diff --git a/internal/datanode/flow_graph_dd_node.go b/internal/datanode/flow_graph_dd_node.go
index fad96d3a00bfa3610bf3d0421fe9e042bbb36b7b..00e80f28befd7f4871e8e0826c62ab7cdfdbedf2 100644
--- a/internal/datanode/flow_graph_dd_node.go
+++ b/internal/datanode/flow_graph_dd_node.go
@@ -132,7 +132,7 @@ func (ddNode *ddNode) Operate(in []*Msg) []*Msg {
 		}
 
 	default:
-		log.Println(". default: do nothing ...")
+		//log.Println(". default: do nothing ...")
 	}
 
 	// generate binlog
diff --git a/internal/dataservice/server.go b/internal/dataservice/server.go
index 046cf7fff31567365a47aea1b258f13e425f81bf..3495643ed00e2648678442752ce9b452b32bdfdf 100644
--- a/internal/dataservice/server.go
+++ b/internal/dataservice/server.go
@@ -623,18 +623,28 @@ func (s *Server) GetSegmentStates(req *datapb.SegmentStatesRequest) (*datapb.Seg
 		return resp, nil
 	}
 
-	segmentInfo, err := s.meta.GetSegment(req.SegmentID)
-	if err != nil {
-		resp.Status.Reason = "get segment states error: " + err.Error()
-		return resp, nil
+	for _, segmentID := range req.SegmentIDs {
+		state := &datapb.SegmentStateInfo{
+			Status:    &commonpb.Status{},
+			SegmentID: segmentID,
+		}
+		segmentInfo, err := s.meta.GetSegment(segmentID)
+		if err != nil {
+			state.Status.ErrorCode = commonpb.ErrorCode_UNEXPECTED_ERROR
+			state.Status.Reason = "get segment states error: " + err.Error()
+		} else {
+			state.Status.ErrorCode = commonpb.ErrorCode_SUCCESS
+			state.State = segmentInfo.State
+			state.CreateTime = segmentInfo.OpenTime
+			state.SealedTime = segmentInfo.SealedTime
+			state.FlushedTime = segmentInfo.FlushedTime
+			state.StartPositions = segmentInfo.StartPosition
+			state.EndPositions = segmentInfo.EndPosition
+		}
+		resp.States = append(resp.States, state)
 	}
 	resp.Status.ErrorCode = commonpb.ErrorCode_SUCCESS
-	resp.State = segmentInfo.State
-	resp.CreateTime = segmentInfo.OpenTime
-	resp.SealedTime = segmentInfo.SealedTime
-	resp.FlushedTime = segmentInfo.FlushedTime
-	resp.StartPositions = segmentInfo.StartPosition
-	resp.EndPositions = segmentInfo.EndPosition
+
 	return resp, nil
 }
 
diff --git a/internal/masterservice/master_service.go b/internal/masterservice/master_service.go
index 42f59bf60107c67b4c06e7de88b8c2f29f960ebe..afe32b755f41f03d7e3f4870414e33b5cda33447 100644
--- a/internal/masterservice/master_service.go
+++ b/internal/masterservice/master_service.go
@@ -1271,7 +1271,7 @@ func (c *Core) AllocTimestamp(in *masterpb.TsoRequest) (*masterpb.TsoResponse, e
 			Count:     0,
 		}, nil
 	}
-	log.Printf("AllocTimestamp : %d", ts)
+	// log.Printf("AllocTimestamp : %d", ts)
 	return &masterpb.TsoResponse{
 		Status: &commonpb.Status{
 			ErrorCode: commonpb.ErrorCode_SUCCESS,
diff --git a/internal/proto/data_service.proto b/internal/proto/data_service.proto
index 708ca5001b158628875d8441e45a62dfc39d036c..f2294f9cd1bb34b26cf016d6934ae3f51ec432cb 100644
--- a/internal/proto/data_service.proto
+++ b/internal/proto/data_service.proto
@@ -82,17 +82,23 @@ enum SegmentState {
 
 message SegmentStatesRequest {
   common.MsgBase base = 1;
-  int64  segmentID = 2;
+  repeated int64  segmentIDs = 2;
+}
+
+message SegmentStateInfo {
+  int64 segmentID = 1;
+  SegmentState state = 2;
+  uint64 create_time = 3;
+  uint64 sealed_time = 4;
+  uint64 flushed_time = 5;
+  repeated internal.MsgPosition start_positions = 6;
+  repeated internal.MsgPosition end_positions = 7;
+  common.Status status = 8;
 }
 
 message SegmentStatesResponse {
-  SegmentState state = 1;
-  uint64 create_time = 2;
-  uint64 sealed_time = 3;
-  uint64 flushed_time = 4;
-  repeated internal.MsgPosition start_positions = 5;
-  repeated internal.MsgPosition end_positions = 6;
-  common.Status status = 7;
+  common.Status status = 1;
+  repeated SegmentStateInfo states = 2;
 }
 
 message InsertBinlogPathRequest {
@@ -128,15 +134,15 @@ message FlushSegRequest {
 }
 
 message SegmentInfo {
-  int64 segmentID=1;
-  int64 collectionID =2;
-  int64 partitionID=3;
+  int64 segmentID = 1;
+  int64 collectionID = 2;
+  int64 partitionID = 3;
   repeated string insert_channels = 4;
-  uint64 open_time=5;
+  uint64 open_time = 5;
   uint64 sealed_time = 6;
   uint64 flushed_time = 7;
-  int64 num_rows=8;
-  int64 mem_size=9;
+  int64 num_rows = 8;
+  int64 mem_size = 9;
   SegmentState state = 10;
   repeated internal.MsgPosition start_position = 11;
   repeated internal.MsgPosition end_position = 12;
@@ -171,41 +177,41 @@ message PartitionStatsResponse {
 }
 
 message FieldFlushMeta {
-    int64 fieldID = 1;
-    repeated string binlog_paths = 2;
+  int64 fieldID = 1;
+  repeated string binlog_paths = 2;
 }
 
 message SegmentFlushMeta{
-    int64 segmentID = 1;
-    bool is_flushed = 2;
-    repeated FieldFlushMeta fields = 5;
+  int64 segmentID = 1;
+  bool is_flushed = 2;
+  repeated FieldFlushMeta fields = 5;
 }
 
 message DDLFlushMeta {
-    int64 collectionID = 1;
-    repeated string binlog_paths = 2;
+  int64 collectionID = 1;
+  repeated string binlog_paths = 2;
 }
 
 service DataService {
 
-   rpc RegisterNode(RegisterNodeRequest) returns (RegisterNodeResponse) {}
-   rpc Flush(FlushRequest) returns (common.Status) {}
+  rpc RegisterNode(RegisterNodeRequest) returns (RegisterNodeResponse) {}
+  rpc Flush(FlushRequest) returns (common.Status) {}
 
-   rpc AssignSegmentID(AssignSegIDRequest) returns (AssignSegIDResponse) {}
-   rpc ShowSegments(ShowSegmentRequest) returns (ShowSegmentResponse) {}
+  rpc AssignSegmentID(AssignSegIDRequest) returns (AssignSegIDResponse) {}
+  rpc ShowSegments(ShowSegmentRequest) returns (ShowSegmentResponse) {}
 
-   rpc GetSegmentStates(SegmentStatesRequest) returns (SegmentStatesResponse) {}
-   rpc GetInsertBinlogPaths(InsertBinlogPathRequest) returns (InsertBinlogPathsResponse) {}
+  rpc GetSegmentStates(SegmentStatesRequest) returns (SegmentStatesResponse) {}
+  rpc GetInsertBinlogPaths(InsertBinlogPathRequest) returns (InsertBinlogPathsResponse) {}
 
-   rpc GetInsertChannels(InsertChannelRequest) returns (internal.StringList) {}
-   rpc GetCollectionStatistics(CollectionStatsRequest) returns (CollectionStatsResponse) {}
-   rpc GetPartitionStatistics(PartitionStatsRequest) returns (PartitionStatsResponse) {}
+  rpc GetInsertChannels(InsertChannelRequest) returns (internal.StringList) {}
+  rpc GetCollectionStatistics(CollectionStatsRequest) returns (CollectionStatsResponse) {}
+  rpc GetPartitionStatistics(PartitionStatsRequest) returns (PartitionStatsResponse) {}
 
-   rpc GetComponentStates(common.Empty) returns (internal.ComponentStates) {}
-   rpc GetTimeTickChannel(common.Empty) returns(milvus.StringResponse) {}
-   rpc GetStatisticsChannel(common.Empty) returns(milvus.StringResponse){}
+  rpc GetComponentStates(common.Empty) returns (internal.ComponentStates) {}
+  rpc GetTimeTickChannel(common.Empty) returns(milvus.StringResponse) {}
+  rpc GetStatisticsChannel(common.Empty) returns(milvus.StringResponse){}
 
-   rpc GetSegmentInfoChannel(common.Empty) returns (milvus.StringResponse){}
+  rpc GetSegmentInfoChannel(common.Empty) returns (milvus.StringResponse){}
 }
 
 service DataNode {
diff --git a/internal/proto/datapb/data_service.pb.go b/internal/proto/datapb/data_service.pb.go
index cb82fcd41f6735a98f31a2284ad37e4104b87f56..bbb8772ace578a79a6f4d87d77f8842f87dbf103 100644
--- a/internal/proto/datapb/data_service.pb.go
+++ b/internal/proto/datapb/data_service.pb.go
@@ -606,7 +606,7 @@ func (m *ShowSegmentResponse) GetStatus() *commonpb.Status {
 
 type SegmentStatesRequest struct {
 	Base                 *commonpb.MsgBase `protobuf:"bytes,1,opt,name=base,proto3" json:"base,omitempty"`
-	SegmentID            int64             `protobuf:"varint,2,opt,name=segmentID,proto3" json:"segmentID,omitempty"`
+	SegmentIDs           []int64           `protobuf:"varint,2,rep,packed,name=segmentIDs,proto3" json:"segmentIDs,omitempty"`
 	XXX_NoUnkeyedLiteral struct{}          `json:"-"`
 	XXX_unrecognized     []byte            `json:"-"`
 	XXX_sizecache        int32             `json:"-"`
@@ -644,93 +644,141 @@ func (m *SegmentStatesRequest) GetBase() *commonpb.MsgBase {
 	return nil
 }
 
-func (m *SegmentStatesRequest) GetSegmentID() int64 {
+func (m *SegmentStatesRequest) GetSegmentIDs() []int64 {
 	if m != nil {
-		return m.SegmentID
+		return m.SegmentIDs
 	}
-	return 0
+	return nil
 }
 
-type SegmentStatesResponse struct {
-	State                SegmentState               `protobuf:"varint,1,opt,name=state,proto3,enum=milvus.proto.data.SegmentState" json:"state,omitempty"`
-	CreateTime           uint64                     `protobuf:"varint,2,opt,name=create_time,json=createTime,proto3" json:"create_time,omitempty"`
-	SealedTime           uint64                     `protobuf:"varint,3,opt,name=sealed_time,json=sealedTime,proto3" json:"sealed_time,omitempty"`
-	FlushedTime          uint64                     `protobuf:"varint,4,opt,name=flushed_time,json=flushedTime,proto3" json:"flushed_time,omitempty"`
-	StartPositions       []*internalpb2.MsgPosition `protobuf:"bytes,5,rep,name=start_positions,json=startPositions,proto3" json:"start_positions,omitempty"`
-	EndPositions         []*internalpb2.MsgPosition `protobuf:"bytes,6,rep,name=end_positions,json=endPositions,proto3" json:"end_positions,omitempty"`
-	Status               *commonpb.Status           `protobuf:"bytes,7,opt,name=status,proto3" json:"status,omitempty"`
+type SegmentStateInfo struct {
+	SegmentID            int64                      `protobuf:"varint,1,opt,name=segmentID,proto3" json:"segmentID,omitempty"`
+	State                SegmentState               `protobuf:"varint,2,opt,name=state,proto3,enum=milvus.proto.data.SegmentState" json:"state,omitempty"`
+	CreateTime           uint64                     `protobuf:"varint,3,opt,name=create_time,json=createTime,proto3" json:"create_time,omitempty"`
+	SealedTime           uint64                     `protobuf:"varint,4,opt,name=sealed_time,json=sealedTime,proto3" json:"sealed_time,omitempty"`
+	FlushedTime          uint64                     `protobuf:"varint,5,opt,name=flushed_time,json=flushedTime,proto3" json:"flushed_time,omitempty"`
+	StartPositions       []*internalpb2.MsgPosition `protobuf:"bytes,6,rep,name=start_positions,json=startPositions,proto3" json:"start_positions,omitempty"`
+	EndPositions         []*internalpb2.MsgPosition `protobuf:"bytes,7,rep,name=end_positions,json=endPositions,proto3" json:"end_positions,omitempty"`
+	Status               *commonpb.Status           `protobuf:"bytes,8,opt,name=status,proto3" json:"status,omitempty"`
 	XXX_NoUnkeyedLiteral struct{}                   `json:"-"`
 	XXX_unrecognized     []byte                     `json:"-"`
 	XXX_sizecache        int32                      `json:"-"`
 }
 
-func (m *SegmentStatesResponse) Reset()         { *m = SegmentStatesResponse{} }
-func (m *SegmentStatesResponse) String() string { return proto.CompactTextString(m) }
-func (*SegmentStatesResponse) ProtoMessage()    {}
-func (*SegmentStatesResponse) Descriptor() ([]byte, []int) {
+func (m *SegmentStateInfo) Reset()         { *m = SegmentStateInfo{} }
+func (m *SegmentStateInfo) String() string { return proto.CompactTextString(m) }
+func (*SegmentStateInfo) ProtoMessage()    {}
+func (*SegmentStateInfo) Descriptor() ([]byte, []int) {
 	return fileDescriptor_3385cd32ad6cfe64, []int{10}
 }
 
-func (m *SegmentStatesResponse) XXX_Unmarshal(b []byte) error {
-	return xxx_messageInfo_SegmentStatesResponse.Unmarshal(m, b)
+func (m *SegmentStateInfo) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_SegmentStateInfo.Unmarshal(m, b)
 }
-func (m *SegmentStatesResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
-	return xxx_messageInfo_SegmentStatesResponse.Marshal(b, m, deterministic)
+func (m *SegmentStateInfo) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_SegmentStateInfo.Marshal(b, m, deterministic)
 }
-func (m *SegmentStatesResponse) XXX_Merge(src proto.Message) {
-	xxx_messageInfo_SegmentStatesResponse.Merge(m, src)
+func (m *SegmentStateInfo) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_SegmentStateInfo.Merge(m, src)
 }
-func (m *SegmentStatesResponse) XXX_Size() int {
-	return xxx_messageInfo_SegmentStatesResponse.Size(m)
+func (m *SegmentStateInfo) XXX_Size() int {
+	return xxx_messageInfo_SegmentStateInfo.Size(m)
 }
-func (m *SegmentStatesResponse) XXX_DiscardUnknown() {
-	xxx_messageInfo_SegmentStatesResponse.DiscardUnknown(m)
+func (m *SegmentStateInfo) XXX_DiscardUnknown() {
+	xxx_messageInfo_SegmentStateInfo.DiscardUnknown(m)
 }
 
-var xxx_messageInfo_SegmentStatesResponse proto.InternalMessageInfo
+var xxx_messageInfo_SegmentStateInfo proto.InternalMessageInfo
 
-func (m *SegmentStatesResponse) GetState() SegmentState {
+func (m *SegmentStateInfo) GetSegmentID() int64 {
+	if m != nil {
+		return m.SegmentID
+	}
+	return 0
+}
+
+func (m *SegmentStateInfo) GetState() SegmentState {
 	if m != nil {
 		return m.State
 	}
 	return SegmentState_SegmentNone
 }
 
-func (m *SegmentStatesResponse) GetCreateTime() uint64 {
+func (m *SegmentStateInfo) GetCreateTime() uint64 {
 	if m != nil {
 		return m.CreateTime
 	}
 	return 0
 }
 
-func (m *SegmentStatesResponse) GetSealedTime() uint64 {
+func (m *SegmentStateInfo) GetSealedTime() uint64 {
 	if m != nil {
 		return m.SealedTime
 	}
 	return 0
 }
 
-func (m *SegmentStatesResponse) GetFlushedTime() uint64 {
+func (m *SegmentStateInfo) GetFlushedTime() uint64 {
 	if m != nil {
 		return m.FlushedTime
 	}
 	return 0
 }
 
-func (m *SegmentStatesResponse) GetStartPositions() []*internalpb2.MsgPosition {
+func (m *SegmentStateInfo) GetStartPositions() []*internalpb2.MsgPosition {
 	if m != nil {
 		return m.StartPositions
 	}
 	return nil
 }
 
-func (m *SegmentStatesResponse) GetEndPositions() []*internalpb2.MsgPosition {
+func (m *SegmentStateInfo) GetEndPositions() []*internalpb2.MsgPosition {
 	if m != nil {
 		return m.EndPositions
 	}
 	return nil
 }
 
+func (m *SegmentStateInfo) GetStatus() *commonpb.Status {
+	if m != nil {
+		return m.Status
+	}
+	return nil
+}
+
+type SegmentStatesResponse struct {
+	Status               *commonpb.Status    `protobuf:"bytes,1,opt,name=status,proto3" json:"status,omitempty"`
+	States               []*SegmentStateInfo `protobuf:"bytes,2,rep,name=states,proto3" json:"states,omitempty"`
+	XXX_NoUnkeyedLiteral struct{}            `json:"-"`
+	XXX_unrecognized     []byte              `json:"-"`
+	XXX_sizecache        int32               `json:"-"`
+}
+
+func (m *SegmentStatesResponse) Reset()         { *m = SegmentStatesResponse{} }
+func (m *SegmentStatesResponse) String() string { return proto.CompactTextString(m) }
+func (*SegmentStatesResponse) ProtoMessage()    {}
+func (*SegmentStatesResponse) Descriptor() ([]byte, []int) {
+	return fileDescriptor_3385cd32ad6cfe64, []int{11}
+}
+
+func (m *SegmentStatesResponse) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_SegmentStatesResponse.Unmarshal(m, b)
+}
+func (m *SegmentStatesResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_SegmentStatesResponse.Marshal(b, m, deterministic)
+}
+func (m *SegmentStatesResponse) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_SegmentStatesResponse.Merge(m, src)
+}
+func (m *SegmentStatesResponse) XXX_Size() int {
+	return xxx_messageInfo_SegmentStatesResponse.Size(m)
+}
+func (m *SegmentStatesResponse) XXX_DiscardUnknown() {
+	xxx_messageInfo_SegmentStatesResponse.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_SegmentStatesResponse proto.InternalMessageInfo
+
 func (m *SegmentStatesResponse) GetStatus() *commonpb.Status {
 	if m != nil {
 		return m.Status
@@ -738,6 +786,13 @@ func (m *SegmentStatesResponse) GetStatus() *commonpb.Status {
 	return nil
 }
 
+func (m *SegmentStatesResponse) GetStates() []*SegmentStateInfo {
+	if m != nil {
+		return m.States
+	}
+	return nil
+}
+
 type InsertBinlogPathRequest struct {
 	Base                 *commonpb.MsgBase `protobuf:"bytes,1,opt,name=base,proto3" json:"base,omitempty"`
 	SegmentID            int64             `protobuf:"varint,2,opt,name=segmentID,proto3" json:"segmentID,omitempty"`
@@ -750,7 +805,7 @@ func (m *InsertBinlogPathRequest) Reset()         { *m = InsertBinlogPathRequest
 func (m *InsertBinlogPathRequest) String() string { return proto.CompactTextString(m) }
 func (*InsertBinlogPathRequest) ProtoMessage()    {}
 func (*InsertBinlogPathRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_3385cd32ad6cfe64, []int{11}
+	return fileDescriptor_3385cd32ad6cfe64, []int{12}
 }
 
 func (m *InsertBinlogPathRequest) XXX_Unmarshal(b []byte) error {
@@ -798,7 +853,7 @@ func (m *InsertBinlogPathsResponse) Reset()         { *m = InsertBinlogPathsResp
 func (m *InsertBinlogPathsResponse) String() string { return proto.CompactTextString(m) }
 func (*InsertBinlogPathsResponse) ProtoMessage()    {}
 func (*InsertBinlogPathsResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_3385cd32ad6cfe64, []int{12}
+	return fileDescriptor_3385cd32ad6cfe64, []int{13}
 }
 
 func (m *InsertBinlogPathsResponse) XXX_Unmarshal(b []byte) error {
@@ -853,7 +908,7 @@ func (m *InsertChannelRequest) Reset()         { *m = InsertChannelRequest{} }
 func (m *InsertChannelRequest) String() string { return proto.CompactTextString(m) }
 func (*InsertChannelRequest) ProtoMessage()    {}
 func (*InsertChannelRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_3385cd32ad6cfe64, []int{13}
+	return fileDescriptor_3385cd32ad6cfe64, []int{14}
 }
 
 func (m *InsertChannelRequest) XXX_Unmarshal(b []byte) error {
@@ -907,7 +962,7 @@ func (m *WatchDmChannelRequest) Reset()         { *m = WatchDmChannelRequest{} }
 func (m *WatchDmChannelRequest) String() string { return proto.CompactTextString(m) }
 func (*WatchDmChannelRequest) ProtoMessage()    {}
 func (*WatchDmChannelRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_3385cd32ad6cfe64, []int{14}
+	return fileDescriptor_3385cd32ad6cfe64, []int{15}
 }
 
 func (m *WatchDmChannelRequest) XXX_Unmarshal(b []byte) error {
@@ -956,7 +1011,7 @@ func (m *FlushSegRequest) Reset()         { *m = FlushSegRequest{} }
 func (m *FlushSegRequest) String() string { return proto.CompactTextString(m) }
 func (*FlushSegRequest) ProtoMessage()    {}
 func (*FlushSegRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_3385cd32ad6cfe64, []int{15}
+	return fileDescriptor_3385cd32ad6cfe64, []int{16}
 }
 
 func (m *FlushSegRequest) XXX_Unmarshal(b []byte) error {
@@ -1027,7 +1082,7 @@ func (m *SegmentInfo) Reset()         { *m = SegmentInfo{} }
 func (m *SegmentInfo) String() string { return proto.CompactTextString(m) }
 func (*SegmentInfo) ProtoMessage()    {}
 func (*SegmentInfo) Descriptor() ([]byte, []int) {
-	return fileDescriptor_3385cd32ad6cfe64, []int{16}
+	return fileDescriptor_3385cd32ad6cfe64, []int{17}
 }
 
 func (m *SegmentInfo) XXX_Unmarshal(b []byte) error {
@@ -1144,7 +1199,7 @@ func (m *SegmentMsg) Reset()         { *m = SegmentMsg{} }
 func (m *SegmentMsg) String() string { return proto.CompactTextString(m) }
 func (*SegmentMsg) ProtoMessage()    {}
 func (*SegmentMsg) Descriptor() ([]byte, []int) {
-	return fileDescriptor_3385cd32ad6cfe64, []int{17}
+	return fileDescriptor_3385cd32ad6cfe64, []int{18}
 }
 
 func (m *SegmentMsg) XXX_Unmarshal(b []byte) error {
@@ -1192,7 +1247,7 @@ func (m *CollectionStatsRequest) Reset()         { *m = CollectionStatsRequest{}
 func (m *CollectionStatsRequest) String() string { return proto.CompactTextString(m) }
 func (*CollectionStatsRequest) ProtoMessage()    {}
 func (*CollectionStatsRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_3385cd32ad6cfe64, []int{18}
+	return fileDescriptor_3385cd32ad6cfe64, []int{19}
 }
 
 func (m *CollectionStatsRequest) XXX_Unmarshal(b []byte) error {
@@ -1246,7 +1301,7 @@ func (m *CollectionStatsResponse) Reset()         { *m = CollectionStatsResponse
 func (m *CollectionStatsResponse) String() string { return proto.CompactTextString(m) }
 func (*CollectionStatsResponse) ProtoMessage()    {}
 func (*CollectionStatsResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_3385cd32ad6cfe64, []int{19}
+	return fileDescriptor_3385cd32ad6cfe64, []int{20}
 }
 
 func (m *CollectionStatsResponse) XXX_Unmarshal(b []byte) error {
@@ -1295,7 +1350,7 @@ func (m *PartitionStatsRequest) Reset()         { *m = PartitionStatsRequest{} }
 func (m *PartitionStatsRequest) String() string { return proto.CompactTextString(m) }
 func (*PartitionStatsRequest) ProtoMessage()    {}
 func (*PartitionStatsRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_3385cd32ad6cfe64, []int{20}
+	return fileDescriptor_3385cd32ad6cfe64, []int{21}
 }
 
 func (m *PartitionStatsRequest) XXX_Unmarshal(b []byte) error {
@@ -1356,7 +1411,7 @@ func (m *PartitionStatsResponse) Reset()         { *m = PartitionStatsResponse{}
 func (m *PartitionStatsResponse) String() string { return proto.CompactTextString(m) }
 func (*PartitionStatsResponse) ProtoMessage()    {}
 func (*PartitionStatsResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_3385cd32ad6cfe64, []int{21}
+	return fileDescriptor_3385cd32ad6cfe64, []int{22}
 }
 
 func (m *PartitionStatsResponse) XXX_Unmarshal(b []byte) error {
@@ -1403,7 +1458,7 @@ func (m *FieldFlushMeta) Reset()         { *m = FieldFlushMeta{} }
 func (m *FieldFlushMeta) String() string { return proto.CompactTextString(m) }
 func (*FieldFlushMeta) ProtoMessage()    {}
 func (*FieldFlushMeta) Descriptor() ([]byte, []int) {
-	return fileDescriptor_3385cd32ad6cfe64, []int{22}
+	return fileDescriptor_3385cd32ad6cfe64, []int{23}
 }
 
 func (m *FieldFlushMeta) XXX_Unmarshal(b []byte) error {
@@ -1451,7 +1506,7 @@ func (m *SegmentFlushMeta) Reset()         { *m = SegmentFlushMeta{} }
 func (m *SegmentFlushMeta) String() string { return proto.CompactTextString(m) }
 func (*SegmentFlushMeta) ProtoMessage()    {}
 func (*SegmentFlushMeta) Descriptor() ([]byte, []int) {
-	return fileDescriptor_3385cd32ad6cfe64, []int{23}
+	return fileDescriptor_3385cd32ad6cfe64, []int{24}
 }
 
 func (m *SegmentFlushMeta) XXX_Unmarshal(b []byte) error {
@@ -1505,7 +1560,7 @@ func (m *DDLFlushMeta) Reset()         { *m = DDLFlushMeta{} }
 func (m *DDLFlushMeta) String() string { return proto.CompactTextString(m) }
 func (*DDLFlushMeta) ProtoMessage()    {}
 func (*DDLFlushMeta) Descriptor() ([]byte, []int) {
-	return fileDescriptor_3385cd32ad6cfe64, []int{24}
+	return fileDescriptor_3385cd32ad6cfe64, []int{25}
 }
 
 func (m *DDLFlushMeta) XXX_Unmarshal(b []byte) error {
@@ -1552,6 +1607,7 @@ func init() {
 	proto.RegisterType((*ShowSegmentRequest)(nil), "milvus.proto.data.ShowSegmentRequest")
 	proto.RegisterType((*ShowSegmentResponse)(nil), "milvus.proto.data.ShowSegmentResponse")
 	proto.RegisterType((*SegmentStatesRequest)(nil), "milvus.proto.data.SegmentStatesRequest")
+	proto.RegisterType((*SegmentStateInfo)(nil), "milvus.proto.data.SegmentStateInfo")
 	proto.RegisterType((*SegmentStatesResponse)(nil), "milvus.proto.data.SegmentStatesResponse")
 	proto.RegisterType((*InsertBinlogPathRequest)(nil), "milvus.proto.data.InsertBinlogPathRequest")
 	proto.RegisterType((*InsertBinlogPathsResponse)(nil), "milvus.proto.data.InsertBinlogPathsResponse")
@@ -1572,105 +1628,107 @@ func init() {
 func init() { proto.RegisterFile("data_service.proto", fileDescriptor_3385cd32ad6cfe64) }
 
 var fileDescriptor_3385cd32ad6cfe64 = []byte{
-	// 1560 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xc4, 0x58, 0x4f, 0x6f, 0x1b, 0x45,
-	0x14, 0xcf, 0x7a, 0xed, 0xc4, 0x7e, 0x76, 0x1c, 0x77, 0xf2, 0xa7, 0xae, 0x5b, 0xda, 0x64, 0x51,
-	0x9b, 0xb4, 0x82, 0x04, 0xa5, 0x82, 0xc2, 0x05, 0xd1, 0xd4, 0x69, 0x64, 0xb5, 0x89, 0xa2, 0x71,
-	0xa1, 0x22, 0x17, 0x6b, 0x6d, 0x4f, 0x9c, 0x01, 0xef, 0xae, 0xd9, 0x19, 0x37, 0x69, 0x2e, 0x20,
-	0x0e, 0x20, 0x71, 0x29, 0x27, 0x0e, 0x70, 0x41, 0x42, 0x7c, 0x0e, 0xbe, 0x02, 0x9f, 0x87, 0x03,
-	0x42, 0x3b, 0x33, 0xfb, 0xcf, 0x5e, 0xc7, 0xc6, 0xa4, 0xf4, 0xe6, 0x79, 0xfb, 0x9b, 0xf7, 0xde,
-	0xbc, 0x3f, 0xbf, 0x37, 0x63, 0x40, 0x6d, 0x93, 0x9b, 0x0d, 0x46, 0xdc, 0x17, 0xb4, 0x45, 0x36,
-	0x7b, 0xae, 0xc3, 0x1d, 0x74, 0xc5, 0xa2, 0xdd, 0x17, 0x7d, 0x26, 0x57, 0x9b, 0x1e, 0xa0, 0x52,
-	0x68, 0x39, 0x96, 0xe5, 0xd8, 0x52, 0x54, 0x29, 0x52, 0x9b, 0x13, 0xd7, 0x36, 0xbb, 0x6a, 0x5d,
-	0x88, 0x6e, 0x30, 0xbe, 0x86, 0x45, 0x4c, 0x3a, 0x94, 0x71, 0xe2, 0x1e, 0x38, 0x6d, 0x82, 0xc9,
-	0x57, 0x7d, 0xc2, 0x38, 0x7a, 0x0f, 0xd2, 0x4d, 0x93, 0x91, 0xb2, 0xb6, 0xaa, 0x6d, 0xe4, 0xb7,
-	0x6f, 0x6c, 0xc6, 0x8c, 0x28, 0xf5, 0xfb, 0xac, 0xb3, 0x63, 0x32, 0x82, 0x05, 0x12, 0x7d, 0x00,
-	0x73, 0x66, 0xbb, 0xed, 0x12, 0xc6, 0xca, 0xa9, 0x0b, 0x36, 0x3d, 0x94, 0x18, 0xec, 0x83, 0x8d,
-	0x57, 0x1a, 0x2c, 0xc5, 0x3d, 0x60, 0x3d, 0xc7, 0x66, 0x04, 0xed, 0x40, 0x9e, 0xda, 0x94, 0x37,
-	0x7a, 0xa6, 0x6b, 0x5a, 0x4c, 0x79, 0xb2, 0x16, 0x57, 0x1a, 0x1c, 0xad, 0x66, 0x53, 0x7e, 0x28,
-	0x80, 0x18, 0x68, 0xf0, 0x1b, 0xdd, 0x87, 0x59, 0xc6, 0x4d, 0xde, 0xf7, 0x7d, 0xba, 0x9e, 0xe8,
-	0x53, 0x5d, 0x40, 0xb0, 0x82, 0x1a, 0x7f, 0x6a, 0x50, 0xa8, 0x93, 0x4e, 0xad, 0xea, 0x07, 0x63,
-	0x09, 0x32, 0x2d, 0xa7, 0x6f, 0x73, 0xe1, 0xc3, 0x3c, 0x96, 0x0b, 0xb4, 0x0a, 0xf9, 0xd6, 0x89,
-	0x69, 0xdb, 0xa4, 0x7b, 0x60, 0x5a, 0x44, 0x18, 0xc8, 0xe1, 0xa8, 0x08, 0x19, 0x50, 0x68, 0x39,
-	0xdd, 0x2e, 0x69, 0x71, 0xea, 0xd8, 0xb5, 0x6a, 0x59, 0x5f, 0xd5, 0x36, 0x74, 0x1c, 0x93, 0x79,
-	0x5a, 0x7a, 0xa6, 0xcb, 0xa9, 0x82, 0xa4, 0x05, 0x24, 0x2a, 0x42, 0xd7, 0x21, 0xe7, 0xed, 0x68,
-	0xd8, 0x9e, 0x95, 0x8c, 0xb0, 0x92, 0xf5, 0x04, 0xc2, 0xc4, 0x6d, 0x28, 0x06, 0x58, 0x89, 0x98,
-	0x15, 0x88, 0xf9, 0x40, 0xea, 0xc1, 0x8c, 0x1f, 0x35, 0x40, 0x0f, 0x19, 0xa3, 0x1d, 0x3b, 0x76,
-	0xb0, 0x15, 0x98, 0xb5, 0x9d, 0x36, 0xa9, 0x55, 0xc5, 0xc9, 0x74, 0xac, 0x56, 0x9e, 0xc9, 0x1e,
-	0x21, 0x6e, 0xc3, 0x75, 0xba, 0xfe, 0xc1, 0xb2, 0x9e, 0x00, 0x3b, 0x5d, 0x82, 0x76, 0x61, 0x9e,
-	0x45, 0x94, 0xb0, 0xb2, 0xbe, 0xaa, 0x6f, 0xe4, 0xb7, 0x6f, 0x6d, 0x0e, 0x15, 0xe2, 0x66, 0xd4,
-	0x18, 0x8e, 0xef, 0x32, 0xfe, 0x48, 0xc1, 0x82, 0xf8, 0x2e, 0xfd, 0xb2, 0x88, 0x2d, 0x02, 0x2d,
-	0x40, 0xca, 0x1d, 0xb9, 0x98, 0x20, 0xd0, 0x41, 0x82, 0xf4, 0x68, 0x82, 0x06, 0xc3, 0x9f, 0x1e,
-	0x1f, 0xfe, 0xcc, 0x70, 0xf8, 0x6f, 0x41, 0x9e, 0x9c, 0xf5, 0xa8, 0x4b, 0x1a, 0x9c, 0xaa, 0xf0,
-	0xa6, 0x31, 0x48, 0xd1, 0x33, 0x6a, 0x91, 0x48, 0x8d, 0xcd, 0x4d, 0x5c, 0x63, 0xf1, 0xa4, 0x66,
-	0xc7, 0x26, 0x35, 0x97, 0x94, 0xd4, 0x9f, 0x35, 0x58, 0x8c, 0x25, 0x55, 0x35, 0xce, 0x01, 0x94,
-	0x58, 0x3c, 0xb0, 0x5e, 0xf7, 0x78, 0x39, 0x32, 0x46, 0xe5, 0x28, 0x84, 0xe2, 0xa1, 0xbd, 0xd3,
-	0x35, 0xd1, 0x19, 0x14, 0x1e, 0x77, 0xfb, 0xec, 0x64, 0x7a, 0x42, 0x41, 0x90, 0x6e, 0x37, 0x6b,
-	0x55, 0x61, 0x54, 0xc7, 0xe2, 0xf7, 0x24, 0x29, 0x35, 0x7e, 0xd5, 0x00, 0xd5, 0x4f, 0x9c, 0xd3,
-	0x3a, 0xe9, 0x88, 0x03, 0x4d, 0xed, 0xc0, 0xa0, 0xb1, 0xd4, 0xf8, 0xfa, 0xd1, 0x87, 0xeb, 0xc7,
-	0x3f, 0x46, 0x3a, 0x3c, 0x86, 0xf1, 0x05, 0x2c, 0xc6, 0x3c, 0x54, 0x89, 0xbb, 0x09, 0xc0, 0xa4,
-	0xa8, 0x56, 0x95, 0x29, 0xd3, 0x71, 0x44, 0x32, 0x5d, 0x22, 0x8e, 0x61, 0x49, 0xd9, 0xf1, 0x3e,
-	0x10, 0x36, 0x7d, 0x3c, 0x6e, 0x40, 0x2e, 0x70, 0x46, 0x05, 0x23, 0x14, 0x18, 0x7f, 0xa7, 0x60,
-	0x79, 0xc0, 0x90, 0x3a, 0xd6, 0xfb, 0x90, 0xf1, 0x7c, 0x91, 0xa6, 0x8a, 0xa3, 0x88, 0x22, 0xd8,
-	0x88, 0x25, 0xda, 0x6b, 0xbc, 0x96, 0x4b, 0x4c, 0xae, 0x1a, 0x2f, 0x25, 0x1b, 0x4f, 0x8a, 0x44,
-	0xe3, 0xdd, 0x82, 0x3c, 0x23, 0x66, 0x97, 0xb4, 0x25, 0x40, 0x97, 0x00, 0x29, 0x12, 0x80, 0x35,
-	0x28, 0x1c, 0x7b, 0x35, 0xe8, 0x23, 0xd2, 0x02, 0x91, 0x57, 0x32, 0x01, 0x79, 0x02, 0x0b, 0x8c,
-	0x9b, 0x2e, 0x6f, 0xf4, 0x1c, 0x26, 0x32, 0xc6, 0xca, 0x99, 0xa4, 0x56, 0x09, 0x06, 0xcd, 0x3e,
-	0xeb, 0x1c, 0x2a, 0x28, 0x2e, 0x8a, 0xad, 0xfe, 0x92, 0xa1, 0x3d, 0x98, 0x27, 0x76, 0x3b, 0xa2,
-	0x6a, 0x76, 0x62, 0x55, 0x05, 0x62, 0xb7, 0x43, 0x45, 0xd3, 0x50, 0x8a, 0x41, 0xe1, 0x6a, 0xcd,
-	0x66, 0xc4, 0xe5, 0x3b, 0xd4, 0xee, 0x3a, 0x9d, 0x43, 0x93, 0x9f, 0xbc, 0xae, 0x5c, 0xff, 0xae,
-	0xc1, 0xb5, 0x41, 0x5b, 0x61, 0xbe, 0x2b, 0x90, 0x3d, 0xa6, 0xa4, 0xdb, 0x0e, 0x8b, 0x38, 0x58,
-	0xa3, 0x07, 0x90, 0xe9, 0x79, 0xe0, 0x72, 0x4a, 0x84, 0x66, 0xd4, 0x38, 0xaf, 0x73, 0x97, 0xda,
-	0x9d, 0xa7, 0x94, 0x71, 0x2c, 0xf1, 0x91, 0x90, 0xe8, 0x93, 0x87, 0xe4, 0x1b, 0x0d, 0x96, 0xa4,
-	0x9f, 0x8f, 0xe4, 0xb4, 0x78, 0xbd, 0x6c, 0x94, 0x30, 0xdf, 0x0d, 0x0b, 0x96, 0x9f, 0x9b, 0xbc,
-	0x75, 0x52, 0xb5, 0xfe, 0xb3, 0x0b, 0x9e, 0xb9, 0x70, 0xe8, 0xc9, 0x10, 0xe6, 0x70, 0x4c, 0x66,
-	0xfc, 0xa2, 0xc1, 0x82, 0xe0, 0xdd, 0x3a, 0xe9, 0xfc, 0xef, 0x87, 0x1d, 0x20, 0xb0, 0xf4, 0x20,
-	0x81, 0x19, 0x7f, 0xe9, 0x90, 0x57, 0xad, 0x5e, 0xb3, 0x8f, 0x9d, 0x78, 0x95, 0x69, 0x03, 0x55,
-	0x76, 0x49, 0xfc, 0xbb, 0x0e, 0x0b, 0x54, 0x94, 0x40, 0x43, 0x05, 0x4a, 0x3a, 0x96, 0xc3, 0x45,
-	0x1a, 0xad, 0x0c, 0x31, 0x92, 0x9d, 0x1e, 0xb1, 0x25, 0x55, 0x64, 0x04, 0x55, 0x64, 0x3d, 0x41,
-	0x12, 0xd7, 0xcc, 0x8e, 0xe5, 0x9a, 0xb9, 0x61, 0xae, 0xb9, 0x06, 0x59, 0xbb, 0x6f, 0x35, 0x5c,
-	0xe7, 0x94, 0x89, 0x91, 0xaf, 0xe3, 0x39, 0xbb, 0x6f, 0x61, 0xe7, 0x94, 0x79, 0x9f, 0x2c, 0x62,
-	0x35, 0x18, 0x3d, 0x97, 0xb3, 0x5e, 0xc7, 0x73, 0x16, 0xb1, 0xea, 0xf4, 0x3c, 0xc2, 0x9e, 0xf0,
-	0xaf, 0xd8, 0xb3, 0x06, 0xc5, 0x38, 0xb1, 0x95, 0xf3, 0x13, 0x93, 0xd1, 0x7c, 0x8c, 0xd7, 0xd0,
-	0x2e, 0x14, 0xa2, 0xb4, 0x56, 0x2e, 0x4c, 0xac, 0x28, 0x1f, 0x61, 0x35, 0xe3, 0x0c, 0x40, 0x39,
-	0xba, 0xcf, 0x3a, 0x53, 0x14, 0xe5, 0x87, 0x30, 0xa7, 0x6a, 0x43, 0x8d, 0xbf, 0x9b, 0xa3, 0x43,
-	0xe1, 0x55, 0x17, 0xf6, 0xe1, 0xc6, 0xb7, 0x1a, 0xac, 0x3c, 0x0a, 0xaa, 0xc6, 0x0b, 0x13, 0xbb,
-	0x9c, 0xde, 0xc8, 0x5d, 0xd0, 0x1b, 0xb9, 0x01, 0x22, 0xf8, 0x5e, 0x83, 0xab, 0x43, 0x4e, 0x28,
-	0xc6, 0x7c, 0x20, 0x73, 0xec, 0x5f, 0xd3, 0xd6, 0x12, 0xdd, 0x78, 0x42, 0x5e, 0x7e, 0x66, 0x76,
-	0xfb, 0xe4, 0xd0, 0xa4, 0xae, 0xcc, 0xf2, 0x94, 0x37, 0x82, 0xdf, 0x34, 0x58, 0x3e, 0xf4, 0x3b,
-	0xe4, 0xcd, 0x44, 0x23, 0xe9, 0xd9, 0x93, 0x8b, 0xf5, 0xad, 0xf1, 0x9d, 0x06, 0x2b, 0x83, 0x5e,
-	0xbe, 0x91, 0x70, 0xed, 0x43, 0xf1, 0xb1, 0x37, 0xbe, 0x04, 0xad, 0xee, 0x13, 0x6e, 0xa2, 0x32,
-	0xcc, 0xa9, 0x81, 0xa6, 0x48, 0xcb, 0x5f, 0x7a, 0x2c, 0xd0, 0x14, 0x13, 0xb1, 0x11, 0x4e, 0xb9,
-	0x1c, 0xce, 0x37, 0xc3, 0x29, 0x69, 0xfc, 0xa0, 0x41, 0x49, 0x55, 0x69, 0xa8, 0xf1, 0x62, 0x22,
-	0x7c, 0x0b, 0x80, 0xb2, 0x86, 0xa2, 0x12, 0xe1, 0x7a, 0x16, 0xe7, 0x28, 0x7b, 0x2c, 0x05, 0xe8,
-	0x23, 0x98, 0x15, 0xf6, 0xfd, 0xab, 0xcb, 0x5a, 0x42, 0x5f, 0xc4, 0x4f, 0x80, 0xd5, 0x06, 0xe3,
-	0x53, 0x28, 0x54, 0xab, 0x4f, 0x43, 0x3f, 0x06, 0x53, 0xa7, 0x25, 0x50, 0xee, 0xf8, 0x33, 0xde,
-	0x73, 0xc4, 0x03, 0x3a, 0xe0, 0x24, 0xb4, 0x10, 0xd0, 0xfe, 0x81, 0x63, 0x93, 0xd2, 0x0c, 0x5a,
-	0x14, 0x6f, 0x3f, 0x29, 0xe0, 0xbb, 0x67, 0x94, 0xf1, 0x92, 0x86, 0x10, 0x14, 0x95, 0x70, 0xcf,
-	0x75, 0x4e, 0xa9, 0xdd, 0x29, 0xa5, 0xd0, 0x15, 0x98, 0xf7, 0x35, 0x09, 0xae, 0x2d, 0xe9, 0x11,
-	0x98, 0x0a, 0x40, 0x29, 0xbd, 0xfd, 0x0a, 0x20, 0x5f, 0x35, 0xb9, 0x59, 0x97, 0x7f, 0x8d, 0x20,
-	0x13, 0x0a, 0xd1, 0xff, 0x14, 0xd0, 0x9d, 0x84, 0x90, 0x24, 0xfc, 0xed, 0x51, 0x59, 0x1f, 0x8b,
-	0x93, 0x25, 0x68, 0xcc, 0xa0, 0x3d, 0xc8, 0x08, 0xfb, 0x28, 0x89, 0x91, 0xa3, 0x4f, 0x9f, 0xca,
-	0x45, 0x55, 0x66, 0xcc, 0xa0, 0x26, 0x2c, 0x04, 0xaf, 0x38, 0x95, 0xf0, 0xdb, 0x09, 0x2a, 0x87,
-	0x9f, 0xef, 0x95, 0x3b, 0xe3, 0x60, 0x81, 0xb3, 0x0d, 0x28, 0x44, 0x1e, 0x1c, 0x2c, 0xd1, 0xc0,
-	0xf0, 0x9b, 0x29, 0xd1, 0x40, 0xc2, 0xc3, 0xc5, 0x98, 0x41, 0x1d, 0x28, 0xed, 0x11, 0x1e, 0xbb,
-	0xff, 0xa3, 0xf5, 0x31, 0xa3, 0xca, 0xa7, 0x9d, 0xca, 0xc6, 0x78, 0x60, 0x60, 0xc8, 0x85, 0xa5,
-	0x3d, 0xc2, 0x87, 0x2e, 0x9f, 0xe8, 0x5e, 0x82, 0x8e, 0x11, 0xd7, 0xe1, 0xca, 0x3b, 0x13, 0x60,
-	0xa3, 0x36, 0x4d, 0xb8, 0x12, 0xd8, 0x0c, 0xae, 0x0b, 0xeb, 0x23, 0x95, 0xc4, 0x2f, 0x7a, 0x95,
-	0xf1, 0x77, 0x5c, 0x71, 0xac, 0xab, 0x7b, 0x84, 0xc7, 0xe7, 0x03, 0x65, 0x9c, 0xb6, 0x18, 0xba,
-	0x9b, 0x60, 0x28, 0x79, 0x9a, 0x55, 0xee, 0x4d, 0x02, 0x0d, 0x8e, 0xe5, 0xc0, 0xca, 0x1e, 0xe1,
-	0x31, 0x8e, 0x55, 0x26, 0x93, 0x12, 0x92, 0x38, 0x31, 0x2a, 0x77, 0x27, 0x40, 0x06, 0x06, 0x8f,
-	0x00, 0x89, 0x43, 0x5a, 0x3d, 0xc7, 0x0e, 0xcb, 0xa4, 0x92, 0xd8, 0x1e, 0xbb, 0x56, 0x8f, 0xbf,
-	0x1c, 0x2c, 0xc0, 0x20, 0x76, 0x03, 0x3a, 0x8c, 0x19, 0xf4, 0x5c, 0xe8, 0xf6, 0xee, 0x59, 0xcf,
-	0x68, 0xeb, 0x4b, 0x95, 0x82, 0x0b, 0x75, 0xbf, 0x1d, 0xff, 0xa6, 0x16, 0x32, 0x2b, 0x11, 0xa7,
-	0x3f, 0x17, 0x05, 0x17, 0x06, 0xe7, 0x12, 0x55, 0x1f, 0xc1, 0x72, 0xd8, 0x34, 0xde, 0x95, 0xe5,
-	0xf2, 0x74, 0x6f, 0xff, 0x94, 0x82, 0xac, 0xc7, 0x88, 0x82, 0xfe, 0x5e, 0x67, 0xe0, 0x8f, 0x60,
-	0x21, 0xfe, 0xc0, 0x49, 0x2e, 0x9f, 0xc4, 0x47, 0xd0, 0x38, 0x6a, 0xc4, 0x30, 0xef, 0x3f, 0x66,
-	0x24, 0x6f, 0x19, 0xa3, 0xb8, 0x36, 0x7c, 0xee, 0x8c, 0xd1, 0xb9, 0xf3, 0xc9, 0xd1, 0xc7, 0x1d,
-	0xca, 0x4f, 0xfa, 0x4d, 0xef, 0xcb, 0xd6, 0x39, 0xed, 0x76, 0xe9, 0x39, 0x27, 0xad, 0x93, 0x2d,
-	0xb9, 0xeb, 0xdd, 0x36, 0x65, 0xdc, 0xa5, 0xcd, 0x3e, 0x27, 0xed, 0x2d, 0xff, 0xd8, 0x5b, 0x42,
-	0xd5, 0x96, 0x67, 0xae, 0xd7, 0x6c, 0xce, 0x8a, 0xd5, 0xfd, 0x7f, 0x02, 0x00, 0x00, 0xff, 0xff,
-	0x47, 0xde, 0x61, 0x7b, 0x8e, 0x17, 0x00, 0x00,
+	// 1596 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xc4, 0x58, 0x5d, 0x6f, 0x1b, 0xc5,
+	0x1a, 0xce, 0x66, 0xed, 0xd8, 0x7e, 0xed, 0x38, 0xee, 0xe4, 0xa3, 0xae, 0xdb, 0xd3, 0xa6, 0x7b,
+	0xd4, 0x26, 0xad, 0xce, 0x49, 0x8e, 0x52, 0x1d, 0x0a, 0x42, 0x42, 0x34, 0x75, 0x1a, 0x59, 0x6d,
+	0xa2, 0x68, 0x5c, 0xa8, 0xc8, 0x8d, 0xb5, 0xb6, 0xa7, 0xce, 0xc0, 0x7e, 0x98, 0x9d, 0x71, 0x93,
+	0xe6, 0x06, 0xc4, 0x05, 0x08, 0x6e, 0xca, 0x15, 0x48, 0x70, 0x83, 0x84, 0xf8, 0x1d, 0xfc, 0x05,
+	0x7e, 0x0f, 0x57, 0x68, 0x67, 0x66, 0xbf, 0xec, 0x4d, 0x6c, 0xdc, 0x94, 0xde, 0x79, 0x5e, 0x3f,
+	0xf3, 0x7e, 0xbf, 0xcf, 0xcc, 0x2c, 0xa0, 0xae, 0xc9, 0xcd, 0x16, 0x23, 0xde, 0x0b, 0xda, 0x21,
+	0x1b, 0x7d, 0xcf, 0xe5, 0x2e, 0xba, 0x64, 0x53, 0xeb, 0xc5, 0x80, 0xc9, 0xd5, 0x86, 0x0f, 0xa8,
+	0x95, 0x3a, 0xae, 0x6d, 0xbb, 0x8e, 0x14, 0xd5, 0xca, 0xd4, 0xe1, 0xc4, 0x73, 0x4c, 0x4b, 0xad,
+	0x4b, 0xf1, 0x0d, 0xc6, 0x17, 0xb0, 0x88, 0x49, 0x8f, 0x32, 0x4e, 0xbc, 0x7d, 0xb7, 0x4b, 0x30,
+	0xf9, 0x7c, 0x40, 0x18, 0x47, 0xff, 0x83, 0x4c, 0xdb, 0x64, 0xa4, 0xaa, 0xad, 0x6a, 0xeb, 0xc5,
+	0xad, 0x6b, 0x1b, 0x09, 0x23, 0x4a, 0xfd, 0x1e, 0xeb, 0x6d, 0x9b, 0x8c, 0x60, 0x81, 0x44, 0xef,
+	0x40, 0xce, 0xec, 0x76, 0x3d, 0xc2, 0x58, 0x75, 0xf6, 0x9c, 0x4d, 0x0f, 0x24, 0x06, 0x07, 0x60,
+	0xe3, 0x95, 0x06, 0x4b, 0x49, 0x0f, 0x58, 0xdf, 0x75, 0x18, 0x41, 0xdb, 0x50, 0xa4, 0x0e, 0xe5,
+	0xad, 0xbe, 0xe9, 0x99, 0x36, 0x53, 0x9e, 0xdc, 0x4c, 0x2a, 0x0d, 0x43, 0x6b, 0x38, 0x94, 0x1f,
+	0x08, 0x20, 0x06, 0x1a, 0xfe, 0x46, 0xf7, 0x60, 0x8e, 0x71, 0x93, 0x0f, 0x02, 0x9f, 0xae, 0xa6,
+	0xfa, 0xd4, 0x14, 0x10, 0xac, 0xa0, 0xc6, 0x1f, 0x1a, 0x94, 0x9a, 0xa4, 0xd7, 0xa8, 0x07, 0xc9,
+	0x58, 0x82, 0x6c, 0xc7, 0x1d, 0x38, 0x5c, 0xf8, 0x30, 0x8f, 0xe5, 0x02, 0xad, 0x42, 0xb1, 0x73,
+	0x64, 0x3a, 0x0e, 0xb1, 0xf6, 0x4d, 0x9b, 0x08, 0x03, 0x05, 0x1c, 0x17, 0x21, 0x03, 0x4a, 0x1d,
+	0xd7, 0xb2, 0x48, 0x87, 0x53, 0xd7, 0x69, 0xd4, 0xab, 0xfa, 0xaa, 0xb6, 0xae, 0xe3, 0x84, 0xcc,
+	0xd7, 0xd2, 0x37, 0x3d, 0x4e, 0x15, 0x24, 0x23, 0x20, 0x71, 0x11, 0xba, 0x0a, 0x05, 0x7f, 0x47,
+	0xcb, 0xf1, 0xad, 0x64, 0x85, 0x95, 0xbc, 0x2f, 0x10, 0x26, 0x6e, 0x41, 0x39, 0xc4, 0x4a, 0xc4,
+	0x9c, 0x40, 0xcc, 0x87, 0x52, 0x1f, 0x66, 0x7c, 0xaf, 0x01, 0x7a, 0xc0, 0x18, 0xed, 0x39, 0x89,
+	0xc0, 0x56, 0x60, 0xce, 0x71, 0xbb, 0xa4, 0x51, 0x17, 0x91, 0xe9, 0x58, 0xad, 0x7c, 0x93, 0x7d,
+	0x42, 0xbc, 0x96, 0xe7, 0x5a, 0x41, 0x60, 0x79, 0x5f, 0x80, 0x5d, 0x8b, 0xa0, 0x1d, 0x98, 0x67,
+	0x31, 0x25, 0xac, 0xaa, 0xaf, 0xea, 0xeb, 0xc5, 0xad, 0x1b, 0x1b, 0x23, 0x8d, 0xb8, 0x11, 0x37,
+	0x86, 0x93, 0xbb, 0x8c, 0xdf, 0x67, 0x61, 0x41, 0xfc, 0x2f, 0xfd, 0xb2, 0x89, 0x23, 0x12, 0x2d,
+	0x40, 0xca, 0x1d, 0xb9, 0x98, 0x20, 0xd1, 0x61, 0x81, 0xf4, 0x78, 0x81, 0x86, 0xd3, 0x9f, 0x19,
+	0x9f, 0xfe, 0xec, 0x68, 0xfa, 0x6f, 0x40, 0x91, 0x9c, 0xf4, 0xa9, 0x47, 0x5a, 0x9c, 0xaa, 0xf4,
+	0x66, 0x30, 0x48, 0xd1, 0x53, 0x6a, 0x93, 0x58, 0x8f, 0xe5, 0x26, 0xee, 0xb1, 0x64, 0x51, 0xf3,
+	0x63, 0x8b, 0x5a, 0x48, 0x2b, 0xea, 0x4f, 0x1a, 0x2c, 0x26, 0x8a, 0xaa, 0x06, 0x67, 0x1f, 0x2a,
+	0x2c, 0x99, 0x58, 0x7f, 0x7a, 0xfc, 0x1a, 0x19, 0x67, 0xd5, 0x28, 0x82, 0xe2, 0x91, 0xbd, 0xd3,
+	0x0d, 0xd1, 0x09, 0x94, 0x1e, 0x59, 0x03, 0x76, 0x34, 0x3d, 0xa1, 0x20, 0xc8, 0x74, 0xdb, 0x8d,
+	0xba, 0x30, 0xaa, 0x63, 0xf1, 0x7b, 0x92, 0x92, 0x1a, 0xbf, 0x68, 0x80, 0x9a, 0x47, 0xee, 0x71,
+	0x93, 0xf4, 0x44, 0x40, 0x53, 0x3b, 0x30, 0x6c, 0x6c, 0x76, 0x7c, 0xff, 0xe8, 0xa3, 0xfd, 0x13,
+	0x84, 0x91, 0x89, 0xc2, 0x30, 0x3e, 0x85, 0xc5, 0x84, 0x87, 0xaa, 0x70, 0xd7, 0x01, 0x98, 0x14,
+	0x35, 0xea, 0xb2, 0x64, 0x3a, 0x8e, 0x49, 0xa6, 0x2b, 0xc4, 0x11, 0x2c, 0x29, 0x3b, 0xfe, 0x1f,
+	0x84, 0x4d, 0x9f, 0x8f, 0xa4, 0x7b, 0xb3, 0xc3, 0xee, 0x19, 0x3f, 0xea, 0x50, 0x89, 0x9b, 0x6a,
+	0x38, 0xcf, 0x5d, 0x74, 0x0d, 0x0a, 0x21, 0x44, 0x8d, 0x75, 0x24, 0x40, 0xff, 0x87, 0xac, 0xef,
+	0xa6, 0x1c, 0xea, 0xf2, 0x59, 0x1c, 0x12, 0x6a, 0xc4, 0x12, 0xed, 0xcf, 0x64, 0xc7, 0x23, 0x26,
+	0x57, 0x33, 0xa9, 0xcb, 0x99, 0x94, 0x22, 0x31, 0x93, 0x37, 0xa0, 0xc8, 0x88, 0x69, 0x91, 0xae,
+	0x04, 0x64, 0x24, 0x40, 0x8a, 0x04, 0xe0, 0x26, 0x94, 0x9e, 0xfb, 0xed, 0x19, 0x20, 0xb2, 0x02,
+	0x51, 0x54, 0x32, 0x01, 0x79, 0x0c, 0x0b, 0x8c, 0x9b, 0x1e, 0x6f, 0xf5, 0x5d, 0x26, 0x8a, 0xc9,
+	0xaa, 0x73, 0x69, 0x53, 0x14, 0x9e, 0x41, 0x7b, 0xac, 0x77, 0xa0, 0xa0, 0xb8, 0x2c, 0xb6, 0x06,
+	0x4b, 0x86, 0x76, 0x61, 0x9e, 0x38, 0xdd, 0x98, 0xaa, 0xdc, 0xc4, 0xaa, 0x4a, 0xc4, 0xe9, 0x46,
+	0x8a, 0xa2, 0x1e, 0xc8, 0x4f, 0xde, 0x03, 0xdf, 0x6a, 0xb0, 0x3c, 0xd4, 0x04, 0xaa, 0xe5, 0x22,
+	0x75, 0xda, 0xe4, 0xe4, 0xf5, 0xbe, 0xdc, 0x44, 0x64, 0x13, 0x14, 0xb7, 0xfe, 0x3d, 0xa6, 0x6c,
+	0x7e, 0x23, 0x60, 0xb5, 0xc5, 0xa0, 0x70, 0xb9, 0xe1, 0x30, 0xe2, 0xf1, 0x6d, 0xea, 0x58, 0x6e,
+	0xef, 0xc0, 0xe4, 0xaf, 0xc1, 0x11, 0x89, 0xee, 0x9a, 0x1d, 0xea, 0x2e, 0xe3, 0x37, 0x0d, 0xae,
+	0x0c, 0xdb, 0x8a, 0x42, 0xaf, 0x41, 0xfe, 0x39, 0x25, 0x56, 0x37, 0x9a, 0xb5, 0x70, 0x8d, 0xee,
+	0x43, 0xb6, 0xef, 0x83, 0x55, 0x80, 0x67, 0xdd, 0x3a, 0x9a, 0xdc, 0xa3, 0x4e, 0xef, 0x09, 0x65,
+	0x1c, 0x4b, 0x7c, 0x2c, 0x9f, 0xfa, 0xe4, 0xe5, 0xf9, 0x52, 0x83, 0x25, 0xe9, 0xe7, 0x43, 0x79,
+	0xa8, 0xbd, 0x59, 0xd2, 0x4c, 0xb9, 0x86, 0x18, 0x36, 0x2c, 0x3f, 0x33, 0x79, 0xe7, 0xa8, 0x6e,
+	0xbf, 0xb6, 0x0b, 0xbe, 0xb9, 0xe8, 0x6c, 0x96, 0x29, 0x2c, 0xe0, 0x84, 0xcc, 0xf8, 0x59, 0x83,
+	0x05, 0x71, 0x3c, 0x34, 0x49, 0xef, 0x1f, 0x0f, 0x76, 0x88, 0xc8, 0x32, 0x23, 0x44, 0xf6, 0xa7,
+	0x0e, 0x45, 0xd5, 0xbf, 0x13, 0x70, 0xd8, 0xc5, 0x1c, 0x13, 0x6b, 0xb0, 0x40, 0x45, 0x0b, 0xb4,
+	0x54, 0xa2, 0xa4, 0x63, 0x05, 0x5c, 0xa6, 0xf1, 0xce, 0x10, 0x37, 0x07, 0xb7, 0x4f, 0x9c, 0x38,
+	0x6d, 0xe5, 0x7d, 0x41, 0x1a, 0xef, 0xcd, 0x8d, 0xe5, 0xbd, 0xdc, 0x28, 0xef, 0x5d, 0x81, 0xbc,
+	0x33, 0xb0, 0x5b, 0x9e, 0x7b, 0x2c, 0x39, 0x46, 0xc7, 0x39, 0x67, 0x60, 0x63, 0xf7, 0x98, 0xf9,
+	0x7f, 0xd9, 0xc4, 0x6e, 0x31, 0x7a, 0x2a, 0xaf, 0x24, 0x3a, 0xce, 0xd9, 0xc4, 0x6e, 0xd2, 0x53,
+	0x12, 0x31, 0x39, 0xfc, 0x2d, 0x26, 0x6f, 0x40, 0x39, 0x49, 0xb2, 0xd5, 0xe2, 0xc4, 0xc4, 0x38,
+	0x9f, 0xe0, 0x58, 0xb4, 0x03, 0xa5, 0x38, 0xc5, 0x56, 0x4b, 0x13, 0x2b, 0x2a, 0xc6, 0x18, 0xd6,
+	0x38, 0x01, 0x50, 0x8e, 0xee, 0xb1, 0xde, 0x14, 0x4d, 0xf9, 0x2e, 0xe4, 0x54, 0x6f, 0xa8, 0x53,
+	0xfa, 0xfa, 0xd9, 0xa9, 0x10, 0xc4, 0x18, 0xc0, 0x8d, 0xaf, 0x34, 0x58, 0x79, 0x18, 0x76, 0x8d,
+	0x9f, 0x26, 0x76, 0x31, 0xb3, 0x51, 0x38, 0x67, 0x36, 0x0a, 0x43, 0x44, 0xf0, 0x8d, 0x06, 0x97,
+	0x47, 0x9c, 0x50, 0x8c, 0x79, 0x5f, 0xd6, 0x38, 0xb8, 0x4d, 0xde, 0x4c, 0x75, 0xe3, 0x31, 0x79,
+	0xf9, 0xb1, 0x69, 0x0d, 0xc8, 0x81, 0x49, 0x3d, 0x59, 0xe5, 0x29, 0x2f, 0x2e, 0xbf, 0x6a, 0xb0,
+	0x7c, 0x10, 0x4c, 0xc8, 0xdb, 0xc9, 0x46, 0xda, 0xeb, 0xac, 0x90, 0x98, 0x5b, 0xe3, 0x6b, 0x0d,
+	0x56, 0x86, 0xbd, 0x7c, 0x2b, 0xe9, 0xda, 0x83, 0xf2, 0x23, 0xff, 0xf8, 0x12, 0xb4, 0xba, 0x47,
+	0xb8, 0x89, 0xaa, 0x90, 0x53, 0x07, 0x9a, 0x22, 0xad, 0x60, 0xe9, 0xb3, 0x40, 0x5b, 0x9c, 0x88,
+	0xad, 0xe8, 0x94, 0x2b, 0xe0, 0x62, 0x3b, 0x3a, 0x25, 0x8d, 0xef, 0xb4, 0xf0, 0x32, 0x17, 0x69,
+	0x3c, 0x9f, 0x08, 0xff, 0x05, 0x40, 0x59, 0x4b, 0x51, 0x89, 0x70, 0x3d, 0x8f, 0x0b, 0x94, 0x3d,
+	0x92, 0x02, 0xf4, 0x1e, 0xcc, 0x09, 0xfb, 0xac, 0x9a, 0x4d, 0xcb, 0x87, 0x98, 0x8b, 0x64, 0x04,
+	0x58, 0x6d, 0x30, 0x3e, 0x82, 0x52, 0xbd, 0xfe, 0x24, 0xf2, 0x63, 0xb8, 0x74, 0x5a, 0x0a, 0xe5,
+	0x8e, 0x8f, 0xf1, 0xae, 0x2b, 0xde, 0xf9, 0x21, 0x27, 0xa1, 0x85, 0x90, 0xf6, 0xf7, 0x5d, 0x87,
+	0x54, 0x66, 0xd0, 0xa2, 0x78, 0xa2, 0x4a, 0x01, 0xdf, 0x39, 0xa1, 0x8c, 0x57, 0x34, 0x84, 0xa0,
+	0xac, 0x84, 0xbb, 0x9e, 0x7b, 0x4c, 0x9d, 0x5e, 0x65, 0x16, 0x5d, 0x82, 0xf9, 0x40, 0x93, 0xe0,
+	0xda, 0x8a, 0x1e, 0x83, 0xa9, 0x04, 0x54, 0x32, 0x5b, 0xaf, 0x00, 0x8a, 0x75, 0x93, 0x9b, 0x4d,
+	0xf9, 0x05, 0x07, 0x99, 0x50, 0x8a, 0x7f, 0xfa, 0x40, 0xb7, 0x53, 0x52, 0x92, 0xf2, 0x75, 0xa6,
+	0xb6, 0x36, 0x16, 0x27, 0x5b, 0xd0, 0x98, 0x41, 0xbb, 0x90, 0x15, 0xf6, 0x51, 0x1a, 0x23, 0xc7,
+	0x5f, 0x68, 0xb5, 0xf3, 0xba, 0xcc, 0x98, 0x41, 0x6d, 0x58, 0x08, 0x1f, 0x9b, 0xaa, 0xe0, 0xb7,
+	0x52, 0x54, 0x8e, 0x7e, 0x65, 0xa8, 0xdd, 0x1e, 0x07, 0x0b, 0x9d, 0x6d, 0x41, 0x29, 0xf6, 0x2e,
+	0x62, 0xa9, 0x06, 0x46, 0x9f, 0x76, 0xa9, 0x06, 0x52, 0xde, 0x57, 0xc6, 0x0c, 0xea, 0x41, 0x65,
+	0x97, 0xf0, 0xc4, 0x55, 0x18, 0xad, 0x8d, 0x39, 0xaa, 0x02, 0xda, 0xa9, 0xad, 0x8f, 0x07, 0x86,
+	0x86, 0x3c, 0x58, 0xda, 0x25, 0x7c, 0xe4, 0xf2, 0x89, 0xee, 0xa6, 0xe8, 0x38, 0xe3, 0x3a, 0x5c,
+	0xfb, 0xcf, 0x04, 0xd8, 0xb8, 0x4d, 0x13, 0x2e, 0x85, 0x36, 0xc3, 0xeb, 0xc2, 0xda, 0x99, 0x4a,
+	0x92, 0x17, 0xbd, 0xda, 0xf8, 0x3b, 0xae, 0x08, 0xeb, 0xf2, 0x2e, 0xe1, 0xc9, 0xf3, 0x81, 0x32,
+	0x4e, 0x3b, 0x0c, 0xdd, 0x49, 0x31, 0x94, 0x7e, 0x9a, 0xd5, 0xee, 0x4e, 0x02, 0x0d, 0xc3, 0x72,
+	0x61, 0x65, 0x97, 0xf0, 0x04, 0xc7, 0x2a, 0x93, 0x69, 0x05, 0x49, 0x3d, 0x31, 0x6a, 0x77, 0x26,
+	0x40, 0x86, 0x06, 0x0f, 0x01, 0x89, 0x20, 0xed, 0xbe, 0xeb, 0x44, 0x6d, 0x52, 0x4b, 0x1d, 0x8f,
+	0x1d, 0xbb, 0xcf, 0x5f, 0x0e, 0x37, 0x60, 0x98, 0xbb, 0x21, 0x1d, 0xc6, 0x0c, 0x7a, 0x26, 0x74,
+	0xfb, 0xf7, 0xac, 0xa7, 0xb4, 0xf3, 0x99, 0x2a, 0xc1, 0xb9, 0xba, 0x87, 0x1e, 0x57, 0x6a, 0x21,
+	0xab, 0x12, 0x73, 0xfa, 0x13, 0xd1, 0x70, 0x51, 0x72, 0x2e, 0x50, 0xf5, 0x21, 0x2c, 0x47, 0x43,
+	0xe3, 0x5f, 0x59, 0x2e, 0x4e, 0xf7, 0xd6, 0x0f, 0xb3, 0x90, 0xf7, 0x19, 0x51, 0xd0, 0xdf, 0x9b,
+	0x4c, 0xfc, 0x21, 0x2c, 0x24, 0x1f, 0x38, 0xe9, 0xed, 0x93, 0xfa, 0x08, 0x1a, 0x47, 0x8d, 0x18,
+	0xe6, 0x83, 0xc7, 0x8c, 0xe4, 0x2d, 0xe3, 0x2c, 0xae, 0x8d, 0x9e, 0x3b, 0x63, 0x74, 0x6e, 0x7f,
+	0x78, 0xf8, 0x41, 0x8f, 0xf2, 0xa3, 0x41, 0xdb, 0xff, 0x67, 0xf3, 0x94, 0x5a, 0x16, 0x3d, 0xe5,
+	0xa4, 0x73, 0xb4, 0x29, 0x77, 0xfd, 0xb7, 0x4b, 0x19, 0xf7, 0x68, 0x7b, 0xc0, 0x49, 0x77, 0x33,
+	0x08, 0x7b, 0x53, 0xa8, 0xda, 0xf4, 0xcd, 0xf5, 0xdb, 0xed, 0x39, 0xb1, 0xba, 0xf7, 0x57, 0x00,
+	0x00, 0x00, 0xff, 0xff, 0x3e, 0xe9, 0x0b, 0x5c, 0x35, 0x18, 0x00, 0x00,
 }
 
 // Reference imports to suppress errors if they are not otherwise used.
diff --git a/internal/proto/query_service.proto b/internal/proto/query_service.proto
index 285b1665c447eec9450493bc3d71731f2c28018d..4e1a2056a1835a05dab6bd5ff67ff14dadd7d974 100644
--- a/internal/proto/query_service.proto
+++ b/internal/proto/query_service.proto
@@ -124,7 +124,7 @@ message LoadSegmentRequest {
   int64 partitionID = 4;
   repeated int64 segmentIDs = 5;
   repeated int64 fieldIDs = 6;
-  data.SegmentStatesResponse last_segment_state = 7;
+  data.SegmentStateInfo last_segment_state = 7;
 }
 
 message ReleaseSegmentRequest {
@@ -152,7 +152,7 @@ service QueryService {
   rpc LoadCollection(LoadCollectionRequest) returns (common.Status) {}
   rpc ReleaseCollection(ReleaseCollectionRequest) returns (common.Status) {}
 
-  rpc CreateQueryChannel(common.Empty ) returns (CreateQueryChannelResponse) {}
+  rpc CreateQueryChannel(common.Empty) returns (CreateQueryChannelResponse) {}
   rpc GetTimeTickChannel(common.Empty) returns (milvus.StringResponse) {}
   rpc GetStatisticsChannel(common.Empty) returns (milvus.StringResponse) {}
   rpc GetPartitionStates(PartitionStatesRequest) returns (PartitionStatesResponse) {}
diff --git a/internal/proto/querypb/query_service.pb.go b/internal/proto/querypb/query_service.pb.go
index 60ab104e76c3bc243831312a275c7b61dd95a1fd..21cbccb4225908a793b42e9bc87f65e6b0c1787c 100644
--- a/internal/proto/querypb/query_service.pb.go
+++ b/internal/proto/querypb/query_service.pb.go
@@ -972,16 +972,16 @@ func (m *WatchDmChannelsRequest) GetChannelIDs() []string {
 }
 
 type LoadSegmentRequest struct {
-	Base                 *commonpb.MsgBase             `protobuf:"bytes,1,opt,name=base,proto3" json:"base,omitempty"`
-	DbID                 int64                         `protobuf:"varint,2,opt,name=dbID,proto3" json:"dbID,omitempty"`
-	CollectionID         int64                         `protobuf:"varint,3,opt,name=collectionID,proto3" json:"collectionID,omitempty"`
-	PartitionID          int64                         `protobuf:"varint,4,opt,name=partitionID,proto3" json:"partitionID,omitempty"`
-	SegmentIDs           []int64                       `protobuf:"varint,5,rep,packed,name=segmentIDs,proto3" json:"segmentIDs,omitempty"`
-	FieldIDs             []int64                       `protobuf:"varint,6,rep,packed,name=fieldIDs,proto3" json:"fieldIDs,omitempty"`
-	LastSegmentState     *datapb.SegmentStatesResponse `protobuf:"bytes,7,opt,name=last_segment_state,json=lastSegmentState,proto3" json:"last_segment_state,omitempty"`
-	XXX_NoUnkeyedLiteral struct{}                      `json:"-"`
-	XXX_unrecognized     []byte                        `json:"-"`
-	XXX_sizecache        int32                         `json:"-"`
+	Base                 *commonpb.MsgBase        `protobuf:"bytes,1,opt,name=base,proto3" json:"base,omitempty"`
+	DbID                 int64                    `protobuf:"varint,2,opt,name=dbID,proto3" json:"dbID,omitempty"`
+	CollectionID         int64                    `protobuf:"varint,3,opt,name=collectionID,proto3" json:"collectionID,omitempty"`
+	PartitionID          int64                    `protobuf:"varint,4,opt,name=partitionID,proto3" json:"partitionID,omitempty"`
+	SegmentIDs           []int64                  `protobuf:"varint,5,rep,packed,name=segmentIDs,proto3" json:"segmentIDs,omitempty"`
+	FieldIDs             []int64                  `protobuf:"varint,6,rep,packed,name=fieldIDs,proto3" json:"fieldIDs,omitempty"`
+	LastSegmentState     *datapb.SegmentStateInfo `protobuf:"bytes,7,opt,name=last_segment_state,json=lastSegmentState,proto3" json:"last_segment_state,omitempty"`
+	XXX_NoUnkeyedLiteral struct{}                 `json:"-"`
+	XXX_unrecognized     []byte                   `json:"-"`
+	XXX_sizecache        int32                    `json:"-"`
 }
 
 func (m *LoadSegmentRequest) Reset()         { *m = LoadSegmentRequest{} }
@@ -1051,7 +1051,7 @@ func (m *LoadSegmentRequest) GetFieldIDs() []int64 {
 	return nil
 }
 
-func (m *LoadSegmentRequest) GetLastSegmentState() *datapb.SegmentStatesResponse {
+func (m *LoadSegmentRequest) GetLastSegmentState() *datapb.SegmentStateInfo {
 	if m != nil {
 		return m.LastSegmentState
 	}
@@ -1211,81 +1211,81 @@ func init() {
 func init() { proto.RegisterFile("query_service.proto", fileDescriptor_5fcb6756dc1afb8d) }
 
 var fileDescriptor_5fcb6756dc1afb8d = []byte{
-	// 1174 bytes of a gzipped FileDescriptorProto
+	// 1177 bytes of a gzipped FileDescriptorProto
 	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xcc, 0x57, 0xdd, 0x6e, 0x1b, 0x45,
-	0x14, 0xf6, 0xc6, 0x4e, 0x5a, 0x9f, 0xb8, 0xb6, 0x3b, 0xf9, 0xd5, 0x82, 0xaa, 0x32, 0x40, 0x9b,
-	0x1f, 0x70, 0x50, 0x2a, 0x21, 0xae, 0x40, 0x49, 0x5c, 0x45, 0x96, 0x68, 0x08, 0x9b, 0x94, 0x8a,
-	0x40, 0x65, 0xd6, 0xbb, 0x83, 0x3d, 0xed, 0xfe, 0xb8, 0x3b, 0xe3, 0x40, 0x72, 0x03, 0x48, 0x5c,
-	0xc3, 0x33, 0x20, 0x10, 0x95, 0xb8, 0xe6, 0x6d, 0xb8, 0xe2, 0x11, 0x78, 0x03, 0xb4, 0xb3, 0xeb,
-	0xcd, 0xce, 0x7a, 0x1c, 0x3b, 0x71, 0xdb, 0xf4, 0x6e, 0x67, 0xf6, 0x9c, 0xf3, 0x7d, 0xe7, 0xcc,
-	0xcc, 0x99, 0x6f, 0x60, 0xee, 0x59, 0x8f, 0x04, 0x27, 0x4d, 0x46, 0x82, 0x63, 0x6a, 0x91, 0x5a,
-	0x37, 0xf0, 0xb9, 0x8f, 0x90, 0x4b, 0x9d, 0xe3, 0x1e, 0x8b, 0x46, 0x35, 0x61, 0xa1, 0x97, 0x2c,
-	0xdf, 0x75, 0x7d, 0x2f, 0x9a, 0xd3, 0x4b, 0x69, 0x0b, 0xbd, 0x4c, 0x3d, 0x4e, 0x02, 0xcf, 0x74,
-	0xe2, 0x31, 0xb2, 0x4d, 0x6e, 0xca, 0x31, 0xf1, 0x0f, 0x30, 0x67, 0x90, 0x36, 0x65, 0x9c, 0x04,
-	0x7b, 0xbe, 0x4d, 0x0c, 0xf2, 0xac, 0x47, 0x18, 0x47, 0x1f, 0x40, 0xa1, 0x65, 0x32, 0xb2, 0xac,
-	0xdd, 0xd6, 0x56, 0x66, 0x37, 0xdf, 0xac, 0x49, 0xc8, 0x31, 0xe4, 0x03, 0xd6, 0xde, 0x36, 0x19,
-	0x31, 0x84, 0x25, 0xfa, 0x10, 0xae, 0x99, 0xb6, 0x1d, 0x10, 0xc6, 0x96, 0xa7, 0xce, 0x71, 0xda,
-	0x8a, 0x6c, 0x8c, 0xbe, 0x31, 0xfe, 0x55, 0x83, 0x79, 0x99, 0x01, 0xeb, 0xfa, 0x1e, 0x23, 0xe8,
-	0x1e, 0xcc, 0x30, 0x6e, 0xf2, 0x1e, 0x8b, 0x49, 0xbc, 0xa1, 0x8c, 0x77, 0x20, 0x4c, 0x8c, 0xd8,
-	0x14, 0x6d, 0xc3, 0x2c, 0xf5, 0x28, 0x6f, 0x76, 0xcd, 0xc0, 0x74, 0xfb, 0x4c, 0xde, 0x92, 0x3d,
-	0x93, 0xaa, 0x34, 0x3c, 0xca, 0xf7, 0x85, 0xa1, 0x01, 0x34, 0xf9, 0xc6, 0x8f, 0x61, 0xe1, 0xa0,
-	0xe3, 0x7f, 0xb7, 0xe3, 0x3b, 0x0e, 0xb1, 0x38, 0xf5, 0xbd, 0xcb, 0x17, 0x05, 0x41, 0xc1, 0x6e,
-	0x35, 0xea, 0x82, 0x47, 0xde, 0x10, 0xdf, 0x98, 0xc1, 0x62, 0x36, 0xfc, 0x24, 0x19, 0xbf, 0x03,
-	0x37, 0xac, 0x24, 0x54, 0xa3, 0x1e, 0xe6, 0x9c, 0x5f, 0xc9, 0x1b, 0xf2, 0x24, 0xfe, 0x49, 0x83,
-	0x85, 0x4f, 0x7d, 0xd3, 0x7e, 0x49, 0x49, 0x21, 0x0c, 0xa5, 0x34, 0xe0, 0x72, 0x5e, 0xfc, 0x93,
-	0xe6, 0xf0, 0xcf, 0x1a, 0x2c, 0x1b, 0xc4, 0x21, 0x26, 0x23, 0x57, 0x49, 0xe3, 0x47, 0x0d, 0xe6,
-	0xc3, 0x05, 0xd8, 0x37, 0x03, 0x4e, 0xaf, 0x86, 0x42, 0x37, 0xda, 0x61, 0x29, 0x06, 0x93, 0xec,
-	0x00, 0x0c, 0xa5, 0x6e, 0x3f, 0xd2, 0xd9, 0x06, 0x90, 0xe6, 0xb0, 0x0b, 0x95, 0x04, 0x2d, 0x74,
-	0x27, 0x0c, 0xdd, 0x86, 0xd9, 0x94, 0x89, 0x00, 0xcc, 0x1b, 0xe9, 0x29, 0xf4, 0x11, 0x4c, 0x87,
-	0x10, 0x44, 0xe4, 0x57, 0xde, 0xc4, 0xb5, 0xc1, 0xfe, 0x53, 0x93, 0xa3, 0x1a, 0x91, 0x03, 0xfe,
-	0x53, 0x83, 0xc5, 0x0c, 0xde, 0x2b, 0xaf, 0xf2, 0x40, 0x5d, 0x0a, 0x8a, 0xba, 0xfc, 0xa5, 0xc1,
-	0xd2, 0x00, 0xd1, 0x49, 0x16, 0xe3, 0x08, 0x16, 0x13, 0x80, 0xa6, 0x4d, 0x98, 0x15, 0xd0, 0x6e,
-	0xf8, 0x1d, 0x2d, 0xcb, 0xec, 0xe6, 0xdb, 0xa3, 0x8b, 0xc8, 0x8c, 0x85, 0x24, 0x44, 0x3d, 0x15,
-	0x01, 0xff, 0xa1, 0xc1, 0x7c, 0x78, 0x88, 0xaf, 0x6e, 0xe7, 0x8e, 0x55, 0xd3, 0xe7, 0x1a, 0x2c,
-	0xc5, 0xe7, 0xfc, 0x35, 0x67, 0xfa, 0x9b, 0x06, 0xfa, 0x4e, 0x40, 0x4c, 0x4e, 0x3e, 0x0f, 0xd7,
-	0x61, 0xa7, 0x63, 0x7a, 0x1e, 0x71, 0x26, 0xdb, 0x00, 0x77, 0xa1, 0x12, 0x44, 0xc9, 0x36, 0xad,
-	0x28, 0x9e, 0xa0, 0x5e, 0x34, 0xca, 0xf1, 0x74, 0x8c, 0x82, 0xde, 0x85, 0x72, 0x40, 0x58, 0xcf,
-	0x39, 0xb3, 0xcb, 0x0b, 0xbb, 0x1b, 0xd1, 0x6c, 0x6c, 0x86, 0x7f, 0xd7, 0x60, 0x69, 0xcb, 0xb6,
-	0xd3, 0x04, 0x27, 0x38, 0x4b, 0xeb, 0x70, 0x33, 0xc3, 0x2e, 0x2e, 0x6d, 0xd1, 0xa8, 0xca, 0xfc,
-	0x1a, 0x75, 0xb4, 0x0a, 0x55, 0x99, 0x61, 0x5c, 0xea, 0xa2, 0x51, 0x91, 0x38, 0x36, 0xea, 0xf8,
-	0x1f, 0x0d, 0x74, 0x83, 0xb8, 0xfe, 0x31, 0x51, 0x12, 0xbd, 0x54, 0x25, 0xfb, 0xd9, 0x4d, 0x4d,
-	0x96, 0x5d, 0xfe, 0x02, 0xd9, 0x15, 0xd4, 0xd9, 0x3d, 0x81, 0xc5, 0x47, 0x26, 0xb7, 0x3a, 0x75,
-	0x77, 0xf2, 0x15, 0xb8, 0x05, 0x90, 0xe0, 0x45, 0x4d, 0xa1, 0x68, 0xa4, 0x66, 0xf0, 0xdf, 0x53,
-	0x80, 0xc2, 0x43, 0x7e, 0x40, 0xda, 0x2e, 0xf1, 0xf8, 0xab, 0x3f, 0x38, 0x99, 0x7b, 0xa1, 0x30,
-	0x78, 0x2f, 0xdc, 0x02, 0x60, 0x11, 0xbb, 0x30, 0x85, 0x69, 0x71, 0xb0, 0x52, 0x33, 0x48, 0x87,
-	0xeb, 0xdf, 0x52, 0xe2, 0xd8, 0xe1, 0xdf, 0x19, 0xf1, 0x37, 0x19, 0xa3, 0x2f, 0x00, 0x39, 0x26,
-	0xe3, 0xcd, 0xd8, 0xbc, 0x19, 0x5d, 0x30, 0xd7, 0x44, 0x56, 0x2b, 0x72, 0x56, 0xa1, 0x5a, 0xad,
-	0xc5, 0x65, 0x90, 0x5b, 0xb3, 0x51, 0x0d, 0x63, 0xa4, 0x7f, 0xe1, 0x7f, 0x35, 0x58, 0x88, 0x9b,
-	0xce, 0x95, 0x55, 0x6e, 0x8c, 0x96, 0x33, 0x49, 0xed, 0xf0, 0x2f, 0x1a, 0x2c, 0xed, 0xf8, 0x6e,
-	0xd7, 0xf7, 0x06, 0x2a, 0x72, 0xb9, 0x13, 0xf6, 0x71, 0xe4, 0x44, 0xfa, 0x42, 0xf9, 0xce, 0x10,
-	0xa1, 0x9c, 0x05, 0x8d, 0xbd, 0xd6, 0x4e, 0xa1, 0x2c, 0x5f, 0x5d, 0xa8, 0x04, 0xd7, 0xf7, 0x7c,
-	0x7e, 0xff, 0x7b, 0xca, 0x78, 0x35, 0x87, 0xca, 0x00, 0x7b, 0x3e, 0xdf, 0x0f, 0x08, 0x23, 0x1e,
-	0xaf, 0x6a, 0x08, 0x60, 0xe6, 0x33, 0xaf, 0x4e, 0xd9, 0xd3, 0xea, 0x14, 0x9a, 0x8b, 0x15, 0x89,
-	0xe9, 0x34, 0xbc, 0x07, 0xc4, 0xf5, 0x83, 0x93, 0x6a, 0x3e, 0x74, 0x4f, 0x46, 0x05, 0x54, 0x85,
-	0x52, 0x62, 0xb2, 0xbb, 0xff, 0xb0, 0x3a, 0x8d, 0x8a, 0x30, 0x1d, 0x7d, 0xce, 0x6c, 0x3e, 0x2f,
-	0x42, 0x49, 0xf4, 0x9a, 0x83, 0xe8, 0x3d, 0x83, 0x2c, 0x28, 0xa5, 0xdf, 0x11, 0xe8, 0xae, 0xea,
-	0xa6, 0x55, 0xbc, 0x75, 0xf4, 0x95, 0xd1, 0x86, 0x51, 0x91, 0x71, 0x0e, 0x3d, 0x81, 0x8a, 0x2c,
-	0xde, 0x19, 0x5a, 0x55, 0xb9, 0x2b, 0x1f, 0x10, 0xfa, 0xda, 0x38, 0xa6, 0x09, 0x56, 0x1b, 0xca,
-	0x92, 0x4a, 0x64, 0x68, 0x65, 0x98, 0x7f, 0xf6, 0x9e, 0xd5, 0x57, 0xc7, 0xb0, 0x4c, 0x80, 0xbe,
-	0x84, 0xb2, 0x24, 0x2b, 0x86, 0x00, 0xa9, 0xa4, 0x87, 0x7e, 0xde, 0x3e, 0xc3, 0x39, 0xd4, 0x84,
-	0x9b, 0x59, 0x29, 0xc0, 0xd0, 0xba, 0xba, 0xe0, 0x4a, 0xc5, 0x30, 0x0a, 0xe0, 0x28, 0xe2, 0x7e,
-	0x56, 0x40, 0xf5, 0x7a, 0x28, 0xdf, 0x3e, 0xa3, 0x62, 0x7f, 0x93, 0x90, 0x4f, 0x85, 0x7f, 0xef,
-	0x1c, 0xf2, 0x17, 0x46, 0x68, 0x01, 0x1a, 0xd4, 0x1f, 0x48, 0x57, 0x3a, 0xdd, 0x77, 0xbb, 0xfc,
-	0x44, 0xaf, 0xa9, 0xe0, 0x87, 0x6b, 0x18, 0x9c, 0x43, 0x8f, 0x00, 0xed, 0x12, 0x7e, 0x48, 0x5d,
-	0x72, 0x48, 0xad, 0xa7, 0xe3, 0x60, 0x64, 0x34, 0x6a, 0x3c, 0x38, 0xe0, 0x01, 0xf5, 0xda, 0xd2,
-	0xb6, 0x99, 0xdf, 0x25, 0xa2, 0x25, 0x50, 0xc6, 0xa9, 0xc5, 0x5e, 0x60, 0x68, 0x5f, 0x70, 0xce,
-	0xbe, 0x58, 0xd6, 0xc6, 0xd1, 0xce, 0x71, 0xe1, 0xd7, 0xc7, 0xb2, 0x4d, 0x00, 0x8f, 0x04, 0x60,
-	0xa6, 0xcf, 0x9d, 0x9b, 0xc9, 0x98, 0xbd, 0x12, 0xe7, 0x36, 0xff, 0x9b, 0x86, 0xa2, 0x58, 0x1b,
-	0xd1, 0x96, 0x5e, 0xda, 0x72, 0x1c, 0x42, 0x25, 0x5e, 0x8e, 0x17, 0xb9, 0x12, 0xcd, 0x0b, 0x17,
-	0x46, 0x59, 0xf9, 0x21, 0xd7, 0x16, 0xce, 0xa1, 0xc7, 0x50, 0xc9, 0xc8, 0x5b, 0x75, 0x7f, 0x18,
-	0xa2, 0x81, 0x47, 0x9d, 0x30, 0x0b, 0xd0, 0xa0, 0x2e, 0x45, 0x35, 0xf5, 0x21, 0x1e, 0xa6, 0x5f,
-	0x47, 0x81, 0x7c, 0x0d, 0x95, 0x8c, 0x3e, 0x54, 0xef, 0x55, 0xb5, 0x88, 0x1c, 0x15, 0xfd, 0x21,
-	0x94, 0x52, 0x82, 0x90, 0xa1, 0x3b, 0xc3, 0x1a, 0x9c, 0x2c, 0x7c, 0x46, 0x85, 0xfd, 0x0a, 0x2a,
-	0xb2, 0x60, 0x1a, 0x72, 0x95, 0x29, 0x55, 0xd5, 0x88, 0xe0, 0xdb, 0x5b, 0x47, 0x9f, 0xb4, 0x29,
-	0xef, 0xf4, 0x5a, 0xe1, 0x9f, 0x8d, 0x53, 0xea, 0x38, 0xf4, 0x94, 0x13, 0xab, 0xb3, 0x11, 0x79,
-	0xbd, 0x6f, 0x53, 0xc6, 0x03, 0xda, 0xea, 0x71, 0x62, 0x6f, 0xf4, 0x8f, 0xce, 0x86, 0x08, 0xb5,
-	0x21, 0x50, 0xbb, 0xad, 0xd6, 0x8c, 0x18, 0xde, 0xfb, 0x3f, 0x00, 0x00, 0xff, 0xff, 0x3a, 0x16,
-	0x3b, 0xb4, 0x0b, 0x15, 0x00, 0x00,
+	0x14, 0xf6, 0xc6, 0x3f, 0xad, 0x4f, 0x5c, 0xdb, 0x9d, 0xe6, 0x4f, 0x0b, 0xaa, 0xca, 0x00, 0x6d,
+	0x7e, 0xc0, 0x46, 0xae, 0x84, 0xb8, 0x02, 0x25, 0x71, 0x15, 0x59, 0xa2, 0x21, 0x5d, 0xa7, 0xaa,
+	0x08, 0x54, 0x66, 0xbd, 0x3b, 0xb5, 0xa7, 0xdd, 0x1f, 0x77, 0x67, 0x1c, 0x48, 0x6e, 0x00, 0x89,
+	0x6b, 0x78, 0x06, 0x04, 0xa2, 0x12, 0x37, 0x3c, 0x10, 0x57, 0x3c, 0x02, 0x6f, 0x80, 0x76, 0x76,
+	0xbd, 0xd9, 0x5d, 0x8f, 0x63, 0xa7, 0x6e, 0x1b, 0xee, 0x76, 0x66, 0xcf, 0x39, 0xdf, 0x77, 0xce,
+	0xcc, 0x9c, 0xf9, 0x06, 0x6e, 0x3c, 0x1f, 0x12, 0xef, 0xa4, 0xc3, 0x88, 0x77, 0x4c, 0x0d, 0x52,
+	0x1b, 0x78, 0x2e, 0x77, 0x11, 0xb2, 0xa9, 0x75, 0x3c, 0x64, 0xc1, 0xa8, 0x26, 0x2c, 0xd4, 0x92,
+	0xe1, 0xda, 0xb6, 0xeb, 0x04, 0x73, 0x6a, 0x29, 0x6e, 0xa1, 0x96, 0xa9, 0xc3, 0x89, 0xe7, 0xe8,
+	0x56, 0x38, 0x46, 0xa6, 0xce, 0xf5, 0x64, 0x4c, 0xfc, 0x3d, 0xdc, 0xd0, 0x48, 0x8f, 0x32, 0x4e,
+	0xbc, 0x7d, 0xd7, 0x24, 0x1a, 0x79, 0x3e, 0x24, 0x8c, 0xa3, 0x8f, 0x20, 0xd7, 0xd5, 0x19, 0x59,
+	0x53, 0x6e, 0x29, 0xeb, 0x8b, 0x8d, 0xb7, 0x6b, 0x09, 0xe4, 0x10, 0xf2, 0x3e, 0xeb, 0xed, 0xe8,
+	0x8c, 0x68, 0xc2, 0x12, 0x7d, 0x0c, 0x57, 0x74, 0xd3, 0xf4, 0x08, 0x63, 0x6b, 0x0b, 0xe7, 0x38,
+	0x6d, 0x07, 0x36, 0xda, 0xc8, 0x18, 0xff, 0xa2, 0xc0, 0x52, 0x92, 0x01, 0x1b, 0xb8, 0x0e, 0x23,
+	0xe8, 0x2e, 0x14, 0x18, 0xd7, 0xf9, 0x90, 0x85, 0x24, 0xde, 0x92, 0xc6, 0x6b, 0x0b, 0x13, 0x2d,
+	0x34, 0x45, 0x3b, 0xb0, 0x48, 0x1d, 0xca, 0x3b, 0x03, 0xdd, 0xd3, 0xed, 0x11, 0x93, 0x77, 0x92,
+	0x9e, 0x51, 0x55, 0x5a, 0x0e, 0xe5, 0x07, 0xc2, 0x50, 0x03, 0x1a, 0x7d, 0xe3, 0xc7, 0xb0, 0xdc,
+	0xee, 0xbb, 0xdf, 0xee, 0xba, 0x96, 0x45, 0x0c, 0x4e, 0x5d, 0xe7, 0xe5, 0x8b, 0x82, 0x20, 0x67,
+	0x76, 0x5b, 0x4d, 0xc1, 0x23, 0xab, 0x89, 0x6f, 0xcc, 0x60, 0x25, 0x1d, 0x7e, 0x9e, 0x8c, 0xdf,
+	0x83, 0x6b, 0x46, 0x14, 0xaa, 0xd5, 0xf4, 0x73, 0xce, 0xae, 0x67, 0xb5, 0xe4, 0x24, 0xfe, 0x51,
+	0x81, 0xe5, 0xcf, 0x5d, 0xdd, 0x7c, 0x4d, 0x49, 0x21, 0x0c, 0xa5, 0x38, 0xe0, 0x5a, 0x56, 0xfc,
+	0x4b, 0xcc, 0xe1, 0x9f, 0x14, 0x58, 0xd3, 0x88, 0x45, 0x74, 0x46, 0x2e, 0x93, 0xc6, 0x0f, 0x0a,
+	0x2c, 0xf9, 0x0b, 0x70, 0xa0, 0x7b, 0x9c, 0x5e, 0x0e, 0x85, 0x41, 0xb0, 0xc3, 0x62, 0x0c, 0xe6,
+	0xd9, 0x01, 0x18, 0x4a, 0x83, 0x51, 0xa4, 0xb3, 0x0d, 0x90, 0x98, 0xc3, 0x36, 0x54, 0x22, 0x34,
+	0xdf, 0x9d, 0x30, 0x74, 0x0b, 0x16, 0x63, 0x26, 0x02, 0x30, 0xab, 0xc5, 0xa7, 0xd0, 0x27, 0x90,
+	0xf7, 0x21, 0x88, 0xc8, 0xaf, 0xdc, 0xc0, 0xb5, 0xf1, 0xfe, 0x53, 0x4b, 0x46, 0xd5, 0x02, 0x07,
+	0xfc, 0x87, 0x02, 0x2b, 0x29, 0xbc, 0x37, 0x5e, 0xe5, 0xb1, 0xba, 0xe4, 0x24, 0x75, 0xf9, 0x53,
+	0x81, 0xd5, 0x31, 0xa2, 0xf3, 0x2c, 0xc6, 0x11, 0xac, 0x44, 0x00, 0x1d, 0x93, 0x30, 0xc3, 0xa3,
+	0x03, 0xff, 0x3b, 0x58, 0x96, 0xc5, 0xc6, 0xbb, 0xd3, 0x8b, 0xc8, 0xb4, 0xe5, 0x28, 0x44, 0x33,
+	0x16, 0x01, 0xff, 0xae, 0xc0, 0x92, 0x7f, 0x88, 0x2f, 0x6f, 0xe7, 0xce, 0x54, 0xd3, 0x17, 0x0a,
+	0xac, 0x86, 0xe7, 0xfc, 0x7f, 0xce, 0xf4, 0x57, 0x05, 0xd4, 0x5d, 0x8f, 0xe8, 0x9c, 0x3c, 0xf0,
+	0xd7, 0x61, 0xb7, 0xaf, 0x3b, 0x0e, 0xb1, 0xe6, 0xdb, 0x00, 0x77, 0xa0, 0xe2, 0x05, 0xc9, 0x76,
+	0x8c, 0x20, 0x9e, 0xa0, 0x5e, 0xd4, 0xca, 0xe1, 0x74, 0x88, 0x82, 0xde, 0x87, 0xb2, 0x47, 0xd8,
+	0xd0, 0x3a, 0xb3, 0xcb, 0x0a, 0xbb, 0x6b, 0xc1, 0x6c, 0x68, 0x86, 0x7f, 0x53, 0x60, 0x75, 0xdb,
+	0x34, 0xe3, 0x04, 0xe7, 0x38, 0x4b, 0x5b, 0x70, 0x3d, 0xc5, 0x2e, 0x2c, 0x6d, 0x51, 0xab, 0x26,
+	0xf9, 0xb5, 0x9a, 0x68, 0x03, 0xaa, 0x49, 0x86, 0x61, 0xa9, 0x8b, 0x5a, 0x25, 0xc1, 0xb1, 0xd5,
+	0xc4, 0x7f, 0x2b, 0xa0, 0x6a, 0xc4, 0x76, 0x8f, 0x89, 0x94, 0xe8, 0x4b, 0x55, 0x72, 0x94, 0xdd,
+	0xc2, 0x7c, 0xd9, 0x65, 0x2f, 0x90, 0x5d, 0x4e, 0x9e, 0xdd, 0x53, 0x58, 0x79, 0xa4, 0x73, 0xa3,
+	0xdf, 0xb4, 0xe7, 0x5f, 0x81, 0x9b, 0x00, 0x11, 0x5e, 0xd0, 0x14, 0x8a, 0x5a, 0x6c, 0x06, 0xff,
+	0xb5, 0x00, 0xc8, 0x3f, 0xe4, 0x6d, 0xd2, 0xb3, 0x89, 0xc3, 0xdf, 0xfc, 0xc1, 0x49, 0xdd, 0x0b,
+	0xb9, 0xf1, 0x7b, 0xe1, 0x26, 0x00, 0x0b, 0xd8, 0xf9, 0x29, 0xe4, 0xc5, 0xc1, 0x8a, 0xcd, 0x20,
+	0x15, 0xae, 0x3e, 0xa1, 0xc4, 0x32, 0xfd, 0xbf, 0x05, 0xf1, 0x37, 0x1a, 0xa3, 0x07, 0x80, 0x2c,
+	0x9d, 0xf1, 0x4e, 0x68, 0xde, 0x09, 0x2e, 0x98, 0x2b, 0x22, 0xab, 0x54, 0x6f, 0xf4, 0xd5, 0x6a,
+	0x2d, 0x2c, 0x83, 0x68, 0x8c, 0x2d, 0xe7, 0x89, 0xab, 0x55, 0x7d, 0xf7, 0xf8, 0x2c, 0xfe, 0x47,
+	0x81, 0xe5, 0xb0, 0xdf, 0x5c, 0x5a, 0xd1, 0x66, 0xe8, 0x36, 0xf3, 0x94, 0x0d, 0xff, 0xac, 0xc0,
+	0xea, 0xae, 0x6b, 0x0f, 0x5c, 0x67, 0x94, 0xf6, 0x9c, 0xf7, 0xd4, 0xa7, 0x81, 0x13, 0x19, 0x69,
+	0xe4, 0xdb, 0x13, 0x34, 0x72, 0x1a, 0x34, 0xf4, 0xda, 0x3c, 0x85, 0x72, 0xf2, 0xd6, 0x42, 0x25,
+	0xb8, 0xba, 0xef, 0xf2, 0x7b, 0xdf, 0x51, 0xc6, 0xab, 0x19, 0x54, 0x06, 0xd8, 0x77, 0xf9, 0x81,
+	0x47, 0x18, 0x71, 0x78, 0x55, 0x41, 0x00, 0x85, 0x2f, 0x9c, 0x26, 0x65, 0xcf, 0xaa, 0x0b, 0xe8,
+	0x46, 0x28, 0x46, 0x74, 0xab, 0xe5, 0xdc, 0x27, 0xb6, 0xeb, 0x9d, 0x54, 0xb3, 0xbe, 0x7b, 0x34,
+	0xca, 0xa1, 0x2a, 0x94, 0x22, 0x93, 0xbd, 0x83, 0x87, 0xd5, 0x3c, 0x2a, 0x42, 0x3e, 0xf8, 0x2c,
+	0x34, 0x5e, 0x14, 0xa1, 0x24, 0xda, 0x4c, 0x3b, 0x78, 0xca, 0x20, 0x03, 0x4a, 0xf1, 0x27, 0x04,
+	0xba, 0x23, 0xbb, 0x64, 0x25, 0xcf, 0x1c, 0x75, 0x7d, 0xba, 0x61, 0x50, 0x64, 0x9c, 0x41, 0x4f,
+	0xa1, 0x92, 0xd4, 0xed, 0x0c, 0x6d, 0xc8, 0xdc, 0xa5, 0x6f, 0x07, 0x75, 0x73, 0x16, 0xd3, 0x08,
+	0xab, 0x07, 0xe5, 0x84, 0x40, 0x64, 0x68, 0x7d, 0x92, 0x7f, 0xfa, 0x8a, 0x55, 0x37, 0x66, 0xb0,
+	0x8c, 0x80, 0xbe, 0x84, 0x72, 0x42, 0x51, 0x4c, 0x00, 0x92, 0xa9, 0x0e, 0xf5, 0xbc, 0x7d, 0x86,
+	0x33, 0xa8, 0x03, 0xd7, 0xd3, 0x2a, 0x80, 0xa1, 0x2d, 0x79, 0xc1, 0xa5, 0x62, 0x61, 0x1a, 0xc0,
+	0x51, 0xc0, 0xfd, 0xac, 0x80, 0xf2, 0xf5, 0x90, 0x3e, 0x7b, 0xa6, 0xc5, 0xfe, 0x26, 0x22, 0x1f,
+	0x0b, 0xff, 0xc1, 0x39, 0xe4, 0x2f, 0x8c, 0xd0, 0x05, 0x34, 0x2e, 0x3d, 0x90, 0x2a, 0x75, 0xba,
+	0x67, 0x0f, 0xf8, 0x89, 0x5a, 0x93, 0xc1, 0x4f, 0x96, 0x2f, 0x38, 0x83, 0x1e, 0x01, 0xda, 0x23,
+	0xfc, 0x90, 0xda, 0xe4, 0x90, 0x1a, 0xcf, 0x66, 0xc1, 0x48, 0xb5, 0xe0, 0x70, 0xd0, 0xe6, 0x1e,
+	0x75, 0x7a, 0x89, 0x6d, 0xb3, 0xb4, 0x47, 0x44, 0x4b, 0xa0, 0x8c, 0x53, 0x83, 0xbd, 0xc2, 0xd0,
+	0xae, 0xe0, 0x9c, 0x7e, 0xac, 0x6c, 0xce, 0x22, 0x9b, 0xc3, 0xc2, 0x6f, 0xcd, 0x64, 0x1b, 0x01,
+	0x1e, 0x09, 0xc0, 0x54, 0x9f, 0x3b, 0x37, 0x93, 0x19, 0x7b, 0x25, 0xce, 0x34, 0xfe, 0xcd, 0x43,
+	0x51, 0xac, 0x8d, 0x68, 0x4b, 0xaf, 0x6d, 0x39, 0x0e, 0xa1, 0x12, 0x2e, 0xc7, 0xab, 0x5c, 0x89,
+	0xce, 0x85, 0x0b, 0x23, 0xad, 0xfc, 0x84, 0x6b, 0x0b, 0x67, 0xd0, 0x63, 0xa8, 0xa4, 0x94, 0xad,
+	0xbc, 0x3f, 0x4c, 0x90, 0xbf, 0xd3, 0x4e, 0x98, 0x01, 0x68, 0x5c, 0x92, 0xa2, 0x9a, 0xfc, 0x10,
+	0x4f, 0x92, 0xae, 0xd3, 0x40, 0xbe, 0x86, 0x4a, 0x4a, 0x1a, 0xca, 0xf7, 0xaa, 0x5c, 0x3f, 0x4e,
+	0x8b, 0xfe, 0x10, 0x4a, 0x31, 0x2d, 0xc8, 0xd0, 0xed, 0x49, 0x0d, 0x2e, 0x29, 0x7c, 0xa6, 0x85,
+	0xfd, 0x0a, 0x2a, 0x49, 0xc1, 0x34, 0xe1, 0x2a, 0x93, 0xaa, 0xaa, 0x29, 0xc1, 0x77, 0xb6, 0x8f,
+	0x3e, 0xeb, 0x51, 0xde, 0x1f, 0x76, 0xfd, 0x3f, 0xf5, 0x53, 0x6a, 0x59, 0xf4, 0x94, 0x13, 0xa3,
+	0x5f, 0x0f, 0xbc, 0x3e, 0x34, 0x29, 0xe3, 0x1e, 0xed, 0x0e, 0x39, 0x31, 0xeb, 0xa3, 0xa3, 0x53,
+	0x17, 0xa1, 0xea, 0x02, 0x75, 0xd0, 0xed, 0x16, 0xc4, 0xf0, 0xee, 0x7f, 0x01, 0x00, 0x00, 0xff,
+	0xff, 0x69, 0xea, 0xe4, 0xad, 0x06, 0x15, 0x00, 0x00,
 }
 
 // Reference imports to suppress errors if they are not otherwise used.
diff --git a/internal/proxynode/impl.go b/internal/proxynode/impl.go
index 3f66c39570dd6ad7f0b505f173865a62c08d118a..495898cb2cfea3ac809f41453cd12f0914a212bc 100644
--- a/internal/proxynode/impl.go
+++ b/internal/proxynode/impl.go
@@ -80,7 +80,6 @@ func (node *NodeImpl) DropCollection(request *milvuspb.DropCollectionRequest) (*
 		Condition:             NewTaskCondition(ctx),
 		DropCollectionRequest: request,
 		masterClient:          node.masterClient,
-		dataServiceClient:     node.dataServiceClient,
 	}
 	var cancel func()
 	dct.ctx, cancel = context.WithTimeout(ctx, reqTimeoutInterval)
diff --git a/internal/proxynode/interface.go b/internal/proxynode/interface.go
index aedd6bc438d175bba593e1ddd72548e44bc4cec7..8c7846564154ac87e76b827a06ca734350c71d53 100644
--- a/internal/proxynode/interface.go
+++ b/internal/proxynode/interface.go
@@ -47,6 +47,7 @@ type QueryServiceClient interface {
 type DataServiceClient interface {
 	AssignSegmentID(req *datapb.AssignSegIDRequest) (*datapb.AssignSegIDResponse, error)
 	GetInsertChannels(req *datapb.InsertChannelRequest) ([]string, error)
+	Flush(req *datapb.FlushRequest) (*commonpb.Status, error)
 
 	GetComponentStates() (*internalpb2.ComponentStates, error)
 }
diff --git a/internal/proxynode/task.go b/internal/proxynode/task.go
index a2ca45a71e97f25cbbed87bff1aee0f194308b77..5ecea9b25631b5900182af4faae260d3ef36fe66 100644
--- a/internal/proxynode/task.go
+++ b/internal/proxynode/task.go
@@ -364,10 +364,9 @@ func (cct *CreateCollectionTask) PostExecute() error {
 type DropCollectionTask struct {
 	Condition
 	*milvuspb.DropCollectionRequest
-	masterClient      MasterClient
-	dataServiceClient DataServiceClient
-	result            *commonpb.Status
-	ctx               context.Context
+	masterClient MasterClient
+	result       *commonpb.Status
+	ctx          context.Context
 }
 
 func (dct *DropCollectionTask) OnEnqueue() error {
@@ -1376,3 +1375,70 @@ func (dipt *GetIndexStateTask) Execute() error {
 func (dipt *GetIndexStateTask) PostExecute() error {
 	return nil
 }
+
+type FlushTask struct {
+	Condition
+	*milvuspb.FlushRequest
+	dataServiceClient DataServiceClient
+	result            *commonpb.Status
+	ctx               context.Context
+}
+
+func (ft *FlushTask) OnEnqueue() error {
+	ft.Base = &commonpb.MsgBase{}
+	return nil
+}
+
+func (ft *FlushTask) ID() UniqueID {
+	return ft.Base.MsgID
+}
+
+func (ft *FlushTask) SetID(uid UniqueID) {
+	ft.Base.MsgID = uid
+}
+
+func (ft *FlushTask) Type() commonpb.MsgType {
+	return ft.Base.MsgType
+}
+
+func (ft *FlushTask) BeginTs() Timestamp {
+	return ft.Base.Timestamp
+}
+
+func (ft *FlushTask) EndTs() Timestamp {
+	return ft.Base.Timestamp
+}
+
+func (ft *FlushTask) SetTs(ts Timestamp) {
+	ft.Base.Timestamp = ts
+}
+
+func (ft *FlushTask) PreExecute() error {
+	ft.Base.MsgType = commonpb.MsgType_kFlush
+	ft.Base.SourceID = Params.ProxyID
+	return nil
+}
+
+func (ft *FlushTask) Execute() error {
+	var err error
+	collID, err := globalMetaCache.GetCollectionID(ft.CollectionName)
+	if err != nil {
+		return err
+	}
+	flushReq := &datapb.FlushRequest{
+		Base: &commonpb.MsgBase{
+			MsgType:   commonpb.MsgType_kFlush,
+			MsgID:     ft.Base.MsgID,
+			Timestamp: ft.Base.Timestamp,
+			SourceID:  ft.Base.SourceID,
+		},
+		DbID:         0,
+		CollectionID: collID,
+	}
+	ft.result, err = ft.dataServiceClient.Flush(flushReq)
+	return err
+}
+
+func (ft *FlushTask) PostExecute() error {
+	return nil
+}
diff --git a/internal/proxyservice/timesync.go b/internal/proxyservice/timesync.go
index 34140eec383c41b9e0194c48ea5ccd6b9f73f16f..c5b3b094c8472caf3603239604fcd529dd5297d1 100644
--- a/internal/proxyservice/timesync.go
+++ b/internal/proxyservice/timesync.go
@@ -67,7 +67,7 @@ func (ttBarrier *softTimeTickBarrier) GetTimeTick() (Timestamp, error) {
 			}
 		}
 		atomic.StoreInt64(&(ttBarrier.lastTt), int64(ts))
-		log.Println("current tick: ", ts)
+		// log.Println("current tick: ", ts)
 		return ts, ttBarrier.ctx.Err()
 	}
 }
@@ -95,8 +95,8 @@ func (ttBarrier *softTimeTickBarrier) Start() error {
 							log.Printf("[softTimeTickBarrier] Warning: peerID %d not exist\n", ttmsg.Base.SourceID)
 							continue
 						}
-						log.Println("ttmsg.Base.Timestamp: ", ttmsg.Base.Timestamp)
-						log.Println("oldT: ", oldT)
+						// log.Println("ttmsg.Base.Timestamp: ", ttmsg.Base.Timestamp)
+						// log.Println("oldT: ", oldT)
 						if ttmsg.Base.Timestamp > oldT {
 							ttBarrier.peer2LastTt[ttmsg.Base.SourceID] = ttmsg.Base.Timestamp
 
diff --git a/internal/queryservice/queryservice.go b/internal/queryservice/queryservice.go
index 942407fcbdc0f0f88e379169d5c116ffa940bbed..c7a5c85af9c5c0159e52164ff830f920f3d3878f 100644
--- a/internal/queryservice/queryservice.go
+++ b/internal/queryservice/queryservice.go
@@ -269,19 +269,22 @@ func (qs *QueryService) LoadPartitions(req *querypb.LoadPartitionRequest) (*comm
 			log.Fatal("showSegment fail, v%", showSegmentResponse.Status.Reason)
 		}
 		segmentIDs := showSegmentResponse.SegmentIDs
-		segmentStates := make(map[UniqueID]*datapb.SegmentStatesResponse)
+		segmentStates := make(map[UniqueID]*datapb.SegmentStateInfo)
 		channel2id := make(map[string]int)
 		//id2channels := make(map[int][]string)
 		id2segs := make(map[int][]UniqueID)
 		offset := 0
 
-		for _, segmentID := range segmentIDs {
-			state, err := qs.dataServiceClient.GetSegmentStates(&datapb.SegmentStatesRequest{
-				SegmentID: segmentID,
-			})
-			if err != nil {
-				log.Fatal("get segment states fail")
-			}
+		resp, err := qs.dataServiceClient.GetSegmentStates(&datapb.SegmentStatesRequest{
+			SegmentIDs: segmentIDs,
+		})
+
+		if err != nil {
+			log.Fatal("get segment states fail")
+		}
+
+		for _, state := range resp.States {
+			segmentID := state.SegmentID
 			segmentStates[segmentID] = state
 			var flatChannelName string
 			channelNames := make([]string, 0)
diff --git a/internal/queryservice/queryservice_test.go b/internal/queryservice/queryservice_test.go
index d6319cf5c51dfac75e057f5197cfc28245d6bcf2..1193eb382fb0dff173632bd4519644a5452c1ec3 100644
--- a/internal/queryservice/queryservice_test.go
+++ b/internal/queryservice/queryservice_test.go
@@ -91,7 +91,7 @@ func (master *masterMock) ShowSegments(in *milvuspb.ShowSegmentRequest) (*milvus
 
 type dataMock struct {
 	segmentIDs    []UniqueID
-	segmentStates map[UniqueID]*datapb.SegmentStatesResponse
+	segmentStates map[UniqueID]*datapb.SegmentStateInfo
 }
 
 func newDataMock() *dataMock {
@@ -110,23 +110,24 @@ func newDataMock() *dataMock {
 	segmentIDs = append(segmentIDs, 5)
 	segmentIDs = append(segmentIDs, 6)
 
-	fillStates := func(time uint64, position []*internalpb2.MsgPosition, state datapb.SegmentState) *datapb.SegmentStatesResponse {
-		return &datapb.SegmentStatesResponse{
+	fillStates := func(segmentID UniqueID, time uint64, position []*internalpb2.MsgPosition, state datapb.SegmentState) *datapb.SegmentStateInfo {
+		return &datapb.SegmentStateInfo{
 			Status: &commonpb.Status{
 				ErrorCode: commonpb.ErrorCode_SUCCESS,
 			},
+			SegmentID:      segmentID,
 			State:          state,
 			CreateTime:     time,
 			StartPositions: position,
 		}
 	}
-	segmentStates := make(map[UniqueID]*datapb.SegmentStatesResponse)
-	segmentStates[1] = fillStates(1, positions1, datapb.SegmentState_SegmentFlushed)
-	segmentStates[2] = fillStates(2, positions2, datapb.SegmentState_SegmentFlushed)
-	segmentStates[3] = fillStates(3, positions1, datapb.SegmentState_SegmentFlushed)
-	segmentStates[4] = fillStates(4, positions2, datapb.SegmentState_SegmentFlushed)
-	segmentStates[5] = fillStates(5, positions1, datapb.SegmentState_SegmentGrowing)
-	segmentStates[6] = fillStates(6, positions2, datapb.SegmentState_SegmentGrowing)
+	segmentStates := make(map[UniqueID]*datapb.SegmentStateInfo)
+	segmentStates[1] = fillStates(1, 1, positions1, datapb.SegmentState_SegmentFlushed)
+	segmentStates[2] = fillStates(2, 2, positions2, datapb.SegmentState_SegmentFlushed)
+	segmentStates[3] = fillStates(3, 3, positions1, datapb.SegmentState_SegmentFlushed)
+	segmentStates[4] = fillStates(4, 4, positions2, datapb.SegmentState_SegmentFlushed)
+	segmentStates[5] = fillStates(5, 5, positions1, datapb.SegmentState_SegmentGrowing)
+	segmentStates[6] = fillStates(6, 6, positions2, datapb.SegmentState_SegmentGrowing)
 
 	return &dataMock{
 		segmentIDs:    segmentIDs,
@@ -135,13 +136,24 @@ func newDataMock() *dataMock {
 }
 
 func (data *dataMock) GetSegmentStates(req *datapb.SegmentStatesRequest) (*datapb.SegmentStatesResponse, error) {
-	segmentID := req.SegmentID
-	for _, id := range data.segmentIDs {
-		if segmentID == id {
-			return data.segmentStates[id], nil
+	ret := &datapb.SegmentStatesResponse{
+		Status: &commonpb.Status{
+			ErrorCode: commonpb.ErrorCode_SUCCESS,
+		},
+	}
+	for _, segID := range req.SegmentIDs {
+		for _, segmentID := range data.segmentIDs {
+			if segmentID == segID {
+				ret.States = append(ret.States, data.segmentStates[segmentID])
+			}
 		}
 	}
-	return nil, errors.New("segment id not found")
+
+	if ret.States == nil {
+		return nil, errors.New("segment id not found")
+	}
+
+	return ret, nil
 }
 
 func TestQueryService_Init(t *testing.T) {