Update sdk

Signed-off-by: Marina Biryukova <m.biryukova@yadro.com>
Add go traces regions and tasks
2024-07-31 16:33:35 +03:00 · 2024-07-31 15:08:46 +03:00 · 2024-07-31 14:57:06 +03:00 · 2024-07-25 14:31:33 +03:00 · 2024-07-24 16:38:48 +03:00 · 2024-07-23 16:47:05 +03:00
55 changed files with 502 additions and 1032 deletions
--- a/.docker/Dockerfile
+++ b/.docker/Dockerfile
@ -1,4 +1,4 @@
-FROM golang:1.21 AS builder
+FROM golang:1.21 as builder

 ARG BUILD=now
 ARG REPO=git.frostfs.info/TrueCloudLab/frostfs-s3-gw
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@ -4,6 +4,14 @@ This document outlines major changes between releases.

 ## [Unreleased]

+## [0.30.1] - 2024-07-25
+
+### Fixed
+- Redundant system node removal in tree service (#437)
+
+### Added
+- Log details on SDK Pool health status change (#439)
+
 ## [0.30.0] - Kangshung -2024-07-19

 ### Fixed
@ -233,4 +241,5 @@ To see CHANGELOG for older versions, refer to https://github.com/nspcc-dev/neofs
 [0.29.2]: https://git.frostfs.info/TrueCloudLab/frostfs-s3-gw/compare/v0.29.1...v0.29.2
 [0.29.3]: https://git.frostfs.info/TrueCloudLab/frostfs-s3-gw/compare/v0.29.2...v0.29.3
 [0.30.0]: https://git.frostfs.info/TrueCloudLab/frostfs-s3-gw/compare/v0.29.3...v0.30.0
-[Unreleased]: https://git.frostfs.info/TrueCloudLab/frostfs-s3-gw/compare/v0.30.0...master
+[0.30.1]: https://git.frostfs.info/TrueCloudLab/frostfs-s3-gw/compare/v0.30.0...v0.30.1
+[Unreleased]: https://git.frostfs.info/TrueCloudLab/frostfs-s3-gw/compare/v0.30.1...master
--- a/2
+++ b/2
@ -1 +1 @@
-v0.30.0
+v0.30.1
--- a/api/auth/center.go
+++ b/api/auth/center.go
@ -270,9 +270,7 @@ func (c *Center) checkFormData(r *http.Request) (*middleware.Box, error) {
 		return nil, fmt.Errorf("failed to parse x-amz-date field: %w", err)
 	}

-	accessKeyID := submatches["access_key_id"]
-
-	addr, err := getAddress(accessKeyID)
+	addr, err := getAddress(submatches["access_key_id"])
 	if err != nil {
 		return nil, err
 	}
@ -285,22 +283,14 @@ func (c *Center) checkFormData(r *http.Request) (*middleware.Box, error) {
 	secret := box.Gate.SecretKey
 	service, region := submatches["service"], submatches["region"]

-	signature := SignStr(secret, service, region, signatureDateTime, policy)
+	signature := signStr(secret, service, region, signatureDateTime, policy)
 	reqSignature := MultipartFormValue(r, "x-amz-signature")
 	if signature != reqSignature {
 		return nil, fmt.Errorf("%w: %s != %s", apiErrors.GetAPIError(apiErrors.ErrSignatureDoesNotMatch),
 			reqSignature, signature)
 	}

-	return &middleware.Box{
-		AccessBox: box,
-		AuthHeaders: &middleware.AuthHeader{
-			AccessKeyID: accessKeyID,
-			Region:      region,
-			SignatureV4: signature,
-		},
-		Attributes: attrs,
-	}, nil
+	return &middleware.Box{AccessBox: box, Attributes: attrs}, nil
 }

 func cloneRequest(r *http.Request, authHeader *AuthHeader) *http.Request {
@ -359,7 +349,7 @@ func (c *Center) checkSign(authHeader *AuthHeader, box *accessbox.Box, request *
 	return nil
 }

-func SignStr(secret, service, region string, t time.Time, strToSign string) string {
+func signStr(secret, service, region string, t time.Time, strToSign string) string {
 	creds := deriveKey(secret, service, region, t)
 	signature := hmacSHA256(creds, []byte(strToSign))
 	return hex.EncodeToString(signature)
--- a/api/auth/center_test.go
+++ b/api/auth/center_test.go
@ -115,7 +115,7 @@ func TestSignature(t *testing.T) {
 		panic(err)
 	}

-	signature := SignStr(secret, "s3", "us-east-1", signTime, strToSign)
+	signature := signStr(secret, "s3", "us-east-1", signTime, strToSign)
 	require.Equal(t, "dfbe886241d9e369cf4b329ca0f15eb27306c97aa1022cc0bb5a914c4ef87634", signature)
 }

@ -434,7 +434,7 @@ func TestAuthenticate(t *testing.T) {

 func TestHTTPPostAuthenticate(t *testing.T) {
 	const (
-		policyBase64     = "eyJleHBpcmF0aW9uIjogIjIwMjUtMTItMDFUMTI6MDA6MDAuMDAwWiIsImNvbmRpdGlvbnMiOiBbCiBbInN0YXJ0cy13aXRoIiwgIiR4LWFtei1jcmVkZW50aWFsIiwgIiJdLAogWyJzdGFydHMtd2l0aCIsICIkeC1hbXotZGF0ZSIsICIiXQpdfQ=="
+		policyBase64     = "eyAiZXhwaXJhdGlvbiI6ICIyMDA3LTEyLTAxVDEyOjAwOjAwLjAwMFoiLAogICJjb25kaXRpb25zIjogWwogICAgeyJhY2wiOiAicHVibGljLXJlYWQiIH0sCiAgICB7ImJ1Y2tldCI6ICJqb2huc21pdGgiIH0sCiAgICBbInN0YXJ0cy13aXRoIiwgIiRrZXkiLCAidXNlci9lcmljLyJdLAogIF0KfQ=="
 		invalidValue     = "invalid-value"
 		defaultFieldName = "file"
 		service          = "s3"
@ -492,7 +492,7 @@ func TestHTTPPostAuthenticate(t *testing.T) {
 			name: "HTTP POST valid",
 			request: func() *http.Request {
 				creds := getCredsStr(accessKeyID, timeToSignStr, region, service)
-				sign := SignStr(secret.SecretKey, service, region, timeToSign, policyBase64)
+				sign := signStr(secret.SecretKey, service, region, timeToSign, policyBase64)

 				return getRequestWithMultipartForm(t, policyBase64, creds, timeToSignStr, sign, defaultFieldName)
 			}(),
@ -501,7 +501,7 @@ func TestHTTPPostAuthenticate(t *testing.T) {
 			name: "HTTP POST valid with custom field name",
 			request: func() *http.Request {
 				creds := getCredsStr(accessKeyID, timeToSignStr, region, service)
-				sign := SignStr(secret.SecretKey, service, region, timeToSign, policyBase64)
+				sign := signStr(secret.SecretKey, service, region, timeToSign, policyBase64)

 				return getRequestWithMultipartForm(t, policyBase64, creds, timeToSignStr, sign, "files")
 			}(),
@ -510,7 +510,7 @@ func TestHTTPPostAuthenticate(t *testing.T) {
 			name: "HTTP POST valid with field name with a capital letter",
 			request: func() *http.Request {
 				creds := getCredsStr(accessKeyID, timeToSignStr, region, service)
-				sign := SignStr(secret.SecretKey, service, region, timeToSign, policyBase64)
+				sign := signStr(secret.SecretKey, service, region, timeToSign, policyBase64)

 				return getRequestWithMultipartForm(t, policyBase64, creds, timeToSignStr, sign, "File")
 			}(),
@ -530,7 +530,7 @@ func TestHTTPPostAuthenticate(t *testing.T) {
 			name: "HTTP POST invalid signature date time",
 			request: func() *http.Request {
 				creds := getCredsStr(accessKeyID, timeToSignStr, region, service)
-				sign := SignStr(secret.SecretKey, service, region, timeToSign, policyBase64)
+				sign := signStr(secret.SecretKey, service, region, timeToSign, policyBase64)

 				return getRequestWithMultipartForm(t, policyBase64, creds, invalidValue, sign, defaultFieldName)
 			}(),
@ -539,7 +539,7 @@ func TestHTTPPostAuthenticate(t *testing.T) {
 		{
 			name: "HTTP POST invalid creds",
 			request: func() *http.Request {
-				sign := SignStr(secret.SecretKey, service, region, timeToSign, policyBase64)
+				sign := signStr(secret.SecretKey, service, region, timeToSign, policyBase64)

 				return getRequestWithMultipartForm(t, policyBase64, invalidValue, timeToSignStr, sign, defaultFieldName)
 			}(),
@ -550,7 +550,7 @@ func TestHTTPPostAuthenticate(t *testing.T) {
 			name: "HTTP POST missing policy",
 			request: func() *http.Request {
 				creds := getCredsStr(accessKeyID, timeToSignStr, region, service)
-				sign := SignStr(secret.SecretKey, service, region, timeToSign, policyBase64)
+				sign := signStr(secret.SecretKey, service, region, timeToSign, policyBase64)

 				return getRequestWithMultipartForm(t, "", creds, timeToSignStr, sign, defaultFieldName)
 			}(),
@ -560,7 +560,7 @@ func TestHTTPPostAuthenticate(t *testing.T) {
 			name: "HTTP POST invalid accessKeyId",
 			request: func() *http.Request {
 				creds := getCredsStr(invalidValue, timeToSignStr, region, service)
-				sign := SignStr(secret.SecretKey, service, region, timeToSign, policyBase64)
+				sign := signStr(secret.SecretKey, service, region, timeToSign, policyBase64)

 				return getRequestWithMultipartForm(t, policyBase64, creds, timeToSignStr, sign, defaultFieldName)
 			}(),
@ -570,7 +570,7 @@ func TestHTTPPostAuthenticate(t *testing.T) {
 			name: "HTTP POST invalid accessKeyId - a non-existent box",
 			request: func() *http.Request {
 				creds := getCredsStr(invalidAccessKeyID, timeToSignStr, region, service)
-				sign := SignStr(secret.SecretKey, service, region, timeToSign, policyBase64)
+				sign := signStr(secret.SecretKey, service, region, timeToSign, policyBase64)

 				return getRequestWithMultipartForm(t, policyBase64, creds, timeToSignStr, sign, defaultFieldName)
 			}(),
@ -580,7 +580,7 @@ func TestHTTPPostAuthenticate(t *testing.T) {
 			name: "HTTP POST invalid signature",
 			request: func() *http.Request {
 				creds := getCredsStr(accessKeyID, timeToSignStr, region, service)
-				sign := SignStr(secret.SecretKey, service, region, timeToSign, invalidValue)
+				sign := signStr(secret.SecretKey, service, region, timeToSign, invalidValue)

 				return getRequestWithMultipartForm(t, policyBase64, creds, timeToSignStr, sign, defaultFieldName)
 			}(),
@ -602,7 +602,6 @@ func TestHTTPPostAuthenticate(t *testing.T) {
 			} else {
 				require.NoError(t, err)
 				require.Equal(t, secret.SecretKey, box.AccessBox.Gate.SecretKey)
-				require.Equal(t, accessKeyID, box.AuthHeaders.AccessKeyID)
 			}
 		})
 	}
@ -617,7 +616,7 @@ func getRequestWithMultipartForm(t *testing.T, policy, creds, date, sign, fieldN
 	writer := multipart.NewWriter(body)
 	defer writer.Close()

-	err := writer.WriteField("policy", policy)
+	err := writer.WriteField("Policy", policy)
 	require.NoError(t, err)
 	err = writer.WriteField(AmzCredential, creds)
 	require.NoError(t, err)
--- a/api/data/info.go
+++ b/api/data/info.go
@ -87,9 +87,7 @@ type (
 func (b *BucketInfo) SettingsObjectName() string { return bktSettingsObject }

 // CORSObjectName returns a system name for a bucket CORS configuration file.
-func (b *BucketInfo) CORSObjectName() string {
-	return b.CID.EncodeToString() + bktCORSConfigurationObject
-}
+func (b *BucketInfo) CORSObjectName() string { return bktCORSConfigurationObject }

 // VersionID returns object version from ObjectInfo.
 func (o *ObjectInfo) VersionID() string { return o.ID.EncodeToString() }
--- a/api/handler/api.go
+++ b/api/handler/api.go
@ -41,7 +41,6 @@ type (
 		RetryMaxAttempts() int
 		RetryMaxBackoff() time.Duration
 		RetryStrategy() RetryStrategy
-		Domains() []string
 	}

 	FrostFSID interface {
--- a/api/handler/delete.go
+++ b/api/handler/delete.go
@ -237,18 +237,9 @@ func (h *handler) DeleteBucketHandler(w http.ResponseWriter, r *http.Request) {
 		sessionToken = boxData.Gate.SessionTokenForDelete()
 	}

-	skipObjCheck := false
-	if value, ok := r.Header[api.AmzForceBucketDelete]; ok {
-		s := value[0]
-		if s == "true" {
-			skipObjCheck = true
-		}
-	}
-
 	if err = h.obj.DeleteBucket(r.Context(), &layer.DeleteBucketParams{
 		BktInfo:      bktInfo,
 		SessionToken: sessionToken,
-		SkipCheck:    skipObjCheck,
 	}); err != nil {
 		h.logAndSendError(w, "couldn't delete bucket", reqInfo, err)
 		return
--- a/api/handler/delete_test.go
+++ b/api/handler/delete_test.go
@ -85,24 +85,6 @@ func TestDeleteBucketOnNotFoundError(t *testing.T) {
 	deleteBucket(t, hc, bktName, http.StatusNoContent)
 }

-func TestForceDeleteBucket(t *testing.T) {
-	hc := prepareHandlerContext(t)
-
-	bktName, objName := "bucket-for-removal", "object-to-delete"
-	bktInfo := createTestBucket(hc, bktName)
-
-	putObject(hc, bktName, objName)
-
-	nodeVersion, err := hc.tree.GetUnversioned(hc.context, bktInfo, objName)
-	require.NoError(t, err)
-	var addr oid.Address
-	addr.SetContainer(bktInfo.CID)
-	addr.SetObject(nodeVersion.OID)
-
-	deleteBucketForce(t, hc, bktName, http.StatusConflict, "false")
-	deleteBucketForce(t, hc, bktName, http.StatusNoContent, "true")
-}
-
 func TestDeleteMultipleObjectCheckUniqueness(t *testing.T) {
 	hc := prepareHandlerContext(t)

@ -535,13 +517,6 @@ func deleteObjectsBase(hc *handlerContext, bktName string, objVersions [][2]stri
 	return w
 }

-func deleteBucketForce(t *testing.T, tc *handlerContext, bktName string, code int, value string) {
-	w, r := prepareTestRequest(tc, bktName, "", nil)
-	r.Header.Set(api.AmzForceBucketDelete, value)
-	tc.Handler().DeleteBucketHandler(w, r)
-	assertStatus(t, w, code)
-}
-
 func deleteBucket(t *testing.T, tc *handlerContext, bktName string, code int) {
 	w, r := prepareTestRequest(tc, bktName, "", nil)
 	tc.Handler().DeleteBucketHandler(w, r)
--- a/api/handler/encryption_test.go
+++ b/api/handler/encryption_test.go
@ -37,7 +37,7 @@ func TestSimpleGetEncrypted(t *testing.T) {

 	objInfo, err := tc.Layer().GetObjectInfo(tc.Context(), &layer.HeadObjectParams{BktInfo: bktInfo, Object: objName})
 	require.NoError(t, err)
-	obj, err := tc.MockedPool().GetObject(tc.Context(), layer.PrmObjectGet{Container: bktInfo.CID, Object: objInfo.ID})
+	obj, err := tc.MockedPool().ReadObject(tc.Context(), layer.PrmObjectRead{Container: bktInfo.CID, Object: objInfo.ID})
 	require.NoError(t, err)
 	encryptedContent, err := io.ReadAll(obj.Payload)
 	require.NoError(t, err)
--- a/api/handler/handlers_test.go
+++ b/api/handler/handlers_test.go
@ -72,7 +72,6 @@ type configMock struct {
 	defaultCopiesNumbers          []uint32
 	bypassContentEncodingInChunks bool
 	md5Enabled                    bool
-	domains                       []string
 }

 func (c *configMock) DefaultPlacementPolicy(_ string) netmap.PlacementPolicy {
@ -136,10 +135,6 @@ func (c *configMock) RetryStrategy() RetryStrategy {
 	return RetryStrategyConstant
 }

-func (c *configMock) Domains() []string {
-	return c.domains
-}
-
 func prepareHandlerContext(t *testing.T) *handlerContext {
 	return prepareHandlerContextBase(t, layer.DefaultCachesConfigs(zap.NewExample()))
 }
--- a/api/handler/multipart_upload.go
+++ b/api/handler/multipart_upload.go
@ -5,9 +5,7 @@ import (
 	"fmt"
 	"net/http"
 	"net/url"
-	"path"
 	"strconv"
-	"strings"
 	"time"

 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
@ -32,7 +30,6 @@ type (
 		Bucket  string   `xml:"Bucket"`
 		Key     string   `xml:"Key"`
 		ETag    string   `xml:"ETag"`
-		Location string   `xml:"Location"`
 	}

 	ListMultipartUploadsResponse struct {
@ -57,11 +54,11 @@ type (
 		Initiator            Initiator     `xml:"Initiator"`
 		IsTruncated          bool          `xml:"IsTruncated"`
 		Key                  string        `xml:"Key"`
-		MaxParts             int           `xml:"MaxParts"`
-		NextPartNumberMarker int           `xml:"NextPartNumberMarker"`
+		MaxParts             int           `xml:"MaxParts,omitempty"`
+		NextPartNumberMarker int           `xml:"NextPartNumberMarker,omitempty"`
 		Owner                Owner         `xml:"Owner"`
 		Parts                []*layer.Part `xml:"Part"`
-		PartNumberMarker     int           `xml:"PartNumberMarker"`
+		PartNumberMarker     int           `xml:"PartNumberMarker,omitempty"`
 		StorageClass         string        `xml:"StorageClass"`
 		UploadID             string        `xml:"UploadId"`
 	}
@ -429,7 +426,6 @@ func (h *handler) CompleteMultipartUploadHandler(w http.ResponseWriter, r *http.
 		Bucket: objInfo.Bucket,
 		Key:    objInfo.Name,
 		ETag:   data.Quote(objInfo.ETag(h.cfg.MD5Enabled())),
-		Location: getObjectLocation(r, h.cfg.Domains(), reqInfo.BucketName, reqInfo.ObjectName),
 	}

 	if settings.VersioningEnabled() {
@ -441,35 +437,6 @@ func (h *handler) CompleteMultipartUploadHandler(w http.ResponseWriter, r *http.
 	}
 }

-// returns "https" if the tls boolean is true, "http" otherwise.
-func getURLScheme(r *http.Request) string {
-	if r.TLS != nil {
-		return "https"
-	}
-	return "http"
-}
-
-// getObjectLocation gets the fully qualified URL of an object.
-func getObjectLocation(r *http.Request, domains []string, bucket, object string) string {
-	proto := middleware.GetSourceScheme(r)
-	if proto == "" {
-		proto = getURLScheme(r)
-	}
-	u := &url.URL{
-		Host:   r.Host,
-		Path:   path.Join("/", bucket, object),
-		Scheme: proto,
-	}
-	// If domain is set then we need to use bucket DNS style.
-	for _, domain := range domains {
-		if strings.HasPrefix(r.Host, bucket+"."+domain) {
-			u.Path = path.Join("/", object)
-			break
-		}
-	}
-	return u.String()
-}
-
 func (h *handler) completeMultipartUpload(r *http.Request, c *layer.CompleteMultipartParams, bktInfo *data.BucketInfo) (*data.ObjectInfo, error) {
 	ctx := r.Context()
 	uploadData, extendedObjInfo, err := h.obj.CompleteMultipartUpload(ctx, c)
--- a/api/handler/multipart_upload_test.go
+++ b/api/handler/multipart_upload_test.go
@ -292,19 +292,13 @@ func TestListParts(t *testing.T) {
 	require.Len(t, list.Parts, 2)
 	require.Equal(t, etag1, list.Parts[0].ETag)
 	require.Equal(t, etag2, list.Parts[1].ETag)
-	require.Zero(t, list.PartNumberMarker)
-	require.Equal(t, 2, list.NextPartNumberMarker)

 	list = listParts(hc, bktName, objName, uploadInfo.UploadID, "1", http.StatusOK)
 	require.Len(t, list.Parts, 1)
 	require.Equal(t, etag2, list.Parts[0].ETag)
-	require.Equal(t, 1, list.PartNumberMarker)
-	require.Equal(t, 2, list.NextPartNumberMarker)

 	list = listParts(hc, bktName, objName, uploadInfo.UploadID, "2", http.StatusOK)
 	require.Len(t, list.Parts, 0)
-	require.Equal(t, 2, list.PartNumberMarker)
-	require.Equal(t, 0, list.NextPartNumberMarker)

 	list = listParts(hc, bktName, objName, uploadInfo.UploadID, "7", http.StatusOK)
 	require.Len(t, list.Parts, 0)
@ -441,80 +435,6 @@ func TestUploadPartCheckContentSHA256(t *testing.T) {
 	}
 }

-func TestMultipartObjectLocation(t *testing.T) {
-	for _, tc := range []struct {
-		req      *http.Request
-		bucket   string
-		object   string
-		domains  []string
-		expected string
-	}{
-		{
-			req: &http.Request{
-				Host:   "127.0.0.1:8084",
-				Header: map[string][]string{"X-Forwarded-Scheme": {"http"}},
-			},
-			bucket:   "testbucket1",
-			object:   "test/1.txt",
-			expected: "http://127.0.0.1:8084/testbucket1/test/1.txt",
-		},
-		{
-			req: &http.Request{
-				Host:   "localhost:8084",
-				Header: map[string][]string{"X-Forwarded-Scheme": {"https"}},
-			},
-			bucket:   "testbucket1",
-			object:   "test/1.txt",
-			expected: "https://localhost:8084/testbucket1/test/1.txt",
-		},
-		{
-			req: &http.Request{
-				Host:   "s3.mybucket.org",
-				Header: map[string][]string{"X-Forwarded-Scheme": {"http"}},
-			},
-			bucket:   "mybucket",
-			object:   "test/1.txt",
-			expected: "http://s3.mybucket.org/mybucket/test/1.txt",
-		},
-		{
-			req:      &http.Request{Host: "mys3.mybucket.org"},
-			bucket:   "mybucket",
-			object:   "test/1.txt",
-			expected: "http://mys3.mybucket.org/mybucket/test/1.txt",
-		},
-		{
-			req:      &http.Request{Host: "s3.bucket.org", TLS: &tls.ConnectionState{}},
-			bucket:   "bucket",
-			object:   "obj",
-			expected: "https://s3.bucket.org/bucket/obj",
-		},
-		{
-			req: &http.Request{
-				Host: "mybucket.s3dev.frostfs.devenv",
-			},
-			domains:  []string{"s3dev.frostfs.devenv"},
-			bucket:   "mybucket",
-			object:   "test/1.txt",
-			expected: "http://mybucket.s3dev.frostfs.devenv/test/1.txt",
-		},
-		{
-			req: &http.Request{
-				Host:   "mybucket.s3dev.frostfs.devenv",
-				Header: map[string][]string{"X-Forwarded-Scheme": {"https"}},
-			},
-			domains:  []string{"s3dev.frostfs.devenv"},
-			bucket:   "mybucket",
-			object:   "test/1.txt",
-			expected: "https://mybucket.s3dev.frostfs.devenv/test/1.txt",
-		},
-	} {
-		t.Run("", func(t *testing.T) {
-			location := getObjectLocation(tc.req, tc.domains, tc.bucket, tc.object)
-			require.Equal(t, tc.expected, location)
-		})
-	}
-}
-
 func uploadPartCopy(hc *handlerContext, bktName, objName, uploadID string, num int, srcObj string, start, end int) *UploadPartCopyResponse {
 	return uploadPartCopyBase(hc, bktName, objName, false, uploadID, num, srcObj, start, end)
 }
--- a/api/handler/object_list.go
+++ b/api/handler/object_list.go
@ -232,7 +232,7 @@ func (h *handler) ListBucketObjectVersionsHandler(w http.ResponseWriter, r *http
 		return
 	}

-	response := encodeListObjectVersionsToResponse(p, info, p.BktInfo.Name, h.cfg.MD5Enabled())
+	response := encodeListObjectVersionsToResponse(info, p.BktInfo.Name, h.cfg.MD5Enabled())
 	if err = middleware.EncodeToResponse(w, response); err != nil {
 		h.logAndSendError(w, "something went wrong", reqInfo, err)
 	}
@ -264,28 +264,24 @@ func parseListObjectVersionsRequest(reqInfo *middleware.ReqInfo) (*layer.ListObj
 	return &res, nil
 }

-func encodeListObjectVersionsToResponse(p *layer.ListObjectVersionsParams, info *layer.ListObjectVersionsInfo, bucketName string, md5Enabled bool) *ListObjectsVersionsResponse {
+func encodeListObjectVersionsToResponse(info *layer.ListObjectVersionsInfo, bucketName string, md5Enabled bool) *ListObjectsVersionsResponse {
 	res := ListObjectsVersionsResponse{
 		Name:                bucketName,
 		IsTruncated:         info.IsTruncated,
-		KeyMarker:           s3PathEncode(info.KeyMarker, p.Encode),
-		NextKeyMarker:       s3PathEncode(info.NextKeyMarker, p.Encode),
+		KeyMarker:           info.KeyMarker,
+		NextKeyMarker:       info.NextKeyMarker,
 		NextVersionIDMarker: info.NextVersionIDMarker,
 		VersionIDMarker:     info.VersionIDMarker,
-		Prefix:              s3PathEncode(p.Prefix, p.Encode),
-		Delimiter:           s3PathEncode(p.Delimiter, p.Encode),
-		EncodingType:        p.Encode,
-		MaxKeys:             p.MaxKeys,
 	}

 	for _, prefix := range info.CommonPrefixes {
-		res.CommonPrefixes = append(res.CommonPrefixes, CommonPrefix{Prefix: s3PathEncode(prefix, p.Encode)})
+		res.CommonPrefixes = append(res.CommonPrefixes, CommonPrefix{Prefix: prefix})
 	}

 	for _, ver := range info.Version {
 		res.Version = append(res.Version, ObjectVersionResponse{
 			IsLatest:     ver.IsLatest,
-			Key:          s3PathEncode(ver.NodeVersion.FilePath, p.Encode),
+			Key:          ver.NodeVersion.FilePath,
 			LastModified: ver.NodeVersion.Created.UTC().Format(time.RFC3339),
 			Owner: Owner{
 				ID:          ver.NodeVersion.Owner.String(),
@ -301,7 +297,7 @@ func encodeListObjectVersionsToResponse(p *layer.ListObjectVersionsParams, info
 	for _, del := range info.DeleteMarker {
 		res.DeleteMarker = append(res.DeleteMarker, DeleteMarkerEntry{
 			IsLatest:     del.IsLatest,
-			Key:          s3PathEncode(del.NodeVersion.FilePath, p.Encode),
+			Key:          del.NodeVersion.FilePath,
 			LastModified: del.NodeVersion.Created.UTC().Format(time.RFC3339),
 			Owner: Owner{
 				ID:          del.NodeVersion.Owner.String(),
--- a/api/handler/object_list_test.go
+++ b/api/handler/object_list_test.go
@ -675,49 +675,6 @@ func TestMintVersioningListObjectVersionsVersionIDContinuation(t *testing.T) {
 	require.Equal(t, page1.NextVersionIDMarker, page2.VersionIDMarker)
 }

-func TestListObjectVersionsEncoding(t *testing.T) {
-	hc := prepareHandlerContext(t)
-
-	bktName := "bucket-for-listing-versions-encoding"
-	bktInfo := createTestBucket(hc, bktName)
-	putBucketVersioning(t, hc, bktName, true)
-
-	objects := []string{"foo()/bar", "foo()/bar/xyzzy", "auux ab/thud", "asdf+b"}
-	for _, objName := range objects {
-		createTestObject(hc, bktInfo, objName, encryption.Params{})
-	}
-	deleteObject(t, hc, bktName, "auux ab/thud", "")
-
-	listResponse := listObjectsVersionsURL(hc, bktName, "foo(", ")", "", "", -1)
-
-	require.Len(t, listResponse.CommonPrefixes, 1)
-	require.Equal(t, "foo%28%29", listResponse.CommonPrefixes[0].Prefix)
-	require.Len(t, listResponse.Version, 0)
-	require.Len(t, listResponse.DeleteMarker, 0)
-	require.Equal(t, "foo%28", listResponse.Prefix)
-	require.Equal(t, "%29", listResponse.Delimiter)
-	require.Equal(t, "url", listResponse.EncodingType)
-	require.Equal(t, maxObjectList, listResponse.MaxKeys)
-
-	listResponse = listObjectsVersions(hc, bktName, "", "", "", "", 1)
-	require.Empty(t, listResponse.EncodingType)
-
-	listResponse = listObjectsVersionsURL(hc, bktName, "", "", listResponse.NextKeyMarker, listResponse.NextVersionIDMarker, 3)
-
-	require.Len(t, listResponse.CommonPrefixes, 0)
-	require.Len(t, listResponse.Version, 2)
-	require.Equal(t, "auux%20ab/thud", listResponse.Version[0].Key)
-	require.False(t, listResponse.Version[0].IsLatest)
-	require.Equal(t, "foo%28%29/bar", listResponse.Version[1].Key)
-	require.Len(t, listResponse.DeleteMarker, 1)
-	require.Equal(t, "auux%20ab/thud", listResponse.DeleteMarker[0].Key)
-	require.True(t, listResponse.DeleteMarker[0].IsLatest)
-	require.Equal(t, "asdf%2Bb", listResponse.KeyMarker)
-	require.Equal(t, "foo%28%29/bar", listResponse.NextKeyMarker)
-	require.Equal(t, "url", listResponse.EncodingType)
-	require.Equal(t, 3, listResponse.MaxKeys)
-}
-
 func checkVersionsNames(t *testing.T, versions *ListObjectsVersionsResponse, names []string) {
 	for i, v := range versions.Version {
 		require.Equal(t, names[i], v.Key)
@ -820,14 +777,6 @@ func listObjectsV1(hc *handlerContext, bktName, prefix, delimiter, marker string
 }

 func listObjectsVersions(hc *handlerContext, bktName, prefix, delimiter, keyMarker, versionIDMarker string, maxKeys int) *ListObjectsVersionsResponse {
-	return listObjectsVersionsBase(hc, bktName, prefix, delimiter, keyMarker, versionIDMarker, maxKeys, false)
-}
-
-func listObjectsVersionsURL(hc *handlerContext, bktName, prefix, delimiter, keyMarker, versionIDMarker string, maxKeys int) *ListObjectsVersionsResponse {
-	return listObjectsVersionsBase(hc, bktName, prefix, delimiter, keyMarker, versionIDMarker, maxKeys, true)
-}
-
-func listObjectsVersionsBase(hc *handlerContext, bktName, prefix, delimiter, keyMarker, versionIDMarker string, maxKeys int, encode bool) *ListObjectsVersionsResponse {
 	query := prepareCommonListObjectsQuery(prefix, delimiter, maxKeys)
 	if len(keyMarker) != 0 {
 		query.Add("key-marker", keyMarker)
@ -835,9 +784,6 @@ func listObjectsVersionsBase(hc *handlerContext, bktName, prefix, delimiter, key
 	if len(versionIDMarker) != 0 {
 		query.Add("version-id-marker", versionIDMarker)
 	}
-	if encode {
-		query.Add("encoding-type", "url")
-	}

 	w, r := prepareTestFullRequest(hc, bktName, "", query, nil)
 	hc.Handler().ListBucketObjectVersionsHandler(w, r)
--- a/api/handler/put.go
+++ b/api/handler/put.go
@ -9,10 +9,10 @@ import (
 	stderrors "errors"
 	"fmt"
 	"io"
-	"mime/multipart"
 	"net"
 	"net/http"
 	"net/url"
+	"runtime/trace"
 	"strconv"
 	"strings"
 	"time"
@ -183,6 +183,12 @@ type createBucketParams struct {
 }

 func (h *handler) PutObjectHandler(w http.ResponseWriter, r *http.Request) {
+	if trace.IsEnabled() {
+		pctx, task := trace.NewTask(r.Context(), "PutObjectHandler")
+		defer task.End()
+		r = r.WithContext(pctx)
+	}
+
 	var (
 		err             error
 		cannedACLStatus = aclHeadersStatus(r)
@ -470,47 +476,21 @@ func (h *handler) PostObject(w http.ResponseWriter, r *http.Request) {
 		return
 	}

-	reqInfo.ObjectName = auth.MultipartFormValue(r, "key")
-
 	var contentReader io.Reader
 	var size uint64
-	var filename string
-
 	if content, ok := r.MultipartForm.Value["file"]; ok {
-		fullContent := strings.Join(content, "")
-		contentReader = bytes.NewBufferString(fullContent)
-		size = uint64(len(fullContent))
-
-		if reqInfo.ObjectName == "" || strings.Contains(reqInfo.ObjectName, "${filename}") {
-			_, head, err := r.FormFile("file")
-			if err != nil {
-				h.logAndSendError(w, "could not parse file field", reqInfo, err)
-				return
-			}
-			filename = head.Filename
-		}
+		contentReader = bytes.NewBufferString(content[0])
+		size = uint64(len(content[0]))
 	} else {
-		var head *multipart.FileHeader
-		contentReader, head, err = r.FormFile("file")
+		file, head, err := r.FormFile("file")
 		if err != nil {
-			h.logAndSendError(w, "could not parse file field", reqInfo, err)
+			h.logAndSendError(w, "could get uploading file", reqInfo, err)
 			return
 		}
+		contentReader = file
 		size = uint64(head.Size)
-		filename = head.Filename
+		reqInfo.ObjectName = strings.ReplaceAll(reqInfo.ObjectName, "${filename}", head.Filename)
 	}
-
-	if reqInfo.ObjectName == "" {
-		reqInfo.ObjectName = filename
-	} else {
-		reqInfo.ObjectName = strings.ReplaceAll(reqInfo.ObjectName, "${filename}", filename)
-	}
-
-	if reqInfo.ObjectName == "" {
-		h.logAndSendError(w, "missing object name", reqInfo, errors.GetAPIError(errors.ErrInvalidArgument))
-		return
-	}
-
 	if !policy.CheckContentLength(size) {
 		h.logAndSendError(w, "invalid content-length", reqInfo, errors.GetAPIError(errors.ErrInvalidArgument))
 		return
@ -626,6 +606,10 @@ func checkPostPolicy(r *http.Request, reqInfo *middleware.ReqInfo, metadata map[
 		if key == "content-type" {
 			metadata[api.ContentType] = value
 		}
+
+		if key == "key" {
+			reqInfo.ObjectName = value
+		}
 	}

 	for _, cond := range policy.Conditions {
--- a/api/handler/put_test.go
+++ b/api/handler/put_test.go
@ -17,7 +17,6 @@ import (
 	"time"

 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/auth"
 	v4 "git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/auth/signer/v4"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
 	s3errors "git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
@ -123,92 +122,6 @@ func TestEmptyPostPolicy(t *testing.T) {
 	require.NoError(t, err)
 }

-// if content length is greater than this value
-// data will be writen to file location.
-const maxContentSizeForFormData = 10
-
-func TestPostObject(t *testing.T) {
-	hc := prepareHandlerContext(t)
-
-	ns, bktName := "", "bucket"
-	createTestBucket(hc, bktName)
-
-	for _, tc := range []struct {
-		key      string
-		filename string
-		content  string
-		objName  string
-		err      bool
-	}{
-		{
-			key:      "user/user1/${filename}",
-			filename: "object",
-			content:  "content",
-			objName:  "user/user1/object",
-		},
-		{
-			key:      "user/user1/${filename}",
-			filename: "object",
-			content:  "maxContentSizeForFormData",
-			objName:  "user/user1/object",
-		},
-		{
-			key:      "user/user1/key-object",
-			filename: "object",
-			content:  "",
-			objName:  "user/user1/key-object",
-		},
-		{
-			key:      "user/user1/key-object",
-			filename: "object",
-			content:  "maxContentSizeForFormData",
-			objName:  "user/user1/key-object",
-		},
-		{
-			key:      "",
-			filename: "object",
-			content:  "",
-			objName:  "object",
-		},
-		{
-			key:      "",
-			filename: "object",
-			content:  "maxContentSizeForFormData",
-			objName:  "object",
-		},
-		{
-			// RFC 7578, Section 4.2 requires that if a filename is provided, the
-			// directory path information must not be used.
-			key:      "",
-			filename: "dir/object",
-			content:  "content",
-			objName:  "object",
-		},
-		{
-			key:      "object",
-			filename: "",
-			content:  "content",
-			objName:  "object",
-		},
-		{
-			key:      "",
-			filename: "",
-			err:      true,
-		},
-	} {
-		t.Run(tc.key+";"+tc.filename, func(t *testing.T) {
-			w := postObjectBase(hc, ns, bktName, tc.key, tc.filename, tc.content)
-			if tc.err {
-				assertS3Error(hc.t, w, s3errors.GetAPIError(s3errors.ErrInternalError))
-				return
-			}
-			assertStatus(hc.t, w, http.StatusNoContent)
-			content, _ := getObject(hc, bktName, tc.objName)
-			require.Equal(t, tc.content, string(content))
-		})
-	}
-}
-
 func TestPutObjectOverrideCopiesNumber(t *testing.T) {
 	tc := prepareHandlerContext(t)

@ -536,85 +449,3 @@ func TestPutObjectWithContentLanguage(t *testing.T) {
 	tc.Handler().HeadObjectHandler(w, r)
 	require.Equal(t, expectedContentLanguage, w.Header().Get(api.ContentLanguage))
 }
-
-func postObjectBase(hc *handlerContext, ns, bktName, key, filename, content string) *httptest.ResponseRecorder {
-	policy := "eyJleHBpcmF0aW9uIjogIjIwMjUtMTItMDFUMTI6MDA6MDAuMDAwWiIsImNvbmRpdGlvbnMiOiBbCiBbInN0YXJ0cy13aXRoIiwgIiR4LWFtei1jcmVkZW50aWFsIiwgIiJdLAogWyJzdGFydHMtd2l0aCIsICIkeC1hbXotZGF0ZSIsICIiXSwKIFsic3RhcnRzLXdpdGgiLCAiJGtleSIsICIiXQpdfQ=="
-
-	timeToSign := time.Now()
-	timeToSignStr := timeToSign.Format("20060102T150405Z")
-	region := "default"
-	service := "s3"
-
-	accessKeyID := "5jizSbYu8hX345aqCKDgRWKCJYHxnzxRS8e6SUYHZ8Fw0HiRkf3KbJAWBn5mRzmiyHQ3UHADGyzVXLusn1BrmAfLn"
-	secretKey := "abf066d77c6744cd956a123a0b9612df587f5c14d3350ecb01b363f182dd7279"
-
-	creds := getCredsStr(accessKeyID, timeToSignStr, region, service)
-	sign := auth.SignStr(secretKey, service, region, timeToSign, policy)
-
-	body, contentType, err := getMultipartFormBody(policy, creds, timeToSignStr, sign, key, filename, content)
-	require.NoError(hc.t, err)
-
-	w, r := prepareTestPostRequest(hc, bktName, body)
-	r.Header.Set(auth.ContentTypeHdr, contentType)
-	r.Header.Set("X-Frostfs-Namespace", ns)
-
-	err = r.ParseMultipartForm(50 * 1024 * 1024)
-	require.NoError(hc.t, err)
-
-	hc.Handler().PostObject(w, r)
-	return w
-}
-
-func getCredsStr(accessKeyID, timeToSign, region, service string) string {
-	return accessKeyID + "/" + timeToSign + "/" + region + "/" + service + "/aws4_request"
-}
-
-func getMultipartFormBody(policy, creds, date, sign, key, filename, content string) (io.Reader, string, error) {
-	body := &bytes.Buffer{}
-	writer := multipart.NewWriter(body)
-	defer writer.Close()
-
-	if err := writer.WriteField("policy", policy); err != nil {
-		return nil, "", err
-	}
-
-	if err := writer.WriteField("key", key); err != nil {
-		return nil, "", err
-	}
-	if err := writer.WriteField(strings.ToLower(auth.AmzCredential), creds); err != nil {
-		return nil, "", err
-	}
-	if err := writer.WriteField(strings.ToLower(auth.AmzDate), date); err != nil {
-		return nil, "", err
-	}
-	if err := writer.WriteField(strings.ToLower(auth.AmzSignature), sign); err != nil {
-		return nil, "", err
-	}
-
-	file, err := writer.CreateFormFile("file", filename)
-	if err != nil {
-		return nil, "", err
-	}
-
-	if len(content) < maxContentSizeForFormData {
-		if err = writer.WriteField("file", content); err != nil {
-			return nil, "", err
-		}
-	} else {
-		if _, err = file.Write([]byte(content)); err != nil {
-			return nil, "", err
-		}
-	}
-
-	return body, writer.FormDataContentType(), nil
-}
-
-func prepareTestPostRequest(hc *handlerContext, bktName string, payload io.Reader) (*httptest.ResponseRecorder, *http.Request) {
-	w := httptest.NewRecorder()
-	r := httptest.NewRequest(http.MethodPost, defaultURL+bktName, payload)
-
-	reqInfo := middleware.NewReqInfo(w, r, middleware.ObjectRequest{Bucket: bktName}, "")
-	r = r.WithContext(middleware.SetReqInfo(hc.Context(), reqInfo))
-
-	return w, r
-}
--- a/api/handler/response.go
+++ b/api/handler/response.go
@ -176,9 +176,6 @@ type ListObjectsVersionsResponse struct {
 	DeleteMarker        []DeleteMarkerEntry     `xml:"DeleteMarker"`
 	Version             []ObjectVersionResponse `xml:"Version"`
 	CommonPrefixes      []CommonPrefix          `xml:"CommonPrefixes"`
-	Prefix              string                  `xml:"Prefix"`
-	Delimiter           string                  `xml:"Delimiter,omitempty"`
-	MaxKeys             int                     `xml:"MaxKeys"`
 }

 // VersioningConfiguration contains VersioningConfiguration XML representation.
--- a/api/headers.go
+++ b/api/headers.go
@ -62,7 +62,6 @@ const (
 	AmzMaxParts                  = "X-Amz-Max-Parts"
 	AmzPartNumberMarker          = "X-Amz-Part-Number-Marker"
 	AmzStorageClass              = "X-Amz-Storage-Class"
-	AmzForceBucketDelete         = "X-Amz-Force-Delete-Bucket"

 	AmzServerSideEncryptionCustomerAlgorithm = "x-amz-server-side-encryption-customer-algorithm"
 	AmzServerSideEncryptionCustomerKey       = "x-amz-server-side-encryption-customer-key"
--- a/api/layer/cache.go
+++ b/api/layer/cache.go
@ -233,7 +233,7 @@ func (c *Cache) PutSettings(owner user.ID, bktInfo *data.BucketInfo, settings *d
 }

 func (c *Cache) GetCORS(owner user.ID, bkt *data.BucketInfo) *data.CORSConfiguration {
-	key := bkt.CORSObjectName()
+	key := bkt.Name + bkt.CORSObjectName()

 	if !c.accessCache.Get(owner, key) {
 		return nil
@ -243,7 +243,7 @@ func (c *Cache) GetCORS(owner user.ID, bkt *data.BucketInfo) *data.CORSConfigura
 }

 func (c *Cache) PutCORS(owner user.ID, bkt *data.BucketInfo, cors *data.CORSConfiguration) {
-	key := bkt.CORSObjectName()
+	key := bkt.Name + bkt.CORSObjectName()

 	if err := c.systemCache.PutCORS(key, cors); err != nil {
 		c.logger.Warn(logs.CouldntCacheCors, zap.String("bucket", bkt.Name), zap.Error(err))
@ -255,5 +255,5 @@ func (c *Cache) PutCORS(owner user.ID, bkt *data.BucketInfo, cors *data.CORSConf
 }

 func (c *Cache) DeleteCORS(bktInfo *data.BucketInfo) {
-	c.systemCache.Delete(bktInfo.CORSObjectName())
+	c.systemCache.Delete(bktInfo.Name + bktInfo.CORSObjectName())
 }
--- a/api/layer/cors.go
+++ b/api/layer/cors.go
@ -10,8 +10,6 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/internal/logs"
-	cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
-	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
 	"go.uber.org/zap"
 )

@ -39,36 +37,31 @@ func (n *Layer) PutBucketCORS(ctx context.Context, p *PutCORSParams) error {
 	}

 	prm := PrmObjectCreate{
+		Container:    p.BktInfo.CID,
 		Payload:      &buf,
 		Filepath:     p.BktInfo.CORSObjectName(),
 		CreationTime: TimeNow(ctx),
+		CopiesNumber: p.CopiesNumbers,
 	}

-	var corsBkt *data.BucketInfo
-	if n.corsCnrInfo == nil {
-		corsBkt = p.BktInfo
-		prm.CopiesNumber = p.CopiesNumbers
-	} else {
-		corsBkt = n.corsCnrInfo
-		prm.PrmAuth.PrivateKey = &n.gateKey.PrivateKey
-	}
-
-	prm.Container = corsBkt.CID
-
-	_, objID, _, _, err := n.objectPutAndHash(ctx, prm, corsBkt)
+	_, objID, _, _, err := n.objectPutAndHash(ctx, prm, p.BktInfo)
 	if err != nil {
-		return fmt.Errorf("put cors object: %w", err)
+		return fmt.Errorf("put system object: %w", err)
 	}

-	objsToDelete, err := n.treeService.PutBucketCORS(ctx, p.BktInfo, newAddress(corsBkt.CID, objID))
-	objToDeleteNotFound := errorsStd.Is(err, ErrNoNodeToRemove)
-	if err != nil && !objToDeleteNotFound {
+	objIDsToDelete, err := n.treeService.PutBucketCORS(ctx, p.BktInfo, objID)
+	objIDToDeleteNotFound := errorsStd.Is(err, ErrNoNodeToRemove)
+	if err != nil && !objIDToDeleteNotFound {
 		return err
 	}

-	if !objToDeleteNotFound {
-		for _, addr := range objsToDelete {
-			n.deleteCORSObject(ctx, p.BktInfo, addr)
+	if !objIDToDeleteNotFound {
+		for _, id := range objIDsToDelete {
+			if err = n.objectDelete(ctx, p.BktInfo, id); err != nil {
+				n.reqLogger(ctx).Error(logs.CouldntDeleteCorsObject, zap.Error(err),
+					zap.String("cnrID", p.BktInfo.CID.EncodeToString()),
+					zap.String("objID", id.EncodeToString()))
+			}
 		}
 	}

@ -77,25 +70,12 @@ func (n *Layer) PutBucketCORS(ctx context.Context, p *PutCORSParams) error {
 	return nil
 }

-// deleteCORSObject removes object and logs in case of error.
-func (n *Layer) deleteCORSObject(ctx context.Context, bktInfo *data.BucketInfo, addr oid.Address) {
-	var prmAuth PrmAuth
-	corsBkt := bktInfo
-	if !addr.Container().Equals(bktInfo.CID) && !addr.Container().Equals(cid.ID{}) {
-		corsBkt = &data.BucketInfo{CID: addr.Container()}
-		prmAuth.PrivateKey = &n.gateKey.PrivateKey
-	}
-
-	if err := n.objectDeleteWithAuth(ctx, corsBkt, addr.Object(), prmAuth); err != nil {
-		n.reqLogger(ctx).Error(logs.CouldntDeleteCorsObject, zap.Error(err),
-			zap.String("cnrID", corsBkt.CID.EncodeToString()),
-			zap.String("objID", addr.Object().EncodeToString()))
-	}
-}
-
 func (n *Layer) GetBucketCORS(ctx context.Context, bktInfo *data.BucketInfo) (*data.CORSConfiguration, error) {
 	cors, err := n.getCORS(ctx, bktInfo)
 	if err != nil {
+		if errorsStd.Is(err, ErrNodeNotFound) {
+			return nil, fmt.Errorf("%w: %s", errors.GetAPIError(errors.ErrNoSuchCORSConfiguration), err.Error())
+		}
 		return nil, err
 	}

@ -103,15 +83,16 @@ func (n *Layer) GetBucketCORS(ctx context.Context, bktInfo *data.BucketInfo) (*d
 }

 func (n *Layer) DeleteBucketCORS(ctx context.Context, bktInfo *data.BucketInfo) error {
-	objs, err := n.treeService.DeleteBucketCORS(ctx, bktInfo)
-	objNotFound := errorsStd.Is(err, ErrNoNodeToRemove)
-	if err != nil && !objNotFound {
+	objIDs, err := n.treeService.DeleteBucketCORS(ctx, bktInfo)
+	objIDNotFound := errorsStd.Is(err, ErrNoNodeToRemove)
+	if err != nil && !objIDNotFound {
+		return err
+	}
+	if !objIDNotFound {
+		for _, id := range objIDs {
+			if err = n.objectDelete(ctx, bktInfo, id); err != nil {
 				return err
 			}
-
-	if !objNotFound {
-		for _, addr := range objs {
-			n.deleteCORSObject(ctx, bktInfo, addr)
 		}
 	}

--- a/api/layer/frostfs.go
+++ b/api/layer/frostfs.go
@ -78,8 +78,8 @@ type PrmAuth struct {
 	PrivateKey *ecdsa.PrivateKey
 }

-// PrmObjectHead groups parameters of FrostFS.HeadObject operation.
-type PrmObjectHead struct {
+// PrmObjectRead groups parameters of FrostFS.ReadObject operation.
+type PrmObjectRead struct {
 	// Authentication parameters.
 	PrmAuth

@ -88,39 +88,21 @@ type PrmObjectHead struct {

 	// ID of the object for which to read the header.
 	Object oid.ID
-}

-// PrmObjectGet groups parameters of FrostFS.GetObject operation.
-type PrmObjectGet struct {
-	// Authentication parameters.
-	PrmAuth
+	// Flag to read object header.
+	WithHeader bool

-	// Container to read the object header from.
-	Container cid.ID
-
-	// ID of the object for which to read the header.
-	Object oid.ID
-}
-
-// PrmObjectRange groups parameters of FrostFS.RangeObject operation.
-type PrmObjectRange struct {
-	// Authentication parameters.
-	PrmAuth
-
-	// Container to read the object header from.
-	Container cid.ID
-
-	// ID of the object for which to read the header.
-	Object oid.ID
+	// Flag to read object payload. False overlaps payload range.
+	WithPayload bool

 	// Offset-length range of the object payload to be read.
 	PayloadRange [2]uint64
 }

-// Object represents full read FrostFS object.
-type Object struct {
-	// Object header (doesn't contain payload).
-	Header object.Object
+// ObjectPart represents partially read FrostFS object.
+type ObjectPart struct {
+	// Object header with optional in-memory payload part.
+	Head *object.Object

 	// Object payload part encapsulated in io.Reader primitive.
 	// Returns ErrAccessDenied on read access violation.
@ -231,15 +213,13 @@ type FrostFS interface {
 	// It returns any error encountered which prevented the removal request from being sent.
 	DeleteContainer(context.Context, cid.ID, *session.Container) error

-	// HeadObject reads an info of the object from the FrostFS container by identifier.
+	// ReadObject reads a part of the object from the FrostFS container by identifier.
+	// Exact part is returned according to the parameters:
+	//   * with header only: empty payload (both in-mem and reader parts are nil);
+	//   * with payload only: header is nil (zero range means full payload);
+	//   * with header and payload: full in-mem object, payload reader is nil.
 	//
-	// It returns ErrAccessDenied on read access violation.
-	//
-	// It returns exactly one non-nil value. It returns any error encountered which
-	// prevented the object header from being read.
-	HeadObject(ctx context.Context, prm PrmObjectHead) (*object.Object, error)
-
-	// GetObject reads an object from the FrostFS container by identifier.
+	// WithHeader or WithPayload is true. Range length is positive if offset is positive.
 	//
 	// Payload reader should be closed if it is no longer needed.
 	//
@ -247,17 +227,7 @@ type FrostFS interface {
 	//
 	// It returns exactly one non-nil value. It returns any error encountered which
 	// prevented the object header from being read.
-	GetObject(ctx context.Context, prm PrmObjectGet) (*Object, error)
-
-	// RangeObject reads a part of object from the FrostFS container by identifier.
-	//
-	// Payload reader should be closed if it is no longer needed.
-	//
-	// It returns ErrAccessDenied on read access violation.
-	//
-	// It returns exactly one non-nil value. It returns any error encountered which
-	// prevented the object header from being read.
-	RangeObject(ctx context.Context, prm PrmObjectRange) (io.ReadCloser, error)
+	ReadObject(context.Context, PrmObjectRead) (*ObjectPart, error)

 	// CreateObject creates and saves a parameterized object in the FrostFS container.
 	// It sets 'Timestamp' attribute to the current time.
--- a/api/layer/frostfs_mock.go
+++ b/api/layer/frostfs_mock.go
@ -204,10 +204,10 @@ func (t *TestFrostFS) UserContainers(context.Context, PrmUserContainers) ([]cid.
 	return res, nil
 }

-func (t *TestFrostFS) retrieveObject(ctx context.Context, cnrID cid.ID, objID oid.ID) (*object.Object, error) {
+func (t *TestFrostFS) ReadObject(ctx context.Context, prm PrmObjectRead) (*ObjectPart, error) {
 	var addr oid.Address
-	addr.SetContainer(cnrID)
-	addr.SetObject(objID)
+	addr.SetContainer(prm.Container)
+	addr.SetObject(prm.Object)

 	sAddr := addr.EncodeToString()

@ -217,44 +217,26 @@ func (t *TestFrostFS) retrieveObject(ctx context.Context, cnrID cid.ID, objID oi

 	if obj, ok := t.objects[sAddr]; ok {
 		owner := getBearerOwner(ctx)
-		if !t.checkAccess(cnrID, owner) {
+		if !t.checkAccess(prm.Container, owner) {
 			return nil, ErrAccessDenied
 		}

-		return obj, nil
+		payload := obj.Payload()
+
+		if prm.PayloadRange[0]+prm.PayloadRange[1] > 0 {
+			off := prm.PayloadRange[0]
+			payload = payload[off : off+prm.PayloadRange[1]]
+		}
+
+		return &ObjectPart{
+			Head:    obj,
+			Payload: io.NopCloser(bytes.NewReader(payload)),
+		}, nil
 	}

 	return nil, fmt.Errorf("%w: %s", &apistatus.ObjectNotFound{}, addr)
 }

-func (t *TestFrostFS) HeadObject(ctx context.Context, prm PrmObjectHead) (*object.Object, error) {
-	return t.retrieveObject(ctx, prm.Container, prm.Object)
-}
-
-func (t *TestFrostFS) GetObject(ctx context.Context, prm PrmObjectGet) (*Object, error) {
-	obj, err := t.retrieveObject(ctx, prm.Container, prm.Object)
-	if err != nil {
-		return nil, err
-	}
-
-	return &Object{
-		Header:  *obj,
-		Payload: io.NopCloser(bytes.NewReader(obj.Payload())),
-	}, nil
-}
-
-func (t *TestFrostFS) RangeObject(ctx context.Context, prm PrmObjectRange) (io.ReadCloser, error) {
-	obj, err := t.retrieveObject(ctx, prm.Container, prm.Object)
-	if err != nil {
-		return nil, err
-	}
-
-	off := prm.PayloadRange[0]
-	payload := obj.Payload()[off : off+prm.PayloadRange[1]]
-
-	return io.NopCloser(bytes.NewReader(payload)), nil
-}
-
 func (t *TestFrostFS) CreateObject(_ context.Context, prm PrmObjectCreate) (oid.ID, error) {
 	b := make([]byte, 32)
 	if _, err := io.ReadFull(rand.Reader, b); err != nil {
--- a/api/layer/layer.go
+++ b/api/layer/layer.go
@ -54,8 +54,6 @@ type (
 		cache       *Cache
 		treeService TreeService
 		features    FeatureSettings
-		gateKey     *keys.PrivateKey
-		corsCnrInfo *data.BucketInfo
 	}

 	Config struct {
@ -66,8 +64,6 @@ type (
 		Resolver     BucketResolver
 		TreeService  TreeService
 		Features     FeatureSettings
-		GateKey      *keys.PrivateKey
-		CORSCnrInfo  *data.BucketInfo
 	}

 	// AnonymousKey contains data for anonymous requests.
@ -170,7 +166,6 @@ type (
 	DeleteBucketParams struct {
 		BktInfo      *data.BucketInfo
 		SessionToken *session.Container
-		SkipCheck    bool
 	}

 	// ListObjectVersionsParams stores list objects versions parameters.
@ -241,8 +236,6 @@ func NewLayer(log *zap.Logger, frostFS FrostFS, config *Config) *Layer {
 		cache:       config.Cache,
 		treeService: config.TreeService,
 		features:    config.Features,
-		gateKey:     config.GateKey,
-		corsCnrInfo: config.CORSCnrInfo,
 	}
 }

@ -295,10 +288,6 @@ func (n *Layer) reqLogger(ctx context.Context) *zap.Logger {
 }

 func (n *Layer) prepareAuthParameters(ctx context.Context, prm *PrmAuth, bktOwner user.ID) {
-	if prm.BearerToken != nil || prm.PrivateKey != nil {
-		return
-	}
-
 	if bd, err := middleware.GetBoxData(ctx); err == nil && bd.Gate.BearerToken != nil {
 		if bd.Gate.BearerToken.Impersonate() || bktOwner.Equals(bearer.ResolveIssuer(*bd.Gate.BearerToken)) {
 			prm.BearerToken = bd.Gate.BearerToken
@ -743,7 +732,7 @@ func (n *Layer) removeCombinedObject(ctx context.Context, bkt *data.BucketInfo,
 	}

 	var parts []*data.PartInfo
-	if err = json.NewDecoder(combinedObj.Payload).Decode(&parts); err != nil {
+	if err = json.Unmarshal(combinedObj.Payload(), &parts); err != nil {
 		return fmt.Errorf("unmarshal combined object parts: %w", err)
 	}

@ -805,7 +794,6 @@ func (n *Layer) ResolveBucket(ctx context.Context, name string) (cid.ID, error)
 }

 func (n *Layer) DeleteBucket(ctx context.Context, p *DeleteBucketParams) error {
-	if !p.SkipCheck {
 	res, _, err := n.getAllObjectsVersions(ctx, commonVersionsListingParams{
 		BktInfo: p.BktInfo,
 		MaxKeys: 1,
@ -817,23 +805,7 @@ func (n *Layer) DeleteBucket(ctx context.Context, p *DeleteBucketParams) error {
 	if len(res) != 0 {
 		return errors.GetAPIError(errors.ErrBucketNotEmpty)
 	}
-	}

 	n.cache.DeleteBucket(p.BktInfo)
-
-	corsObj, err := n.treeService.GetBucketCORS(ctx, p.BktInfo)
-	if err != nil {
-		n.reqLogger(ctx).Error(logs.GetBucketCors, zap.Error(err))
-	}
-
-	err = n.frostFS.DeleteContainer(ctx, p.BktInfo.CID, p.SessionToken)
-	if err != nil {
-		return fmt.Errorf("delete container: %w", err)
-	}
-
-	if !corsObj.Container().Equals(p.BktInfo.CID) && !corsObj.Container().Equals(cid.ID{}) {
-		n.deleteCORSObject(ctx, p.BktInfo, corsObj)
-	}
-
-	return nil
+	return n.frostFS.DeleteContainer(ctx, p.BktInfo.CID, p.SessionToken)
 }
--- a/api/layer/multipart_upload.go
+++ b/api/layer/multipart_upload.go
@ -603,10 +603,10 @@ func (n *Layer) ListParts(ctx context.Context, p *ListPartsParams) (*ListPartsIn

 	if len(parts) > p.MaxParts {
 		res.IsTruncated = true
+		res.NextPartNumberMarker = parts[p.MaxParts-1].PartNumber
 		parts = parts[:p.MaxParts]
 	}

-	res.NextPartNumberMarker = parts[len(parts)-1].PartNumber
 	res.Parts = parts

 	return &res, nil
--- a/api/layer/object.go
+++ b/api/layer/object.go
@ -68,14 +68,20 @@ func newAddress(cnr cid.ID, obj oid.ID) oid.Address {

 // objectHead returns all object's headers.
 func (n *Layer) objectHead(ctx context.Context, bktInfo *data.BucketInfo, idObj oid.ID) (*object.Object, error) {
-	prm := PrmObjectHead{
+	prm := PrmObjectRead{
 		Container:  bktInfo.CID,
 		Object:     idObj,
+		WithHeader: true,
 	}

 	n.prepareAuthParameters(ctx, &prm.PrmAuth, bktInfo.Owner)

-	return n.frostFS.HeadObject(ctx, prm)
+	res, err := n.frostFS.ReadObject(ctx, prm)
+	if err != nil {
+		return nil, err
+	}
+
+	return res.Head, nil
 }

 func (n *Layer) initObjectPayloadReader(ctx context.Context, p getParams) (io.Reader, error) {
@ -94,7 +100,7 @@ func (n *Layer) initObjectPayloadReader(ctx context.Context, p getParams) (io.Re
 	}

 	var parts []*data.PartInfo
-	if err = json.NewDecoder(combinedObj.Payload).Decode(&parts); err != nil {
+	if err = json.Unmarshal(combinedObj.Payload(), &parts); err != nil {
 		return nil, fmt.Errorf("unmarshal combined object parts: %w", err)
 	}

@ -126,27 +132,16 @@ func (n *Layer) initObjectPayloadReader(ctx context.Context, p getParams) (io.Re
 // initializes payload reader of the FrostFS object.
 // Zero range corresponds to full payload (panics if only offset is set).
 func (n *Layer) initFrostFSObjectPayloadReader(ctx context.Context, p getFrostFSParams) (io.Reader, error) {
-	var prmAuth PrmAuth
-	n.prepareAuthParameters(ctx, &prmAuth, p.bktInfo.Owner)
-
-	if p.off+p.ln != 0 {
-		prm := PrmObjectRange{
-			PrmAuth:      prmAuth,
+	prm := PrmObjectRead{
 		Container:    p.bktInfo.CID,
 		Object:       p.oid,
+		WithPayload:  true,
 		PayloadRange: [2]uint64{p.off, p.ln},
 	}

-		return n.frostFS.RangeObject(ctx, prm)
-	}
+	n.prepareAuthParameters(ctx, &prm.PrmAuth, p.bktInfo.Owner)

-	prm := PrmObjectGet{
-		PrmAuth:   prmAuth,
-		Container: p.bktInfo.CID,
-		Object:    p.oid,
-	}
-
-	res, err := n.frostFS.GetObject(ctx, prm)
+	res, err := n.frostFS.ReadObject(ctx, prm)
 	if err != nil {
 		return nil, err
 	}
@ -155,25 +150,22 @@ func (n *Layer) initFrostFSObjectPayloadReader(ctx context.Context, p getFrostFS
 }

 // objectGet returns an object with payload in the object.
-func (n *Layer) objectGet(ctx context.Context, bktInfo *data.BucketInfo, objID oid.ID) (*Object, error) {
-	return n.objectGetBase(ctx, bktInfo, objID, PrmAuth{})
-}
-
-// objectGetWithAuth returns an object with payload in the object. Uses provided PrmAuth.
-func (n *Layer) objectGetWithAuth(ctx context.Context, bktInfo *data.BucketInfo, objID oid.ID, auth PrmAuth) (*Object, error) {
-	return n.objectGetBase(ctx, bktInfo, objID, auth)
-}
-
-func (n *Layer) objectGetBase(ctx context.Context, bktInfo *data.BucketInfo, objID oid.ID, auth PrmAuth) (*Object, error) {
-	prm := PrmObjectGet{
-		PrmAuth:   auth,
+func (n *Layer) objectGet(ctx context.Context, bktInfo *data.BucketInfo, objID oid.ID) (*object.Object, error) {
+	prm := PrmObjectRead{
 		Container:   bktInfo.CID,
 		Object:      objID,
+		WithHeader:  true,
+		WithPayload: true,
 	}

 	n.prepareAuthParameters(ctx, &prm.PrmAuth, bktInfo.Owner)

-	return n.frostFS.GetObject(ctx, prm)
+	res, err := n.frostFS.ReadObject(ctx, prm)
+	if err != nil {
+		return nil, err
+	}
+
+	return res.Head, nil
 }

 // MimeByFilePath detect mime type by file path extension.
@ -468,17 +460,7 @@ func (n *Layer) headVersion(ctx context.Context, bkt *data.BucketInfo, p *HeadOb

 // objectDelete puts tombstone object into frostfs.
 func (n *Layer) objectDelete(ctx context.Context, bktInfo *data.BucketInfo, idObj oid.ID) error {
-	return n.objectDeleteBase(ctx, bktInfo, idObj, PrmAuth{})
-}
-
-// objectDeleteWithAuth puts tombstone object into frostfs. Uses provided PrmAuth.
-func (n *Layer) objectDeleteWithAuth(ctx context.Context, bktInfo *data.BucketInfo, idObj oid.ID, auth PrmAuth) error {
-	return n.objectDeleteBase(ctx, bktInfo, idObj, auth)
-}
-
-func (n *Layer) objectDeleteBase(ctx context.Context, bktInfo *data.BucketInfo, idObj oid.ID, auth PrmAuth) error {
 	prm := PrmObjectDelete{
-		PrmAuth:   auth,
 		Container: bktInfo.CID,
 		Object:    idObj,
 	}
--- a/api/layer/system_object.go
+++ b/api/layer/system_object.go
@ -12,7 +12,6 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/object"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
-	cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
 	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
 )

@ -160,30 +159,24 @@ func (n *Layer) getCORS(ctx context.Context, bkt *data.BucketInfo) (*data.CORSCo
 		return cors, nil
 	}

-	addr, err := n.treeService.GetBucketCORS(ctx, bkt)
-	objNotFound := errorsStd.Is(err, ErrNodeNotFound)
-	if err != nil && !objNotFound {
+	objID, err := n.treeService.GetBucketCORS(ctx, bkt)
+	objIDNotFound := errorsStd.Is(err, ErrNodeNotFound)
+	if err != nil && !objIDNotFound {
 		return nil, err
 	}

-	if objNotFound {
+	if objIDNotFound {
 		return nil, fmt.Errorf("%w: %s", errors.GetAPIError(errors.ErrNoSuchCORSConfiguration), err.Error())
 	}

-	var prmAuth PrmAuth
-	corsBkt := bkt
-	if !addr.Container().Equals(bkt.CID) && !addr.Container().Equals(cid.ID{}) {
-		corsBkt = &data.BucketInfo{CID: addr.Container()}
-		prmAuth.PrivateKey = &n.gateKey.PrivateKey
-	}
-
-	obj, err := n.objectGetWithAuth(ctx, corsBkt, addr.Object(), prmAuth)
+	obj, err := n.objectGet(ctx, bkt, objID)
 	if err != nil {
-		return nil, fmt.Errorf("get cors object: %w", err)
+		return nil, err
 	}

 	cors := &data.CORSConfiguration{}
-	if err = xml.NewDecoder(obj.Payload).Decode(&cors); err != nil {
+
+	if err = xml.Unmarshal(obj.Payload(), &cors); err != nil {
 		return nil, fmt.Errorf("unmarshal cors: %w", err)
 	}

--- a/api/layer/tree_mock.go
+++ b/api/layer/tree_mock.go
@ -110,31 +110,28 @@ func (t *TreeServiceMock) GetSettingsNode(_ context.Context, bktInfo *data.Bucke
 	return settings, nil
 }

-func (t *TreeServiceMock) GetBucketCORS(_ context.Context, bktInfo *data.BucketInfo) (oid.Address, error) {
+func (t *TreeServiceMock) GetBucketCORS(_ context.Context, bktInfo *data.BucketInfo) (oid.ID, error) {
 	systemMap, ok := t.system[bktInfo.CID.EncodeToString()]
 	if !ok {
-		return oid.Address{}, nil
+		return oid.ID{}, nil
 	}

 	node, ok := systemMap["cors"]
 	if !ok {
-		return oid.Address{}, nil
+		return oid.ID{}, nil
 	}

-	var addr oid.Address
-	addr.SetContainer(bktInfo.CID)
-	addr.SetObject(node.OID)
-	return addr, nil
+	return node.OID, nil
 }

-func (t *TreeServiceMock) PutBucketCORS(_ context.Context, bktInfo *data.BucketInfo, addr oid.Address) ([]oid.Address, error) {
+func (t *TreeServiceMock) PutBucketCORS(_ context.Context, bktInfo *data.BucketInfo, objID oid.ID) ([]oid.ID, error) {
 	systemMap, ok := t.system[bktInfo.CID.EncodeToString()]
 	if !ok {
 		systemMap = make(map[string]*data.BaseNodeVersion)
 	}

 	systemMap["cors"] = &data.BaseNodeVersion{
-		OID: addr.Object(),
+		OID: objID,
 	}

 	t.system[bktInfo.CID.EncodeToString()] = systemMap
@ -142,7 +139,7 @@ func (t *TreeServiceMock) PutBucketCORS(_ context.Context, bktInfo *data.BucketI
 	return nil, ErrNoNodeToRemove
 }

-func (t *TreeServiceMock) DeleteBucketCORS(context.Context, *data.BucketInfo) ([]oid.Address, error) {
+func (t *TreeServiceMock) DeleteBucketCORS(context.Context, *data.BucketInfo) ([]oid.ID, error) {
 	panic("implement me")
 }

--- a/api/layer/tree_service.go
+++ b/api/layer/tree_service.go
@ -21,17 +21,17 @@ type TreeService interface {
 	// GetBucketCORS gets an object id that corresponds to object with bucket CORS.
 	//
 	// If object id is not found returns ErrNodeNotFound error.
-	GetBucketCORS(ctx context.Context, bktInfo *data.BucketInfo) (oid.Address, error)
+	GetBucketCORS(ctx context.Context, bktInfo *data.BucketInfo) (oid.ID, error)

 	// PutBucketCORS puts a node to a system tree and returns objectID of a previous cors config which must be deleted in FrostFS.
 	//
 	// If object ids to remove is not found returns ErrNoNodeToRemove error.
-	PutBucketCORS(ctx context.Context, bktInfo *data.BucketInfo, addr oid.Address) ([]oid.Address, error)
+	PutBucketCORS(ctx context.Context, bktInfo *data.BucketInfo, objID oid.ID) ([]oid.ID, error)

 	// DeleteBucketCORS removes a node from a system tree and returns objID which must be deleted in FrostFS.
 	//
 	// If object ids to remove is not found returns ErrNoNodeToRemove error.
-	DeleteBucketCORS(ctx context.Context, bktInfo *data.BucketInfo) ([]oid.Address, error)
+	DeleteBucketCORS(ctx context.Context, bktInfo *data.BucketInfo) ([]oid.ID, error)

 	GetObjectTagging(ctx context.Context, bktInfo *data.BucketInfo, objVersion *data.NodeVersion) (map[string]string, error)
 	PutObjectTagging(ctx context.Context, bktInfo *data.BucketInfo, objVersion *data.NodeVersion, tagSet map[string]string) error
--- a/api/middleware/auth.go
+++ b/api/middleware/auth.go
@ -5,6 +5,7 @@ import (
 	"errors"
 	"fmt"
 	"net/http"
+	"runtime/trace"
 	"time"

 	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/acl"
@ -48,6 +49,8 @@ var ErrNoAuthorizationHeader = errors.New("no authorization header")
 func Auth(center Center, log *zap.Logger) Func {
 	return func(h http.Handler) http.Handler {
 		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			reg := trace.StartRegion(r.Context(), "handler:auth")
+
 			ctx := r.Context()
 			reqInfo := GetReqInfo(ctx)
 			reqInfo.User = "anon"
@ -64,6 +67,7 @@ func Auth(center Center, log *zap.Logger) Func {
 					if _, wrErr := WriteErrorResponse(w, GetReqInfo(r.Context()), err); wrErr != nil {
 						reqLogOrDefault(ctx, log).Error(logs.FailedToWriteResponse, zap.Error(wrErr))
 					}
+					reg.End()
 					return
 				}
 			} else {
@ -75,6 +79,8 @@ func Auth(center Center, log *zap.Logger) Func {
 				reqLogOrDefault(ctx, log).Debug(logs.SuccessfulAuth, zap.String("accessKeyID", box.AuthHeaders.AccessKeyID))
 			}

+			reg.End()
+
 			h.ServeHTTP(w, r.WithContext(ctx))
 		})
 	}
@ -87,11 +93,13 @@ type FrostFSIDValidator interface {
 func FrostfsIDValidation(frostfsID FrostFSIDValidator, log *zap.Logger) Func {
 	return func(h http.Handler) http.Handler {
 		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			reg := trace.StartRegion(r.Context(), "handler:ffsid")
 			ctx := r.Context()
 			bd, err := GetBoxData(ctx)
 			if err != nil || bd.Gate.BearerToken == nil {
 				reqLogOrDefault(ctx, log).Debug(logs.AnonRequestSkipFrostfsIDValidation)
 				h.ServeHTTP(w, r)
+				reg.End()
 				return
 			}

@ -100,9 +108,11 @@ func FrostfsIDValidation(frostfsID FrostFSIDValidator, log *zap.Logger) Func {
 				if _, wrErr := WriteErrorResponse(w, GetReqInfo(r.Context()), err); wrErr != nil {
 					reqLogOrDefault(ctx, log).Error(logs.FailedToWriteResponse, zap.Error(wrErr))
 				}
+				reg.End()
 				return
 			}

+			reg.End()
 			h.ServeHTTP(w, r)
 		})
 	}
--- a/api/middleware/policy.go
+++ b/api/middleware/policy.go
@ -8,6 +8,7 @@ import (
 	"io"
 	"net/http"
 	"net/url"
+	"runtime/trace"
 	"strings"

 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
@ -83,6 +84,7 @@ type PolicyConfig struct {
 func PolicyCheck(cfg PolicyConfig) Func {
 	return func(h http.Handler) http.Handler {
 		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			reg := trace.StartRegion(r.Context(), "handler:policy")
 			ctx := r.Context()
 			if err := policyCheck(r, cfg); err != nil {
 				reqLogOrDefault(ctx, cfg.Log).Error(logs.PolicyValidationFailed, zap.Error(err))
@ -90,9 +92,11 @@ func PolicyCheck(cfg PolicyConfig) Func {
 				if _, wrErr := WriteErrorResponse(w, GetReqInfo(ctx), err); wrErr != nil {
 					reqLogOrDefault(ctx, cfg.Log).Error(logs.FailedToWriteResponse, zap.Error(wrErr))
 				}
+				reg.End()
 				return
 			}

+			reg.End()
 			h.ServeHTTP(w, r)
 		})
 	}
--- a/api/middleware/reqinfo.go
+++ b/api/middleware/reqinfo.go
@ -71,8 +71,6 @@ var (
 	// De-facto standard header keys.
 	xForwardedFor = http.CanonicalHeaderKey("X-Forwarded-For")
 	xRealIP       = http.CanonicalHeaderKey("X-Real-IP")
-	xForwardedProto  = http.CanonicalHeaderKey("X-Forwarded-Proto")
-	xForwardedScheme = http.CanonicalHeaderKey("X-Forwarded-Scheme")

 	// RFC7239 defines a new "Forwarded: " header designed to replace the
 	// existing use of X-Forwarded-* headers.
@ -81,9 +79,6 @@ var (
 	// Allows for a sub-match of the first value after 'for=' to the next
 	// comma, semi-colon or space. The match is case-insensitive.
 	forRegex = regexp.MustCompile(`(?i)(?:for=)([^(;|, )]+)(.*)`)
-	// Allows for a sub-match for the first instance of scheme (http|https)
-	// prefixed by 'proto='. The match is case-insensitive.
-	protoRegex = regexp.MustCompile(`(?i)^(;|,| )+(?:proto=)(https|http)`)
 )

 // NewReqInfo returns new ReqInfo based on parameters.
@ -296,31 +291,3 @@ func getSourceIP(r *http.Request) string {
 	}
 	return raddr
 }
-
-// GetSourceScheme retrieves the scheme from the X-Forwarded-Proto and RFC7239
-// Forwarded headers (in that order).
-func GetSourceScheme(r *http.Request) string {
-	var scheme string
-
-	// Retrieve the scheme from X-Forwarded-Proto.
-	if proto := r.Header.Get(xForwardedProto); proto != "" {
-		scheme = strings.ToLower(proto)
-	} else if proto = r.Header.Get(xForwardedScheme); proto != "" {
-		scheme = strings.ToLower(proto)
-	} else if proto := r.Header.Get(forwarded); proto != "" {
-		// match should contain at least two elements if the protocol was
-		// specified in the Forwarded header. The first element will always be
-		// the 'for=', which we ignore, subsequently we proceed to look for
-		// 'proto=' which should precede right after `for=` if not
-		// we simply ignore the values and return empty. This is in line
-		// with the approach we took for returning first ip from multiple
-		// params.
-		if match := forRegex.FindStringSubmatch(proto); len(match) > 1 {
-			if match = protoRegex.FindStringSubmatch(match[2]); len(match) > 1 {
-				scheme = strings.ToLower(match[2])
-			}
-		}
-	}
-
-	return scheme
-}
--- a/api/middleware/tracing.go
+++ b/api/middleware/tracing.go
@ -3,6 +3,7 @@ package middleware
 import (
 	"context"
 	"net/http"
+	gotrace "runtime/trace"
 	"sync"

 	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
@ -16,6 +17,12 @@ import (
 func Tracing() Func {
 	return func(h http.Handler) http.Handler {
 		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			if gotrace.IsEnabled() {
+				pctx, task := gotrace.NewTask(r.Context(), "request")
+				defer task.End()
+				r = r.WithContext(pctx)
+			}
+
 			appCtx, span := StartHTTPServerSpan(r, "REQUEST S3")
 			reqInfo := GetReqInfo(r.Context())
 			reqInfo.TraceID = span.SpanContext().TraceID().String()
--- a/api/router.go
+++ b/api/router.go
@ -4,6 +4,7 @@ import (
 	"context"
 	"fmt"
 	"net/http"
+	"runtime/trace"

 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
@ -154,6 +155,14 @@ func NewRouter(cfg Config) *chi.Mux {
 	}))

 	defaultRouter := chi.NewRouter()
+	defaultRouter.Use(func(handler http.Handler) http.Handler {
+		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			reg := trace.StartRegion(r.Context(), "handler:s3")
+			defer reg.End()
+			handler.ServeHTTP(w, r)
+		})
+	})
+
 	defaultRouter.Mount(fmt.Sprintf("/{%s}", s3middleware.BucketURLPrm), bucketRouter(cfg.Handler, cfg.Log))
 	defaultRouter.Get("/", named("ListBuckets", cfg.Handler.ListBucketsHandler))
 	attachErrorHandler(defaultRouter)
--- a/cmd/s3-authmate/modules/utils.go
+++ b/cmd/s3-authmate/modules/utils.go
@ -50,7 +50,7 @@ func createFrostFS(ctx context.Context, log *zap.Logger, cfg PoolConfig) (*frost
 		return nil, fmt.Errorf("dial pool: %w", err)
 	}

-	return frostfs.NewAuthmateFrostFS(frostfs.NewFrostFS(p, cfg.Key), log), nil
+	return frostfs.NewAuthmateFrostFS(frostfs.NewFrostFS(p, cfg.Key)), nil
 }

 func parsePolicies(val string) (authmate.ContainerPolicies, error) {
--- a/cmd/s3-gw/app.go
+++ b/cmd/s3-gw/app.go
@ -21,7 +21,6 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/auth"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/cache"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/handler"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/layer"
 	s3middleware "git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/middleware"
@ -38,8 +37,6 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/internal/wallet"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/metrics"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/pkg/service/tree"
-	"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/pool"
 	treepool "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/pool/tree"
@ -107,7 +104,6 @@ type (
 		retryMaxAttempts              int
 		retryMaxBackoff               time.Duration
 		retryStrategy                 handler.RetryStrategy
-		domains                       []string
 	}

 	maxClientsConfig struct {
@ -125,7 +121,7 @@ func newApp(ctx context.Context, log *Logger, v *viper.Viper) *App {
 	objPool, treePool, key := getPools(ctx, log.logger, v)

 	cfg := tokens.Config{
-		FrostFS:                     frostfs.NewAuthmateFrostFS(frostfs.NewFrostFS(objPool, key), log.logger),
+		FrostFS:                     frostfs.NewAuthmateFrostFS(frostfs.NewFrostFS(objPool, key)),
 		Key:                         key,
 		CacheConfig:                 getAccessBoxCacheConfig(v, log.logger),
 		RemovingCheckAfterDurations: fetchRemovingCheckInterval(v, log.logger),
@ -157,13 +153,13 @@ func (a *App) init(ctx context.Context) {
 	a.setRuntimeParameters()
 	a.initFrostfsID(ctx)
 	a.initPolicyStorage(ctx)
-	a.initAPI(ctx)
+	a.initAPI()
 	a.initMetrics()
 	a.initServers(ctx)
 	a.initTracing(ctx)
 }

-func (a *App) initLayer(ctx context.Context) {
+func (a *App) initLayer() {
 	a.initResolver()

 	// prepare random key for anonymous requests
@ -175,14 +171,6 @@ func (a *App) initLayer(ctx context.Context) {
 	var gateOwner user.ID
 	user.IDFromKey(&gateOwner, a.key.PrivateKey.PublicKey)

-	var corsCnrInfo *data.BucketInfo
-	if a.cfg.IsSet(cfgContainersCORS) {
-		corsCnrInfo, err = a.fetchContainerInfo(ctx, cfgContainersCORS)
-		if err != nil {
-			a.log.Fatal(logs.CouldNotFetchCORSContainerInfo, zap.Error(err))
-		}
-	}
-
 	layerCfg := &layer.Config{
 		Cache: layer.NewCache(getCacheOptions(a.cfg, a.log)),
 		AnonKey: layer.AnonymousKey{
@ -192,8 +180,6 @@ func (a *App) initLayer(ctx context.Context) {
 		Resolver:    a.bucketResolver,
 		TreeService: tree.NewTree(services.NewPoolWrapper(a.treePool), a.log),
 		Features:    a.settings,
-		GateKey:     a.key,
-		CORSCnrInfo: corsCnrInfo,
 	}

 	// prepare object layer
@ -232,7 +218,6 @@ func (s *appSettings) update(v *viper.Viper, log *zap.Logger) {
 	s.setRetryMaxAttempts(fetchRetryMaxAttempts(v))
 	s.setRetryMaxBackoff(fetchRetryMaxBackoff(v))
 	s.setRetryStrategy(fetchRetryStrategy(v))
-	s.setVHSSettings(v, log)
 }

 func (s *appSettings) updateNamespacesSettings(v *viper.Viper, log *zap.Logger) {
@ -247,15 +232,6 @@ func (s *appSettings) updateNamespacesSettings(v *viper.Viper, log *zap.Logger)
 	s.namespaces = nsConfig.Namespaces
 }

-func (s *appSettings) setVHSSettings(v *viper.Viper, _ *zap.Logger) {
-	domains := v.GetStringSlice(cfgListenDomains)
-
-	s.mu.Lock()
-	defer s.mu.Unlock()
-
-	s.domains = domains
-}
-
 func (s *appSettings) BypassContentEncodingInChunks() bool {
 	s.mu.RLock()
 	defer s.mu.RUnlock()
@ -458,14 +434,8 @@ func (s *appSettings) RetryStrategy() handler.RetryStrategy {
 	return s.retryStrategy
 }

-func (s *appSettings) Domains() []string {
-	s.mu.RLock()
-	defer s.mu.RUnlock()
-	return s.domains
-}
-
-func (a *App) initAPI(ctx context.Context) {
-	a.initLayer(ctx)
+func (a *App) initAPI() {
+	a.initLayer()
 	a.initHandler()
 }

@ -473,6 +443,7 @@ func (a *App) initMetrics() {
 	cfg := metrics.AppMetricsConfig{
 		Logger:         a.log,
 		PoolStatistics: frostfs.NewPoolStatistic(a.pool),
+		TreeStatistic:  a.treePool,
 		Enabled:        a.cfg.GetBool(cfgPrometheusEnabled),
 	}

@ -701,7 +672,8 @@ func (a *App) setHealthStatus() {
 // Serve runs HTTP server to handle S3 API requests.
 func (a *App) Serve(ctx context.Context) {
 	// Attach S3 API:
-	a.log.Info(logs.FetchDomainsPrepareToUseAPI, zap.Strings("domains", a.settings.Domains()))
+	domains := a.cfg.GetStringSlice(cfgListenDomains)
+	a.log.Info(logs.FetchDomainsPrepareToUseAPI, zap.Strings("domains", domains))

 	cfg := api.Config{
 		Throttle: middleware.ThrottleOpts{
@ -712,7 +684,7 @@ func (a *App) Serve(ctx context.Context) {
 		Center:  a.ctr,
 		Log:     a.log,
 		Metrics: a.metrics,
-		Domains: a.settings.Domains(),
+		Domains: domains,

 		MiddlewareSettings: a.settings,
 		PolicyChecker:      a.policyStorage,
@ -1063,32 +1035,3 @@ func (a *App) tryReconnect(ctx context.Context, sr *http.Server) bool {

 	return len(a.unbindServers) == 0
 }
-
-func (a *App) fetchContainerInfo(ctx context.Context, cfgKey string) (info *data.BucketInfo, err error) {
-	containerString := a.cfg.GetString(cfgKey)
-
-	var id cid.ID
-	if err = id.DecodeString(containerString); err != nil {
-		if id, err = a.bucketResolver.Resolve(ctx, containerString); err != nil {
-			return nil, fmt.Errorf("resolve container name %s: %w", containerString, err)
-		}
-	}
-
-	return getContainerInfo(ctx, id, a.pool)
-}
-
-func getContainerInfo(ctx context.Context, id cid.ID, frostFSPool *pool.Pool) (*data.BucketInfo, error) {
-	prm := pool.PrmContainerGet{
-		ContainerID: id,
-	}
-
-	res, err := frostFSPool.GetContainer(ctx, prm)
-	if err != nil {
-		return nil, err
-	}
-
-	return &data.BucketInfo{
-		CID:                     id,
-		HomomorphicHashDisabled: container.IsHomomorphicHashingDisabled(res),
-	}, nil
-}
--- a/cmd/s3-gw/app_settings.go
+++ b/cmd/s3-gw/app_settings.go
@ -176,9 +176,6 @@ const ( // Settings.

 	cfgSourceIPHeader = "source_ip_header"

-	// Containers.
-	cfgContainersCORS = "containers.cors"
-
 	// Command line args.
 	cmdHelp      = "help"
 	cmdVersion   = "version"
--- a/config/config.env
+++ b/config/config.env
@ -216,5 +216,3 @@ S3_GW_RETRY_MAX_BACKOFF=30s
 # Backoff strategy. `exponential` and `constant` are allowed.
 S3_GW_RETRY_STRATEGY=exponential

-# Containers properties
-S3_GW_CONTAINERS_CORS=AZjLTXfK4vs4ovxMic2xEJKSymMNLqdwq9JT64ASFCRj
--- a/config/config.yaml
+++ b/config/config.yaml
@ -252,7 +252,3 @@ retry:
  max_backoff: 30s
  # Backoff strategy. `exponential` and `constant` are allowed.
  strategy: exponential
-
-# Containers properties
-containers:
-  cors: AZjLTXfK4vs4ovxMic2xEJKSymMNLqdwq9JT64ASFCRj
--- a/creds/tokens/credentials.go
+++ b/creds/tokens/credentials.go
@ -92,7 +92,6 @@ type FrostFS interface {
 	//
 	// It returns exactly one non-nil value. It returns any error encountered which
 	// prevented the object payload from being read.
-	// Object must contain full payload.
 	GetCredsObject(context.Context, oid.Address) (*object.Object, error)
 }

--- a/docs/configuration.md
+++ b/docs/configuration.md
@ -192,7 +192,6 @@ There are some custom types used for brevity:
 | `proxy`            | [Proxy contract configuration](#proxy-section)                 |
 | `namespaces`       | [Namespaces configuration](#namespaces-section)                |
 | `retry`            | [Retry configuration](#retry-section)                          |
-| `containers`       | [Containers configuration](#containers-section)                |

 ### General section

@ -709,15 +708,3 @@ retry:
 | `max_backoff` | `duration` | yes           | `30s`         | Max delay before next attempt.                                                       |
 | `strategy`    | `string`   | yes           | `exponential` | Backoff strategy. `exponential` and `constant` are allowed.                          |

-# `containers` section
-
-Section for well-known containers to store s3-related data and settings.
-
-```yaml
-containers:
-   cors: AZjLTXfK4vs4ovxMic2xEJKSymMNLqdwq9JT64ASFCRj
-```
-
-| Parameter | Type     | SIGHUP reload | Default value | Description                                                                          |
-|-----------|----------|---------------|---------------|--------------------------------------------------------------------------------------|
-| `cors`    | `string` | no            |               | Container name for CORS configurations. If not set, container of the bucket is used. |
--- a/docs/extensions.md
+++ b/docs/extensions.md
@ -1,52 +0,0 @@
-# S3 API Extension
-
-## Bucket operations management
-
-### Action to delete bucket (DeleteBucket)
-
-Deletes bucket with all objects in it.
-
-#### Request Parameters
-
- **Bucket**
-
-  Specifies the bucket being deleted.
-
-
-#### Errors
-
- **NoSuchEntity**
-
-  The request was rejected because it referenced a resource entity that does not exist.
-
-  HTTP Status Code: 404
-
- **ServiceFailure**
-
-  The request processing has failed because of an unknown error, exception or failure.
-
-  HTTP Status Code: 500
-
-
-#### Example
-
-Sample Request
-
-```text
-DELETE / HTTP/1.1
-X-Amz-Force-Delete-Bucket: true
-Host: data.s3.<Region>.frostfs-s3-gw.com
-Date: Wed, 01 Mar  2024 12:00:00 GMT
-Authorization: authorization string
-```
-
-Sample Response
-
-```text
-HTTP/1.1 204 No Content
-        x-amz-id-2: JuKZqmXuiwFeDQxhD7M8KtsKobSzWA1QEjLbTMTagkKdBX2z7Il/jGhDeJ3j6s80
-        x-amz-request-id: 32FE2CEB32F5EE25
-        Date: Wed, 01 Mar  2006 12:00:00 GMT
-        Connection: close
-        Server: AmazonS3
-```
--- a/go.mod
+++ b/go.mod
@ -3,7 +3,7 @@ module git.frostfs.info/TrueCloudLab/frostfs-s3-gw
 go 1.21

 require (
-	git.frostfs.info/TrueCloudLab/frostfs-api-go/v2 v2.16.1-0.20240716113920-f517e3949164
+	git.frostfs.info/TrueCloudLab/frostfs-api-go/v2 v2.16.1-0.20240726072425-3dfa2f4fd65e
 	git.frostfs.info/TrueCloudLab/frostfs-contract v0.19.3-0.20240621131249-49e5270f673e
 	git.frostfs.info/TrueCloudLab/frostfs-observability v0.0.0-20230531082742-c97d21411eb6
 	git.frostfs.info/TrueCloudLab/frostfs-sdk-go v0.0.0-20240722121227-fa89999d919c
@ -36,6 +36,8 @@ require (
 	google.golang.org/protobuf v1.33.0
 )

+replace git.frostfs.info/TrueCloudLab/frostfs-sdk-go v0.0.0-20240722121227-fa89999d919c => git.frostfs.info/mbiryukova/frostfs-sdk-go v0.0.0-20240731133113-04024af80f29
+
 require (
 	git.frostfs.info/TrueCloudLab/frostfs-crypto v0.6.0 // indirect
 	git.frostfs.info/TrueCloudLab/hrw v1.2.1 // indirect
--- a/go.sum
+++ b/go.sum
@ -36,16 +36,14 @@ cloud.google.com/go/storage v1.8.0/go.mod h1:Wv1Oy7z6Yz3DshWRJFhqM/UCfaWIRTdp0RX
 cloud.google.com/go/storage v1.10.0/go.mod h1:FLPqc6j+Ki4BU591ie1oL6qBQGu2Bl/tZ9ullr3+Kg0=
 cloud.google.com/go/storage v1.14.0/go.mod h1:GrKmX003DSIwi9o29oFT7YDnHYwZoctc3fOKtUw0Xmo=
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
-git.frostfs.info/TrueCloudLab/frostfs-api-go/v2 v2.16.1-0.20240716113920-f517e3949164 h1:XxvwQKJT/f16qS3df5PBQPRYKkhy0/A7zH6644QpKD0=
-git.frostfs.info/TrueCloudLab/frostfs-api-go/v2 v2.16.1-0.20240716113920-f517e3949164/go.mod h1:OBDSr+DqV1z4VDouoX3YMleNc4DPBVBWTG3WDT2PK1o=
+git.frostfs.info/TrueCloudLab/frostfs-api-go/v2 v2.16.1-0.20240726072425-3dfa2f4fd65e h1:gEWT+70E/RvGkxtSv+PlyUN2vtJVymhQa1mypvrXukM=
+git.frostfs.info/TrueCloudLab/frostfs-api-go/v2 v2.16.1-0.20240726072425-3dfa2f4fd65e/go.mod h1:OBDSr+DqV1z4VDouoX3YMleNc4DPBVBWTG3WDT2PK1o=
 git.frostfs.info/TrueCloudLab/frostfs-contract v0.19.3-0.20240621131249-49e5270f673e h1:kcBqZBiFIUBATUqEuvVigtkJJWQ2Gug/eYXn967o3M4=
 git.frostfs.info/TrueCloudLab/frostfs-contract v0.19.3-0.20240621131249-49e5270f673e/go.mod h1:F/fe1OoIDKr5Bz99q4sriuHDuf3aZefZy9ZsCqEtgxc=
 git.frostfs.info/TrueCloudLab/frostfs-crypto v0.6.0 h1:FxqFDhQYYgpe41qsIHVOcdzSVCB8JNSfPG7Uk4r2oSk=
 git.frostfs.info/TrueCloudLab/frostfs-crypto v0.6.0/go.mod h1:RUIKZATQLJ+TaYQa60X2fTDwfuhMfm8Ar60bQ5fr+vU=
 git.frostfs.info/TrueCloudLab/frostfs-observability v0.0.0-20230531082742-c97d21411eb6 h1:aGQ6QaAnTerQ5Dq5b2/f9DUQtSqPkZZ/bkMx/HKuLCo=
 git.frostfs.info/TrueCloudLab/frostfs-observability v0.0.0-20230531082742-c97d21411eb6/go.mod h1:W8Nn08/l6aQ7UlIbpF7FsQou7TVpcRD1ZT1KG4TrFhE=
-git.frostfs.info/TrueCloudLab/frostfs-sdk-go v0.0.0-20240722121227-fa89999d919c h1:8ZS6eUFnOhzUo9stFqwq1Zyq+Y5YNcYAidCGICcZVL4=
-git.frostfs.info/TrueCloudLab/frostfs-sdk-go v0.0.0-20240722121227-fa89999d919c/go.mod h1:vluJ/+yQMcq8ZIZZSA7Te+JKClr0lgtRErjICvb8wto=
 git.frostfs.info/TrueCloudLab/hrw v1.2.1 h1:ccBRK21rFvY5R1WotI6LNoPlizk7qSvdfD8lNIRudVc=
 git.frostfs.info/TrueCloudLab/hrw v1.2.1/go.mod h1:C1Ygde2n843yTZEQ0FP69jYiuaYV0kriLvP4zm8JuvM=
 git.frostfs.info/TrueCloudLab/policy-engine v0.0.0-20240611102930-ac965e8d176a h1:Bk1fB4cQASPKgAVGCdlBOEp5ohZfDxqK6fZM8eP+Emo=
@ -56,6 +54,8 @@ git.frostfs.info/TrueCloudLab/tzhash v1.8.0 h1:UFMnUIk0Zh17m8rjGHJMqku2hCgaXDqjq
 git.frostfs.info/TrueCloudLab/tzhash v1.8.0/go.mod h1:dhY+oy274hV8wGvGL4MwwMpdL3GYvaX1a8GQZQHvlF8=
 git.frostfs.info/TrueCloudLab/zapjournald v0.0.0-20240124114243-cb2e66427d02 h1:HeY8n27VyPRQe49l/fzyVMkWEB2fsLJYKp64pwA7tz4=
 git.frostfs.info/TrueCloudLab/zapjournald v0.0.0-20240124114243-cb2e66427d02/go.mod h1:rQFJJdEOV7KbbMtQYR2lNfiZk+ONRDJSbMCTWxKt8Fw=
+git.frostfs.info/mbiryukova/frostfs-sdk-go v0.0.0-20240731133113-04024af80f29 h1:sYkxbvaKd9Q9flezuxy21Tr3Of+4Y+mtXFk6+JxFRHw=
+git.frostfs.info/mbiryukova/frostfs-sdk-go v0.0.0-20240731133113-04024af80f29/go.mod h1:DlJmgV4/qkFkx2ab+YWznlMijiF2yZHnrJswJOB7XGs=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
 github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
--- a/internal/frostfs/authmate.go
+++ b/internal/frostfs/authmate.go
@ -4,22 +4,18 @@ import (
 	"bytes"
 	"context"
 	"fmt"
-	"io"
 	"strconv"
 	"time"

 	objectv2 "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/object"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/layer"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/middleware"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/authmate"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/creds/tokens"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/internal/frostfs/crdt"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/internal/logs"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/acl"
 	cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
 	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
-	"go.uber.org/zap"
 )

 const (
@ -29,12 +25,11 @@ const (
 // AuthmateFrostFS is a mediator which implements authmate.FrostFS through pool.Pool.
 type AuthmateFrostFS struct {
 	frostFS layer.FrostFS
-	log     *zap.Logger
 }

 // NewAuthmateFrostFS creates new AuthmateFrostFS using provided pool.Pool.
-func NewAuthmateFrostFS(frostFS layer.FrostFS, log *zap.Logger) *AuthmateFrostFS {
-	return &AuthmateFrostFS{frostFS: frostFS, log: log}
+func NewAuthmateFrostFS(frostFS layer.FrostFS) *AuthmateFrostFS {
+	return &AuthmateFrostFS{frostFS: frostFS}
 }

 // ContainerExists implements authmate.FrostFS interface method.
@ -84,27 +79,17 @@ func (x *AuthmateFrostFS) GetCredsObject(ctx context.Context, addr oid.Address)
 		credObjID = last.ObjID
 	}

-	res, err := x.frostFS.GetObject(ctx, layer.PrmObjectGet{
+	res, err := x.frostFS.ReadObject(ctx, layer.PrmObjectRead{
 		Container:   addr.Container(),
 		Object:      credObjID,
+		WithPayload: true,
+		WithHeader:  true,
 	})
 	if err != nil {
 		return nil, err
 	}

-	defer func() {
-		if closeErr := res.Payload.Close(); closeErr != nil {
-			x.reqLogger(ctx).Warn(logs.CloseCredsObjectPayload, zap.Error(closeErr))
-		}
-	}()
-
-	data, err := io.ReadAll(res.Payload)
-	if err != nil {
-		return nil, err
-	}
-	res.Header.SetPayload(data)
-
-	return &res.Header, err
+	return res.Head, err
 }

 // CreateObject implements authmate.FrostFS interface method.
@ -158,28 +143,21 @@ func (x *AuthmateFrostFS) getCredVersions(ctx context.Context, addr oid.Address)
 	versions := crdt.NewObjectVersions(objCredSystemName)

 	for _, id := range credVersions {
-		objVersion, err := x.frostFS.HeadObject(ctx, layer.PrmObjectHead{
+		objVersion, err := x.frostFS.ReadObject(ctx, layer.PrmObjectRead{
 			Container:  addr.Container(),
 			Object:     id,
+			WithHeader: true,
 		})
 		if err != nil {
 			return nil, fmt.Errorf("head crdt access box '%s': %w", id.EncodeToString(), err)
 		}

-		versions.AppendVersion(crdt.NewObjectVersion(objVersion))
+		versions.AppendVersion(crdt.NewObjectVersion(objVersion.Head))
 	}

 	return versions, nil
 }

-func (x *AuthmateFrostFS) reqLogger(ctx context.Context) *zap.Logger {
-	reqLogger := middleware.GetReqLog(ctx)
-	if reqLogger != nil {
-		return reqLogger
-	}
-	return x.log
-}
-
 func credVersionSysName(cnrID cid.ID, objID oid.ID) string {
 	return cnrID.EncodeToString() + "0" + objID.EncodeToString()
 }
--- a/internal/frostfs/authmate_test.go
+++ b/internal/frostfs/authmate_test.go
@ -14,7 +14,6 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/user"
 	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
 	"github.com/stretchr/testify/require"
-	"go.uber.org/zap/zaptest"
 )

 func TestGetCredsObject(t *testing.T) {
@ -36,7 +35,7 @@ func TestGetCredsObject(t *testing.T) {
 		},
 	}})

-	frostfs := NewAuthmateFrostFS(layer.NewTestFrostFS(key), zaptest.NewLogger(t))
+	frostfs := NewAuthmateFrostFS(layer.NewTestFrostFS(key))

 	cid, err := frostfs.CreateContainer(ctx, authmate.PrmContainerCreate{
 		FriendlyName: bktName,
--- a/internal/frostfs/frostfs.go
+++ b/internal/frostfs/frostfs.go
@ -6,6 +6,7 @@ import (
 	"fmt"
 	"io"
 	"math"
+	"runtime/trace"
 	"strconv"
 	"time"

@ -53,6 +54,9 @@ func NewFrostFS(p *pool.Pool, key *keys.PrivateKey) *FrostFS {

 // TimeToEpoch implements frostfs.FrostFS interface method.
 func (x *FrostFS) TimeToEpoch(ctx context.Context, now, futureTime time.Time) (uint64, uint64, error) {
+	reg := trace.StartRegion(ctx, "ffs:TimeToEpoch")
+	defer reg.End()
+
 	dur := futureTime.Sub(now)
 	if dur < 0 {
 		return 0, 0, fmt.Errorf("time '%s' must be in the future (after %s)",
@ -89,6 +93,9 @@ func (x *FrostFS) TimeToEpoch(ctx context.Context, now, futureTime time.Time) (u

 // Container implements frostfs.FrostFS interface method.
 func (x *FrostFS) Container(ctx context.Context, layerPrm layer.PrmContainer) (*container.Container, error) {
+	reg := trace.StartRegion(ctx, "ffs:Container")
+	defer reg.End()
+
 	prm := pool.PrmContainerGet{
 		ContainerID: layerPrm.ContainerID,
 		Session:     layerPrm.SessionToken,
@ -104,6 +111,9 @@ func (x *FrostFS) Container(ctx context.Context, layerPrm layer.PrmContainer) (*

 // CreateContainer implements frostfs.FrostFS interface method.
 func (x *FrostFS) CreateContainer(ctx context.Context, prm layer.PrmContainerCreate) (*layer.ContainerCreateResult, error) {
+	reg := trace.StartRegion(ctx, "ffs:CreateContainer")
+	defer reg.End()
+
 	var cnr container.Container
 	cnr.Init()
 	cnr.SetPlacementPolicy(prm.Policy)
@ -152,6 +162,9 @@ func (x *FrostFS) CreateContainer(ctx context.Context, prm layer.PrmContainerCre

 // UserContainers implements frostfs.FrostFS interface method.
 func (x *FrostFS) UserContainers(ctx context.Context, layerPrm layer.PrmUserContainers) ([]cid.ID, error) {
+	reg := trace.StartRegion(ctx, "ffs:UserContainers")
+	defer reg.End()
+
 	prm := pool.PrmContainerList{
 		OwnerID: layerPrm.UserID,
 		Session: layerPrm.SessionToken,
@ -163,6 +176,9 @@ func (x *FrostFS) UserContainers(ctx context.Context, layerPrm layer.PrmUserCont

 // DeleteContainer implements frostfs.FrostFS interface method.
 func (x *FrostFS) DeleteContainer(ctx context.Context, id cid.ID, token *session.Container) error {
+	reg := trace.StartRegion(ctx, "ffs:DeleteContainer")
+	defer reg.End()
+
 	prm := pool.PrmContainerDelete{ContainerID: id, Session: token, WaitParams: &x.await}

 	err := x.pool.DeleteContainer(ctx, prm)
@ -171,6 +187,9 @@ func (x *FrostFS) DeleteContainer(ctx context.Context, id cid.ID, token *session

 // CreateObject implements frostfs.FrostFS interface method.
 func (x *FrostFS) CreateObject(ctx context.Context, prm layer.PrmObjectCreate) (oid.ID, error) {
+	reg := trace.StartRegion(ctx, "ffs:CreateObject")
+	defer reg.End()
+
 	attrNum := len(prm.Attributes) + 1 // + creation time

 	if prm.Filepath != "" {
@ -259,31 +278,11 @@ func (x payloadReader) Read(p []byte) (int, error) {
 	return n, handleObjectError("read payload", err)
 }

-// HeadObject implements frostfs.FrostFS interface method.
-func (x *FrostFS) HeadObject(ctx context.Context, prm layer.PrmObjectHead) (*object.Object, error) {
-	var addr oid.Address
-	addr.SetContainer(prm.Container)
-	addr.SetObject(prm.Object)
+// ReadObject implements frostfs.FrostFS interface method.
+func (x *FrostFS) ReadObject(ctx context.Context, prm layer.PrmObjectRead) (*layer.ObjectPart, error) {
+	reg := trace.StartRegion(ctx, "ffs:ReadObject")
+	defer reg.End()

-	var prmHead pool.PrmObjectHead
-	prmHead.SetAddress(addr)
-
-	if prm.BearerToken != nil {
-		prmHead.UseBearer(*prm.BearerToken)
-	} else {
-		prmHead.UseKey(prm.PrivateKey)
-	}
-
-	res, err := x.pool.HeadObject(ctx, prmHead)
-	if err != nil {
-		return nil, handleObjectError("read object header via connection pool", err)
-	}
-
-	return &res, nil
-}
-
-// GetObject implements frostfs.FrostFS interface method.
-func (x *FrostFS) GetObject(ctx context.Context, prm layer.PrmObjectGet) (*layer.Object, error) {
 	var addr oid.Address
 	addr.SetContainer(prm.Container)
 	addr.SetObject(prm.Object)
@ -297,22 +296,54 @@ func (x *FrostFS) GetObject(ctx context.Context, prm layer.PrmObjectGet) (*layer
 		prmGet.UseKey(prm.PrivateKey)
 	}

+	if prm.WithHeader {
+		if prm.WithPayload {
 			res, err := x.pool.GetObject(ctx, prmGet)
 			if err != nil {
 				return nil, handleObjectError("init full object reading via connection pool", err)
 			}

-	return &layer.Object{
-		Header:  res.Header,
+			defer res.Payload.Close()
+
+			payload, err := io.ReadAll(res.Payload)
+			if err != nil {
+				return nil, handleObjectError("read full object payload", err)
+			}
+
+			res.Header.SetPayload(payload)
+
+			return &layer.ObjectPart{
+				Head: &res.Header,
+			}, nil
+		}
+
+		var prmHead pool.PrmObjectHead
+		prmHead.SetAddress(addr)
+
+		if prm.BearerToken != nil {
+			prmHead.UseBearer(*prm.BearerToken)
+		} else {
+			prmHead.UseKey(prm.PrivateKey)
+		}
+
+		hdr, err := x.pool.HeadObject(ctx, prmHead)
+		if err != nil {
+			return nil, handleObjectError("read object header via connection pool", err)
+		}
+
+		return &layer.ObjectPart{
+			Head: &hdr,
+		}, nil
+	} else if prm.PayloadRange[0]+prm.PayloadRange[1] == 0 {
+		res, err := x.pool.GetObject(ctx, prmGet)
+		if err != nil {
+			return nil, handleObjectError("init full payload range reading via connection pool", err)
+		}
+
+		return &layer.ObjectPart{
 			Payload: res.Payload,
 		}, nil
-}
-
-// RangeObject implements frostfs.FrostFS interface method.
-func (x *FrostFS) RangeObject(ctx context.Context, prm layer.PrmObjectRange) (io.ReadCloser, error) {
-	var addr oid.Address
-	addr.SetContainer(prm.Container)
-	addr.SetObject(prm.Object)
+	}

 	var prmRange pool.PrmObjectRange
 	prmRange.SetAddress(addr)
@ -330,11 +361,16 @@ func (x *FrostFS) RangeObject(ctx context.Context, prm layer.PrmObjectRange) (io
 		return nil, handleObjectError("init payload range reading via connection pool", err)
 	}

-	return payloadReader{&res}, nil
+	return &layer.ObjectPart{
+		Payload: payloadReader{&res},
+	}, nil
 }

 // DeleteObject implements frostfs.FrostFS interface method.
 func (x *FrostFS) DeleteObject(ctx context.Context, prm layer.PrmObjectDelete) error {
+	reg := trace.StartRegion(ctx, "ffs:DeleteObject")
+	defer reg.End()
+
 	var addr oid.Address
 	addr.SetContainer(prm.Container)
 	addr.SetObject(prm.Object)
@ -354,6 +390,9 @@ func (x *FrostFS) DeleteObject(ctx context.Context, prm layer.PrmObjectDelete) e

 // SearchObjects implements frostfs.FrostFS interface method.
 func (x *FrostFS) SearchObjects(ctx context.Context, prm layer.PrmObjectSearch) ([]oid.ID, error) {
+	reg := trace.StartRegion(ctx, "ffs:SearchObject")
+	defer reg.End()
+
 	filters := object.NewSearchFilters()
 	filters.AddRootFilter()

--- a/internal/frostfs/services/pool_wrapper.go
+++ b/internal/frostfs/services/pool_wrapper.go
@ -5,6 +5,7 @@ import (
 	"errors"
 	"fmt"
 	"io"
+	"runtime/trace"

 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/middleware"
@ -78,6 +79,9 @@ func NewPoolWrapper(p *treepool.Pool) *PoolWrapper {
 }

 func (w *PoolWrapper) GetNodes(ctx context.Context, prm *tree.GetNodesParams) ([]tree.NodeResponse, error) {
+	reg := trace.StartRegion(ctx, "tree:GetNodes")
+	defer reg.End()
+
 	poolPrm := treepool.GetNodesParams{
 		CID:           prm.BktInfo.CID,
 		TreeID:        prm.TreeID,
@ -103,6 +107,9 @@ func (w *PoolWrapper) GetNodes(ctx context.Context, prm *tree.GetNodesParams) ([
 }

 func (w *PoolWrapper) GetSubTree(ctx context.Context, bktInfo *data.BucketInfo, treeID string, rootID []uint64, depth uint32) ([]tree.NodeResponse, error) {
+	reg := trace.StartRegion(ctx, "tree:GetSubTree")
+	defer reg.End()
+
 	poolPrm := treepool.GetSubTreeParams{
 		CID:         bktInfo.CID,
 		TreeID:      treeID,
@ -177,6 +184,9 @@ func (s *SubTreeStreamImpl) Next() (tree.NodeResponse, error) {
 }

 func (w *PoolWrapper) GetSubTreeStream(ctx context.Context, bktInfo *data.BucketInfo, treeID string, rootID []uint64, depth uint32) (tree.SubTreeStream, error) {
+	reg := trace.StartRegion(ctx, "tree:GetSubTreeStream")
+	defer reg.End()
+
 	poolPrm := treepool.GetSubTreeParams{
 		CID:         bktInfo.CID,
 		TreeID:      treeID,
@ -206,6 +216,9 @@ func (w *PoolWrapper) GetSubTreeStream(ctx context.Context, bktInfo *data.Bucket
 }

 func (w *PoolWrapper) AddNode(ctx context.Context, bktInfo *data.BucketInfo, treeID string, parent uint64, meta map[string]string) (uint64, error) {
+	reg := trace.StartRegion(ctx, "tree:AddNode")
+	defer reg.End()
+
 	nodeID, err := w.p.AddNode(ctx, treepool.AddNodeParams{
 		CID:         bktInfo.CID,
 		TreeID:      treeID,
@ -217,6 +230,9 @@ func (w *PoolWrapper) AddNode(ctx context.Context, bktInfo *data.BucketInfo, tre
 }

 func (w *PoolWrapper) AddNodeByPath(ctx context.Context, bktInfo *data.BucketInfo, treeID string, path []string, meta map[string]string) (uint64, error) {
+	reg := trace.StartRegion(ctx, "tree:AddNodeByPath")
+	defer reg.End()
+
 	nodeID, err := w.p.AddNodeByPath(ctx, treepool.AddNodeByPathParams{
 		CID:           bktInfo.CID,
 		TreeID:        treeID,
@ -229,6 +245,9 @@ func (w *PoolWrapper) AddNodeByPath(ctx context.Context, bktInfo *data.BucketInf
 }

 func (w *PoolWrapper) MoveNode(ctx context.Context, bktInfo *data.BucketInfo, treeID string, nodeID, parentID uint64, meta map[string]string) error {
+	reg := trace.StartRegion(ctx, "tree:MoveNode")
+	defer reg.End()
+
 	return handleError(w.p.MoveNode(ctx, treepool.MoveNodeParams{
 		CID:         bktInfo.CID,
 		TreeID:      treeID,
@ -240,6 +259,9 @@ func (w *PoolWrapper) MoveNode(ctx context.Context, bktInfo *data.BucketInfo, tr
 }

 func (w *PoolWrapper) RemoveNode(ctx context.Context, bktInfo *data.BucketInfo, treeID string, nodeID uint64) error {
+	reg := trace.StartRegion(ctx, "tree:RemoveNode")
+	defer reg.End()
+
 	return handleError(w.p.RemoveNode(ctx, treepool.RemoveNodeParams{
 		CID:         bktInfo.CID,
 		TreeID:      treeID,
--- a/internal/logs/logs.go
+++ b/internal/logs/logs.go
@ -148,10 +148,7 @@ const (
 	BucketCORSNodeHasMultipleIDs                         = "bucket cors node has multiple ids"
 	SystemNodeHasMultipleIDs                             = "system node has multiple ids"
 	FailedToRemoveOldSystemNode                          = "failed to remove old system node"
-	FailedToParseAddressInTreeNode                       = "failed to parse object addr in tree node"
 	UnexpectedMultiNodeIDsInSubTreeMultiParts            = "unexpected multi node ids in sub tree multi parts"
 	FoundSeveralSystemNodes                              = "found several system nodes"
 	FailedToParsePartInfo                                = "failed to parse part info"
-	CouldNotFetchCORSContainerInfo                       = "couldn't fetch CORS container info"
-	CloseCredsObjectPayload                              = "close creds object payload"
 )
--- a/metrics/app.go
+++ b/metrics/app.go
@ -20,6 +20,7 @@ type AppMetrics struct {
 type AppMetricsConfig struct {
 	Logger         *zap.Logger
 	PoolStatistics StatisticScraper
+	TreeStatistic  TreePoolStatistic
 	Registerer     prometheus.Registerer
 	Enabled        bool
 }
@ -36,7 +37,7 @@ func NewAppMetrics(cfg AppMetricsConfig) *AppMetrics {

 	return &AppMetrics{
 		logger:  cfg.Logger,
-		gate:    NewGateMetrics(cfg.PoolStatistics, registry),
+		gate:    NewGateMetrics(cfg.PoolStatistics, cfg.TreeStatistic, registry),
 		enabled: cfg.Enabled,
 	}
 }
--- a/metrics/desc.go
+++ b/metrics/desc.go
@ -48,6 +48,14 @@ var appMetricsDesc = map[string]map[string]Description{
 			Help:           "Average request duration (in milliseconds) for specific method on node in pool",
 			VariableLabels: []string{"node", "method"},
 		},
+		interAvgRequestDurationMetric: Description{
+			Type:           dto.MetricType_GAUGE,
+			Namespace:      namespace,
+			Subsystem:      poolSubsystem,
+			Name:           interAvgRequestDurationMetric,
+			Help:           "Intermediate average request duration (in milliseconds) for specific method on node in pool",
+			VariableLabels: []string{"node", "method"},
+		},
 		currentNodesMetric: Description{
 			Type:           dto.MetricType_GAUGE,
 			Namespace:      namespace,
@ -144,6 +152,24 @@ var appMetricsDesc = map[string]map[string]Description{
 			VariableLabels: []string{"endpoint"},
 		},
 	},
+	treePoolSubsystem: {
+		avgRequestDurationMetric: Description{
+			Type:           dto.MetricType_GAUGE,
+			Namespace:      namespace,
+			Subsystem:      treePoolSubsystem,
+			Name:           avgRequestDurationMetric,
+			Help:           "Average request duration (in milliseconds) for specific method in tree pool",
+			VariableLabels: []string{"method"},
+		},
+		interAvgRequestDurationMetric: Description{
+			Type:           dto.MetricType_GAUGE,
+			Namespace:      namespace,
+			Subsystem:      treePoolSubsystem,
+			Name:           interAvgRequestDurationMetric,
+			Help:           "Intermediate average request duration (in milliseconds) for specific method in tree pool",
+			VariableLabels: []string{"method"},
+		},
+	},
 }

 type Description struct {
--- a/metrics/gate.go
+++ b/metrics/gate.go
@ -4,6 +4,7 @@ import (
 	"net/http"

 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/pool"
+	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/pool/tree"
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/client_golang/prometheus/promhttp"
 	dto "github.com/prometheus/client_model/go"
@ -15,6 +16,10 @@ type StatisticScraper interface {
 	Statistic() pool.Statistic
 }

+type TreePoolStatistic interface {
+	Statistic() tree.Statistic
+}
+
 type GateMetrics struct {
 	registry   prometheus.Registerer
 	State      *StateMetrics
@ -22,9 +27,10 @@ type GateMetrics struct {
 	Billing    *billingMetrics
 	Stats      *APIStatMetrics
 	HTTPServer *httpServerMetrics
+	TreePool   *treePoolMetricsCollector
 }

-func NewGateMetrics(scraper StatisticScraper, registry prometheus.Registerer) *GateMetrics {
+func NewGateMetrics(scraper StatisticScraper, treeScraper TreePoolStatistic, registry prometheus.Registerer) *GateMetrics {
 	stateMetric := newStateMetrics()
 	registry.MustRegister(stateMetric)

@ -40,6 +46,9 @@ func NewGateMetrics(scraper StatisticScraper, registry prometheus.Registerer) *G
 	serverMetric := newHTTPServerMetrics()
 	registry.MustRegister(serverMetric)

+	treePoolMetric := newTreePoolMetricsCollector(treeScraper)
+	registry.MustRegister(treePoolMetric)
+
 	return &GateMetrics{
 		registry:   registry,
 		State:      stateMetric,
@ -47,6 +56,7 @@ func NewGateMetrics(scraper StatisticScraper, registry prometheus.Registerer) *G
 		Billing:    billingMetric,
 		Stats:      statsMetric,
 		HTTPServer: serverMetric,
+		TreePool:   treePoolMetric,
 	}
 }

--- a/metrics/pool.go
+++ b/metrics/pool.go
@ -15,6 +15,7 @@ const (
 	overallNodeRequestsMetric     = "overall_node_requests"
 	currentErrorMetric            = "current_errors"
 	avgRequestDurationMetric      = "avg_request_duration"
+	interAvgRequestDurationMetric = "inter_avg_request_duration"
 	currentNodesMetric            = "current_nodes"
 )

@ -43,6 +44,7 @@ type poolMetricsCollector struct {
 	overallNodeRequests  *prometheus.GaugeVec
 	currentErrors        *prometheus.GaugeVec
 	requestDuration      *prometheus.GaugeVec
+	interRequestDuration *prometheus.GaugeVec
 	currentNodes         *prometheus.GaugeVec
 }

@ -54,6 +56,7 @@ func newPoolMetricsCollector(scraper StatisticScraper) *poolMetricsCollector {
 		overallNodeRequests:  mustNewGaugeVec(appMetricsDesc[poolSubsystem][overallNodeRequestsMetric]),
 		currentErrors:        mustNewGaugeVec(appMetricsDesc[poolSubsystem][currentErrorMetric]),
 		requestDuration:      mustNewGaugeVec(appMetricsDesc[poolSubsystem][avgRequestDurationMetric]),
+		interRequestDuration: mustNewGaugeVec(appMetricsDesc[poolSubsystem][interAvgRequestDurationMetric]),
 		currentNodes:         mustNewGaugeVec(appMetricsDesc[poolSubsystem][currentNodesMetric]),
 	}
 }
@ -65,6 +68,7 @@ func (m *poolMetricsCollector) Collect(ch chan<- prometheus.Metric) {
 	m.overallNodeRequests.Collect(ch)
 	m.currentErrors.Collect(ch)
 	m.requestDuration.Collect(ch)
+	m.interRequestDuration.Collect(ch)
 	m.currentNodes.Collect(ch)
 }

@ -74,6 +78,7 @@ func (m *poolMetricsCollector) Describe(descs chan<- *prometheus.Desc) {
 	m.overallNodeRequests.Describe(descs)
 	m.currentErrors.Describe(descs)
 	m.requestDuration.Describe(descs)
+	m.interRequestDuration.Describe(descs)
 	m.currentNodes.Describe(descs)
 }

@ -84,6 +89,7 @@ func (m *poolMetricsCollector) updateStatistic() {
 	m.overallNodeRequests.Reset()
 	m.currentErrors.Reset()
 	m.requestDuration.Reset()
+	m.interRequestDuration.Reset()
 	m.currentNodes.Reset()

 	for _, node := range stat.Nodes() {
@ -117,4 +123,20 @@ func (m *poolMetricsCollector) updateRequestsDuration(node pool.NodeStatistic) {
 	m.requestDuration.WithLabelValues(node.Address(), methodHeadObject).Set(float64(node.AverageHeadObject().Milliseconds()))
 	m.requestDuration.WithLabelValues(node.Address(), methodRangeObject).Set(float64(node.AverageRangeObject().Milliseconds()))
 	m.requestDuration.WithLabelValues(node.Address(), methodCreateSession).Set(float64(node.AverageCreateSession().Milliseconds()))
+
+	m.interRequestDuration.WithLabelValues(node.Address(), methodGetBalance).Set(float64(node.InterAverageGetBalance().Milliseconds()))
+	m.interRequestDuration.WithLabelValues(node.Address(), methodPutContainer).Set(float64(node.InterAveragePutContainer().Milliseconds()))
+	m.interRequestDuration.WithLabelValues(node.Address(), methodGetContainer).Set(float64(node.InterAverageGetContainer().Milliseconds()))
+	m.interRequestDuration.WithLabelValues(node.Address(), methodListContainer).Set(float64(node.InterAverageListContainer().Milliseconds()))
+	m.interRequestDuration.WithLabelValues(node.Address(), methodDeleteContainer).Set(float64(node.InterAverageDeleteContainer().Milliseconds()))
+	m.interRequestDuration.WithLabelValues(node.Address(), methodGetContainerEacl).Set(float64(node.InterAverageGetContainerEACL().Milliseconds()))
+	m.interRequestDuration.WithLabelValues(node.Address(), methodSetContainerEacl).Set(float64(node.InterAverageSetContainerEACL().Milliseconds()))
+	m.interRequestDuration.WithLabelValues(node.Address(), methodEndpointInfo).Set(float64(node.InterAverageEndpointInfo().Milliseconds()))
+	m.interRequestDuration.WithLabelValues(node.Address(), methodNetworkInfo).Set(float64(node.InterAverageNetworkInfo().Milliseconds()))
+	m.interRequestDuration.WithLabelValues(node.Address(), methodPutObject).Set(float64(node.InterAveragePutObject().Milliseconds()))
+	m.interRequestDuration.WithLabelValues(node.Address(), methodDeleteObject).Set(float64(node.InterAverageDeleteObject().Milliseconds()))
+	m.interRequestDuration.WithLabelValues(node.Address(), methodGetObject).Set(float64(node.InterAverageGetObject().Milliseconds()))
+	m.interRequestDuration.WithLabelValues(node.Address(), methodHeadObject).Set(float64(node.InterAverageHeadObject().Milliseconds()))
+	m.interRequestDuration.WithLabelValues(node.Address(), methodRangeObject).Set(float64(node.InterAverageRangeObject().Milliseconds()))
+	m.interRequestDuration.WithLabelValues(node.Address(), methodCreateSession).Set(float64(node.InterAverageCreateSession().Milliseconds()))
 }
--- a/metrics/treepool.go
+++ b/metrics/treepool.go
@ -0,0 +1,62 @@
+package metrics
+
+import (
+	"github.com/prometheus/client_golang/prometheus"
+)
+
+const (
+	treePoolSubsystem = "tree_pool"
+
+	methodGetNodes      = "get_nodes"
+	methodGetSubTree    = "get_sub_tree"
+	methodAddNode       = "add_node"
+	methodAddNodeByPath = "add_node_by_path"
+	methodMoveNode      = "move_node"
+	methodRemoveNode    = "remove_node"
+)
+
+type treePoolMetricsCollector struct {
+	statScraper          TreePoolStatistic
+	requestDuration      *prometheus.GaugeVec
+	interRequestDuration *prometheus.GaugeVec
+}
+
+func newTreePoolMetricsCollector(stat TreePoolStatistic) *treePoolMetricsCollector {
+	return &treePoolMetricsCollector{
+		statScraper:          stat,
+		requestDuration:      mustNewGaugeVec(appMetricsDesc[treePoolSubsystem][avgRequestDurationMetric]),
+		interRequestDuration: mustNewGaugeVec(appMetricsDesc[treePoolSubsystem][interAvgRequestDurationMetric]),
+	}
+}
+
+func (m *treePoolMetricsCollector) Collect(ch chan<- prometheus.Metric) {
+	m.updateStatistic()
+	m.requestDuration.Collect(ch)
+	m.interRequestDuration.Collect(ch)
+}
+
+func (m *treePoolMetricsCollector) Describe(descs chan<- *prometheus.Desc) {
+	m.requestDuration.Describe(descs)
+	m.interRequestDuration.Describe(descs)
+}
+
+func (m *treePoolMetricsCollector) updateStatistic() {
+	stat := m.statScraper.Statistic()
+
+	m.requestDuration.Reset()
+	m.interRequestDuration.Reset()
+
+	m.requestDuration.WithLabelValues(methodGetNodes).Set(float64(stat.AverageGetNodes().Milliseconds()))
+	m.requestDuration.WithLabelValues(methodGetSubTree).Set(float64(stat.AverageGetSubTree().Milliseconds()))
+	m.requestDuration.WithLabelValues(methodAddNode).Set(float64(stat.AverageAddNode().Milliseconds()))
+	m.requestDuration.WithLabelValues(methodAddNodeByPath).Set(float64(stat.AverageAddNodeByPath().Milliseconds()))
+	m.requestDuration.WithLabelValues(methodMoveNode).Set(float64(stat.AverageMoveNode().Milliseconds()))
+	m.requestDuration.WithLabelValues(methodRemoveNode).Set(float64(stat.AverageRemoveNode().Milliseconds()))
+
+	m.interRequestDuration.WithLabelValues(methodGetNodes).Set(float64(stat.InterAverageGetNodes().Milliseconds()))
+	m.interRequestDuration.WithLabelValues(methodGetSubTree).Set(float64(stat.InterAverageGetSubTree().Milliseconds()))
+	m.interRequestDuration.WithLabelValues(methodAddNode).Set(float64(stat.InterAverageAddNode().Milliseconds()))
+	m.interRequestDuration.WithLabelValues(methodAddNodeByPath).Set(float64(stat.InterAverageAddNodeByPath().Milliseconds()))
+	m.interRequestDuration.WithLabelValues(methodMoveNode).Set(float64(stat.InterAverageMoveNode().Milliseconds()))
+	m.interRequestDuration.WithLabelValues(methodRemoveNode).Set(float64(stat.InterAverageRemoveNode().Milliseconds()))
+}
--- a/pkg/service/tree/tree.go
+++ b/pkg/service/tree/tree.go
@ -15,7 +15,6 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/layer"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/middleware"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/internal/logs"
-	cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
 	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/user"
 	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
@ -90,7 +89,6 @@ const (
 	ownerKeyKV          = "ownerKey"
 	lockConfigurationKV = "LockConfiguration"
 	oidKV               = "OID"
-	cidKV               = "CID"

 	isCombinedKV    = "IsCombined"
 	isUnversionedKV = "IsUnversioned"
@ -498,16 +496,16 @@ func (c *Tree) PutSettingsNode(ctx context.Context, bktInfo *data.BucketInfo, se
 	return nil
 }

-func (c *Tree) GetBucketCORS(ctx context.Context, bktInfo *data.BucketInfo) (oid.Address, error) {
+func (c *Tree) GetBucketCORS(ctx context.Context, bktInfo *data.BucketInfo) (oid.ID, error) {
 	node, err := c.getSystemNode(ctx, bktInfo, corsFilename)
 	if err != nil {
-		return oid.Address{}, err
+		return oid.ID{}, err
 	}

-	return getTreeNodeAddress(node.Latest())
+	return node.Latest().ObjID, nil
 }

-func (c *Tree) PutBucketCORS(ctx context.Context, bktInfo *data.BucketInfo, addr oid.Address) ([]oid.Address, error) {
+func (c *Tree) PutBucketCORS(ctx context.Context, bktInfo *data.BucketInfo, objID oid.ID) ([]oid.ID, error) {
 	multiNode, err := c.getSystemNode(ctx, bktInfo, corsFilename)
 	isErrNotFound := errors.Is(err, layer.ErrNodeNotFound)
 	if err != nil && !isErrNotFound {
@ -516,8 +514,7 @@ func (c *Tree) PutBucketCORS(ctx context.Context, bktInfo *data.BucketInfo, addr

 	meta := make(map[string]string)
 	meta[FileNameKey] = corsFilename
-	meta[oidKV] = addr.Object().EncodeToString()
-	meta[cidKV] = addr.Container().EncodeToString()
+	meta[oidKV] = objID.EncodeToString()

 	if isErrNotFound {
 		if _, err = c.service.AddNode(ctx, bktInfo, systemTree, 0, meta); err != nil {
@ -536,18 +533,15 @@ func (c *Tree) PutBucketCORS(ctx context.Context, bktInfo *data.BucketInfo, addr
 		return nil, fmt.Errorf("move cors node: %w", err)
 	}

-	objToDelete := make([]oid.Address, 1, len(multiNode.nodes))
-	objToDelete[0], err = getTreeNodeAddress(latest)
-	if err != nil {
-		return nil, fmt.Errorf("parse object addr of latest cors node in tree: %w", err)
-	}
+	objToDelete := make([]oid.ID, 1, len(multiNode.nodes))
+	objToDelete[0] = latest.ObjID

 	objToDelete = append(objToDelete, c.cleanOldNodes(ctx, multiNode.Old(), bktInfo)...)

 	return objToDelete, nil
 }

-func (c *Tree) DeleteBucketCORS(ctx context.Context, bktInfo *data.BucketInfo) ([]oid.Address, error) {
+func (c *Tree) DeleteBucketCORS(ctx context.Context, bktInfo *data.BucketInfo) ([]oid.ID, error) {
 	multiNode, err := c.getSystemNode(ctx, bktInfo, corsFilename)
 	isErrNotFound := errors.Is(err, layer.ErrNodeNotFound)
 	if err != nil && !isErrNotFound {
@ -566,23 +560,8 @@ func (c *Tree) DeleteBucketCORS(ctx context.Context, bktInfo *data.BucketInfo) (
 	return objToDelete, nil
 }

-func getTreeNodeAddress(node *treeNode) (oid.Address, error) {
-	var addr oid.Address
-	addr.SetObject(node.ObjID)
-
-	if cidStr, ok := node.Get(cidKV); ok {
-		var cnrID cid.ID
-		if err := cnrID.DecodeString(cidStr); err != nil {
-			return oid.Address{}, fmt.Errorf("couldn't decode cid: %w", err)
-		}
-		addr.SetContainer(cnrID)
-	}
-
-	return addr, nil
-}
-
-func (c *Tree) cleanOldNodes(ctx context.Context, nodes []*treeNode, bktInfo *data.BucketInfo) []oid.Address {
-	res := make([]oid.Address, 0, len(nodes))
+func (c *Tree) cleanOldNodes(ctx context.Context, nodes []*treeNode, bktInfo *data.BucketInfo) []oid.ID {
+	res := make([]oid.ID, 0, len(nodes))

 	for _, node := range nodes {
 		ind := node.GetLatestNodeIndex()
@ -592,12 +571,7 @@ func (c *Tree) cleanOldNodes(ctx context.Context, nodes []*treeNode, bktInfo *da
 		if err := c.service.RemoveNode(ctx, bktInfo, systemTree, node.ID[ind]); err != nil {
 			c.reqLogger(ctx).Warn(logs.FailedToRemoveOldSystemNode, zap.String("FileName", node.Meta[FileNameKey]), zap.Uint64("id", node.ID[ind]))
 		} else {
-			addr, err := getTreeNodeAddress(node)
-			if err != nil {
-				c.log.Warn(logs.FailedToParseAddressInTreeNode, zap.String("FileName", node.Meta[FileNameKey]), zap.Uint64("id", node.ID[ind]))
-				continue
-			}
-			res = append(res, addr)
+			res = append(res, node.ObjID)
 		}
 	}
Author	SHA1	Message	Date
Marina Biryukova	b1d273c63c	Update sdk Signed-off-by: Marina Biryukova <m.biryukova@yadro.com>	2024-07-31 16:33:35 +03:00
Alex Vanin	02cfd46648	Add go traces regions and tasks Signed-off-by: Alex Vanin <a.vanin@yadro.com>	2024-07-31 15:08:46 +03:00
Marina Biryukova	c64871ff6c	Add intermediate metrics Signed-off-by: Marina Biryukova <m.biryukova@yadro.com>	2024-07-31 14:57:06 +03:00
Alex Vanin	3bbc8cce39	Release v0.30.1 Signed-off-by: Alex Vanin <a.vanin@yadro.com>	2024-07-25 14:31:33 +03:00
Marina Biryukova	2fefed842d	[#439 ] Update SDK version New SDK version supports extended log records in pool component during inner nodes health check. Signed-off-by: Marina Biryukova <m.biryukova@yadro.com> (cherry picked from commit `c506620199`)	2024-07-24 16:38:48 +03:00
Denis Kirillov	2bae704d3e	[#437 ] tree: Add cleanOldNodes method Signed-off-by: Denis Kirillov <d.kirillov@yadro.com>	2024-07-23 16:47:05 +03:00
Denis Kirillov	689f7ee818	[#437 ] tree: Support removing old split system nodes It's need to fit user expectation on deleting CORs for example. Previously after removing cors (that was uploaded in split manner) we can still get some data (from other node) because deletion worked only for latest node version. Signed-off-by: Denis Kirillov <d.kirillov@yadro.com>	2024-07-22 10:42:11 +03:00