Signed-off-by: Marina Biryukova <m.biryukova@yadro.com>

@@ -636,3 +636,3 @@
 	}
 
-	if err = h.obj.AbortMultipartUpload(ctx, p); err != nil {
+	networkInfo, err := h.obj.GetNetworkInfo(ctx)

@@ -218,2 +226,4 @@
 
 	AttributeFrostfsCopiesNumber = "frostfs-copies-number" // such format to match X-Amz-Meta-Frostfs-Copies-Number header
+
+	tombstoneLifetime = uint64(10)

@@ -772,0 +779,4 @@
+	var wg sync.WaitGroup
+	i := 0
+	tombstoneMembersSize := n.features.TombstoneMembersSize()
+	for ; i < len(members)/tombstoneMembersSize; i++ {

@@ -772,0 +809,4 @@
+	}
+}
+
+func (n *Layer) getMembers(ctx context.Context, bkt *data.BucketInfo, objID oid.ID) []oid.ID {

@@ -82,6 +82,18 @@ func (n *Layer) objectHead(ctx context.Context, bktInfo *data.BucketInfo, idObj
 	return n.frostFS.HeadObject(ctx, prm)
 }
 
+func (n *Layer) objectHeadRaw(ctx context.Context, bktInfo *data.BucketInfo, idObj oid.ID) (*object.Object, error) {

@@ -239,6 +251,7 @@ func newAppSettings(log *Logger, v *viper.Viper) *appSettings {
 		reconnectInterval:   fetchReconnectInterval(v),
 		frostfsidValidation: v.GetBool(cfgFrostfsIDValidationEnabled),
 		dialerSource:        getDialerSource(log.logger, v),
+		workerPoolSize:      v.GetInt(cfgWorkerPoolSize),

@@ -228,1 +228,4 @@
 source_ip_header: "Source-Ip"
+
+worker_pool_size: 100
+tombstone_members_size: 100

@@ -243,6 +246,8 @@ source_ip_header: "Source-Ip"
 | `allowed_access_key_id_prefixes` | `[]string` | no            |               | List of allowed `AccessKeyID` prefixes which S3 GW serve. If the parameter is omitted, all `AccessKeyID` will be accepted.                                                           |
 | `reconnect_interval`             | `duration` | no            | `1m`          | Listeners reconnection interval.                                                                                                                                                     |
 | `source_ip_header`               | `string`   | yes           |               | Custom header to retrieve Source IP.                                                                                                                                                 |
+| `worker_pool_size`               | `int`      | no            | `100`         | Maximum worker count in layer's worker pool.                                                                                                                                         |

@@ -216,2 +216,4 @@
 	obj.SetPayloadSize(prm.PayloadSize)
 
+	if prm.Type > 0 {
+		obj.SetType(prm.Type)

@@ -75,2 +75,4 @@
 	defaultRetryMaxBackoff  = 30 * time.Second
 	defaultRetryStrategy    = handler.RetryStrategyExponential
+
+	defaultTombstoneLifetime       = uint64(10)

@@ -166,0 +166,4 @@
+# Tombstone's lifetime in epochs.
+S3_GW_FROSTFS_TOMBSTONE_LIFETIME=10
+# Maximum number of object IDs in one tombstone.
+S3_GW_FROSTFS_TOMBSTONE_MEMBERS_COUNT=100

@@ -202,0 +203,4 @@
+    # Tombstone's lifetime in epochs.
+    lifetime: 10
+    # Maximum number of object IDs in one tombstone.
+    members_count: 100

@@ -264,2 +273,3 @@
 
-func (t *TestFrostFS) CreateObject(_ context.Context, prm frostfs.PrmObjectCreate) (*frostfs.CreateObjectResult, error) {
+func (t *TestFrostFS) CreateObject(ctx context.Context, prm frostfs.PrmObjectCreate) (*frostfs.CreateObjectResult, error) {
+	if prm.Type == object.TypeTombstone {

@@ -772,0 +788,4 @@
+	return nil
+}
+
+func (n *Layer) putTombstones(ctx context.Context, bkt *data.BucketInfo, networkInfo netmap.NetworkInfo, members []oid.ID) {

@@ -214,6 +215,7 @@ func (x *FrostFS) CreateObject(ctx context.Context, prm frostfs.PrmObjectCreate)
 	obj.SetOwnerID(x.owner)
 	obj.SetAttributes(attrs...)
 	obj.SetPayloadSize(prm.PayloadSize)
+	obj.SetType(prm.Type)