-				zap.Bool("skip_meta", skipMeta))
+				zap.Bool("skip_meta", skipMeta),
+				zap.String("trace_id", tracingPkg.GetTraceID(ctx)))
 		} else {
 			s.log.Error(logs.ShardFailedToFetchObjectFromWritecache,
 				zap.Error(err),
 				zap.Stringer("addr", addr),
-				zap.Bool("skip_meta", skipMeta))
+				zap.Bool("skip_meta", skipMeta),
+				zap.String("trace_id", tracingPkg.GetTraceID(ctx)))
 		}
 	}
 	if skipMeta || mErr != nil {

pkg/local_object_storage/shard/inhume.go

@@ -7,6 +7,7 @@ import (
 
 	"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
 	meta "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/metabase"
+	tracingPkg "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
 	"go.opentelemetry.io/otel/attribute"
@@ -110,6 +111,7 @@ func (s *Shard) Inhume(ctx context.Context, prm InhumePrm) (InhumeRes, error) {
 
 		s.log.Debug(logs.ShardCouldNotMarkObjectToDeleteInMetabase,
 			zap.String("error", err.Error()),
+			zap.String("trace_id", tracingPkg.GetTraceID(ctx)),
 		)
 
 		s.m.RUnlock()

pkg/local_object_storage/shard/list.go

@@ -7,6 +7,7 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
 	objectcore "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/core/object"
 	meta "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/metabase"
+	tracingPkg "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
 	objectSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
@@ -99,7 +100,8 @@ func (s *Shard) List(ctx context.Context) (res SelectRes, err error) {
 		if err != nil {
 			s.log.Debug(logs.ShardCantSelectAllObjects,
 				zap.Stringer("cid", lst[i]),
-				zap.String("error", err.Error()))
+				zap.String("error", err.Error()),
+				zap.String("trace_id", tracingPkg.GetTraceID(ctx)))
 
 			continue
 		}

pkg/local_object_storage/shard/move.go

@@ -5,6 +5,7 @@ import (
 
 	"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
 	meta "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/metabase"
+	tracingPkg "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
 	"go.opentelemetry.io/otel/attribute"
@@ -53,6 +54,7 @@ func (s *Shard) ToMoveIt(ctx context.Context, prm ToMoveItPrm) (ToMoveItRes, err
 	if err != nil {
 		s.log.Debug(logs.ShardCouldNotMarkObjectForShardRelocationInMetabase,
 			zap.String("error", err.Error()),
+			zap.String("trace_id", tracingPkg.GetTraceID(ctx)),
 		)
 	}
 

pkg/local_object_storage/writecache/benchmark/writecache_test.go

@@ -91,7 +91,7 @@ func benchmarkPutPrepare(b *testing.B, cache writecache.Cache) {
 
 type testMetabase struct{}
 
-func (testMetabase) UpdateStorageID(meta.UpdateStorageIDPrm) (meta.UpdateStorageIDRes, error) {
+func (testMetabase) UpdateStorageID(context.Context, meta.UpdateStorageIDPrm) (meta.UpdateStorageIDRes, error) {
 	return meta.UpdateStorageIDRes{}, nil
 }
 

pkg/local_object_storage/writecache/writecache.go

@@ -51,7 +51,7 @@ type MainStorage interface {
 
 // Metabase is the interface of the metabase used by Cache implementations.
 type Metabase interface {
-	UpdateStorageID(meta.UpdateStorageIDPrm) (meta.UpdateStorageIDRes, error)
+	UpdateStorageID(context.Context, meta.UpdateStorageIDPrm) (meta.UpdateStorageIDRes, error)
 }
 
 var (

pkg/local_object_storage/writecache/writecachebadger/cachebadger.go

@@ -21,7 +21,7 @@ type cache struct {
 	modeMtx sync.RWMutex
 
 	// flushCh is a channel with objects to flush.
-	flushCh chan *objectSDK.Object
+	flushCh chan objectInfo
 	// scheduled4Flush contains objects scheduled for flush via flushCh
 	// helps to avoid multiple flushing of one object
 	scheduled4Flush    map[oid.Address]struct{}
@@ -52,7 +52,7 @@ const (
 // New creates new writecache instance.
 func New(opts ...Option) writecache.Cache {
 	c := &cache{
-		flushCh:         make(chan *objectSDK.Object),
+		flushCh:         make(chan objectInfo),
 		mode:            mode.ReadWrite,
 		scheduled4Flush: map[oid.Address]struct{}{},
 

pkg/local_object_storage/writecache/writecachebadger/flush.go

@@ -85,7 +85,11 @@ func (c *collector) Send(buf *z.Buffer) error {
 		c.cache.scheduled4FlushMtx.Unlock()
 		c.scheduled++
 		select {
-		case c.cache.flushCh <- obj:
+		case c.cache.flushCh <- objectInfo{
+			addr: addr,
+			data: val,
+			obj:  obj,
+		}:
 		case <-c.cache.closeCh:
 			c.cancel()
 			return nil
@@ -175,22 +179,21 @@ func (c *cache) reportFlushError(msg string, addr string, err error) {
 func (c *cache) workerFlushSmall() {
 	defer c.wg.Done()
 
-	var obj *objectSDK.Object
+	var objInfo objectInfo
 	for {
 		// Give priority to direct put.
 		select {
-		case obj = <-c.flushCh:
+		case objInfo = <-c.flushCh:
 		case <-c.closeCh:
 			return
 		}
 
-		addr := objectCore.AddressOf(obj)
+		err := c.flushObject(context.TODO(), objInfo.obj, objInfo.data, writecache.StorageTypeDB)
-		err := c.flushObject(context.TODO(), obj, nil, writecache.StorageTypeDB)
 		if err == nil {
-			c.deleteFromDB([]internalKey{addr2key(addr)})
+			c.deleteFromDB([]internalKey{addr2key(objInfo.addr)})
 		}
 		c.scheduled4FlushMtx.Lock()
-		delete(c.scheduled4Flush, addr)
+		delete(c.scheduled4Flush, objInfo.addr)
 		c.scheduled4FlushMtx.Unlock()
 	}
 }
@@ -223,7 +226,7 @@ func (c *cache) flushObject(ctx context.Context, obj *objectSDK.Object, data []b
 	updPrm.SetAddress(addr)
 	updPrm.SetStorageID(res.StorageID)
 
-	_, err = c.metabase.UpdateStorageID(updPrm)
+	_, err = c.metabase.UpdateStorageID(ctx, updPrm)
 	if err != nil {
 		c.reportFlushError(logs.FrostFSNodeCantUpdateObjectStorageID,
 			addr.EncodeToString(), err)

pkg/local_object_storage/writecache/writecachebbolt/cachebbolt.go

@@ -29,7 +29,7 @@ type cache struct {
 	compressFlags map[string]struct{}
 
 	// flushCh is a channel with objects to flush.
-	flushCh chan *objectSDK.Object
+	flushCh chan objectInfo
 	// closeCh is close channel, protected by modeMtx.
 	closeCh chan struct{}
 	// wg is a wait group for flush workers.
@@ -62,7 +62,7 @@ var (
 // New creates new writecache instance.
 func New(opts ...Option) writecache.Cache {
 	c := &cache{
-		flushCh: make(chan *objectSDK.Object),
+		flushCh: make(chan objectInfo),
 		mode:    mode.ReadWrite,
 
 		compressFlags: make(map[string]struct{}),

pkg/local_object_storage/writecache/writecachebbolt/flush.go

@@ -79,7 +79,6 @@ func (c *cache) runFlushLoop() {
 
 func (c *cache) flushSmallObjects() {
 	var lastKey []byte
-	var m []objectInfo
 	for {
 		select {
 		case <-c.closeCh:
@@ -87,7 +86,7 @@ func (c *cache) flushSmallObjects() {
 		default:
 		}
 
-		m = m[:0]
+		var m []objectInfo
 
 		c.modeMtx.RLock()
 		if c.readOnly() {
@@ -133,10 +132,11 @@ func (c *cache) flushSmallObjects() {
 			if err := obj.Unmarshal(m[i].data); err != nil {
 				continue
 			}
+			m[i].obj = obj
 
 			count++
 			select {
-			case c.flushCh <- obj:
+			case c.flushCh <- m[i]:
 			case <-c.closeCh:
 				c.modeMtx.RUnlock()
 				return
@@ -231,22 +231,22 @@ func (c *cache) flushFSTree(ctx context.Context, ignoreErrors bool) error {
 func (c *cache) workerFlushSmall() {
 	defer c.wg.Done()
 
-	var obj *objectSDK.Object
+	var objInfo objectInfo
 	for {
 		// Give priority to direct put.
 		select {
-		case obj = <-c.flushCh:
+		case objInfo = <-c.flushCh:
 		case <-c.closeCh:
 			return
 		}
 
-		err := c.flushObject(context.TODO(), obj, nil, writecache.StorageTypeDB)
+		err := c.flushObject(context.TODO(), objInfo.obj, objInfo.data, writecache.StorageTypeDB)
 		if err != nil {
 			// Error is handled in flushObject.
 			continue
 		}
 
-		c.deleteFromDB(objectCore.AddressOf(obj).EncodeToString())
+		c.deleteFromDB(objInfo.addr)
 	}
 }
 
@@ -278,7 +278,7 @@ func (c *cache) flushObject(ctx context.Context, obj *objectSDK.Object, data []b
 	updPrm.SetAddress(addr)
 	updPrm.SetStorageID(res.StorageID)
 
-	_, err = c.metabase.UpdateStorageID(updPrm)
+	_, err = c.metabase.UpdateStorageID(ctx, updPrm)
 	if err != nil {
 		c.reportFlushError(logs.FSTreeCantUpdateID,
 			addr.EncodeToString(), err)

pkg/metrics/consts.go

@@ -20,6 +20,7 @@ const (
 	treeServiceSubsystem     = "treeservice"
 	writeCacheSubsystem      = "writecache"
 	grpcServerSubsystem      = "grpc_server"
+	policerSubsystem         = "policer"
 
 	successLabel          = "success"
 	shardIDLabel          = "shard_id"

pkg/metrics/innerring.go

@@ -4,6 +4,7 @@ import (
 	"strconv"
 	"time"
 
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
 	"git.frostfs.info/TrueCloudLab/frostfs-observability/metrics"
 	"github.com/prometheus/client_golang/prometheus"
 )
@@ -14,6 +15,7 @@ type InnerRingServiceMetrics struct {
 	health            prometheus.Gauge
 	eventDuration     *prometheus.HistogramVec
 	morphCacheMetrics *morphCacheMetrics
+	logMetrics        logger.LogMetrics
 }
 
 // NewInnerRingMetrics returns new instance of metrics collectors for inner ring.
@@ -44,6 +46,7 @@ func NewInnerRingMetrics() *InnerRingServiceMetrics {
 		health:            health,
 		eventDuration:     eventDuration,
 		morphCacheMetrics: newMorphCacheMetrics(innerRingNamespace),
+		logMetrics:        logger.NewLogMetrics(innerRingNamespace),
 	}
 }
 
@@ -67,3 +70,7 @@ func (m *InnerRingServiceMetrics) AddEvent(d time.Duration, typ string, success
 func (m *InnerRingServiceMetrics) MorphCacheMetrics() MorphCacheMetrics {
 	return m.morphCacheMetrics
 }
+
+func (m *InnerRingServiceMetrics) LogMetrics() logger.LogMetrics {
+	return m.logMetrics
+}

pkg/metrics/morph.go

@@ -4,7 +4,6 @@ import (
 	"strconv"
 	"time"
 
-	morphmetrics "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/morph/metrics"
 	"git.frostfs.info/TrueCloudLab/frostfs-observability/metrics"
 	"github.com/prometheus/client_golang/prometheus"
 )
@@ -16,7 +15,7 @@ type morphClientMetrics struct {
 	invokeDuration    *prometheus.HistogramVec
 }
 
-func NewMorphClientMetrics() morphmetrics.Register {
+func newMorphClientMetrics() *morphClientMetrics {
 	return &morphClientMetrics{
 		switchCount: metrics.NewCounter(prometheus.CounterOpts{
 			Namespace: namespace,

pkg/metrics/morphcache.go

@@ -18,10 +18,6 @@ type morphCacheMetrics struct {
 
 var _ MorphCacheMetrics = (*morphCacheMetrics)(nil)
 
-func NewNodeMorphCacheMetrics() MorphCacheMetrics {
-	return newMorphCacheMetrics(namespace)
-}
-
 func newMorphCacheMetrics(ns string) *morphCacheMetrics {
 	return &morphCacheMetrics{
 		methodDuration: metrics.NewHistogramVec(prometheus.HistogramOpts{

pkg/metrics/node.go

@@ -1,6 +1,8 @@
 package metrics
 
 import (
+	morphmetrics "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/morph/metrics"
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
 	"git.frostfs.info/TrueCloudLab/frostfs-observability/metrics"
 	"github.com/prometheus/client_golang/prometheus"
 )
@@ -18,6 +20,10 @@ type NodeMetrics struct {
 	metabase      *metabaseMetrics
 	pilorama      *piloramaMetrics
 	grpc          *grpcServerMetrics
+	policer       *policerMetrics
+	morphClient   *morphClientMetrics
+	morphCache    *morphCacheMetrics
+	log           logger.LogMetrics
 }
 
 func NewNodeMetrics() *NodeMetrics {
@@ -39,6 +45,10 @@ func NewNodeMetrics() *NodeMetrics {
 		metabase:     newMetabaseMetrics(),
 		pilorama:     newPiloramaMetrics(),
 		grpc:         newGrpcServerMetrics(),
+		policer:      newPolicerMetrics(),
+		morphClient:  newMorphClientMetrics(),
+		morphCache:   newMorphCacheMetrics(namespace),
+		log:          logger.NewLogMetrics(namespace),
 	}
 }
 
@@ -90,3 +100,19 @@ func (m *NodeMetrics) PiloramaMetrics() PiloramaMetrics {
 func (m *NodeMetrics) GrpcServerMetrics() GrpcServerMetrics {
 	return m.grpc
 }
+
+func (m *NodeMetrics) PolicerMetrics() PolicerMetrics {
+	return m.policer
+}
+
+func (m *NodeMetrics) MorphClientMetrics() morphmetrics.Register {
+	return m.morphClient
+}
+
+func (m *NodeMetrics) MorphCacheMetrics() MorphCacheMetrics {
+	return m.morphCache
+}
+
+func (m *NodeMetrics) LogMetrics() logger.LogMetrics {
+	return m.log
+}

pkg/metrics/policer.go

@@ -0,0 +1,29 @@
+package metrics
+
+import (
+	"git.frostfs.info/TrueCloudLab/frostfs-observability/metrics"
+	"github.com/prometheus/client_golang/prometheus"
+)
+
+type PolicerMetrics interface {
+	IncProcessedObjects()
+}
+
+type policerMetrics struct {
+	processedObjectsCounter prometheus.Counter
+}
+
+func newPolicerMetrics() *policerMetrics {
+	return &policerMetrics{
+		processedObjectsCounter: metrics.NewCounter(prometheus.CounterOpts{
+			Namespace: namespace,
+			Subsystem: policerSubsystem,
+			Name:      "processed_objects_total",
+			Help:      "Total number of objects processed by policer",
+		}),
+	}
+}
+
+func (m *policerMetrics) IncProcessedObjects() {
+	m.processedObjectsCounter.Inc()
+}

pkg/services/container/announcement/load/controller/calls.go

@@ -1,307 +0,0 @@
-package loadcontroller
-
-import (
-	"context"
-
-	"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
-	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container"
-	"go.uber.org/zap"
-)
-
-// StartPrm groups the required parameters of the Controller.Start method.
-type StartPrm struct {
-	// Epoch number by which you want to select
-	// the values of the used space of containers.
-	Epoch uint64
-}
-
-type commonContext struct {
-	epoch uint64
-
-	ctrl *Controller
-
-	log *logger.Logger
-}
-
-type announcer struct {
-	commonContext
-}
-
-// Start starts the processing of container.SizeEstimation values.
-//
-// Single Start operation overtakes all data from LocalMetrics to
-// LocalAnnouncementTarget (Controller's parameters).
-// No filter by epoch is used for the iterator, since it is expected
-// that the source of metrics does not track the change of epochs.
-//
-// Each call acquires an announcement context for an Epoch parameter.
-// At the very end of the operation, the context is released.
-func (c *Controller) Start(ctx context.Context, prm StartPrm) {
-	var announcer *announcer
-	// acquire announcement
-	ctx, announcer = c.acquireAnnouncement(ctx, prm)
-	if announcer == nil {
-		return
-	}
-
-	// finally stop and free the announcement
-	defer announcer.freeAnnouncement()
-
-	// announce local values
-	announcer.announce(ctx)
-}
-
-func (c *announcer) announce(ctx context.Context) {
-	c.log.Debug(logs.ControllerStartingToAnnounceTheValuesOfTheMetrics)
-
-	var (
-		metricsIterator Iterator
-		err             error
-	)
-
-	// initialize iterator over locally collected metrics
-	metricsIterator, err = c.ctrl.prm.LocalMetrics.InitIterator()
-	if err != nil {
-		c.log.Debug(logs.ControllerCouldNotInitializeIteratorOverLocallyCollectedMetrics,
-			zap.String("error", err.Error()),
-		)
-
-		return
-	}
-
-	// initialize target of local announcements
-	targetWriter, err := c.ctrl.prm.LocalAnnouncementTarget.InitWriter(nil)
-	if err != nil {
-		c.log.Debug(logs.ControllerCouldNotInitializeAnnouncementAccumulator,
-			zap.String("error", err.Error()),
-		)
-
-		return
-	}
-
-	// iterate over all collected metrics and write them to the target
-	err = metricsIterator.Iterate(
-		func(container.SizeEstimation) bool {
-			return true // local metrics don't know about epochs
-		},
-		func(a container.SizeEstimation) error {
-			a.SetEpoch(c.epoch) // set epoch explicitly
-			return targetWriter.Put(a)
-		},
-	)
-	if err != nil {
-		c.log.Debug(logs.ControllerIteratorOverLocallyCollectedMetricsAborted,
-			zap.String("error", err.Error()),
-		)
-
-		return
-	}
-
-	// finish writing
-	err = targetWriter.Close(ctx)
-	if err != nil {
-		c.log.Debug(logs.ControllerCouldNotFinishWritingLocalAnnouncements,
-			zap.String("error", err.Error()),
-		)
-
-		return
-	}
-
-	c.log.Debug(logs.ControllerTrustAnnouncementSuccessfullyFinished)
-}
-
-func (c *Controller) acquireAnnouncement(ctx context.Context, prm StartPrm) (context.Context, *announcer) {
-	started := true
-	c.announceMtx.Lock()
-	{
-		if cancel := c.mAnnounceCtx[prm.Epoch]; cancel == nil {
-			ctx, cancel = context.WithCancel(ctx)
-			c.mAnnounceCtx[prm.Epoch] = cancel
-			started = false
-		}
-	}
-	c.announceMtx.Unlock()
-
-	log := &logger.Logger{Logger: c.opts.log.With(
-		zap.Uint64("epoch", prm.Epoch),
-	)}
-
-	if started {
-		log.Debug(logs.ControllerAnnouncementIsAlreadyStarted)
-		return ctx, nil
-	}
-
-	return ctx, &announcer{
-		commonContext: commonContext{
-			epoch: prm.Epoch,
-			ctrl:  c,
-			log:   log,
-		},
-	}
-}
-
-func (c *commonContext) freeAnnouncement() {
-	var stopped bool
-
-	c.ctrl.announceMtx.Lock()
-
-	{
-		var cancel context.CancelFunc
-
-		cancel, stopped = c.ctrl.mAnnounceCtx[c.epoch]
-
-		if stopped {
-			cancel()
-			delete(c.ctrl.mAnnounceCtx, c.epoch)
-		}
-	}
-
-	c.ctrl.announceMtx.Unlock()
-
-	if stopped {
-		c.log.Debug(logs.ControllerAnnouncementSuccessfullyInterrupted)
-	} else {
-		c.log.Debug(logs.ControllerAnnouncementIsNotStartedOrAlreadyInterrupted)
-	}
-}
-
-// StopPrm groups the required parameters of the Controller.Stop method.
-type StopPrm struct {
-	// Epoch number the analysis of the values of which must be interrupted.
-	Epoch uint64
-}
-
-type reporter struct {
-	commonContext
-}
-
-// Stop interrupts the processing of container.SizeEstimation values.
-//
-// Single Stop operation releases an announcement context and overtakes
-// all data from AnnouncementAccumulator to ResultReceiver (Controller's
-// parameters). Only values for the specified Epoch parameter are processed.
-//
-// Each call acquires a report context for an Epoch parameter.
-// At the very end of the operation, the context is released.
-func (c *Controller) Stop(ctx context.Context, prm StopPrm) {
-	var reporter *reporter
-	ctx, reporter = c.acquireReport(ctx, prm)
-	if reporter == nil {
-		return
-	}
-
-	// finally stop and free reporting
-	defer reporter.freeReport()
-
-	// interrupt announcement
-	reporter.freeAnnouncement()
-
-	// report the estimations
-	reporter.report(ctx)
-}
-
-func (c *Controller) acquireReport(ctx context.Context, prm StopPrm) (context.Context, *reporter) {
-	started := true
-
-	c.reportMtx.Lock()
-	{
-		if cancel := c.mReportCtx[prm.Epoch]; cancel == nil {
-			ctx, cancel = context.WithCancel(ctx)
-			c.mReportCtx[prm.Epoch] = cancel
-			started = false
-		}
-	}
-
-	c.reportMtx.Unlock()
-
-	log := &logger.Logger{Logger: c.opts.log.With(
-		zap.Uint64("epoch", prm.Epoch),
-	)}
-
-	if started {
-		log.Debug(logs.ControllerReportIsAlreadyStarted)
-		return ctx, nil
-	}
-
-	return ctx, &reporter{
-		commonContext: commonContext{
-			epoch: prm.Epoch,
-			ctrl:  c,
-			log:   log,
-		},
-	}
-}
-
-func (c *commonContext) freeReport() {
-	var stopped bool
-
-	c.ctrl.reportMtx.Lock()
-
-	{
-		var cancel context.CancelFunc
-
-		cancel, stopped = c.ctrl.mReportCtx[c.epoch]
-
-		if stopped {
-			cancel()
-			delete(c.ctrl.mReportCtx, c.epoch)
-		}
-	}
-
-	c.ctrl.reportMtx.Unlock()
-
-	if stopped {
-		c.log.Debug(logs.ControllerAnnouncementSuccessfullyInterrupted)
-	} else {
-		c.log.Debug(logs.ControllerAnnouncementIsNotStartedOrAlreadyInterrupted)
-	}
-}
-
-func (c *reporter) report(ctx context.Context) {
-	var (
-		localIterator Iterator
-		err           error
-	)
-
-	// initialize iterator over locally accumulated announcements
-	localIterator, err = c.ctrl.prm.AnnouncementAccumulator.InitIterator()
-	if err != nil {
-		c.log.Debug(logs.ControllerCouldNotInitializeIteratorOverLocallyAccumulatedAnnouncements,
-			zap.String("error", err.Error()),
-		)
-
-		return
-	}
-
-	// initialize final destination of load estimations
-	resultWriter, err := c.ctrl.prm.ResultReceiver.InitWriter(nil)
-	if err != nil {
-		c.log.Debug(logs.ControllerCouldNotInitializeResultTarget,
-			zap.String("error", err.Error()),
-		)
-
-		return
-	}
-
-	// iterate over all accumulated announcements and write them to the target
-	err = localIterator.Iterate(
-		usedSpaceFilterEpochEQ(c.epoch),
-		resultWriter.Put,
-	)
-	if err != nil {
-		c.log.Debug(logs.ControllerIteratorOverLocalAnnouncementsAborted,
-			zap.String("error", err.Error()),
-		)
-
-		return
-	}
-
-	// finish writing
-	err = resultWriter.Close(ctx)
-	if err != nil {
-		c.log.Debug(logs.ControllerCouldNotFinishWritingLoadEstimations,
-			zap.String("error", err.Error()),
-		)
-	}
-}

pkg/services/container/announcement/load/controller/calls_test.go

@@ -1,192 +0,0 @@
-package loadcontroller_test
-
-import (
-	"context"
-	"math/rand"
-	"sync"
-	"testing"
-
-	loadcontroller "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/container/announcement/load/controller"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container"
-	cidtest "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id/test"
-	"github.com/stretchr/testify/require"
-)
-
-type testAnnouncementStorage struct {
-	w loadcontroller.Writer
-
-	i loadcontroller.Iterator
-
-	mtx sync.RWMutex
-
-	m map[uint64][]container.SizeEstimation
-}
-
-func newTestStorage() *testAnnouncementStorage {
-	return &testAnnouncementStorage{
-		m: make(map[uint64][]container.SizeEstimation),
-	}
-}
-
-func (s *testAnnouncementStorage) InitIterator() (loadcontroller.Iterator, error) {
-	if s.i != nil {
-		return s.i, nil
-	}
-
-	return s, nil
-}
-
-func (s *testAnnouncementStorage) Iterate(f loadcontroller.UsedSpaceFilter, h loadcontroller.UsedSpaceHandler) error {
-	s.mtx.RLock()
-	defer s.mtx.RUnlock()
-
-	for _, v := range s.m {
-		for _, a := range v {
-			if f(a) {
-				if err := h(a); err != nil {
-					return err
-				}
-			}
-		}
-	}
-
-	return nil
-}
-
-func (s *testAnnouncementStorage) InitWriter([]loadcontroller.ServerInfo) (loadcontroller.Writer, error) {
-	if s.w != nil {
-		return s.w, nil
-	}
-
-	return s, nil
-}
-
-func (s *testAnnouncementStorage) Put(v container.SizeEstimation) error {
-	s.mtx.Lock()
-	s.m[v.Epoch()] = append(s.m[v.Epoch()], v)
-	s.mtx.Unlock()
-
-	return nil
-}
-
-func (s *testAnnouncementStorage) Close(context.Context) error {
-	return nil
-}
-
-func randAnnouncement() (a container.SizeEstimation) {
-	a.SetContainer(cidtest.ID())
-	a.SetValue(rand.Uint64())
-
-	return
-}
-
-func TestSimpleScenario(t *testing.T) {
-	// create storage to write final estimations
-	resultStorage := newTestStorage()
-
-	// create storages to accumulate announcements
-	accumulatingStorageN2 := newTestStorage()
-
-	// create storage of local metrics
-	localStorageN1 := newTestStorage()
-	localStorageN2 := newTestStorage()
-
-	// create 2 controllers:  1st writes announcements to 2nd, 2nd directly to final destination
-	ctrlN1 := loadcontroller.New(loadcontroller.Prm{
-		LocalMetrics:            localStorageN1,
-		AnnouncementAccumulator: newTestStorage(),
-		LocalAnnouncementTarget: &testAnnouncementStorage{
-			w: accumulatingStorageN2,
-		},
-		ResultReceiver: resultStorage,
-	})
-
-	ctrlN2 := loadcontroller.New(loadcontroller.Prm{
-		LocalMetrics:            localStorageN2,
-		AnnouncementAccumulator: accumulatingStorageN2,
-		LocalAnnouncementTarget: &testAnnouncementStorage{
-			w: resultStorage,
-		},
-		ResultReceiver: resultStorage,
-	})
-
-	const processEpoch uint64 = 10
-
-	const goodNum = 4
-
-	// create 2 random values for processing epoch and 1 for some different
-	announces := make([]container.SizeEstimation, 0, goodNum)
-
-	for i := 0; i < goodNum; i++ {
-		a := randAnnouncement()
-		a.SetEpoch(processEpoch)
-
-		announces = append(announces, a)
-	}
-
-	// store one half of "good" announcements to 1st metrics storage, another - to 2nd
-	// and "bad" to both
-	for i := 0; i < goodNum/2; i++ {
-		require.NoError(t, localStorageN1.Put(announces[i]))
-	}
-
-	for i := goodNum / 2; i < goodNum; i++ {
-		require.NoError(t, localStorageN2.Put(announces[i]))
-	}
-
-	wg := new(sync.WaitGroup)
-	wg.Add(2)
-
-	startPrm := loadcontroller.StartPrm{
-		Epoch: processEpoch,
-	}
-
-	// start both controllers
-	go func() {
-		ctrlN1.Start(context.Background(), startPrm)
-		wg.Done()
-	}()
-
-	go func() {
-		ctrlN2.Start(context.Background(), startPrm)
-		wg.Done()
-	}()
-
-	wg.Wait()
-	wg.Add(2)
-
-	stopPrm := loadcontroller.StopPrm{
-		Epoch: processEpoch,
-	}
-
-	// stop both controllers
-	go func() {
-		ctrlN1.Stop(context.Background(), stopPrm)
-		wg.Done()
-	}()
-
-	go func() {
-		ctrlN2.Stop(context.Background(), stopPrm)
-		wg.Done()
-	}()
-
-	wg.Wait()
-
-	// result target should contain all "good" announcements and shoult not container the "bad" one
-	var res []container.SizeEstimation
-
-	err := resultStorage.Iterate(
-		func(a container.SizeEstimation) bool {
-			return true
-		},
-		func(a container.SizeEstimation) error {
-			res = append(res, a)
-			return nil
-		},
-	)
-	require.NoError(t, err)
-
-	for i := range announces {
-		require.Contains(t, res, announces[i])
-	}
-}

pkg/services/container/announcement/load/controller/controller.go

@@ -1,94 +0,0 @@
-package loadcontroller
-
-import (
-	"context"
-	"fmt"
-	"sync"
-)
-
-// Prm groups the required parameters of the Controller's constructor.
-//
-// All values must comply with the requirements imposed on them.
-// Passing incorrect parameter values will result in constructor
-// failure (error or panic depending on the implementation).
-type Prm struct {
-	// Iterator over the used space values of the containers
-	// collected by the node locally.
-	LocalMetrics IteratorProvider
-
-	// Place of recording the local values of
-	// the used space of containers.
-	LocalAnnouncementTarget WriterProvider
-
-	// Iterator over the summarized used space scores
-	// from the various network participants.
-	AnnouncementAccumulator IteratorProvider
-
-	// Place of recording the final estimates of
-	// the used space of containers.
-	ResultReceiver WriterProvider
-}
-
-// Controller represents main handler for starting
-// and interrupting container volume estimation.
-//
-// It binds the interfaces of the local value stores
-// to the target storage points. Controller is abstracted
-// from the internal storage device and the network location
-// of the connecting components. At its core, it is a
-// high-level start-stop trigger for calculations.
-//
-// For correct operation, the controller must be created
-// using the constructor (New) based on the required parameters
-// and optional components. After successful creation,
-// the constructor is immediately ready to work through
-// API of external control of calculations and data transfer.
-type Controller struct {
-	prm Prm
-
-	opts *options
-
-	announceMtx  sync.Mutex
-	mAnnounceCtx map[uint64]context.CancelFunc
-
-	reportMtx  sync.Mutex
-	mReportCtx map[uint64]context.CancelFunc
-}
-
-const invalidPrmValFmt = "invalid parameter %s (%T):%v"
-
-func panicOnPrmValue(n string, v any) {
-	panic(fmt.Sprintf(invalidPrmValFmt, n, v, v))
-}
-
-// New creates a new instance of the Controller.
-//
-// Panics if at least one value of the parameters is invalid.
-//
-// The created Controller does not require additional
-// initialization and is completely ready for work.
-func New(prm Prm, opts ...Option) *Controller {
-	switch {
-	case prm.LocalMetrics == nil:
-		panicOnPrmValue("LocalMetrics", prm.LocalMetrics)
-	case prm.AnnouncementAccumulator == nil:
-		panicOnPrmValue("AnnouncementAccumulator", prm.AnnouncementAccumulator)
-	case prm.LocalAnnouncementTarget == nil:
-		panicOnPrmValue("LocalAnnouncementTarget", prm.LocalAnnouncementTarget)
-	case prm.ResultReceiver == nil:
-		panicOnPrmValue("ResultReceiver", prm.ResultReceiver)
-	}
-
-	o := defaultOpts()
-
-	for _, opt := range opts {
-		opt(o)
-	}
-
-	return &Controller{
-		prm:          prm,
-		opts:         o,
-		mAnnounceCtx: make(map[uint64]context.CancelFunc),
-		mReportCtx:   make(map[uint64]context.CancelFunc),
-	}
-}

pkg/services/container/announcement/load/controller/deps.go

@@ -1,103 +0,0 @@
-package loadcontroller
-
-import (
-	"context"
-
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container"
-)
-
-// UsedSpaceHandler describes the signature of the container.SizeEstimation
-// value handling function.
-//
-// Termination of processing without failures is usually signaled
-// with a zero error, while a specific value may describe the reason
-// for failure.
-type UsedSpaceHandler func(container.SizeEstimation) error
-
-// UsedSpaceFilter describes the signature of the function for
-// checking whether a value meets a certain criterion.
-//
-// Return of true means conformity, false - vice versa.
-type UsedSpaceFilter func(container.SizeEstimation) bool
-
-// Iterator is a group of methods provided by entity
-// which can iterate over a group of container.SizeEstimation values.
-type Iterator interface {
-	// Iterate must start an iterator over values that
-	// meet the filter criterion (returns true).
-	// For each such value should call a handler, the error
-	// of which should be directly returned from the method.
-	//
-	// Internal failures of the iterator are also signaled via
-	// an error. After a successful call to the last value
-	// handler, nil should be returned.
-	Iterate(UsedSpaceFilter, UsedSpaceHandler) error
-}
-
-// IteratorProvider is a group of methods provided
-// by entity which generates iterators over
-// container.SizeEstimation values.
-type IteratorProvider interface {
-	// InitIterator should return an initialized Iterator.
-	//
-	// Initialization problems are reported via error.
-	// If no error was returned, then the Iterator must not be nil.
-	//
-	// Implementations can have different logic for different
-	// contexts, so specific ones may document their own behavior.
-	InitIterator() (Iterator, error)
-}
-
-// Writer describes the interface for storing container.SizeEstimation values.
-//
-// This interface is provided by both local storage
-// of values and remote (wrappers over the RPC).
-type Writer interface {
-	// Put performs a write operation of container.SizeEstimation value
-	// and returns any error encountered.
-	//
-	// All values after the Close call must be flushed to the
-	// physical target. Implementations can cache values before
-	// Close operation.
-	//
-	// Put must not be called after Close.
-	Put(container.SizeEstimation) error
-
-	// Close exits with method-providing Writer.
-	//
-	// All cached values must be flushed before
-	// the Close's return.
-	//
-	// Methods must not be called after Close.
-	Close(ctx context.Context) error
-}
-
-// WriterProvider is a group of methods provided
-// by entity which generates keepers of
-// container.SizeEstimation values.
-type WriterProvider interface {
-	// InitWriter should return an initialized Writer.
-	//
-	// Initialization problems are reported via error.
-	// If no error was returned, then the Writer must not be nil.
-	InitWriter(route []ServerInfo) (Writer, error)
-}
-
-// ServerInfo describes a set of
-// characteristics of a point in a route.
-type ServerInfo interface {
-	// PublicKey returns public key of the node
-	// from the route in a binary representation.
-	PublicKey() []byte
-
-	// Iterates over network addresses of the node
-	// in the route. Breaks iterating on true return
-	// of the handler.
-	IterateAddresses(func(string) bool)
-
-	// Returns number of server's network addresses.
-	NumberOfAddresses() int
-
-	// ExternalAddresses returns external node's addresses.
-	ExternalAddresses() []string
-}

pkg/services/container/announcement/load/controller/opts.go

@@ -1,28 +0,0 @@
-package loadcontroller
-
-import (
-	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
-	"go.uber.org/zap"
-)
-
-// Option sets an optional parameter of Controller.
-type Option func(*options)
-
-type options struct {
-	log *logger.Logger
-}
-
-func defaultOpts() *options {
-	return &options{
-		log: &logger.Logger{Logger: zap.L()},
-	}
-}
-
-// WithLogger returns option to specify logging component.
-func WithLogger(l *logger.Logger) Option {
-	return func(o *options) {
-		if l != nil {
-			o.log = l
-		}
-	}
-}

pkg/services/container/announcement/load/controller/util.go

@@ -1,36 +0,0 @@
-package loadcontroller
-
-import (
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container"
-)
-
-func usedSpaceFilterEpochEQ(epoch uint64) UsedSpaceFilter {
-	return func(a container.SizeEstimation) bool {
-		return a.Epoch() == epoch
-	}
-}
-
-type storageWrapper struct {
-	w Writer
-	i Iterator
-}
-
-func (s storageWrapper) InitIterator() (Iterator, error) {
-	return s.i, nil
-}
-
-func (s storageWrapper) InitWriter([]ServerInfo) (Writer, error) {
-	return s.w, nil
-}
-
-func SimpleIteratorProvider(i Iterator) IteratorProvider {
-	return &storageWrapper{
-		i: i,
-	}
-}
-
-func SimpleWriterProvider(w Writer) WriterProvider {
-	return &storageWrapper{
-		w: w,
-	}
-}

pkg/services/container/announcement/load/route/calls.go

@@ -1,145 +0,0 @@
-package loadroute
-
-import (
-	"context"
-	"encoding/hex"
-	"sync"
-
-	"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
-	loadcontroller "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/container/announcement/load/controller"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container"
-	"go.uber.org/zap"
-)
-
-// InitWriter initializes and returns Writer that sends each value to its next route point.
-//
-// If route is present, then it is taken into account,
-// and the value will be sent to its continuation. Otherwise, the route will be laid
-// from scratch and the value will be sent to its primary point.
-//
-// After building a list of remote points of the next leg of the route, the value is sent
-// sequentially to all of them. If any transmissions (even all) fail, an error will not
-// be returned.
-//
-// Close of the composed Writer calls Close method on each internal Writer generated in
-// runtime and never returns an error.
-//
-// Always returns nil error.
-func (r *Router) InitWriter(route []loadcontroller.ServerInfo) (loadcontroller.Writer, error) {
-	if len(route) == 0 {
-		route = []loadcontroller.ServerInfo{r.localSrvInfo}
-	}
-
-	return &loadWriter{
-		router:   r,
-		route:    route,
-		mRoute:   make(map[routeKey]*valuesRoute),
-		mServers: make(map[string]loadcontroller.Writer),
-	}, nil
-}
-
-type routeKey struct {
-	epoch uint64
-
-	cid string
-}
-
-type valuesRoute struct {
-	route []loadcontroller.ServerInfo
-
-	values []container.SizeEstimation
-}
-
-type loadWriter struct {
-	router *Router
-
-	route []loadcontroller.ServerInfo
-
-	routeMtx sync.RWMutex
-	mRoute   map[routeKey]*valuesRoute
-
-	mServers map[string]loadcontroller.Writer
-}
-
-func (w *loadWriter) Put(a container.SizeEstimation) error {
-	w.routeMtx.Lock()
-	defer w.routeMtx.Unlock()
-
-	key := routeKey{
-		epoch: a.Epoch(),
-		cid:   a.Container().EncodeToString(),
-	}
-
-	routeValues, ok := w.mRoute[key]
-	if !ok {
-		route, err := w.router.routeBuilder.NextStage(a, w.route)
-		if err != nil {
-			return err
-		} else if len(route) == 0 {
-			route = []loadcontroller.ServerInfo{nil}
-		}
-
-		routeValues = &valuesRoute{
-			route:  route,
-			values: []container.SizeEstimation{a},
-		}
-
-		w.mRoute[key] = routeValues
-	}
-
-	for _, remoteInfo := range routeValues.route {
-		var key string
-
-		if remoteInfo != nil {
-			key = hex.EncodeToString(remoteInfo.PublicKey())
-		}
-
-		remoteWriter, ok := w.mServers[key]
-		if !ok {
-			provider, err := w.router.remoteProvider.InitRemote(remoteInfo)
-			if err != nil {
-				w.router.log.Debug(logs.RouteCouldNotInitializeWriterProvider,
-					zap.String("error", err.Error()),
-				)
-
-				continue // best effort
-			}
-
-			remoteWriter, err = provider.InitWriter(w.route)
-			if err != nil {
-				w.router.log.Debug(logs.RouteCouldNotInitializeWriter,
-					zap.String("error", err.Error()),
-				)
-
-				continue // best effort
-			}
-
-			w.mServers[key] = remoteWriter
-		}
-
-		err := remoteWriter.Put(a)
-		if err != nil {
-			w.router.log.Debug(logs.RouteCouldNotPutTheValue,
-				zap.String("error", err.Error()),
-			)
-		}
-
-		// continue best effort
-	}
-
-	return nil
-}
-
-func (w *loadWriter) Close(ctx context.Context) error {
-	for key, wRemote := range w.mServers {
-		err := wRemote.Close(ctx)
-		if err != nil {
-			w.router.log.Debug(logs.RouteCouldNotCloseRemoteServerWriter,
-				zap.String("key", key),
-				zap.String("error", err.Error()),
-			)
-		}
-	}
-
-	return nil
-}

pkg/services/container/announcement/load/route/deps.go

@@ -1,31 +0,0 @@
-package loadroute
-
-import (
-	loadcontroller "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/container/announcement/load/controller"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container"
-)
-
-// Builder groups methods to route values in the network.
-type Builder interface {
-	// NextStage must return next group of route points for the value a
-	// based on the passed route.
-	//
-	// Empty passed list means being at the starting point of the route.
-	//
-	// Must return empty list and no error if the endpoint of the route is reached.
-	// If there are more than one point to go and the last passed point is included
-	// in that list (means that point is the last point in one of the route groups),
-	// returned route must contain nil point that should be interpreted as signal to,
-	// among sending to other route points, save the announcement in that point.
-	NextStage(a container.SizeEstimation, passed []loadcontroller.ServerInfo) ([]loadcontroller.ServerInfo, error)
-}
-
-// RemoteWriterProvider describes the component
-// for sending values to a fixed route point.
-type RemoteWriterProvider interface {
-	// InitRemote must return WriterProvider to the route point
-	// corresponding to info.
-	//
-	// Nil info matches the end of the route.
-	InitRemote(info loadcontroller.ServerInfo) (loadcontroller.WriterProvider, error)
-}

pkg/services/container/announcement/load/route/opts.go

@@ -1,28 +0,0 @@
-package loadroute
-
-import (
-	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
-	"go.uber.org/zap"
-)
-
-// Option sets an optional parameter of Router.
-type Option func(*options)
-
-type options struct {
-	log *logger.Logger
-}
-
-func defaultOpts() *options {
-	return &options{
-		log: &logger.Logger{Logger: zap.L()},
-	}
-}
-
-// WithLogger returns Option to specify logging component.
-func WithLogger(l *logger.Logger) Option {
-	return func(o *options) {
-		if l != nil {
-			o.log = l
-		}
-	}
-}

pkg/services/container/announcement/load/route/placement/builder.go

@@ -1,49 +0,0 @@
-package placementrouter
-
-import "fmt"
-
-// Prm groups the required parameters of the Builder's constructor.
-//
-// All values must comply with the requirements imposed on them.
-// Passing incorrect parameter values will result in constructor
-// failure (error or panic depending on the implementation).
-type Prm struct {
-	// Calculator of the container members.
-	//
-	// Must not be nil.
-	PlacementBuilder PlacementBuilder
-}
-
-// Builder represents component that routes used container space
-// values between nodes from the container.
-//
-// For correct operation, Builder must be created using
-// the constructor (New) based on the required parameters
-// and optional components. After successful creation,
-// the Builder is immediately ready to work through API.
-type Builder struct {
-	placementBuilder PlacementBuilder
-}
-
-const invalidPrmValFmt = "invalid parameter %s (%T):%v"
-
-func panicOnPrmValue(n string, v any) {
-	panic(fmt.Sprintf(invalidPrmValFmt, n, v, v))
-}
-
-// New creates a new instance of the Builder.
-//
-// Panics if at least one value of the parameters is invalid.
-//
-// The created Builder does not require additional
-// initialization and is completely ready for work.
-func New(prm Prm) *Builder {
-	switch {
-	case prm.PlacementBuilder == nil:
-		panicOnPrmValue("PlacementBuilder", prm.PlacementBuilder)
-	}
-
-	return &Builder{
-		placementBuilder: prm.PlacementBuilder,
-	}
-}

pkg/services/container/announcement/load/route/placement/calls.go

@@ -1,47 +0,0 @@
-package placementrouter
-
-import (
-	"bytes"
-	"fmt"
-
-	netmapcore "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/core/netmap"
-	loadcontroller "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/container/announcement/load/controller"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container"
-)
-
-// NextStage composes container nodes for the container and epoch from a,
-// and returns the list of nodes with maximum weight (one from each vector).
-//
-// If passed route has more than one point, then endpoint of the route is reached.
-//
-// The traversed route is not checked, it is assumed to be correct.
-func (b *Builder) NextStage(a container.SizeEstimation, passed []loadcontroller.ServerInfo) ([]loadcontroller.ServerInfo, error) {
-	if len(passed) > 1 {
-		return nil, nil
-	}
-
-	cnr := a.Container()
-
-	placement, err := b.placementBuilder.BuildPlacement(a.Epoch(), cnr)
-	if err != nil {
-		return nil, fmt.Errorf("could not build placement %s: %w", cnr, err)
-	}
-
-	res := make([]loadcontroller.ServerInfo, 0, len(placement))
-
-	for i := range placement {
-		if len(placement[i]) == 0 {
-			continue
-		}
-
-		if len(passed) == 1 && bytes.Equal(passed[0].PublicKey(), placement[i][0].PublicKey()) {
-			// add nil element so the announcement will be saved in local memory
-			res = append(res, nil)
-		} else {
-			// add element with remote node to send announcement to
-			res = append(res, netmapcore.Node(placement[i][0]))
-		}
-	}
-
-	return res, nil
-}

pkg/services/container/announcement/load/route/placement/deps.go

@@ -1,14 +0,0 @@
-package placementrouter
-
-import (
-	cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/netmap"
-)
-
-// PlacementBuilder describes interface of FrostFS placement calculator.
-type PlacementBuilder interface {
-	// BuildPlacement must compose and sort (according to a specific algorithm)
-	// storage nodes from the container by its identifier using network map
-	// of particular epoch.
-	BuildPlacement(epoch uint64, cnr cid.ID) ([][]netmap.NodeInfo, error)
-}

pkg/services/container/announcement/load/route/router.go

@@ -1,87 +0,0 @@
-package loadroute
-
-import (
-	"fmt"
-
-	loadcontroller "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/container/announcement/load/controller"
-	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
-)
-
-// Prm groups the required parameters of the Router's constructor.
-//
-// All values must comply with the requirements imposed on them.
-// Passing incorrect parameter values will result in constructor
-// failure (error or panic depending on the implementation).
-type Prm struct {
-	// Characteristics of the local node's server.
-	//
-	// Must not be nil.
-	LocalServerInfo loadcontroller.ServerInfo
-
-	// Component for sending values to a fixed route point.
-	//
-	// Must not be nil.
-	RemoteWriterProvider RemoteWriterProvider
-
-	// Route planner.
-	//
-	// Must not be nil.
-	Builder Builder
-}
-
-// Router represents component responsible for routing
-// used container space values over the network.
-//
-// For each fixed pair (container ID, epoch) there is a
-// single value route on the network. Router provides the
-// interface for writing values to the next point of the route.
-//
-// For correct operation, Router must be created using
-// the constructor (New) based on the required parameters
-// and optional components. After successful creation,
-// the Router is immediately ready to work through API.
-type Router struct {
-	log *logger.Logger
-
-	remoteProvider RemoteWriterProvider
-
-	routeBuilder Builder
-
-	localSrvInfo loadcontroller.ServerInfo
-}
-
-const invalidPrmValFmt = "invalid parameter %s (%T):%v"
-
-func panicOnPrmValue(n string, v any) {
-	panic(fmt.Sprintf(invalidPrmValFmt, n, v, v))
-}
-
-// New creates a new instance of the Router.
-//
-// Panics if at least one value of the parameters is invalid.
-//
-// The created Router does not require additional
-// initialization and is completely ready for work.
-func New(prm Prm, opts ...Option) *Router {
-	switch {
-	case prm.RemoteWriterProvider == nil:
-		panicOnPrmValue("RemoteWriterProvider", prm.RemoteWriterProvider)
-	case prm.Builder == nil:
-		panicOnPrmValue("Builder", prm.Builder)
-	case prm.LocalServerInfo == nil:
-		panicOnPrmValue("LocalServerInfo", prm.LocalServerInfo)
-	}
-
-	o := defaultOpts()
-
-	for i := range opts {
-		opts[i](o)
-	}
-
-	return &Router{
-		log:            o.log,
-		remoteProvider: prm.RemoteWriterProvider,
-		routeBuilder:   prm.Builder,
-		localSrvInfo:   prm.LocalServerInfo,
-	}
-}

pkg/services/container/announcement/load/route/util.go

@@ -1,49 +0,0 @@
-package loadroute
-
-import (
-	"bytes"
-	"errors"
-
-	loadcontroller "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/container/announcement/load/controller"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container"
-)
-
-var errWrongRoute = errors.New("wrong route")
-
-// CheckRoute checks if the route is a route correctly constructed by the builder for value a.
-//
-// Returns nil if route is correct, otherwise an error clarifying the inconsistency.
-func CheckRoute(builder Builder, a container.SizeEstimation, route []loadcontroller.ServerInfo) error {
-	for i := 1; i < len(route); i++ {
-		servers, err := builder.NextStage(a, route[:i])
-		if err != nil {
-			return err
-		} else if len(servers) == 0 {
-			break
-		}
-
-		found := false
-
-		for j := range servers {
-			if servers[j] == nil {
-				// nil route point means that
-				// (i-1)-th node in the route
-				// must, among other things,
-				// save the announcement to its
-				// local memory
-				continue
-			}
-
-			if bytes.Equal(servers[j].PublicKey(), route[i].PublicKey()) {
-				found = true
-				break
-			}
-		}
-
-		if !found {
-			return errWrongRoute
-		}
-	}
-
-	return nil
-}

pkg/services/container/announcement/load/storage/storage.go

@@ -1,151 +0,0 @@
-package loadstorage
-
-import (
-	"context"
-	"sort"
-	"sync"
-
-	loadcontroller "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/container/announcement/load/controller"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container"
-)
-
-type usedSpaceEstimations struct {
-	announcement container.SizeEstimation
-
-	sizes []uint64
-}
-
-type storageKey struct {
-	epoch uint64
-
-	cid string
-}
-
-// Storage represents in-memory storage of
-// container.SizeEstimation values.
-//
-// The write operation has the usual behavior - to save
-// the next number of used container space for a specific epoch.
-// All values related to one key (epoch, container ID) are stored
-// as a list.
-//
-// Storage also provides an iterator interface, into the handler
-// of which the final score is passed, built on all values saved
-// at the time of the call. Currently the only possible estimation
-// formula is used - the average between 10th and 90th percentile.
-//
-// For correct operation, Storage must be created
-// using the constructor (New) based on the required parameters
-// and optional components. After successful creation,
-// Storage is immediately ready to work through API.
-type Storage struct {
-	mtx sync.RWMutex
-
-	mItems map[storageKey]*usedSpaceEstimations
-}
-
-// Prm groups the required parameters of the Storage's constructor.
-//
-// The component is not parameterizable at the moment.
-type Prm struct{}
-
-// New creates a new instance of the Storage.
-//
-// The created Storage does not require additional
-// initialization and is completely ready for work.
-func New(_ Prm) *Storage {
-	return &Storage{
-		mItems: make(map[storageKey]*usedSpaceEstimations),
-	}
-}
-
-// Put appends the next value of the occupied container space for the epoch
-// to the list of already saved values.
-//
-// Always returns nil error.
-func (s *Storage) Put(a container.SizeEstimation) error {
-	s.mtx.Lock()
-
-	{
-		key := storageKey{
-			epoch: a.Epoch(),
-			cid:   a.Container().EncodeToString(),
-		}
-
-		estimations, ok := s.mItems[key]
-		if !ok {
-			estimations = &usedSpaceEstimations{
-				announcement: a,
-				sizes:        make([]uint64, 0, 1),
-			}
-
-			s.mItems[key] = estimations
-		}
-
-		estimations.sizes = append(estimations.sizes, a.Value())
-	}
-
-	s.mtx.Unlock()
-
-	return nil
-}
-
-func (s *Storage) Close(context.Context) error {
-	return nil
-}
-
-// Iterate goes through all the lists with the key (container ID, epoch),
-// calculates the final grade for all values, and passes it to the handler.
-//
-// Final grade is the average between 10th and 90th percentiles.
-func (s *Storage) Iterate(f loadcontroller.UsedSpaceFilter, h loadcontroller.UsedSpaceHandler) (err error) {
-	s.mtx.RLock()
-
-	{
-		for _, v := range s.mItems {
-			if f(v.announcement) {
-				// calculate estimation based on 90th percentile
-				v.announcement.SetValue(finalEstimation(v.sizes))
-
-				if err = h(v.announcement); err != nil {
-					break
-				}
-			}
-		}
-	}
-
-	s.mtx.RUnlock()
-
-	return
-}
-
-func finalEstimation(vals []uint64) uint64 {
-	sort.Slice(vals, func(i, j int) bool {
-		return vals[i] < vals[j]
-	})
-
-	const (
-		lowerRank = 10
-		upperRank = 90
-	)
-
-	if len(vals) >= lowerRank {
-		lowerInd := percentile(lowerRank, vals)
-		upperInd := percentile(upperRank, vals)
-
-		vals = vals[lowerInd:upperInd]
-	}
-
-	sum := uint64(0)
-
-	for i := range vals {
-		sum += vals[i]
-	}
-
-	return sum / uint64(len(vals))
-}
-
-func percentile(rank int, vals []uint64) int {
-	p := len(vals) * rank / 100
-	return p
-}

pkg/services/container/announcement/load/storage/storage_test.go

@@ -1,50 +0,0 @@
-package loadstorage
-
-import (
-	"math/rand"
-	"testing"
-
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container"
-	cidtest "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id/test"
-	"github.com/stretchr/testify/require"
-)
-
-func TestStorage(t *testing.T) {
-	const epoch uint64 = 13
-
-	var a container.SizeEstimation
-	a.SetContainer(cidtest.ID())
-	a.SetEpoch(epoch)
-
-	const opinionsNum = 100
-
-	s := New(Prm{})
-
-	opinions := make([]uint64, opinionsNum)
-	for i := range opinions {
-		opinions[i] = rand.Uint64()
-
-		a.SetValue(opinions[i])
-
-		require.NoError(t, s.Put(a))
-	}
-
-	iterCounter := 0
-
-	err := s.Iterate(
-		func(ai container.SizeEstimation) bool {
-			return ai.Epoch() == epoch
-		},
-		func(ai container.SizeEstimation) error {
-			iterCounter++
-
-			require.Equal(t, epoch, ai.Epoch())
-			require.Equal(t, a.Container(), ai.Container())
-			require.Equal(t, finalEstimation(opinions), ai.Value())
-
-			return nil
-		},
-	)
-	require.NoError(t, err)
-	require.Equal(t, 1, iterCounter)
-}

pkg/services/object/put/single.go

@@ -22,6 +22,7 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/object/internal"
 	svcutil "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/object/util"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/object_manager/placement"
+	tracingPkg "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/checksum"
 	objectSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
@@ -242,8 +243,7 @@ func (s *Service) redirectPutSingleRequest(ctx context.Context,
 	info.AddressGroup().IterateAddresses(func(addr network.Address) (stop bool) {
 		ctx, span := tracing.StartSpanFromContext(ctx, "putService.redirectPutSingleRequest.IterateAddresses",
 			trace.WithAttributes(
-				attribute.String("address", addr.String()),
+				attribute.String("address", addr.String())))
-			))
 		defer span.End()
 
 		var err error
@@ -257,6 +257,7 @@ func (s *Service) redirectPutSingleRequest(ctx context.Context,
 					zap.Stringer("address", addr),
 					zap.Stringer("object_id", objID),
 					zap.Stringer("container_id", cnrID),
+					zap.String("trace_id", tracingPkg.GetTraceID(ctx)),
 				)
 			}
 

pkg/services/policer/metrics.go

@@ -0,0 +1,9 @@
+package policer
+
+type MetricsRegister interface {
+	IncProcessedObjects()
+}
+
+type noopMetrics struct{}
+
+func (noopMetrics) IncProcessedObjects() {}

pkg/services/policer/option.go

@@ -69,6 +69,8 @@ type cfg struct {
 	batchSize, cacheSize uint32
 
 	rebalanceFreq, evictDuration, sleepDuration time.Duration
+
+	metrics MetricsRegister
 }
 
 func defaultCfg() *cfg {
@@ -79,6 +81,7 @@ func defaultCfg() *cfg {
 		rebalanceFreq: 1 * time.Second,
 		sleepDuration: 1 * time.Second,
 		evictDuration: 30 * time.Second,
+		metrics:       noopMetrics{},
 	}
 }
 
@@ -170,3 +173,10 @@ func WithPool(p *ants.Pool) Option {
 		c.taskPool = p
 	}
 }
+
+// WithMetrics returns option to set metrics.
+func WithMetrics(m MetricsRegister) Option {
+	return func(c *cfg) {
+		c.metrics = m
+	}
+}

pkg/services/policer/process.go

@@ -60,6 +60,7 @@ func (p *Policer) shardPolicyWorker(ctx context.Context) {
 						}
 						p.cache.Add(addr.Address, time.Now())
 						p.objsInWork.remove(addr.Address)
+						p.metrics.IncProcessedObjects()
 					}
 				})
 				if err != nil {

pkg/services/replicator/process.go

@@ -6,6 +6,7 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/engine"
 	putsvc "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/object/put"
+	tracingPkg "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/netmap"
 	"go.opentelemetry.io/otel/attribute"
@@ -44,7 +45,8 @@ func (p *Replicator) HandleTask(ctx context.Context, task Task, res TaskResult)
 		if err != nil {
 			p.log.Error(logs.ReplicatorCouldNotGetObjectFromLocalStorage,
 				zap.Stringer("object", task.Addr),
-				zap.Error(err))
+				zap.Error(err),
+				zap.String("trace_id", tracingPkg.GetTraceID(ctx)))
 
 			return
 		}
@@ -63,6 +65,7 @@ func (p *Replicator) HandleTask(ctx context.Context, task Task, res TaskResult)
 		log := p.log.With(
 			zap.String("node", netmap.StringifyPublicKey(task.Nodes[i])),
 			zap.Stringer("object", task.Addr),
+			zap.String("trace_id", tracingPkg.GetTraceID(ctx)),
 		)
 
 		callCtx, cancel := context.WithTimeout(ctx, p.putTimeout)

pkg/services/tree/redirect.go

@@ -6,6 +6,7 @@ import (
 	"errors"
 
 	"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
+	tracingPkg "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	netmapSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/netmap"
 	"go.opentelemetry.io/otel/attribute"
@@ -39,7 +40,9 @@ func (s *Service) forEachNode(ctx context.Context, cntNodes []netmapSDK.NodeInfo
 				return false
 			}
 
-			s.log.Debug(logs.TreeRedirectingTreeServiceQuery, zap.String("endpoint", endpoint))
+			s.log.Debug(logs.TreeRedirectingTreeServiceQuery, zap.String("endpoint", endpoint),
+				zap.String("trace_id", tracingPkg.GetTraceID(ctx)))
+
 			called = true
 			stop = f(c)
 			return true

pkg/services/tree/replicator.go

@@ -10,6 +10,7 @@ import (
 
 	"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/pilorama"
+	tracingPkg "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	cidSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
 	netmapSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/netmap"
@@ -107,12 +108,14 @@ func (s *Service) replicationWorker(ctx context.Context) {
 			if lastErr != nil {
 				if errors.Is(lastErr, errRecentlyFailed) {
 					s.log.Debug(logs.TreeDoNotSendUpdateToTheNode,
-						zap.String("last_error", lastErr.Error()))
+						zap.String("last_error", lastErr.Error()),
+						zap.String("trace_id", tracingPkg.GetTraceID(ctx)))
 				} else {
 					s.log.Warn(logs.TreeFailedToSentUpdateToTheNode,
 						zap.String("last_error", lastErr.Error()),
 						zap.String("address", lastAddr),
-						zap.String("key", hex.EncodeToString(task.n.PublicKey())))
+						zap.String("key", hex.EncodeToString(task.n.PublicKey())),
+						zap.String("trace_id", tracingPkg.GetTraceID(ctx)))
 				}
 				s.metrics.AddReplicateTaskDuration(time.Since(start), false)
 			} else {

pkg/tracing/trace.go

@@ -0,0 +1,19 @@
+package tracing
+
+import (
+	"context"
+
+	"go.opentelemetry.io/otel/trace"
+)
+
+var emptyTraceID = [16]byte{}
+
+// GetTraceID retrieves the trace ID from the provided context.
+// It returns an empty string if no trace ID is found.
+func GetTraceID(ctx context.Context) string {
+	span := trace.SpanFromContext(ctx)
+	if span == nil || span.SpanContext().TraceID() == emptyTraceID {
+		return ""
+	}
+	return span.SpanContext().TraceID().String()
+}

pkg/util/logger/logger.go

@@ -31,8 +31,8 @@ type Prm struct {
 	// support runtime rereading
 	level zapcore.Level
 
-	// MetricsNamespace is the namespace string used for log counter metrics
+	// SamplingHook hook for the zap.Logger
-	MetricsNamespace string
+	SamplingHook func(e zapcore.Entry, sd zapcore.SamplingDecision)
 
 	// do not support runtime rereading
 }
@@ -82,14 +82,12 @@ func NewLogger(prm *Prm) (*Logger, error) {
 
 	lvl := zap.NewAtomicLevelAt(prm.level)
 
-	m := newLogMetrics(prm.MetricsNamespace)
-
 	c := zap.NewProductionConfig()
 	c.Level = lvl
 	c.Encoding = "console"
 	c.EncoderConfig.EncodeTime = zapcore.ISO8601TimeEncoder
-	c.Sampling.Hook = func(e zapcore.Entry, sd zapcore.SamplingDecision) {
+	if prm.SamplingHook != nil {
-		m.Inc(e.Level, sd == zapcore.LogDropped)
+		c.Sampling.Hook = prm.SamplingHook
 	}
 
 	lZap, err := c.Build(

pkg/util/logger/metrics.go

@@ -14,11 +14,16 @@ const (
 	logDroppedLabel = "dropped"
 )
 
+type LogMetrics interface {
+	Inc(level zapcore.Level, dropped bool)
+	GetSamplingHook() func(e zapcore.Entry, sd zapcore.SamplingDecision)
+}
+
 type logMetrics struct {
 	logCount *prometheus.CounterVec
 }
 
-func newLogMetrics(namespace string) *logMetrics {
+func NewLogMetrics(namespace string) LogMetrics {
 	return &logMetrics{
 		logCount: metrics.NewCounterVec(prometheus.CounterOpts{
 			Namespace: namespace,
@@ -35,3 +40,9 @@ func (m *logMetrics) Inc(level zapcore.Level, dropped bool) {
 		logDroppedLabel: strconv.FormatBool(dropped),
 	}).Inc()
 }
+
+func (m *logMetrics) GetSamplingHook() func(zapcore.Entry, zapcore.SamplingDecision) {
+	return func(e zapcore.Entry, sd zapcore.SamplingDecision) {
+		m.Inc(e.Level, sd == zapcore.LogDropped)
+	}
+}