go.mod

@@ -3,7 +3,7 @@ module git.frostfs.info/TrueCloudLab/frostfs-http-gw
 go 1.22
 
 require (
-	git.frostfs.info/TrueCloudLab/frostfs-observability v0.0.0-20241112082307-f17779933e88
+	git.frostfs.info/TrueCloudLab/frostfs-observability v0.0.0-20241125133852-37bd75821121
 	git.frostfs.info/TrueCloudLab/frostfs-sdk-go v0.0.0-20250130095343-593dd77d841a
 	git.frostfs.info/TrueCloudLab/multinet v0.0.0-20241015075604-6cb0d80e0972
 	git.frostfs.info/TrueCloudLab/zapjournald v0.0.0-20240124114243-cb2e66427d02

go.sum

@@ -42,10 +42,10 @@ git.frostfs.info/TrueCloudLab/frostfs-contract v0.19.3-0.20240621131249-49e5270f
 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 v0.0.0-20241112082307-f17779933e88 h1:9bvBDLApbbO5sXBKdODpE9tzy3HV99nXxkDWNn22rdI=
-git.frostfs.info/TrueCloudLab/frostfs-observability v0.0.0-20241112082307-f17779933e88/go.mod h1:kbwB4v2o6RyOfCo9kEFeUDZIX3LKhmS0yXPrtvzkQ1g=
 git.frostfs.info/TrueCloudLab/frostfs-sdk-go v0.0.0-20250130095343-593dd77d841a h1:Ud+3zz4WP9HPxEQxDPJZPpiPdm30nDNSKucsWP9L54M=
 git.frostfs.info/TrueCloudLab/frostfs-sdk-go v0.0.0-20250130095343-593dd77d841a/go.mod h1:aQpPWfG8oyfJ2X+FenPTJpSRWZjwcP5/RAtkW+/VEX8=
+git.frostfs.info/TrueCloudLab/frostfs-observability v0.0.0-20241125133852-37bd75821121 h1:/Z8DfbLZXp7exUQWUKoG/9tbFdI9d5lV1qSReaYoG8I=
+git.frostfs.info/TrueCloudLab/frostfs-observability v0.0.0-20241125133852-37bd75821121/go.mod h1:kbwB4v2o6RyOfCo9kEFeUDZIX3LKhmS0yXPrtvzkQ1g=
 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/multinet v0.0.0-20241015075604-6cb0d80e0972 h1:/960fWeyn2AFHwQUwDsWB3sbP6lTEnFnMzLMM6tx6N8=

internal/handler/download.go

@@ -16,6 +16,7 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/layer"
 	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/logs"
 	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/utils"
+	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	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"
@@ -25,11 +26,14 @@ import (
 
 // DownloadByAddressOrBucketName handles download requests using simple cid/oid or bucketname/key format.
 func (h *Handler) DownloadByAddressOrBucketName(c *fasthttp.RequestCtx) {
+	ctx, span := tracing.StartSpanFromContext(utils.GetContextFromRequest(c), "handler.DownloadByAddressOrBucketName")
+	defer span.End()
+	utils.SetContextToRequest(ctx, c)
+
 	cidParam := c.UserValue("cid").(string)
 	oidParam := c.UserValue("oid").(string)
 	downloadParam := c.QueryArgs().GetBool("download")
 
-	ctx := utils.GetContextFromRequest(c)
 	log := utils.GetReqLogOrDefault(ctx, h.log).With(
 		zap.String("cid", cidParam),
 		zap.String("oid", oidParam),
@@ -67,6 +71,10 @@ func shouldDownload(oidParam string, downloadParam bool) bool {
 
 // DownloadByAttribute handles attribute-based download requests.
 func (h *Handler) DownloadByAttribute(c *fasthttp.RequestCtx) {
+	ctx, span := tracing.StartSpanFromContext(utils.GetContextFromRequest(c), "handler.DownloadByAttribute")
+	defer span.End()
+	utils.SetContextToRequest(ctx, c)
+
 	h.byAttribute(c, h.receiveFile)
 }
 
@@ -88,9 +96,12 @@ func (h *Handler) search(ctx context.Context, cnrID cid.ID, key, val string, op
 
 // DownloadZip handles zip by prefix requests.
 func (h *Handler) DownloadZip(c *fasthttp.RequestCtx) {
+	ctx, span := tracing.StartSpanFromContext(utils.GetContextFromRequest(c), "handler.DownloadZip")
+	defer span.End()
+	utils.SetContextToRequest(ctx, c)
+
 	scid, _ := c.UserValue("cid").(string)
 
-	ctx := utils.GetContextFromRequest(c)
 	log := utils.GetReqLogOrDefault(ctx, h.log)
 	bktInfo, err := h.getBucketInfo(ctx, scid, log)
 	if err != nil {
@@ -154,9 +165,12 @@ func (h *Handler) createZipFile(zw *zip.Writer, obj *object.Object) (io.Writer,
 
 // DownloadTar forms tar.gz from objects by prefix.
 func (h *Handler) DownloadTar(c *fasthttp.RequestCtx) {
+	ctx, span := tracing.StartSpanFromContext(utils.GetContextFromRequest(c), "handler.DownloadTar")
+	defer span.End()
+	utils.SetContextToRequest(ctx, c)
+
 	scid, _ := c.UserValue("cid").(string)
 
-	ctx := utils.GetContextFromRequest(c)
 	log := utils.GetReqLogOrDefault(ctx, h.log)
 	bktInfo, err := h.getBucketInfo(ctx, scid, log)
 	if err != nil {

internal/handler/handler.go

@@ -14,6 +14,7 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/layer"
 	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/logs"
 	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/utils"
+	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/bearer"
 	apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container"
@@ -195,6 +196,9 @@ func New(params *AppParams, config Config, tree layer.TreeService, workerPool *a
 // byNativeAddress is a wrapper for function (e.g. request.headObject, request.receiveFile) that
 // prepares request and object address to it.
 func (h *Handler) byNativeAddress(ctx context.Context, req request, cnrID cid.ID, objID oid.ID, handler func(context.Context, request, oid.Address)) {
+	ctx, span := tracing.StartSpanFromContext(ctx, "handler.byNativeAddress")
+	defer span.End()
+
 	addr := newAddress(cnrID, objID)
 	handler(ctx, req, addr)
 }
@@ -202,6 +206,9 @@ func (h *Handler) byNativeAddress(ctx context.Context, req request, cnrID cid.ID
 // byS3Path is a wrapper for function (e.g. request.headObject, request.receiveFile) that
 // resolves object address from S3-like path <bucket name>/<object key>.
 func (h *Handler) byS3Path(ctx context.Context, req request, cnrID cid.ID, path string, handler func(context.Context, request, oid.Address)) {
+	ctx, span := tracing.StartSpanFromContext(ctx, "handler.byS3Path")
+	defer span.End()
+
 	c, log := req.RequestCtx, req.log
 
 	foundOID, err := h.tree.GetLatestVersion(ctx, &cnrID, path)
@@ -382,6 +389,10 @@ func (h *Handler) readContainer(ctx context.Context, cnrID cid.ID) (*data.Bucket
 }
 
 func (h *Handler) browseIndex(c *fasthttp.RequestCtx, isNativeList bool) {
+	ctx, span := tracing.StartSpanFromContext(utils.GetContextFromRequest(c), "handler.browseIndex")
+	defer span.End()
+	utils.SetContextToRequest(ctx, c)
+
 	if !h.config.IndexPageEnabled() {
 		c.SetStatusCode(fasthttp.StatusNotFound)
 		return
@@ -390,7 +401,6 @@ func (h *Handler) browseIndex(c *fasthttp.RequestCtx, isNativeList bool) {
 	cidURLParam := c.UserValue("cid").(string)
 	oidURLParam := c.UserValue("oid").(string)
 
-	ctx := utils.GetContextFromRequest(c)
 	reqLog := utils.GetReqLogOrDefault(ctx, h.log)
 	log := reqLog.With(zap.String("cid", cidURLParam), zap.String("oid", oidURLParam))
 

internal/handler/head.go

@@ -11,6 +11,7 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/layer"
 	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/logs"
 	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/utils"
+	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
 	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
 	"github.com/valyala/fasthttp"
@@ -116,10 +117,12 @@ func idsToResponse(resp *fasthttp.Response, obj *object.Object) {
 
 // HeadByAddressOrBucketName handles head requests using simple cid/oid or bucketname/key format.
 func (h *Handler) HeadByAddressOrBucketName(c *fasthttp.RequestCtx) {
+	ctx, span := tracing.StartSpanFromContext(utils.GetContextFromRequest(c), "handler.HeadByAddressOrBucketName")
+	defer span.End()
+
 	cidParam, _ := c.UserValue("cid").(string)
 	oidParam, _ := c.UserValue("oid").(string)
 
-	ctx := utils.GetContextFromRequest(c)
 	log := utils.GetReqLogOrDefault(ctx, h.log).With(
 		zap.String("cid", cidParam),
 		zap.String("oid", oidParam),
@@ -152,5 +155,9 @@ func (h *Handler) HeadByAddressOrBucketName(c *fasthttp.RequestCtx) {
 
 // HeadByAttribute handles attribute-based head requests.
 func (h *Handler) HeadByAttribute(c *fasthttp.RequestCtx) {
+	ctx, span := tracing.StartSpanFromContext(utils.GetContextFromRequest(c), "handler.HeadByAttribute")
+	defer span.End()
+	utils.SetContextToRequest(ctx, c)
+
 	h.byAttribute(c, h.headObject)
 }

internal/handler/upload.go

@@ -17,6 +17,7 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/logs"
 	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/tokens"
 	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/utils"
+	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/bearer"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
 	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
@@ -50,13 +51,16 @@ func (pr *putResponse) encode(w io.Writer) error {
 
 // Upload handles multipart upload request.
 func (h *Handler) Upload(c *fasthttp.RequestCtx) {
+	ctx, span := tracing.StartSpanFromContext(utils.GetContextFromRequest(c), "handler.Upload")
+	defer span.End()
+	utils.SetContextToRequest(ctx, c)
+
 	var file MultipartFile
 
 	scid, _ := c.UserValue("cid").(string)
 	bodyStream := c.RequestBodyStream()
 	drainBuf := make([]byte, drainBufSize)
 
-	ctx := utils.GetContextFromRequest(c)
 	reqLog := utils.GetReqLogOrDefault(ctx, h.log)
 	log := reqLog.With(zap.String("cid", scid))
 
@@ -102,6 +106,11 @@ func (h *Handler) Upload(c *fasthttp.RequestCtx) {
 
 func (h *Handler) uploadSingleObject(req request, bkt *data.BucketInfo, file MultipartFile, filtered map[string]string) {
 	c, log := req.RequestCtx, req.log
+
+	ctx, span := tracing.StartSpanFromContext(utils.GetContextFromRequest(c), "handler.uploadSingleObject")
+	defer span.End()
+	utils.SetContextToRequest(ctx, c)
+
 	setIfNotExist(filtered, object.AttributeFileName, file.FileName())
 
 	attributes, err := h.extractAttributes(c, log, filtered)
@@ -160,6 +169,7 @@ func (h *Handler) uploadObject(c *fasthttp.RequestCtx, bkt *data.BucketInfo, att
 }
 
 func (h *Handler) extractAttributes(c *fasthttp.RequestCtx, log *zap.Logger, filtered map[string]string) ([]object.Attribute, error) {
+	ctx := utils.GetContextFromRequest(c)
 	now := time.Now()
 	if rawHeader := c.Request.Header.Peek(fasthttp.HeaderDate); rawHeader != nil {
 		if parsed, err := time.Parse(http.TimeFormat, string(rawHeader)); err != nil {
@@ -169,7 +179,7 @@ func (h *Handler) extractAttributes(c *fasthttp.RequestCtx, log *zap.Logger, fil
 			now = parsed
 		}
 	}
-	if err := utils.PrepareExpirationHeader(c, h.frostfs, filtered, now); err != nil {
+	if err := utils.PrepareExpirationHeader(ctx, h.frostfs, filtered, now); err != nil {
 		log.Error(logs.CouldNotPrepareExpirationHeader, zap.Error(err), logs.TagField(logs.TagDatapath))
 		return nil, err
 	}
@@ -200,6 +210,10 @@ func newAttribute(key string, val string) object.Attribute {
 func (h *Handler) explodeArchive(req request, bkt *data.BucketInfo, file io.ReadCloser, filtered map[string]string) {
 	c, log := req.RequestCtx, req.log
 
+	ctx, span := tracing.StartSpanFromContext(utils.GetContextFromRequest(c), "handler.explodeArchive")
+	defer span.End()
+	utils.SetContextToRequest(ctx, c)
+
 	// remove user attributes which vary for each file in archive
 	// to guarantee that they won't appear twice
 	delete(filtered, object.AttributeFileName)

internal/service/frostfs/frostfs.go

@@ -9,6 +9,7 @@ import (
 
 	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/handler"
 	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/utils"
+	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/netmap"
@@ -35,6 +36,9 @@ func NewFrostFS(p *pool.Pool) *FrostFS {
 
 // Container implements frostfs.FrostFS interface method.
 func (x *FrostFS) Container(ctx context.Context, containerPrm handler.PrmContainer) (*container.Container, error) {
+	ctx, span := tracing.StartSpanFromContext(ctx, "frostfs.Container")
+	defer span.End()
+
 	prm := pool.PrmContainerGet{
 		ContainerID: containerPrm.ContainerID,
 	}
@@ -49,6 +53,9 @@ func (x *FrostFS) Container(ctx context.Context, containerPrm handler.PrmContain
 
 // CreateObject implements frostfs.FrostFS interface method.
 func (x *FrostFS) CreateObject(ctx context.Context, prm handler.PrmObjectCreate) (oid.ID, error) {
+	ctx, span := tracing.StartSpanFromContext(ctx, "frostfs.CreateObject")
+	defer span.End()
+
 	var prmPut pool.PrmObjectPut
 	prmPut.SetHeader(*prm.Object)
 	prmPut.SetPayload(prm.Payload)
@@ -83,6 +90,9 @@ func (x payloadReader) Read(p []byte) (int, error) {
 
 // HeadObject implements frostfs.FrostFS interface method.
 func (x *FrostFS) HeadObject(ctx context.Context, prm handler.PrmObjectHead) (*object.Object, error) {
+	ctx, span := tracing.StartSpanFromContext(ctx, "frostfs.HeadObject")
+	defer span.End()
+
 	var prmHead pool.PrmObjectHead
 	prmHead.SetAddress(prm.Address)
 
@@ -100,6 +110,9 @@ func (x *FrostFS) HeadObject(ctx context.Context, prm handler.PrmObjectHead) (*o
 
 // GetObject implements frostfs.FrostFS interface method.
 func (x *FrostFS) GetObject(ctx context.Context, prm handler.PrmObjectGet) (*handler.Object, error) {
+	ctx, span := tracing.StartSpanFromContext(ctx, "frostfs.GetObject")
+	defer span.End()
+
 	var prmGet pool.PrmObjectGet
 	prmGet.SetAddress(prm.Address)
 
@@ -120,6 +133,9 @@ func (x *FrostFS) GetObject(ctx context.Context, prm handler.PrmObjectGet) (*han
 
 // RangeObject implements frostfs.FrostFS interface method.
 func (x *FrostFS) RangeObject(ctx context.Context, prm handler.PrmObjectRange) (io.ReadCloser, error) {
+	ctx, span := tracing.StartSpanFromContext(ctx, "frostfs.RangeObject")
+	defer span.End()
+
 	var prmRange pool.PrmObjectRange
 	prmRange.SetAddress(prm.Address)
 	prmRange.SetOffset(prm.PayloadRange[0])
@@ -139,6 +155,9 @@ func (x *FrostFS) RangeObject(ctx context.Context, prm handler.PrmObjectRange) (
 
 // SearchObjects implements frostfs.FrostFS interface method.
 func (x *FrostFS) SearchObjects(ctx context.Context, prm handler.PrmObjectSearch) (handler.ResObjectSearch, error) {
+	ctx, span := tracing.StartSpanFromContext(ctx, "frostfs.SearchObjects")
+	defer span.End()
+
 	var prmSearch pool.PrmObjectSearch
 	prmSearch.SetContainerID(prm.Container)
 	prmSearch.SetFilters(prm.Filters)
@@ -157,6 +176,9 @@ func (x *FrostFS) SearchObjects(ctx context.Context, prm handler.PrmObjectSearch
 
 // GetEpochDurations implements frostfs.FrostFS interface method.
 func (x *FrostFS) GetEpochDurations(ctx context.Context) (*utils.EpochDurations, error) {
+	ctx, span := tracing.StartSpanFromContext(ctx, "frostfs.GetEpochDurations")
+	defer span.End()
+
 	networkInfo, err := x.pool.NetworkInfo(ctx)
 	if err != nil {
 		return nil, err
@@ -175,6 +197,9 @@ func (x *FrostFS) GetEpochDurations(ctx context.Context) (*utils.EpochDurations,
 }
 
 func (x *FrostFS) NetmapSnapshot(ctx context.Context) (netmap.NetMap, error) {
+	ctx, span := tracing.StartSpanFromContext(ctx, "frostfs.NetmapSnapshot")
+	defer span.End()
+
 	netmapSnapshot, err := x.pool.NetMapSnapshot(ctx)
 	if err != nil {
 		return netmapSnapshot, handleObjectError("get netmap via connection pool", err)
@@ -196,6 +221,9 @@ func NewResolverFrostFS(p *pool.Pool) *ResolverFrostFS {
 
 // SystemDNS implements resolver.FrostFS interface method.
 func (x *ResolverFrostFS) SystemDNS(ctx context.Context) (string, error) {
+	ctx, span := tracing.StartSpanFromContext(ctx, "frostfs.SystemDNS")
+	defer span.End()
+
 	networkInfo, err := x.pool.NetworkInfo(ctx)
 	if err != nil {
 		return "", handleObjectError("read network info via client", err)

internal/service/frostfs/multi_object_reader.go

@@ -9,6 +9,7 @@ import (
 	"time"
 
 	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/handler"
+	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
 )
 
@@ -74,6 +75,9 @@ var (
 )
 
 func (x *FrostFS) InitMultiObjectReader(ctx context.Context, p handler.PrmInitMultiObjectReader) (io.Reader, error) {
+	ctx, span := tracing.StartSpanFromContext(ctx, "frostfs.InitMultiObjectReader")
+	defer span.End()
+
 	combinedObj, err := x.GetObject(ctx, handler.PrmObjectGet{
 		PrmAuth: handler.PrmAuth{BearerToken: p.Bearer},
 		Address: p.Addr,
@@ -215,6 +219,9 @@ func (x *MultiObjectReader) Read(p []byte) (n int, err error) {
 // InitFrostFSObjectPayloadReader initializes payload reader of the FrostFS object.
 // Zero range corresponds to full payload (panics if only offset is set).
 func (x *FrostFS) InitFrostFSObjectPayloadReader(ctx context.Context, p GetFrostFSParams) (io.ReadCloser, error) {
+	ctx, span := tracing.StartSpanFromContext(ctx, "frostfs.InitFrostFSObjectPayloadReader")
+	defer span.End()
+
 	var prmAuth handler.PrmAuth
 
 	if p.Off+p.Ln != 0 {

internal/service/frostfs/tree_pool_wrapper.go

@@ -9,6 +9,7 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/data"
 	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/tokens"
 	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/tree"
+	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	apitree "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/api/tree"
 	treepool "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/pool/tree"
 )
@@ -46,6 +47,9 @@ func NewPoolWrapper(p *treepool.Pool) *PoolWrapper {
 }
 
 func (w *PoolWrapper) GetNodes(ctx context.Context, prm *tree.GetNodesParams) ([]tree.NodeResponse, error) {
+	ctx, span := tracing.StartSpanFromContext(ctx, "frostfs.GetNodes")
+	defer span.End()
+
 	poolPrm := treepool.GetNodesParams{
 		CID:           prm.CnrID,
 		TreeID:        prm.TreeID,
@@ -93,6 +97,9 @@ func handleError(err error) error {
 }
 
 func (w *PoolWrapper) GetSubTree(ctx context.Context, bktInfo *data.BucketInfo, treeID string, rootID []uint64, depth uint32, sort bool) ([]tree.NodeResponse, error) {
+	ctx, span := tracing.StartSpanFromContext(ctx, "frostfs.GetSubTree")
+	defer span.End()
+
 	order := treepool.NoneOrder
 	if sort {
 		order = treepool.AscendingOrder

tree/tree.go

@@ -8,6 +8,7 @@ import (
 
 	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/data"
 	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/layer"
+	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
 	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
 )
@@ -190,6 +191,9 @@ func (m *multiSystemNode) Old() []*treeNode {
 }
 
 func (c *Tree) GetLatestVersion(ctx context.Context, cnrID *cid.ID, objectName string) (*data.NodeVersion, error) {
+	ctx, span := tracing.StartSpanFromContext(ctx, "tree.GetLatestVersion")
+	defer span.End()
+
 	nodes, err := c.GetVersions(ctx, cnrID, objectName)
 	if err != nil {
 		return nil, err
@@ -204,6 +208,9 @@ func (c *Tree) GetLatestVersion(ctx context.Context, cnrID *cid.ID, objectName s
 }
 
 func (c *Tree) GetVersions(ctx context.Context, cnrID *cid.ID, objectName string) ([]NodeResponse, error) {
+	ctx, span := tracing.StartSpanFromContext(ctx, "tree.GetVersions")
+	defer span.End()
+
 	meta := []string{oidKV, isDeleteMarkerKV, sizeKV}
 	path := pathFromName(objectName)
 
@@ -220,6 +227,9 @@ func (c *Tree) GetVersions(ctx context.Context, cnrID *cid.ID, objectName string
 }
 
 func (c *Tree) CheckSettingsNodeExists(ctx context.Context, bktInfo *data.BucketInfo) error {
+	ctx, span := tracing.StartSpanFromContext(ctx, "tree.CheckSettingsNodeExists")
+	defer span.End()
+
 	_, err := c.getSystemNode(ctx, bktInfo, settingsFileName)
 	if err != nil {
 		return err
@@ -308,6 +318,9 @@ func pathFromName(objectName string) []string {
 }
 
 func (c *Tree) GetSubTreeByPrefix(ctx context.Context, bktInfo *data.BucketInfo, prefix string, latestOnly bool) ([]data.NodeInfo, string, error) {
+	ctx, span := tracing.StartSpanFromContext(ctx, "tree.GetSubTreeByPrefix")
+	defer span.End()
+
 	rootID, tailPrefix, err := c.determinePrefixNode(ctx, bktInfo, versionTree, prefix)
 	if err != nil {
 		return nil, "", err