[#1086] services/control: implement DumpShard RPC

Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>

pkg/local_object_storage/engine/dump.go

@@ -0,0 +1,19 @@
+package engine
+
+import "github.com/nspcc-dev/neofs-node/pkg/local_object_storage/shard"
+
+// DumpShard dumps objects from the shard with provided identifier.
+//
+// Returns an error if shard is not read-only.
+func (e *StorageEngine) DumpShard(id *shard.ID, prm *shard.DumpPrm) error {
+	e.mtx.RLock()
+	defer e.mtx.RUnlock()
+
+	sh, ok := e.shards[id.String()]
+	if !ok {
+		return errShardNotFound
+	}
+
+	_, err := sh.Dump(prm)
+	return err
+}

pkg/services/control/convert.go

@@ -130,3 +130,21 @@ func (w *setShardModeResponseWrapper) FromGRPCMessage(m grpc.Message) error {
 
 	return nil
 }
+
+type dumpShardResponseWrapper struct {
+	*DumpShardResponse
+}
+
+func (w *dumpShardResponseWrapper) ToGRPCMessage() grpc.Message {
+	return w.DumpShardResponse
+}
+
+func (w *dumpShardResponseWrapper) FromGRPCMessage(m grpc.Message) error {
+	r, ok := m.(*DumpShardResponse)
+	if !ok {
+		return message.NewUnexpectedMessageType(m, (*DumpShardResponse)(nil))
+	}
+
+	w.DumpShardResponse = r
+	return nil
+}

pkg/services/control/rpc.go

@@ -14,6 +14,7 @@ const (
 	rpcDropObjects     = "DropObjects"
 	rpcListShards      = "ListShards"
 	rpcSetShardMode    = "SetShardMode"
+	rpcDumpShard       = "DumpShard"
 )
 
 // HealthCheck executes ControlService.HealthCheck RPC.
@@ -144,3 +145,16 @@ func SetShardMode(
 
 	return wResp.m, nil
 }
+
+// DumpShard executes ControlService.DumpShard RPC.
+func DumpShard(cli *client.Client, req *DumpShardRequest, opts ...client.CallOption) (*DumpShardResponse, error) {
+	wResp := new(dumpShardResponseWrapper)
+	wReq := &requestWrapper{m: req}
+
+	err := client.SendUnary(cli, common.CallMethodInfoUnary(serviceName, rpcDumpShard), wReq, wResp, opts...)
+	if err != nil {
+		return nil, err
+	}
+
+	return wResp.DumpShardResponse, nil
+}

pkg/services/control/server/dump.go

@@ -0,0 +1,37 @@
+package control
+
+import (
+	"context"
+
+	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/shard"
+	"github.com/nspcc-dev/neofs-node/pkg/services/control"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+)
+
+func (s *Server) DumpShard(_ context.Context, req *control.DumpShardRequest) (*control.DumpShardResponse, error) {
+	err := s.isValidRequest(req)
+	if err != nil {
+		return nil, status.Error(codes.PermissionDenied, err.Error())
+	}
+
+	shardID := shard.NewIDFromBytes(req.GetBody().GetShard_ID())
+
+	prm := new(shard.DumpPrm)
+	prm.WithPath(req.GetBody().GetFilepath())
+	prm.WithIgnoreErrors(req.GetBody().GetIgnoreErrors())
+
+	err = s.s.DumpShard(shardID, prm)
+	if err != nil {
+		return nil, status.Error(codes.Internal, err.Error())
+	}
+
+	resp := new(control.DumpShardResponse)
+	resp.SetBody(new(control.DumpShardResponse_Body))
+
+	err = SignMessage(s.key, resp)
+	if err != nil {
+		return nil, status.Error(codes.Internal, err.Error())
+	}
+	return resp, nil
+}

pkg/services/control/service.go

@@ -910,3 +910,172 @@ func (x *SetShardModeResponse) ReadSignedData(buf []byte) ([]byte, error) {
 func (x *SetShardModeResponse) SignedDataSize() int {
 	return x.GetBody().StableSize()
 }
+
+// SetShardID sets shard ID for the dump shard request.
+func (x *DumpShardRequest_Body) SetShardID(id []byte) {
+	x.Shard_ID = id
+}
+
+// SetFilepath sets filepath for the dump shard request.
+func (x *DumpShardRequest_Body) SetFilepath(p string) {
+	x.Filepath = p
+}
+
+// SetIgnoreErrors sets ignore errors flag for the dump shard request.
+func (x *DumpShardRequest_Body) SetIgnoreErrors(ignore bool) {
+	x.IgnoreErrors = ignore
+}
+
+const (
+	_ = iota
+	dumpShardReqBodyShardIDFNum
+	dumpShardReqBodyFilepathFNum
+	dumpShardReqBodyIgnoreErrorsFNum
+)
+
+// StableMarshal reads binary representation of request body binary format.
+//
+// If buffer length is less than StableSize(), new buffer is allocated.
+//
+// Returns any error encountered which did not allow writing the data completely.
+// Otherwise, returns the buffer in which the data is written.
+//
+// Structures with the same field values have the same binary format.
+func (x *DumpShardRequest_Body) StableMarshal(buf []byte) ([]byte, error) {
+	if x == nil {
+		return []byte{}, nil
+	}
+
+	if sz := x.StableSize(); len(buf) < sz {
+		buf = make([]byte, sz)
+	}
+
+	var (
+		offset, n int
+		err       error
+	)
+
+	n, err = proto.BytesMarshal(dumpShardReqBodyShardIDFNum, buf, x.Shard_ID)
+	if err != nil {
+		return nil, err
+	}
+
+	offset += n
+
+	n, err = proto.StringMarshal(dumpShardReqBodyFilepathFNum, buf[offset:], x.Filepath)
+	if err != nil {
+		return nil, err
+	}
+
+	offset += n
+
+	_, err = proto.BoolMarshal(dumpShardReqBodyIgnoreErrorsFNum, buf[offset:], x.IgnoreErrors)
+	if err != nil {
+		return nil, err
+	}
+
+	return buf, nil
+}
+
+// StableSize returns binary size of the request body in protobuf binary format.
+//
+// Structures with the same field values have the same binary size.
+func (x *DumpShardRequest_Body) StableSize() int {
+	if x == nil {
+		return 0
+	}
+
+	size := 0
+
+	size += proto.BytesSize(dumpShardReqBodyShardIDFNum, x.Shard_ID)
+	size += proto.StringSize(dumpShardReqBodyFilepathFNum, x.Filepath)
+	size += proto.BoolSize(dumpShardReqBodyIgnoreErrorsFNum, x.IgnoreErrors)
+
+	return size
+}
+
+// SetBody sets request body.
+func (x *DumpShardRequest) SetBody(v *DumpShardRequest_Body) {
+	if x != nil {
+		x.Body = v
+	}
+}
+
+// SetSignature sets body signature of the request.
+func (x *DumpShardRequest) SetSignature(v *Signature) {
+	if x != nil {
+		x.Signature = v
+	}
+}
+
+// ReadSignedData reads signed data from request to buf.
+//
+// If buffer length is less than x.SignedDataSize(), new buffer is allocated.
+//
+// Returns any error encountered which did not allow writing the data completely.
+// Otherwise, returns the buffer in which the data is written.
+//
+// Structures with the same field values have the same signed data.
+func (x *DumpShardRequest) ReadSignedData(buf []byte) ([]byte, error) {
+	return x.GetBody().StableMarshal(buf)
+}
+
+// SignedDataSize returns size of the request signed data in bytes.
+//
+// Structures with the same field values have the same signed data size.
+func (x *DumpShardRequest) SignedDataSize() int {
+	return x.GetBody().StableSize()
+}
+
+// StableMarshal reads binary representation of the response body in protobuf binary format.
+//
+// If buffer length is less than x.StableSize(), new buffer is allocated.
+//
+// Returns any error encountered which did not allow writing the data completely.
+// Otherwise, returns the buffer in which the data is written.
+//
+// Structures with the same field values have the same binary format.
+func (x *DumpShardResponse_Body) StableMarshal(buf []byte) ([]byte, error) {
+	return buf, nil
+}
+
+// StableSize returns binary size of the response body
+// in protobuf binary format.
+//
+// Structures with the same field values have the same binary size.
+func (x *DumpShardResponse_Body) StableSize() int {
+	return 0
+}
+
+// SetBody sets response body.
+func (x *DumpShardResponse) SetBody(v *DumpShardResponse_Body) {
+	if x != nil {
+		x.Body = v
+	}
+}
+
+// SetSignature sets response body signature.
+func (x *DumpShardResponse) SetSignature(v *Signature) {
+	if x != nil {
+		x.Signature = v
+	}
+}
+
+// ReadSignedData reads signed data from response to buf.
+//
+// If buffer length is less than SignedDataSize(), new buffer is allocated.
+//
+// Returns any error encountered which did not allow writing the data completely.
+// Otherwise, returns the buffer in which the data is written.
+//
+// Structures with the same field values have the same signed data.
+func (x *DumpShardResponse) ReadSignedData(buf []byte) ([]byte, error) {
+	return x.GetBody().StableMarshal(buf)
+}
+
+// SignedDataSize returns binary size of the signed data.
+//
+// Structures with the same field values have the same signed data size.
+func (x *DumpShardResponse) SignedDataSize() int {
+	return x.GetBody().StableSize()
+}

pkg/services/control/service.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.27.1
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.19.1
+// 	protoc        v3.19.4
 // source: pkg/services/control/service.proto
 
 package control
@@ -716,6 +716,122 @@ func (x *SetShardModeResponse) GetSignature() *Signature {
 	return nil
 }
 
+// DumpShard request.
+type DumpShardRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	// Body of dump shard request message.
+	Body *DumpShardRequest_Body `protobuf:"bytes,1,opt,name=body,proto3" json:"body,omitempty"`
+	// Body signature.
+	Signature *Signature `protobuf:"bytes,2,opt,name=signature,proto3" json:"signature,omitempty"`
+}
+
+func (x *DumpShardRequest) Reset() {
+	*x = DumpShardRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_pkg_services_control_service_proto_msgTypes[12]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *DumpShardRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*DumpShardRequest) ProtoMessage() {}
+
+func (x *DumpShardRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_pkg_services_control_service_proto_msgTypes[12]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use DumpShardRequest.ProtoReflect.Descriptor instead.
+func (*DumpShardRequest) Descriptor() ([]byte, []int) {
+	return file_pkg_services_control_service_proto_rawDescGZIP(), []int{12}
+}
+
+func (x *DumpShardRequest) GetBody() *DumpShardRequest_Body {
+	if x != nil {
+		return x.Body
+	}
+	return nil
+}
+
+func (x *DumpShardRequest) GetSignature() *Signature {
+	if x != nil {
+		return x.Signature
+	}
+	return nil
+}
+
+// DumpShard response.
+type DumpShardResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	// Body of dump shard response message.
+	Body *DumpShardResponse_Body `protobuf:"bytes,1,opt,name=body,proto3" json:"body,omitempty"`
+	// Body signature.
+	Signature *Signature `protobuf:"bytes,2,opt,name=signature,proto3" json:"signature,omitempty"`
+}
+
+func (x *DumpShardResponse) Reset() {
+	*x = DumpShardResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_pkg_services_control_service_proto_msgTypes[13]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *DumpShardResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*DumpShardResponse) ProtoMessage() {}
+
+func (x *DumpShardResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_pkg_services_control_service_proto_msgTypes[13]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use DumpShardResponse.ProtoReflect.Descriptor instead.
+func (*DumpShardResponse) Descriptor() ([]byte, []int) {
+	return file_pkg_services_control_service_proto_rawDescGZIP(), []int{13}
+}
+
+func (x *DumpShardResponse) GetBody() *DumpShardResponse_Body {
+	if x != nil {
+		return x.Body
+	}
+	return nil
+}
+
+func (x *DumpShardResponse) GetSignature() *Signature {
+	if x != nil {
+		return x.Signature
+	}
+	return nil
+}
+
 // Health check request body.
 type HealthCheckRequest_Body struct {
 	state         protoimpl.MessageState
@@ -726,7 +842,7 @@ type HealthCheckRequest_Body struct {
 func (x *HealthCheckRequest_Body) Reset() {
 	*x = HealthCheckRequest_Body{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_services_control_service_proto_msgTypes[12]
+		mi := &file_pkg_services_control_service_proto_msgTypes[14]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -739,7 +855,7 @@ func (x *HealthCheckRequest_Body) String() string {
 func (*HealthCheckRequest_Body) ProtoMessage() {}
 
 func (x *HealthCheckRequest_Body) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_services_control_service_proto_msgTypes[12]
+	mi := &file_pkg_services_control_service_proto_msgTypes[14]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -770,7 +886,7 @@ type HealthCheckResponse_Body struct {
 func (x *HealthCheckResponse_Body) Reset() {
 	*x = HealthCheckResponse_Body{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_services_control_service_proto_msgTypes[13]
+		mi := &file_pkg_services_control_service_proto_msgTypes[15]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -783,7 +899,7 @@ func (x *HealthCheckResponse_Body) String() string {
 func (*HealthCheckResponse_Body) ProtoMessage() {}
 
 func (x *HealthCheckResponse_Body) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_services_control_service_proto_msgTypes[13]
+	mi := &file_pkg_services_control_service_proto_msgTypes[15]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -823,7 +939,7 @@ type NetmapSnapshotRequest_Body struct {
 func (x *NetmapSnapshotRequest_Body) Reset() {
 	*x = NetmapSnapshotRequest_Body{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_services_control_service_proto_msgTypes[14]
+		mi := &file_pkg_services_control_service_proto_msgTypes[16]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -836,7 +952,7 @@ func (x *NetmapSnapshotRequest_Body) String() string {
 func (*NetmapSnapshotRequest_Body) ProtoMessage() {}
 
 func (x *NetmapSnapshotRequest_Body) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_services_control_service_proto_msgTypes[14]
+	mi := &file_pkg_services_control_service_proto_msgTypes[16]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -865,7 +981,7 @@ type NetmapSnapshotResponse_Body struct {
 func (x *NetmapSnapshotResponse_Body) Reset() {
 	*x = NetmapSnapshotResponse_Body{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_services_control_service_proto_msgTypes[15]
+		mi := &file_pkg_services_control_service_proto_msgTypes[17]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -878,7 +994,7 @@ func (x *NetmapSnapshotResponse_Body) String() string {
 func (*NetmapSnapshotResponse_Body) ProtoMessage() {}
 
 func (x *NetmapSnapshotResponse_Body) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_services_control_service_proto_msgTypes[15]
+	mi := &file_pkg_services_control_service_proto_msgTypes[17]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -914,7 +1030,7 @@ type SetNetmapStatusRequest_Body struct {
 func (x *SetNetmapStatusRequest_Body) Reset() {
 	*x = SetNetmapStatusRequest_Body{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_services_control_service_proto_msgTypes[16]
+		mi := &file_pkg_services_control_service_proto_msgTypes[18]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -927,7 +1043,7 @@ func (x *SetNetmapStatusRequest_Body) String() string {
 func (*SetNetmapStatusRequest_Body) ProtoMessage() {}
 
 func (x *SetNetmapStatusRequest_Body) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_services_control_service_proto_msgTypes[16]
+	mi := &file_pkg_services_control_service_proto_msgTypes[18]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -960,7 +1076,7 @@ type SetNetmapStatusResponse_Body struct {
 func (x *SetNetmapStatusResponse_Body) Reset() {
 	*x = SetNetmapStatusResponse_Body{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_services_control_service_proto_msgTypes[17]
+		mi := &file_pkg_services_control_service_proto_msgTypes[19]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -973,7 +1089,7 @@ func (x *SetNetmapStatusResponse_Body) String() string {
 func (*SetNetmapStatusResponse_Body) ProtoMessage() {}
 
 func (x *SetNetmapStatusResponse_Body) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_services_control_service_proto_msgTypes[17]
+	mi := &file_pkg_services_control_service_proto_msgTypes[19]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1003,7 +1119,7 @@ type DropObjectsRequest_Body struct {
 func (x *DropObjectsRequest_Body) Reset() {
 	*x = DropObjectsRequest_Body{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_services_control_service_proto_msgTypes[18]
+		mi := &file_pkg_services_control_service_proto_msgTypes[20]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -1016,7 +1132,7 @@ func (x *DropObjectsRequest_Body) String() string {
 func (*DropObjectsRequest_Body) ProtoMessage() {}
 
 func (x *DropObjectsRequest_Body) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_services_control_service_proto_msgTypes[18]
+	mi := &file_pkg_services_control_service_proto_msgTypes[20]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1049,7 +1165,7 @@ type DropObjectsResponse_Body struct {
 func (x *DropObjectsResponse_Body) Reset() {
 	*x = DropObjectsResponse_Body{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_services_control_service_proto_msgTypes[19]
+		mi := &file_pkg_services_control_service_proto_msgTypes[21]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -1062,7 +1178,7 @@ func (x *DropObjectsResponse_Body) String() string {
 func (*DropObjectsResponse_Body) ProtoMessage() {}
 
 func (x *DropObjectsResponse_Body) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_services_control_service_proto_msgTypes[19]
+	mi := &file_pkg_services_control_service_proto_msgTypes[21]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1088,7 +1204,7 @@ type ListShardsRequest_Body struct {
 func (x *ListShardsRequest_Body) Reset() {
 	*x = ListShardsRequest_Body{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_services_control_service_proto_msgTypes[20]
+		mi := &file_pkg_services_control_service_proto_msgTypes[22]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -1101,7 +1217,7 @@ func (x *ListShardsRequest_Body) String() string {
 func (*ListShardsRequest_Body) ProtoMessage() {}
 
 func (x *ListShardsRequest_Body) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_services_control_service_proto_msgTypes[20]
+	mi := &file_pkg_services_control_service_proto_msgTypes[22]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1130,7 +1246,7 @@ type ListShardsResponse_Body struct {
 func (x *ListShardsResponse_Body) Reset() {
 	*x = ListShardsResponse_Body{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_services_control_service_proto_msgTypes[21]
+		mi := &file_pkg_services_control_service_proto_msgTypes[23]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -1143,7 +1259,7 @@ func (x *ListShardsResponse_Body) String() string {
 func (*ListShardsResponse_Body) ProtoMessage() {}
 
 func (x *ListShardsResponse_Body) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_services_control_service_proto_msgTypes[21]
+	mi := &file_pkg_services_control_service_proto_msgTypes[23]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1181,7 +1297,7 @@ type SetShardModeRequest_Body struct {
 func (x *SetShardModeRequest_Body) Reset() {
 	*x = SetShardModeRequest_Body{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_services_control_service_proto_msgTypes[22]
+		mi := &file_pkg_services_control_service_proto_msgTypes[24]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -1194,7 +1310,7 @@ func (x *SetShardModeRequest_Body) String() string {
 func (*SetShardModeRequest_Body) ProtoMessage() {}
 
 func (x *SetShardModeRequest_Body) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_services_control_service_proto_msgTypes[22]
+	mi := &file_pkg_services_control_service_proto_msgTypes[24]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1234,7 +1350,7 @@ type SetShardModeResponse_Body struct {
 func (x *SetShardModeResponse_Body) Reset() {
 	*x = SetShardModeResponse_Body{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_services_control_service_proto_msgTypes[23]
+		mi := &file_pkg_services_control_service_proto_msgTypes[25]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -1247,7 +1363,7 @@ func (x *SetShardModeResponse_Body) String() string {
 func (*SetShardModeResponse_Body) ProtoMessage() {}
 
 func (x *SetShardModeResponse_Body) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_services_control_service_proto_msgTypes[23]
+	mi := &file_pkg_services_control_service_proto_msgTypes[25]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1263,6 +1379,112 @@ func (*SetShardModeResponse_Body) Descriptor() ([]byte, []int) {
 	return file_pkg_services_control_service_proto_rawDescGZIP(), []int{11, 0}
 }
 
+// Request body structure.
+type DumpShardRequest_Body struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	// ID of the shard.
+	Shard_ID []byte `protobuf:"bytes,1,opt,name=shard_ID,json=shardID,proto3" json:"shard_ID,omitempty"`
+	// Path to the output.
+	Filepath string `protobuf:"bytes,2,opt,name=filepath,proto3" json:"filepath,omitempty"`
+	// Flag indicating whether object read errors should be ignored.
+	IgnoreErrors bool `protobuf:"varint,3,opt,name=ignore_errors,json=ignoreErrors,proto3" json:"ignore_errors,omitempty"`
+}
+
+func (x *DumpShardRequest_Body) Reset() {
+	*x = DumpShardRequest_Body{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_pkg_services_control_service_proto_msgTypes[26]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *DumpShardRequest_Body) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*DumpShardRequest_Body) ProtoMessage() {}
+
+func (x *DumpShardRequest_Body) ProtoReflect() protoreflect.Message {
+	mi := &file_pkg_services_control_service_proto_msgTypes[26]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use DumpShardRequest_Body.ProtoReflect.Descriptor instead.
+func (*DumpShardRequest_Body) Descriptor() ([]byte, []int) {
+	return file_pkg_services_control_service_proto_rawDescGZIP(), []int{12, 0}
+}
+
+func (x *DumpShardRequest_Body) GetShard_ID() []byte {
+	if x != nil {
+		return x.Shard_ID
+	}
+	return nil
+}
+
+func (x *DumpShardRequest_Body) GetFilepath() string {
+	if x != nil {
+		return x.Filepath
+	}
+	return ""
+}
+
+func (x *DumpShardRequest_Body) GetIgnoreErrors() bool {
+	if x != nil {
+		return x.IgnoreErrors
+	}
+	return false
+}
+
+// Response body structure.
+type DumpShardResponse_Body struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+}
+
+func (x *DumpShardResponse_Body) Reset() {
+	*x = DumpShardResponse_Body{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_pkg_services_control_service_proto_msgTypes[27]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *DumpShardResponse_Body) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*DumpShardResponse_Body) ProtoMessage() {}
+
+func (x *DumpShardResponse_Body) ProtoReflect() protoreflect.Message {
+	mi := &file_pkg_services_control_service_proto_msgTypes[27]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use DumpShardResponse_Body.ProtoReflect.Descriptor instead.
+func (*DumpShardResponse_Body) Descriptor() ([]byte, []int) {
+	return file_pkg_services_control_service_proto_rawDescGZIP(), []int{13, 0}
+}
+
 var File_pkg_services_control_service_proto protoreflect.FileDescriptor
 
 var file_pkg_services_control_service_proto_rawDesc = []byte{
@@ -1396,42 +1618,68 @@ var file_pkg_services_control_service_proto_rawDesc = []byte{
 	0x6f, 0x64, 0x79, 0x12, 0x30, 0x0a, 0x09, 0x73, 0x69, 0x67, 0x6e, 0x61, 0x74, 0x75, 0x72, 0x65,
 	0x18, 0x02, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x12, 0x2e, 0x63, 0x6f, 0x6e, 0x74, 0x72, 0x6f, 0x6c,
 	0x2e, 0x53, 0x69, 0x67, 0x6e, 0x61, 0x74, 0x75, 0x72, 0x65, 0x52, 0x09, 0x73, 0x69, 0x67, 0x6e,
-	0x61, 0x74, 0x75, 0x72, 0x65, 0x1a, 0x06, 0x0a, 0x04, 0x42, 0x6f, 0x64, 0x79, 0x32, 0xe1, 0x03,
+	0x61, 0x74, 0x75, 0x72, 0x65, 0x1a, 0x06, 0x0a, 0x04, 0x42, 0x6f, 0x64, 0x79, 0x22, 0xdc, 0x01,
-	0x0a, 0x0e, 0x43, 0x6f, 0x6e, 0x74, 0x72, 0x6f, 0x6c, 0x53, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65,
+	0x0a, 0x10, 0x44, 0x75, 0x6d, 0x70, 0x53, 0x68, 0x61, 0x72, 0x64, 0x52, 0x65, 0x71, 0x75, 0x65,
-	0x12, 0x48, 0x0a, 0x0b, 0x48, 0x65, 0x61, 0x6c, 0x74, 0x68, 0x43, 0x68, 0x65, 0x63, 0x6b, 0x12,
+	0x73, 0x74, 0x12, 0x32, 0x0a, 0x04, 0x62, 0x6f, 0x64, 0x79, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0b,
-	0x1b, 0x2e, 0x63, 0x6f, 0x6e, 0x74, 0x72, 0x6f, 0x6c, 0x2e, 0x48, 0x65, 0x61, 0x6c, 0x74, 0x68,
+	0x32, 0x1e, 0x2e, 0x63, 0x6f, 0x6e, 0x74, 0x72, 0x6f, 0x6c, 0x2e, 0x44, 0x75, 0x6d, 0x70, 0x53,
-	0x43, 0x68, 0x65, 0x63, 0x6b, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x1c, 0x2e, 0x63,
+	0x68, 0x61, 0x72, 0x64, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x2e, 0x42, 0x6f, 0x64, 0x79,
-	0x6f, 0x6e, 0x74, 0x72, 0x6f, 0x6c, 0x2e, 0x48, 0x65, 0x61, 0x6c, 0x74, 0x68, 0x43, 0x68, 0x65,
+	0x52, 0x04, 0x62, 0x6f, 0x64, 0x79, 0x12, 0x30, 0x0a, 0x09, 0x73, 0x69, 0x67, 0x6e, 0x61, 0x74,
-	0x63, 0x6b, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x12, 0x51, 0x0a, 0x0e, 0x4e, 0x65,
+	0x75, 0x72, 0x65, 0x18, 0x02, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x12, 0x2e, 0x63, 0x6f, 0x6e, 0x74,
-	0x74, 0x6d, 0x61, 0x70, 0x53, 0x6e, 0x61, 0x70, 0x73, 0x68, 0x6f, 0x74, 0x12, 0x1e, 0x2e, 0x63,
+	0x72, 0x6f, 0x6c, 0x2e, 0x53, 0x69, 0x67, 0x6e, 0x61, 0x74, 0x75, 0x72, 0x65, 0x52, 0x09, 0x73,
-	0x6f, 0x6e, 0x74, 0x72, 0x6f, 0x6c, 0x2e, 0x4e, 0x65, 0x74, 0x6d, 0x61, 0x70, 0x53, 0x6e, 0x61,
+	0x69, 0x67, 0x6e, 0x61, 0x74, 0x75, 0x72, 0x65, 0x1a, 0x62, 0x0a, 0x04, 0x42, 0x6f, 0x64, 0x79,
-	0x70, 0x73, 0x68, 0x6f, 0x74, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x1f, 0x2e, 0x63,
+	0x12, 0x19, 0x0a, 0x08, 0x73, 0x68, 0x61, 0x72, 0x64, 0x5f, 0x49, 0x44, 0x18, 0x01, 0x20, 0x01,
-	0x6f, 0x6e, 0x74, 0x72, 0x6f, 0x6c, 0x2e, 0x4e, 0x65, 0x74, 0x6d, 0x61, 0x70, 0x53, 0x6e, 0x61,
+	0x28, 0x0c, 0x52, 0x07, 0x73, 0x68, 0x61, 0x72, 0x64, 0x49, 0x44, 0x12, 0x1a, 0x0a, 0x08, 0x66,
-	0x70, 0x73, 0x68, 0x6f, 0x74, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x12, 0x54, 0x0a,
+	0x69, 0x6c, 0x65, 0x70, 0x61, 0x74, 0x68, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x08, 0x66,
-	0x0f, 0x53, 0x65, 0x74, 0x4e, 0x65, 0x74, 0x6d, 0x61, 0x70, 0x53, 0x74, 0x61, 0x74, 0x75, 0x73,
+	0x69, 0x6c, 0x65, 0x70, 0x61, 0x74, 0x68, 0x12, 0x23, 0x0a, 0x0d, 0x69, 0x67, 0x6e, 0x6f, 0x72,
-	0x12, 0x1f, 0x2e, 0x63, 0x6f, 0x6e, 0x74, 0x72, 0x6f, 0x6c, 0x2e, 0x53, 0x65, 0x74, 0x4e, 0x65,
+	0x65, 0x5f, 0x65, 0x72, 0x72, 0x6f, 0x72, 0x73, 0x18, 0x03, 0x20, 0x01, 0x28, 0x08, 0x52, 0x0c,
-	0x74, 0x6d, 0x61, 0x70, 0x53, 0x74, 0x61, 0x74, 0x75, 0x73, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73,
+	0x69, 0x67, 0x6e, 0x6f, 0x72, 0x65, 0x45, 0x72, 0x72, 0x6f, 0x72, 0x73, 0x22, 0x82, 0x01, 0x0a,
-	0x74, 0x1a, 0x20, 0x2e, 0x63, 0x6f, 0x6e, 0x74, 0x72, 0x6f, 0x6c, 0x2e, 0x53, 0x65, 0x74, 0x4e,
+	0x11, 0x44, 0x75, 0x6d, 0x70, 0x53, 0x68, 0x61, 0x72, 0x64, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e,
-	0x65, 0x74, 0x6d, 0x61, 0x70, 0x53, 0x74, 0x61, 0x74, 0x75, 0x73, 0x52, 0x65, 0x73, 0x70, 0x6f,
+	0x73, 0x65, 0x12, 0x33, 0x0a, 0x04, 0x62, 0x6f, 0x64, 0x79, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0b,
-	0x6e, 0x73, 0x65, 0x12, 0x48, 0x0a, 0x0b, 0x44, 0x72, 0x6f, 0x70, 0x4f, 0x62, 0x6a, 0x65, 0x63,
+	0x32, 0x1f, 0x2e, 0x63, 0x6f, 0x6e, 0x74, 0x72, 0x6f, 0x6c, 0x2e, 0x44, 0x75, 0x6d, 0x70, 0x53,
-	0x74, 0x73, 0x12, 0x1b, 0x2e, 0x63, 0x6f, 0x6e, 0x74, 0x72, 0x6f, 0x6c, 0x2e, 0x44, 0x72, 0x6f,
+	0x68, 0x61, 0x72, 0x64, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x2e, 0x42, 0x6f, 0x64,
-	0x70, 0x4f, 0x62, 0x6a, 0x65, 0x63, 0x74, 0x73, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a,
+	0x79, 0x52, 0x04, 0x62, 0x6f, 0x64, 0x79, 0x12, 0x30, 0x0a, 0x09, 0x73, 0x69, 0x67, 0x6e, 0x61,
-	0x1c, 0x2e, 0x63, 0x6f, 0x6e, 0x74, 0x72, 0x6f, 0x6c, 0x2e, 0x44, 0x72, 0x6f, 0x70, 0x4f, 0x62,
+	0x74, 0x75, 0x72, 0x65, 0x18, 0x02, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x12, 0x2e, 0x63, 0x6f, 0x6e,
-	0x6a, 0x65, 0x63, 0x74, 0x73, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x12, 0x45, 0x0a,
+	0x74, 0x72, 0x6f, 0x6c, 0x2e, 0x53, 0x69, 0x67, 0x6e, 0x61, 0x74, 0x75, 0x72, 0x65, 0x52, 0x09,
-	0x0a, 0x4c, 0x69, 0x73, 0x74, 0x53, 0x68, 0x61, 0x72, 0x64, 0x73, 0x12, 0x1a, 0x2e, 0x63, 0x6f,
+	0x73, 0x69, 0x67, 0x6e, 0x61, 0x74, 0x75, 0x72, 0x65, 0x1a, 0x06, 0x0a, 0x04, 0x42, 0x6f, 0x64,
+	0x79, 0x32, 0xa5, 0x04, 0x0a, 0x0e, 0x43, 0x6f, 0x6e, 0x74, 0x72, 0x6f, 0x6c, 0x53, 0x65, 0x72,
+	0x76, 0x69, 0x63, 0x65, 0x12, 0x48, 0x0a, 0x0b, 0x48, 0x65, 0x61, 0x6c, 0x74, 0x68, 0x43, 0x68,
+	0x65, 0x63, 0x6b, 0x12, 0x1b, 0x2e, 0x63, 0x6f, 0x6e, 0x74, 0x72, 0x6f, 0x6c, 0x2e, 0x48, 0x65,
+	0x61, 0x6c, 0x74, 0x68, 0x43, 0x68, 0x65, 0x63, 0x6b, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74,
+	0x1a, 0x1c, 0x2e, 0x63, 0x6f, 0x6e, 0x74, 0x72, 0x6f, 0x6c, 0x2e, 0x48, 0x65, 0x61, 0x6c, 0x74,
+	0x68, 0x43, 0x68, 0x65, 0x63, 0x6b, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x12, 0x51,
+	0x0a, 0x0e, 0x4e, 0x65, 0x74, 0x6d, 0x61, 0x70, 0x53, 0x6e, 0x61, 0x70, 0x73, 0x68, 0x6f, 0x74,
+	0x12, 0x1e, 0x2e, 0x63, 0x6f, 0x6e, 0x74, 0x72, 0x6f, 0x6c, 0x2e, 0x4e, 0x65, 0x74, 0x6d, 0x61,
+	0x70, 0x53, 0x6e, 0x61, 0x70, 0x73, 0x68, 0x6f, 0x74, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74,
+	0x1a, 0x1f, 0x2e, 0x63, 0x6f, 0x6e, 0x74, 0x72, 0x6f, 0x6c, 0x2e, 0x4e, 0x65, 0x74, 0x6d, 0x61,
+	0x70, 0x53, 0x6e, 0x61, 0x70, 0x73, 0x68, 0x6f, 0x74, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73,
+	0x65, 0x12, 0x54, 0x0a, 0x0f, 0x53, 0x65, 0x74, 0x4e, 0x65, 0x74, 0x6d, 0x61, 0x70, 0x53, 0x74,
+	0x61, 0x74, 0x75, 0x73, 0x12, 0x1f, 0x2e, 0x63, 0x6f, 0x6e, 0x74, 0x72, 0x6f, 0x6c, 0x2e, 0x53,
+	0x65, 0x74, 0x4e, 0x65, 0x74, 0x6d, 0x61, 0x70, 0x53, 0x74, 0x61, 0x74, 0x75, 0x73, 0x52, 0x65,
+	0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x20, 0x2e, 0x63, 0x6f, 0x6e, 0x74, 0x72, 0x6f, 0x6c, 0x2e,
+	0x53, 0x65, 0x74, 0x4e, 0x65, 0x74, 0x6d, 0x61, 0x70, 0x53, 0x74, 0x61, 0x74, 0x75, 0x73, 0x52,
+	0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x12, 0x48, 0x0a, 0x0b, 0x44, 0x72, 0x6f, 0x70, 0x4f,
+	0x62, 0x6a, 0x65, 0x63, 0x74, 0x73, 0x12, 0x1b, 0x2e, 0x63, 0x6f, 0x6e, 0x74, 0x72, 0x6f, 0x6c,
+	0x2e, 0x44, 0x72, 0x6f, 0x70, 0x4f, 0x62, 0x6a, 0x65, 0x63, 0x74, 0x73, 0x52, 0x65, 0x71, 0x75,
+	0x65, 0x73, 0x74, 0x1a, 0x1c, 0x2e, 0x63, 0x6f, 0x6e, 0x74, 0x72, 0x6f, 0x6c, 0x2e, 0x44, 0x72,
+	0x6f, 0x70, 0x4f, 0x62, 0x6a, 0x65, 0x63, 0x74, 0x73, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73,
+	0x65, 0x12, 0x45, 0x0a, 0x0a, 0x4c, 0x69, 0x73, 0x74, 0x53, 0x68, 0x61, 0x72, 0x64, 0x73, 0x12,
+	0x1a, 0x2e, 0x63, 0x6f, 0x6e, 0x74, 0x72, 0x6f, 0x6c, 0x2e, 0x4c, 0x69, 0x73, 0x74, 0x53, 0x68,
+	0x61, 0x72, 0x64, 0x73, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x1b, 0x2e, 0x63, 0x6f,
 	0x6e, 0x74, 0x72, 0x6f, 0x6c, 0x2e, 0x4c, 0x69, 0x73, 0x74, 0x53, 0x68, 0x61, 0x72, 0x64, 0x73,
-	0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x1b, 0x2e, 0x63, 0x6f, 0x6e, 0x74, 0x72, 0x6f,
+	0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x12, 0x4b, 0x0a, 0x0c, 0x53, 0x65, 0x74, 0x53,
-	0x6c, 0x2e, 0x4c, 0x69, 0x73, 0x74, 0x53, 0x68, 0x61, 0x72, 0x64, 0x73, 0x52, 0x65, 0x73, 0x70,
+	0x68, 0x61, 0x72, 0x64, 0x4d, 0x6f, 0x64, 0x65, 0x12, 0x1c, 0x2e, 0x63, 0x6f, 0x6e, 0x74, 0x72,
-	0x6f, 0x6e, 0x73, 0x65, 0x12, 0x4b, 0x0a, 0x0c, 0x53, 0x65, 0x74, 0x53, 0x68, 0x61, 0x72, 0x64,
+	0x6f, 0x6c, 0x2e, 0x53, 0x65, 0x74, 0x53, 0x68, 0x61, 0x72, 0x64, 0x4d, 0x6f, 0x64, 0x65, 0x52,
-	0x4d, 0x6f, 0x64, 0x65, 0x12, 0x1c, 0x2e, 0x63, 0x6f, 0x6e, 0x74, 0x72, 0x6f, 0x6c, 0x2e, 0x53,
+	0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x1d, 0x2e, 0x63, 0x6f, 0x6e, 0x74, 0x72, 0x6f, 0x6c,
-	0x65, 0x74, 0x53, 0x68, 0x61, 0x72, 0x64, 0x4d, 0x6f, 0x64, 0x65, 0x52, 0x65, 0x71, 0x75, 0x65,
+	0x2e, 0x53, 0x65, 0x74, 0x53, 0x68, 0x61, 0x72, 0x64, 0x4d, 0x6f, 0x64, 0x65, 0x52, 0x65, 0x73,
-	0x73, 0x74, 0x1a, 0x1d, 0x2e, 0x63, 0x6f, 0x6e, 0x74, 0x72, 0x6f, 0x6c, 0x2e, 0x53, 0x65, 0x74,
+	0x70, 0x6f, 0x6e, 0x73, 0x65, 0x12, 0x42, 0x0a, 0x09, 0x44, 0x75, 0x6d, 0x70, 0x53, 0x68, 0x61,
-	0x53, 0x68, 0x61, 0x72, 0x64, 0x4d, 0x6f, 0x64, 0x65, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73,
+	0x72, 0x64, 0x12, 0x19, 0x2e, 0x63, 0x6f, 0x6e, 0x74, 0x72, 0x6f, 0x6c, 0x2e, 0x44, 0x75, 0x6d,
-	0x65, 0x42, 0x36, 0x5a, 0x34, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f,
+	0x70, 0x53, 0x68, 0x61, 0x72, 0x64, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x1a, 0x2e,
-	0x6e, 0x73, 0x70, 0x63, 0x63, 0x2d, 0x64, 0x65, 0x76, 0x2f, 0x6e, 0x65, 0x6f, 0x66, 0x73, 0x2d,
+	0x63, 0x6f, 0x6e, 0x74, 0x72, 0x6f, 0x6c, 0x2e, 0x44, 0x75, 0x6d, 0x70, 0x53, 0x68, 0x61, 0x72,
-	0x6e, 0x6f, 0x64, 0x65, 0x2f, 0x70, 0x6b, 0x67, 0x2f, 0x73, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65,
+	0x64, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x42, 0x36, 0x5a, 0x34, 0x67, 0x69, 0x74,
-	0x73, 0x2f, 0x63, 0x6f, 0x6e, 0x74, 0x72, 0x6f, 0x6c, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f,
+	0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x6e, 0x73, 0x70, 0x63, 0x63, 0x2d, 0x64, 0x65,
-	0x33,
+	0x76, 0x2f, 0x6e, 0x65, 0x6f, 0x66, 0x73, 0x2d, 0x6e, 0x6f, 0x64, 0x65, 0x2f, 0x70, 0x6b, 0x67,
+	0x2f, 0x73, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x73, 0x2f, 0x63, 0x6f, 0x6e, 0x74, 0x72, 0x6f,
+	0x6c, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -1446,7 +1694,7 @@ func file_pkg_services_control_service_proto_rawDescGZIP() []byte {
 	return file_pkg_services_control_service_proto_rawDescData
 }
 
-var file_pkg_services_control_service_proto_msgTypes = make([]protoimpl.MessageInfo, 24)
+var file_pkg_services_control_service_proto_msgTypes = make([]protoimpl.MessageInfo, 28)
 var file_pkg_services_control_service_proto_goTypes = []interface{}{
 	(*HealthCheckRequest)(nil),           // 0: control.HealthCheckRequest
 	(*HealthCheckResponse)(nil),          // 1: control.HealthCheckResponse
@@ -1460,73 +1708,83 @@ var file_pkg_services_control_service_proto_goTypes = []interface{}{
 	(*ListShardsResponse)(nil),           // 9: control.ListShardsResponse
 	(*SetShardModeRequest)(nil),          // 10: control.SetShardModeRequest
 	(*SetShardModeResponse)(nil),         // 11: control.SetShardModeResponse
-	(*HealthCheckRequest_Body)(nil),      // 12: control.HealthCheckRequest.Body
+	(*DumpShardRequest)(nil),             // 12: control.DumpShardRequest
-	(*HealthCheckResponse_Body)(nil),     // 13: control.HealthCheckResponse.Body
+	(*DumpShardResponse)(nil),            // 13: control.DumpShardResponse
-	(*NetmapSnapshotRequest_Body)(nil),   // 14: control.NetmapSnapshotRequest.Body
+	(*HealthCheckRequest_Body)(nil),      // 14: control.HealthCheckRequest.Body
-	(*NetmapSnapshotResponse_Body)(nil),  // 15: control.NetmapSnapshotResponse.Body
+	(*HealthCheckResponse_Body)(nil),     // 15: control.HealthCheckResponse.Body
-	(*SetNetmapStatusRequest_Body)(nil),  // 16: control.SetNetmapStatusRequest.Body
+	(*NetmapSnapshotRequest_Body)(nil),   // 16: control.NetmapSnapshotRequest.Body
-	(*SetNetmapStatusResponse_Body)(nil), // 17: control.SetNetmapStatusResponse.Body
+	(*NetmapSnapshotResponse_Body)(nil),  // 17: control.NetmapSnapshotResponse.Body
-	(*DropObjectsRequest_Body)(nil),      // 18: control.DropObjectsRequest.Body
+	(*SetNetmapStatusRequest_Body)(nil),  // 18: control.SetNetmapStatusRequest.Body
-	(*DropObjectsResponse_Body)(nil),     // 19: control.DropObjectsResponse.Body
+	(*SetNetmapStatusResponse_Body)(nil), // 19: control.SetNetmapStatusResponse.Body
-	(*ListShardsRequest_Body)(nil),       // 20: control.ListShardsRequest.Body
+	(*DropObjectsRequest_Body)(nil),      // 20: control.DropObjectsRequest.Body
-	(*ListShardsResponse_Body)(nil),      // 21: control.ListShardsResponse.Body
+	(*DropObjectsResponse_Body)(nil),     // 21: control.DropObjectsResponse.Body
-	(*SetShardModeRequest_Body)(nil),     // 22: control.SetShardModeRequest.Body
+	(*ListShardsRequest_Body)(nil),       // 22: control.ListShardsRequest.Body
-	(*SetShardModeResponse_Body)(nil),    // 23: control.SetShardModeResponse.Body
+	(*ListShardsResponse_Body)(nil),      // 23: control.ListShardsResponse.Body
-	(*Signature)(nil),                    // 24: control.Signature
+	(*SetShardModeRequest_Body)(nil),     // 24: control.SetShardModeRequest.Body
-	(NetmapStatus)(0),                    // 25: control.NetmapStatus
+	(*SetShardModeResponse_Body)(nil),    // 25: control.SetShardModeResponse.Body
-	(HealthStatus)(0),                    // 26: control.HealthStatus
+	(*DumpShardRequest_Body)(nil),        // 26: control.DumpShardRequest.Body
-	(*Netmap)(nil),                       // 27: control.Netmap
+	(*DumpShardResponse_Body)(nil),       // 27: control.DumpShardResponse.Body
-	(*ShardInfo)(nil),                    // 28: control.ShardInfo
+	(*Signature)(nil),                    // 28: control.Signature
-	(ShardMode)(0),                       // 29: control.ShardMode
+	(NetmapStatus)(0),                    // 29: control.NetmapStatus
+	(HealthStatus)(0),                    // 30: control.HealthStatus
+	(*Netmap)(nil),                       // 31: control.Netmap
+	(*ShardInfo)(nil),                    // 32: control.ShardInfo
+	(ShardMode)(0),                       // 33: control.ShardMode
 }
 var file_pkg_services_control_service_proto_depIdxs = []int32{
-	12, // 0: control.HealthCheckRequest.body:type_name -> control.HealthCheckRequest.Body
+	14, // 0: control.HealthCheckRequest.body:type_name -> control.HealthCheckRequest.Body
-	24, // 1: control.HealthCheckRequest.signature:type_name -> control.Signature
+	28, // 1: control.HealthCheckRequest.signature:type_name -> control.Signature
-	13, // 2: control.HealthCheckResponse.body:type_name -> control.HealthCheckResponse.Body
+	15, // 2: control.HealthCheckResponse.body:type_name -> control.HealthCheckResponse.Body
-	24, // 3: control.HealthCheckResponse.signature:type_name -> control.Signature
+	28, // 3: control.HealthCheckResponse.signature:type_name -> control.Signature
-	14, // 4: control.NetmapSnapshotRequest.body:type_name -> control.NetmapSnapshotRequest.Body
+	16, // 4: control.NetmapSnapshotRequest.body:type_name -> control.NetmapSnapshotRequest.Body
-	24, // 5: control.NetmapSnapshotRequest.signature:type_name -> control.Signature
+	28, // 5: control.NetmapSnapshotRequest.signature:type_name -> control.Signature
-	15, // 6: control.NetmapSnapshotResponse.body:type_name -> control.NetmapSnapshotResponse.Body
+	17, // 6: control.NetmapSnapshotResponse.body:type_name -> control.NetmapSnapshotResponse.Body
-	24, // 7: control.NetmapSnapshotResponse.signature:type_name -> control.Signature
+	28, // 7: control.NetmapSnapshotResponse.signature:type_name -> control.Signature
-	16, // 8: control.SetNetmapStatusRequest.body:type_name -> control.SetNetmapStatusRequest.Body
+	18, // 8: control.SetNetmapStatusRequest.body:type_name -> control.SetNetmapStatusRequest.Body
-	24, // 9: control.SetNetmapStatusRequest.signature:type_name -> control.Signature
+	28, // 9: control.SetNetmapStatusRequest.signature:type_name -> control.Signature
-	17, // 10: control.SetNetmapStatusResponse.body:type_name -> control.SetNetmapStatusResponse.Body
+	19, // 10: control.SetNetmapStatusResponse.body:type_name -> control.SetNetmapStatusResponse.Body
-	24, // 11: control.SetNetmapStatusResponse.signature:type_name -> control.Signature
+	28, // 11: control.SetNetmapStatusResponse.signature:type_name -> control.Signature
-	18, // 12: control.DropObjectsRequest.body:type_name -> control.DropObjectsRequest.Body
+	20, // 12: control.DropObjectsRequest.body:type_name -> control.DropObjectsRequest.Body
-	24, // 13: control.DropObjectsRequest.signature:type_name -> control.Signature
+	28, // 13: control.DropObjectsRequest.signature:type_name -> control.Signature
-	19, // 14: control.DropObjectsResponse.body:type_name -> control.DropObjectsResponse.Body
+	21, // 14: control.DropObjectsResponse.body:type_name -> control.DropObjectsResponse.Body
-	24, // 15: control.DropObjectsResponse.signature:type_name -> control.Signature
+	28, // 15: control.DropObjectsResponse.signature:type_name -> control.Signature
-	20, // 16: control.ListShardsRequest.body:type_name -> control.ListShardsRequest.Body
+	22, // 16: control.ListShardsRequest.body:type_name -> control.ListShardsRequest.Body
-	24, // 17: control.ListShardsRequest.signature:type_name -> control.Signature
+	28, // 17: control.ListShardsRequest.signature:type_name -> control.Signature
-	21, // 18: control.ListShardsResponse.body:type_name -> control.ListShardsResponse.Body
+	23, // 18: control.ListShardsResponse.body:type_name -> control.ListShardsResponse.Body
-	24, // 19: control.ListShardsResponse.signature:type_name -> control.Signature
+	28, // 19: control.ListShardsResponse.signature:type_name -> control.Signature
-	22, // 20: control.SetShardModeRequest.body:type_name -> control.SetShardModeRequest.Body
+	24, // 20: control.SetShardModeRequest.body:type_name -> control.SetShardModeRequest.Body
-	24, // 21: control.SetShardModeRequest.signature:type_name -> control.Signature
+	28, // 21: control.SetShardModeRequest.signature:type_name -> control.Signature
-	23, // 22: control.SetShardModeResponse.body:type_name -> control.SetShardModeResponse.Body
+	25, // 22: control.SetShardModeResponse.body:type_name -> control.SetShardModeResponse.Body
-	24, // 23: control.SetShardModeResponse.signature:type_name -> control.Signature
+	28, // 23: control.SetShardModeResponse.signature:type_name -> control.Signature
-	25, // 24: control.HealthCheckResponse.Body.netmap_status:type_name -> control.NetmapStatus
+	26, // 24: control.DumpShardRequest.body:type_name -> control.DumpShardRequest.Body
-	26, // 25: control.HealthCheckResponse.Body.health_status:type_name -> control.HealthStatus
+	28, // 25: control.DumpShardRequest.signature:type_name -> control.Signature
-	27, // 26: control.NetmapSnapshotResponse.Body.netmap:type_name -> control.Netmap
+	27, // 26: control.DumpShardResponse.body:type_name -> control.DumpShardResponse.Body
-	25, // 27: control.SetNetmapStatusRequest.Body.status:type_name -> control.NetmapStatus
+	28, // 27: control.DumpShardResponse.signature:type_name -> control.Signature
-	28, // 28: control.ListShardsResponse.Body.shards:type_name -> control.ShardInfo
+	29, // 28: control.HealthCheckResponse.Body.netmap_status:type_name -> control.NetmapStatus
-	29, // 29: control.SetShardModeRequest.Body.mode:type_name -> control.ShardMode
+	30, // 29: control.HealthCheckResponse.Body.health_status:type_name -> control.HealthStatus
-	0,  // 30: control.ControlService.HealthCheck:input_type -> control.HealthCheckRequest
+	31, // 30: control.NetmapSnapshotResponse.Body.netmap:type_name -> control.Netmap
-	2,  // 31: control.ControlService.NetmapSnapshot:input_type -> control.NetmapSnapshotRequest
+	29, // 31: control.SetNetmapStatusRequest.Body.status:type_name -> control.NetmapStatus
-	4,  // 32: control.ControlService.SetNetmapStatus:input_type -> control.SetNetmapStatusRequest
+	32, // 32: control.ListShardsResponse.Body.shards:type_name -> control.ShardInfo
-	6,  // 33: control.ControlService.DropObjects:input_type -> control.DropObjectsRequest
+	33, // 33: control.SetShardModeRequest.Body.mode:type_name -> control.ShardMode
-	8,  // 34: control.ControlService.ListShards:input_type -> control.ListShardsRequest
+	0,  // 34: control.ControlService.HealthCheck:input_type -> control.HealthCheckRequest
-	10, // 35: control.ControlService.SetShardMode:input_type -> control.SetShardModeRequest
+	2,  // 35: control.ControlService.NetmapSnapshot:input_type -> control.NetmapSnapshotRequest
-	1,  // 36: control.ControlService.HealthCheck:output_type -> control.HealthCheckResponse
+	4,  // 36: control.ControlService.SetNetmapStatus:input_type -> control.SetNetmapStatusRequest
-	3,  // 37: control.ControlService.NetmapSnapshot:output_type -> control.NetmapSnapshotResponse
+	6,  // 37: control.ControlService.DropObjects:input_type -> control.DropObjectsRequest
-	5,  // 38: control.ControlService.SetNetmapStatus:output_type -> control.SetNetmapStatusResponse
+	8,  // 38: control.ControlService.ListShards:input_type -> control.ListShardsRequest
-	7,  // 39: control.ControlService.DropObjects:output_type -> control.DropObjectsResponse
+	10, // 39: control.ControlService.SetShardMode:input_type -> control.SetShardModeRequest
-	9,  // 40: control.ControlService.ListShards:output_type -> control.ListShardsResponse
+	12, // 40: control.ControlService.DumpShard:input_type -> control.DumpShardRequest
-	11, // 41: control.ControlService.SetShardMode:output_type -> control.SetShardModeResponse
+	1,  // 41: control.ControlService.HealthCheck:output_type -> control.HealthCheckResponse
-	36, // [36:42] is the sub-list for method output_type
+	3,  // 42: control.ControlService.NetmapSnapshot:output_type -> control.NetmapSnapshotResponse
-	30, // [30:36] is the sub-list for method input_type
+	5,  // 43: control.ControlService.SetNetmapStatus:output_type -> control.SetNetmapStatusResponse
-	30, // [30:30] is the sub-list for extension type_name
+	7,  // 44: control.ControlService.DropObjects:output_type -> control.DropObjectsResponse
-	30, // [30:30] is the sub-list for extension extendee
+	9,  // 45: control.ControlService.ListShards:output_type -> control.ListShardsResponse
-	0,  // [0:30] is the sub-list for field type_name
+	11, // 46: control.ControlService.SetShardMode:output_type -> control.SetShardModeResponse
+	13, // 47: control.ControlService.DumpShard:output_type -> control.DumpShardResponse
+	41, // [41:48] is the sub-list for method output_type
+	34, // [34:41] is the sub-list for method input_type
+	34, // [34:34] is the sub-list for extension type_name
+	34, // [34:34] is the sub-list for extension extendee
+	0,  // [0:34] is the sub-list for field type_name
 }
 
 func init() { file_pkg_services_control_service_proto_init() }
@@ -1681,7 +1939,7 @@ func file_pkg_services_control_service_proto_init() {
 			}
 		}
 		file_pkg_services_control_service_proto_msgTypes[12].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*HealthCheckRequest_Body); i {
+			switch v := v.(*DumpShardRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -1693,7 +1951,7 @@ func file_pkg_services_control_service_proto_init() {
 			}
 		}
 		file_pkg_services_control_service_proto_msgTypes[13].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*HealthCheckResponse_Body); i {
+			switch v := v.(*DumpShardResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -1705,7 +1963,7 @@ func file_pkg_services_control_service_proto_init() {
 			}
 		}
 		file_pkg_services_control_service_proto_msgTypes[14].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*NetmapSnapshotRequest_Body); i {
+			switch v := v.(*HealthCheckRequest_Body); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -1717,7 +1975,7 @@ func file_pkg_services_control_service_proto_init() {
 			}
 		}
 		file_pkg_services_control_service_proto_msgTypes[15].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*NetmapSnapshotResponse_Body); i {
+			switch v := v.(*HealthCheckResponse_Body); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -1729,7 +1987,7 @@ func file_pkg_services_control_service_proto_init() {
 			}
 		}
 		file_pkg_services_control_service_proto_msgTypes[16].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*SetNetmapStatusRequest_Body); i {
+			switch v := v.(*NetmapSnapshotRequest_Body); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -1741,7 +1999,7 @@ func file_pkg_services_control_service_proto_init() {
 			}
 		}
 		file_pkg_services_control_service_proto_msgTypes[17].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*SetNetmapStatusResponse_Body); i {
+			switch v := v.(*NetmapSnapshotResponse_Body); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -1753,7 +2011,7 @@ func file_pkg_services_control_service_proto_init() {
 			}
 		}
 		file_pkg_services_control_service_proto_msgTypes[18].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*DropObjectsRequest_Body); i {
+			switch v := v.(*SetNetmapStatusRequest_Body); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -1765,7 +2023,7 @@ func file_pkg_services_control_service_proto_init() {
 			}
 		}
 		file_pkg_services_control_service_proto_msgTypes[19].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*DropObjectsResponse_Body); i {
+			switch v := v.(*SetNetmapStatusResponse_Body); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -1777,7 +2035,7 @@ func file_pkg_services_control_service_proto_init() {
 			}
 		}
 		file_pkg_services_control_service_proto_msgTypes[20].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*ListShardsRequest_Body); i {
+			switch v := v.(*DropObjectsRequest_Body); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -1789,7 +2047,7 @@ func file_pkg_services_control_service_proto_init() {
 			}
 		}
 		file_pkg_services_control_service_proto_msgTypes[21].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*ListShardsResponse_Body); i {
+			switch v := v.(*DropObjectsResponse_Body); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -1801,7 +2059,7 @@ func file_pkg_services_control_service_proto_init() {
 			}
 		}
 		file_pkg_services_control_service_proto_msgTypes[22].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*SetShardModeRequest_Body); i {
+			switch v := v.(*ListShardsRequest_Body); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -1813,6 +2071,30 @@ func file_pkg_services_control_service_proto_init() {
 			}
 		}
 		file_pkg_services_control_service_proto_msgTypes[23].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*ListShardsResponse_Body); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_pkg_services_control_service_proto_msgTypes[24].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*SetShardModeRequest_Body); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_pkg_services_control_service_proto_msgTypes[25].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*SetShardModeResponse_Body); i {
 			case 0:
 				return &v.state
@@ -1824,6 +2106,30 @@ func file_pkg_services_control_service_proto_init() {
 				return nil
 			}
 		}
+		file_pkg_services_control_service_proto_msgTypes[26].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*DumpShardRequest_Body); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_pkg_services_control_service_proto_msgTypes[27].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*DumpShardResponse_Body); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
 	}
 	type x struct{}
 	out := protoimpl.TypeBuilder{
@@ -1831,7 +2137,7 @@ func file_pkg_services_control_service_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_pkg_services_control_service_proto_rawDesc,
 			NumEnums:      0,
-			NumMessages:   24,
+			NumMessages:   28,
 			NumExtensions: 0,
 			NumServices:   1,
 		},

pkg/services/control/service.proto

@@ -25,6 +25,9 @@ service ControlService {
 
     // Sets mode of the shard.
     rpc SetShardMode (SetShardModeRequest) returns (SetShardModeResponse);
+
+    // Dump objects from the shard.
+    rpc DumpShard (DumpShardRequest) returns (DumpShardResponse);
 }
 
 // Health check request.
@@ -201,3 +204,37 @@ message SetShardModeResponse {
     // Body signature.
     Signature signature = 2;
 }
+
+// DumpShard request.
+message DumpShardRequest {
+    // Request body structure.
+    message Body {
+        // ID of the shard.
+        bytes shard_ID = 1;
+
+        // Path to the output.
+        string filepath = 2;
+
+        // Flag indicating whether object read errors should be ignored.
+        bool ignore_errors = 3;
+    }
+
+    // Body of dump shard request message.
+    Body body = 1;
+
+    // Body signature.
+    Signature signature = 2;
+}
+
+// DumpShard response.
+message DumpShardResponse {
+    // Response body structure.
+    message Body {
+    }
+
+    // Body of dump shard response message.
+    Body body = 1;
+
+    // Body signature.
+    Signature signature = 2;
+}

pkg/services/control/service_grpc.pb.go

@@ -1,4 +1,8 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.2.0
+// - protoc             v3.19.4
+// source: pkg/services/control/service.proto
 
 package control
 
@@ -30,6 +34,8 @@ type ControlServiceClient interface {
 	ListShards(ctx context.Context, in *ListShardsRequest, opts ...grpc.CallOption) (*ListShardsResponse, error)
 	// Sets mode of the shard.
 	SetShardMode(ctx context.Context, in *SetShardModeRequest, opts ...grpc.CallOption) (*SetShardModeResponse, error)
+	// Dump objects from the shard.
+	DumpShard(ctx context.Context, in *DumpShardRequest, opts ...grpc.CallOption) (*DumpShardResponse, error)
 }
 
 type controlServiceClient struct {
@@ -94,6 +100,15 @@ func (c *controlServiceClient) SetShardMode(ctx context.Context, in *SetShardMod
 	return out, nil
 }
 
+func (c *controlServiceClient) DumpShard(ctx context.Context, in *DumpShardRequest, opts ...grpc.CallOption) (*DumpShardResponse, error) {
+	out := new(DumpShardResponse)
+	err := c.cc.Invoke(ctx, "/control.ControlService/DumpShard", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 // ControlServiceServer is the server API for ControlService service.
 // All implementations should embed UnimplementedControlServiceServer
 // for forward compatibility
@@ -110,6 +125,8 @@ type ControlServiceServer interface {
 	ListShards(context.Context, *ListShardsRequest) (*ListShardsResponse, error)
 	// Sets mode of the shard.
 	SetShardMode(context.Context, *SetShardModeRequest) (*SetShardModeResponse, error)
+	// Dump objects from the shard.
+	DumpShard(context.Context, *DumpShardRequest) (*DumpShardResponse, error)
 }
 
 // UnimplementedControlServiceServer should be embedded to have forward compatible implementations.
@@ -134,6 +151,9 @@ func (UnimplementedControlServiceServer) ListShards(context.Context, *ListShards
 func (UnimplementedControlServiceServer) SetShardMode(context.Context, *SetShardModeRequest) (*SetShardModeResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method SetShardMode not implemented")
 }
+func (UnimplementedControlServiceServer) DumpShard(context.Context, *DumpShardRequest) (*DumpShardResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method DumpShard not implemented")
+}
 
 // UnsafeControlServiceServer may be embedded to opt out of forward compatibility for this service.
 // Use of this interface is not recommended, as added methods to ControlServiceServer will
@@ -254,6 +274,24 @@ func _ControlService_SetShardMode_Handler(srv interface{}, ctx context.Context,
 	return interceptor(ctx, in, info, handler)
 }
 
+func _ControlService_DumpShard_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(DumpShardRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(ControlServiceServer).DumpShard(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/control.ControlService/DumpShard",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(ControlServiceServer).DumpShard(ctx, req.(*DumpShardRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
 // ControlService_ServiceDesc is the grpc.ServiceDesc for ControlService service.
 // It's only intended for direct use with grpc.RegisterService,
 // and not to be introspected or modified (even as a copy)
@@ -285,6 +323,10 @@ var ControlService_ServiceDesc = grpc.ServiceDesc{
 			MethodName: "SetShardMode",
 			Handler:    _ControlService_SetShardMode_Handler,
 		},
+		{
+			MethodName: "DumpShard",
+			Handler:    _ControlService_DumpShard_Handler,
+		},
 	},
 	Streams:  []grpc.StreamDesc{},
 	Metadata: "pkg/services/control/service.proto",

pkg/services/control/types.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.27.1
+// 	protoc-gen-go v1.26.0
-// 	protoc        v3.19.1
+// 	protoc        v3.19.4
 // source: pkg/services/control/types.proto
 
 package control