object: Stop supporting __NEOFS__NETMAP* X-headers

They are not supported since
nspcc-dev/neofs-api#279. Now storage nodes
process the current epoch only.

Refs #1194.

Signed-off-by: Leonard Lyubich <leonard@morphbits.io>

CHANGELOG.md

@@ -12,10 +12,13 @@ Changelog for NeoFS Node
 ### Changed
 
 ### Removed
+- Supporting of `__NEOFS__NETMAP*` X-headers (#2751)
 
 ### Updated
 
 ### Updating from v0.40.1
+Stop attaching `__NEOFS__NETMAP*` X-headers to NeoFS API requests. If your app
+is somehow tied to them, do not update and create an issue please.
 
 ## [0.40.1] - 2024-02-22
 

pkg/services/object/get/container.go

@@ -13,41 +13,26 @@ func (exec *execCtx) executeOnContainer() {
 		return
 	}
 
-	lookupDepth := exec.netmapLookupDepth()
-
-	exec.log.Debug("trying to execute in container...",
-		zap.Uint64("netmap lookup depth", lookupDepth),
-	)
+	exec.log.Debug("trying to execute in container...")
 
 	// initialize epoch number
-	ok := exec.initEpoch()
-	if !ok {
+	epoch, err := exec.svc.currentEpochReceiver.currentEpoch()
+	if err != nil {
+		exec.status = statusUndefined
+		exec.err = err
+		exec.log.Debug("could not get current epoch number", zap.Error(err))
 		return
 	}
 
-	for {
-		if exec.processCurrentEpoch() {
-			break
-		}
-
-		// check the maximum depth has been reached
-		if lookupDepth == 0 {
-			break
-		}
-
-		lookupDepth--
-
-		// go to the previous epoch
-		exec.curProcEpoch--
-	}
+	exec.processEpoch(epoch)
 }
 
-func (exec *execCtx) processCurrentEpoch() bool {
+func (exec *execCtx) processEpoch(epoch uint64) bool {
 	exec.log.Debug("process epoch",
-		zap.Uint64("number", exec.curProcEpoch),
+		zap.Uint64("number", epoch),
 	)
 
-	traverser, ok := exec.generateTraverser(exec.address())
+	traverser, ok := exec.generateTraverser(exec.address(), epoch)
 	if !ok {
 		return true
 	}

pkg/services/object/get/exec.go

@@ -39,8 +39,6 @@ type execCtx struct {
 	curOff uint64
 
 	head bool
-
-	curProcEpoch uint64
 }
 
 type execOption func(*execCtx)
@@ -153,42 +151,10 @@ func (exec *execCtx) headOnly() bool {
 	return exec.head
 }
 
-func (exec *execCtx) netmapEpoch() uint64 {
-	return exec.prm.common.NetmapEpoch()
-}
-
-func (exec *execCtx) netmapLookupDepth() uint64 {
-	return exec.prm.common.NetmapLookupDepth()
-}
-
-func (exec *execCtx) initEpoch() bool {
-	exec.curProcEpoch = exec.netmapEpoch()
-	if exec.curProcEpoch > 0 {
-		return true
-	}
-
-	e, err := exec.svc.currentEpochReceiver.currentEpoch()
-
-	switch {
-	default:
-		exec.status = statusUndefined
-		exec.err = err
-
-		exec.log.Debug("could not get current epoch number",
-			zap.String("error", err.Error()),
-		)
-
-		return false
-	case err == nil:
-		exec.curProcEpoch = e
-		return true
-	}
-}
-
-func (exec *execCtx) generateTraverser(addr oid.Address) (*placement.Traverser, bool) {
+func (exec *execCtx) generateTraverser(addr oid.Address, epoch uint64) (*placement.Traverser, bool) {
 	obj := addr.Object()
 
-	t, err := exec.svc.traverserGenerator.GenerateTraverser(addr.Container(), &obj, exec.curProcEpoch)
+	t, err := exec.svc.traverserGenerator.GenerateTraverser(addr.Container(), &obj, epoch)
 
 	switch {
 	default:

pkg/services/object/get/get_test.go

@@ -1117,130 +1117,3 @@ func TestGetRemoteSmall(t *testing.T) {
 		})
 	})
 }
-
-func TestGetFromPastEpoch(t *testing.T) {
-	ctx := context.Background()
-
-	var cnr container.Container
-	cnr.SetPlacementPolicy(netmaptest.PlacementPolicy())
-
-	var idCnr cid.ID
-	cnr.CalculateID(&idCnr)
-
-	addr := oidtest.Address()
-	addr.SetContainer(idCnr)
-
-	payloadSz := uint64(10)
-	payload := make([]byte, payloadSz)
-	_, _ = rand.Read(payload)
-
-	obj := generateObject(addr, nil, payload)
-
-	ns, as := testNodeMatrix(t, []int{2, 2})
-
-	c11 := newTestClient()
-	c11.addResult(addr, nil, errors.New("any error"))
-
-	c12 := newTestClient()
-	c12.addResult(addr, nil, errors.New("any error"))
-
-	c21 := newTestClient()
-	c21.addResult(addr, nil, errors.New("any error"))
-
-	c22 := newTestClient()
-	c22.addResult(addr, obj, nil)
-
-	svc := &Service{cfg: new(cfg)}
-	svc.log = test.NewLogger(false)
-	svc.localStorage = newTestStorage()
-	svc.assembly = true
-
-	const curEpoch = 13
-
-	svc.traverserGenerator = &testTraverserGenerator{
-		c: cnr,
-		b: map[uint64]placement.Builder{
-			curEpoch: &testPlacementBuilder{
-				vectors: map[string][][]netmap.NodeInfo{
-					addr.EncodeToString(): ns[:1],
-				},
-			},
-			curEpoch - 1: &testPlacementBuilder{
-				vectors: map[string][][]netmap.NodeInfo{
-					addr.EncodeToString(): ns[1:],
-				},
-			},
-		},
-	}
-
-	svc.clientCache = &testClientCache{
-		clients: map[string]*testClient{
-			as[0][0]: c11,
-			as[0][1]: c12,
-			as[1][0]: c21,
-			as[1][1]: c22,
-		},
-	}
-
-	svc.currentEpochReceiver = testEpochReceiver(curEpoch)
-
-	w := NewSimpleObjectWriter()
-
-	commonPrm := new(util.CommonPrm)
-
-	p := Prm{}
-	p.SetObjectWriter(w)
-	p.SetCommonParameters(commonPrm)
-	p.WithAddress(addr)
-
-	err := svc.Get(ctx, p)
-	require.ErrorAs(t, err, new(apistatus.ObjectNotFound))
-
-	commonPrm.SetNetmapLookupDepth(1)
-
-	err = svc.Get(ctx, p)
-	require.NoError(t, err)
-	require.Equal(t, obj, w.Object())
-
-	rp := RangePrm{}
-	rp.SetChunkWriter(w)
-	commonPrm.SetNetmapLookupDepth(0)
-	rp.SetCommonParameters(commonPrm)
-	rp.WithAddress(addr)
-
-	off, ln := payloadSz/3, payloadSz/3
-
-	r := objectSDK.NewRange()
-	r.SetOffset(off)
-	r.SetLength(ln)
-
-	rp.SetRange(r)
-
-	err = svc.GetRange(ctx, rp)
-	require.ErrorAs(t, err, new(apistatus.ObjectNotFound))
-
-	w = NewSimpleObjectWriter()
-	rp.SetChunkWriter(w)
-	commonPrm.SetNetmapLookupDepth(1)
-
-	err = svc.GetRange(ctx, rp)
-	require.NoError(t, err)
-	require.Equal(t, payload[off:off+ln], w.Object().Payload())
-
-	hp := HeadPrm{}
-	hp.SetHeaderWriter(w)
-	commonPrm.SetNetmapLookupDepth(0)
-	hp.SetCommonParameters(commonPrm)
-	hp.WithAddress(addr)
-
-	err = svc.Head(ctx, hp)
-	require.ErrorAs(t, err, new(apistatus.ObjectNotFound))
-
-	w = NewSimpleObjectWriter()
-	hp.SetHeaderWriter(w)
-	commonPrm.SetNetmapLookupDepth(1)
-
-	err = svc.Head(ctx, hp)
-	require.NoError(t, err)
-	require.Equal(t, obj.CutPayload(), w.Object())
-}

pkg/services/object/get/util.go

@@ -102,7 +102,6 @@ func (c *clientWrapper) getObject(exec *execCtx, info coreclient.NodeInfo) (*obj
 		prm.SetContext(exec.context())
 		prm.SetClient(c.client)
 		prm.SetTTL(exec.prm.common.TTL())
-		prm.SetNetmapEpoch(exec.curProcEpoch)
 		prm.SetAddress(exec.address())
 		prm.SetPrivateKey(key)
 		prm.SetSessionToken(exec.prm.common.SessionToken())
@@ -134,7 +133,6 @@ func (c *clientWrapper) getObject(exec *execCtx, info coreclient.NodeInfo) (*obj
 		prm.SetContext(exec.context())
 		prm.SetClient(c.client)
 		prm.SetTTL(exec.prm.common.TTL())
-		prm.SetNetmapEpoch(exec.curProcEpoch)
 		prm.SetAddress(exec.address())
 		prm.SetPrivateKey(key)
 		prm.SetSessionToken(exec.prm.common.SessionToken())
@@ -181,7 +179,6 @@ func (c *clientWrapper) get(exec *execCtx, key *ecdsa.PrivateKey) (*object.Objec
 	prm.SetContext(exec.context())
 	prm.SetClient(c.client)
 	prm.SetTTL(exec.prm.common.TTL())
-	prm.SetNetmapEpoch(exec.curProcEpoch)
 	prm.SetAddress(exec.address())
 	prm.SetPrivateKey(key)
 	prm.SetSessionToken(exec.prm.common.SessionToken())

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

@@ -86,13 +86,6 @@ type readPrmCommon struct {
 	commonPrm
 }
 
-// SetNetmapEpoch sets the epoch number to be used to locate the object.
-//
-// By default current epoch on the server will be used.
-func (x *readPrmCommon) SetNetmapEpoch(_ uint64) {
-	// FIXME: (neofs-node#1194) not supported by client
-}
-
 // GetObjectPrm groups parameters of GetObject operation.
 type GetObjectPrm struct {
 	readPrmCommon

pkg/services/object/search/container.go

@@ -15,44 +15,29 @@ func (exec *execCtx) executeOnContainer() {
 		return
 	}
 
-	lookupDepth := exec.netmapLookupDepth()
-
-	exec.log.Debug("trying to execute in container...",
-		zap.Uint64("netmap lookup depth", lookupDepth),
-	)
+	exec.log.Debug("trying to execute in container...")
 
 	// initialize epoch number
-	ok := exec.initEpoch()
-	if !ok {
+	epoch, err := exec.svc.currentEpochReceiver.currentEpoch()
+	if err != nil {
+		exec.status = statusUndefined
+		exec.err = err
+		exec.log.Debug("could not get current epoch number", zap.Error(err))
 		return
 	}
 
-	for {
-		if exec.processCurrentEpoch() {
-			break
-		}
-
-		// check the maximum depth has been reached
-		if lookupDepth == 0 {
-			break
-		}
-
-		lookupDepth--
-
-		// go to the previous epoch
-		exec.curProcEpoch--
-	}
+	exec.processEpoch(epoch)
 
 	exec.status = statusOK
 	exec.err = nil
 }
 
-func (exec *execCtx) processCurrentEpoch() bool {
+func (exec *execCtx) processEpoch(epoch uint64) bool {
 	exec.log.Debug("process epoch",
-		zap.Uint64("number", exec.curProcEpoch),
+		zap.Uint64("number", epoch),
 	)
 
-	traverser, ok := exec.generateTraverser(exec.containerID())
+	traverser, ok := exec.generateTraverser(exec.containerID(), epoch)
 	if !ok {
 		return true
 	}

pkg/services/object/search/exec.go

@@ -25,8 +25,6 @@ type execCtx struct {
 	statusError
 
 	log *zap.Logger
-
-	curProcEpoch uint64
 }
 
 const (
@@ -66,40 +64,8 @@ func (exec *execCtx) searchFilters() object.SearchFilters {
 	return exec.prm.filters
 }
 
-func (exec *execCtx) netmapEpoch() uint64 {
-	return exec.prm.common.NetmapEpoch()
-}
-
-func (exec *execCtx) netmapLookupDepth() uint64 {
-	return exec.prm.common.NetmapLookupDepth()
-}
-
-func (exec *execCtx) initEpoch() bool {
-	exec.curProcEpoch = exec.netmapEpoch()
-	if exec.curProcEpoch > 0 {
-		return true
-	}
-
-	e, err := exec.svc.currentEpochReceiver.currentEpoch()
-
-	switch {
-	default:
-		exec.status = statusUndefined
-		exec.err = err
-
-		exec.log.Debug("could not get current epoch number",
-			zap.String("error", err.Error()),
-		)
-
-		return false
-	case err == nil:
-		exec.curProcEpoch = e
-		return true
-	}
-}
-
-func (exec *execCtx) generateTraverser(cnr cid.ID) (*placement.Traverser, bool) {
-	t, err := exec.svc.traverserGenerator.generateTraverser(cnr, exec.curProcEpoch)
+func (exec *execCtx) generateTraverser(cnr cid.ID, epoch uint64) (*placement.Traverser, bool) {
+	t, err := exec.svc.traverserGenerator.generateTraverser(cnr, epoch)
 
 	switch {
 	default: