diff --git a/internal/distributed/querynode/client/client.go b/internal/distributed/querynode/client/client.go
index c284bd2c38..16e97e5175 100644
--- a/internal/distributed/querynode/client/client.go
+++ b/internal/distributed/querynode/client/client.go
@@ -93,6 +93,14 @@ func (c *Client) LoadSegments(in *querypb.LoadSegmentRequest) (*commonpb.Status,
 	return c.grpcClient.LoadSegments(context.TODO(), in)
 }
 
+func (c *Client) ReleaseCollection(in *querypb.ReleaseCollectionRequest) (*commonpb.Status, error) {
+	return c.grpcClient.ReleaseCollection(context.TODO(), in)
+}
+
+func (c *Client) ReleasePartitions(in *querypb.ReleasePartitionRequest) (*commonpb.Status, error) {
+	return c.grpcClient.ReleasePartitions(context.TODO(), in)
+}
+
 func (c *Client) ReleaseSegments(in *querypb.ReleaseSegmentRequest) (*commonpb.Status, error) {
 	return c.grpcClient.ReleaseSegments(context.TODO(), in)
 }
diff --git a/internal/distributed/querynode/service.go b/internal/distributed/querynode/service.go
index 8842d774bc..d8a2547982 100644
--- a/internal/distributed/querynode/service.go
+++ b/internal/distributed/querynode/service.go
@@ -317,6 +317,16 @@ func (s *Server) LoadSegments(ctx context.Context, in *querypb.LoadSegmentReques
 	return s.impl.LoadSegments(in)
 }
 
+func (s *Server) ReleaseCollection(ctx context.Context, in *querypb.ReleaseCollectionRequest) (*commonpb.Status, error) {
+	// ignore ctx
+	return s.impl.ReleaseCollection(in)
+}
+
+func (s *Server) ReleasePartitions(ctx context.Context, in *querypb.ReleasePartitionRequest) (*commonpb.Status, error) {
+	// ignore ctx
+	return s.impl.ReleasePartitions(in)
+}
+
 func (s *Server) ReleaseSegments(ctx context.Context, in *querypb.ReleaseSegmentRequest) (*commonpb.Status, error) {
 	// ignore ctx
 	return s.impl.ReleaseSegments(in)
diff --git a/internal/indexnode/index.go b/internal/indexnode/index.go
index e677d0ab51..70448b20d9 100644
--- a/internal/indexnode/index.go
+++ b/internal/indexnode/index.go
@@ -165,9 +165,9 @@ func (index *CIndex) Load(blobs []*Blob) error {
 		binarySet.Datas = append(binarySet.Datas, &indexcgopb.Binary{Key: blob.Key, Value: blob.Value})
 	}
 
-	datas, err := proto.Marshal(binarySet)
-	if err != nil {
-		return err
+	datas, err2 := proto.Marshal(binarySet)
+	if err2 != nil {
+		return err2
 	}
 
 	/*
diff --git a/internal/proto/query_service.proto b/internal/proto/query_service.proto
index 49eff02510..22a650ee27 100644
--- a/internal/proto/query_service.proto
+++ b/internal/proto/query_service.proto
@@ -193,6 +193,8 @@ service QueryNode {
   rpc RemoveQueryChannel(RemoveQueryChannelsRequest) returns (common.Status) {}
   rpc WatchDmChannels(WatchDmChannelsRequest) returns (common.Status) {}
   rpc LoadSegments(LoadSegmentRequest) returns (common.Status) {}
+  rpc ReleaseCollection(ReleaseCollectionRequest) returns (common.Status) {}
+  rpc ReleasePartitions(ReleasePartitionRequest) returns (common.Status) {}
   rpc ReleaseSegments(ReleaseSegmentRequest) returns (common.Status) {}
   rpc GetSegmentInfo(SegmentInfoRequest) returns (SegmentInfoResponse) {}
 }
diff --git a/internal/proto/querypb/query_service.pb.go b/internal/proto/querypb/query_service.pb.go
index f72f138911..cd00cdc768 100644
--- a/internal/proto/querypb/query_service.pb.go
+++ b/internal/proto/querypb/query_service.pb.go
@@ -1420,93 +1420,94 @@ func init() {
 func init() { proto.RegisterFile("query_service.proto", fileDescriptor_5fcb6756dc1afb8d) }
 
 var fileDescriptor_5fcb6756dc1afb8d = []byte{
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+	// 1379 bytes of a gzipped FileDescriptorProto
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+	0x8c, 0xef, 0x9c, 0x93, 0xe7, 0x86, 0x9b, 0x37, 0x76, 0x3f, 0x6c, 0x53, 0xde, 0xe9, 0xb7, 0x02,
+	0xf8, 0x8d, 0x7d, 0xda, 0xed, 0xd2, 0x7d, 0x4e, 0xac, 0xce, 0x46, 0x68, 0xe1, 0x2d, 0x9b, 0x32,
+	0xee, 0xd3, 0x56, 0x9f, 0x13, 0x7b, 0x63, 0xc0, 0x63, 0x1b, 0xc2, 0xec, 0x86, 0x30, 0xdb, 0x6b,
+	0xb5, 0x72, 0xe2, 0x78, 0xfd, 0xdf, 0x00, 0x00, 0x00, 0xff, 0xff, 0xb4, 0xe5, 0x98, 0xdb, 0x26,
+	0x19, 0x00, 0x00,
 }
 
 // Reference imports to suppress errors if they are not otherwise used.
@@ -2032,6 +2033,8 @@ type QueryNodeClient interface {
 	RemoveQueryChannel(ctx context.Context, in *RemoveQueryChannelsRequest, opts ...grpc.CallOption) (*commonpb.Status, error)
 	WatchDmChannels(ctx context.Context, in *WatchDmChannelsRequest, opts ...grpc.CallOption) (*commonpb.Status, error)
 	LoadSegments(ctx context.Context, in *LoadSegmentRequest, opts ...grpc.CallOption) (*commonpb.Status, error)
+	ReleaseCollection(ctx context.Context, in *ReleaseCollectionRequest, opts ...grpc.CallOption) (*commonpb.Status, error)
+	ReleasePartitions(ctx context.Context, in *ReleasePartitionRequest, opts ...grpc.CallOption) (*commonpb.Status, error)
 	ReleaseSegments(ctx context.Context, in *ReleaseSegmentRequest, opts ...grpc.CallOption) (*commonpb.Status, error)
 	GetSegmentInfo(ctx context.Context, in *SegmentInfoRequest, opts ...grpc.CallOption) (*SegmentInfoResponse, error)
 }
@@ -2107,6 +2110,24 @@ func (c *queryNodeClient) LoadSegments(ctx context.Context, in *LoadSegmentReque
 	return out, nil
 }
 
+func (c *queryNodeClient) ReleaseCollection(ctx context.Context, in *ReleaseCollectionRequest, opts ...grpc.CallOption) (*commonpb.Status, error) {
+	out := new(commonpb.Status)
+	err := c.cc.Invoke(ctx, "/milvus.proto.query.QueryNode/ReleaseCollection", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *queryNodeClient) ReleasePartitions(ctx context.Context, in *ReleasePartitionRequest, opts ...grpc.CallOption) (*commonpb.Status, error) {
+	out := new(commonpb.Status)
+	err := c.cc.Invoke(ctx, "/milvus.proto.query.QueryNode/ReleasePartitions", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 func (c *queryNodeClient) ReleaseSegments(ctx context.Context, in *ReleaseSegmentRequest, opts ...grpc.CallOption) (*commonpb.Status, error) {
 	out := new(commonpb.Status)
 	err := c.cc.Invoke(ctx, "/milvus.proto.query.QueryNode/ReleaseSegments", in, out, opts...)
@@ -2134,6 +2155,8 @@ type QueryNodeServer interface {
 	RemoveQueryChannel(context.Context, *RemoveQueryChannelsRequest) (*commonpb.Status, error)
 	WatchDmChannels(context.Context, *WatchDmChannelsRequest) (*commonpb.Status, error)
 	LoadSegments(context.Context, *LoadSegmentRequest) (*commonpb.Status, error)
+	ReleaseCollection(context.Context, *ReleaseCollectionRequest) (*commonpb.Status, error)
+	ReleasePartitions(context.Context, *ReleasePartitionRequest) (*commonpb.Status, error)
 	ReleaseSegments(context.Context, *ReleaseSegmentRequest) (*commonpb.Status, error)
 	GetSegmentInfo(context.Context, *SegmentInfoRequest) (*SegmentInfoResponse, error)
 }
@@ -2163,6 +2186,12 @@ func (*UnimplementedQueryNodeServer) WatchDmChannels(ctx context.Context, req *W
 func (*UnimplementedQueryNodeServer) LoadSegments(ctx context.Context, req *LoadSegmentRequest) (*commonpb.Status, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method LoadSegments not implemented")
 }
+func (*UnimplementedQueryNodeServer) ReleaseCollection(ctx context.Context, req *ReleaseCollectionRequest) (*commonpb.Status, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method ReleaseCollection not implemented")
+}
+func (*UnimplementedQueryNodeServer) ReleasePartitions(ctx context.Context, req *ReleasePartitionRequest) (*commonpb.Status, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method ReleasePartitions not implemented")
+}
 func (*UnimplementedQueryNodeServer) ReleaseSegments(ctx context.Context, req *ReleaseSegmentRequest) (*commonpb.Status, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method ReleaseSegments not implemented")
 }
@@ -2300,6 +2329,42 @@ func _QueryNode_LoadSegments_Handler(srv interface{}, ctx context.Context, dec f
 	return interceptor(ctx, in, info, handler)
 }
 
+func _QueryNode_ReleaseCollection_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(ReleaseCollectionRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(QueryNodeServer).ReleaseCollection(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/milvus.proto.query.QueryNode/ReleaseCollection",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(QueryNodeServer).ReleaseCollection(ctx, req.(*ReleaseCollectionRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _QueryNode_ReleasePartitions_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(ReleasePartitionRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(QueryNodeServer).ReleasePartitions(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/milvus.proto.query.QueryNode/ReleasePartitions",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(QueryNodeServer).ReleasePartitions(ctx, req.(*ReleasePartitionRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
 func _QueryNode_ReleaseSegments_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
 	in := new(ReleaseSegmentRequest)
 	if err := dec(in); err != nil {
@@ -2368,6 +2433,14 @@ var _QueryNode_serviceDesc = grpc.ServiceDesc{
 			MethodName: "LoadSegments",
 			Handler:    _QueryNode_LoadSegments_Handler,
 		},
+		{
+			MethodName: "ReleaseCollection",
+			Handler:    _QueryNode_ReleaseCollection_Handler,
+		},
+		{
+			MethodName: "ReleasePartitions",
+			Handler:    _QueryNode_ReleasePartitions_Handler,
+		},
 		{
 			MethodName: "ReleaseSegments",
 			Handler:    _QueryNode_ReleaseSegments_Handler,
diff --git a/internal/proxynode/task.go b/internal/proxynode/task.go
index b24ac1e9b8..633540c1e5 100644
--- a/internal/proxynode/task.go
+++ b/internal/proxynode/task.go
@@ -555,7 +555,7 @@ func (st *SearchTask) PreExecute(ctx context.Context) error {
 	for _, partitionName := range st.query.PartitionNames {
 		partitionID, err := globalMetaCache.GetPartitionID(collectionName, partitionName)
 		if err != nil {
-			return err
+			continue
 		}
 		st.PartitionIDs = append(st.PartitionIDs, partitionID)
 	}
diff --git a/internal/querynode/collection_replica.go b/internal/querynode/collection_replica.go
index c16adaf3de..559592585b 100644
--- a/internal/querynode/collection_replica.go
+++ b/internal/querynode/collection_replica.go
@@ -12,6 +12,7 @@ package querynode
 */
 import "C"
 import (
+	"fmt"
 	"strconv"
 	"sync"
 
@@ -114,15 +115,15 @@ func (colReplica *collectionReplicaImpl) removeCollectionPrivate(collectionID Un
 		return err
 	}
 
-	deleteCollection(collection)
-	delete(colReplica.collections, collectionID)
-
 	// delete partitions
 	for _, partitionID := range collection.partitionIDs {
 		// ignore error, try to delete
 		_ = colReplica.removePartitionPrivate(partitionID)
 	}
 
+	deleteCollection(collection)
+	delete(colReplica.collections, collectionID)
+
 	return nil
 }
 
@@ -262,14 +263,15 @@ func (colReplica *collectionReplicaImpl) removePartitionPrivate(partitionID Uniq
 		return err
 	}
 
-	collection.removePartitionID(partitionID)
-	delete(colReplica.partitions, partitionID)
-
 	// delete segments
 	for _, segmentID := range partition.segmentIDs {
 		// try to delete, ignore error
 		_ = colReplica.removeSegmentPrivate(segmentID)
 	}
+
+	collection.removePartitionID(partitionID)
+	delete(colReplica.partitions, partitionID)
+
 	return nil
 }
 
@@ -390,6 +392,7 @@ func (colReplica *collectionReplicaImpl) removeSegment(segmentID UniqueID) error
 }
 
 func (colReplica *collectionReplicaImpl) removeSegmentPrivate(segmentID UniqueID) error {
+	fmt.Println("remove segment", segmentID)
 	segment, err := colReplica.getSegmentByIDPrivate(segmentID)
 	if err != nil {
 		return err
diff --git a/internal/querynode/flow_graph_dd_node.go b/internal/querynode/flow_graph_dd_node.go
index d8a519a4d3..99cd70cf60 100644
--- a/internal/querynode/flow_graph_dd_node.go
+++ b/internal/querynode/flow_graph_dd_node.go
@@ -20,7 +20,7 @@ func (ddNode *ddNode) Name() string {
 }
 
 func (ddNode *ddNode) Operate(in []*Msg) []*Msg {
-	//fmt.Println("Do filterDmNode operation")
+	//fmt.Println("Do ddNode operation")
 
 	if len(in) != 1 {
 		log.Println("Invalid operate message input in ddNode, input length = ", len(in))
diff --git a/internal/querynode/partition.go b/internal/querynode/partition.go
index 787d6fab1c..5af3377038 100644
--- a/internal/querynode/partition.go
+++ b/internal/querynode/partition.go
@@ -11,6 +11,7 @@ package querynode
 
 */
 import "C"
+import "fmt"
 
 type Partition struct {
 	collectionID UniqueID
@@ -44,5 +45,6 @@ func newPartition(collectionID UniqueID, partitionID UniqueID) *Partition {
 		enable:       false,
 	}
 
+	fmt.Println("create partition", partitionID)
 	return newPartition
 }
diff --git a/internal/querynode/query_node.go b/internal/querynode/query_node.go
index ac8b1cb8dc..da546bf5ea 100644
--- a/internal/querynode/query_node.go
+++ b/internal/querynode/query_node.go
@@ -38,6 +38,8 @@ type Node interface {
 	RemoveQueryChannel(in *queryPb.RemoveQueryChannelsRequest) (*commonpb.Status, error)
 	WatchDmChannels(in *queryPb.WatchDmChannelsRequest) (*commonpb.Status, error)
 	LoadSegments(in *queryPb.LoadSegmentRequest) (*commonpb.Status, error)
+	ReleaseCollection(in *queryPb.ReleaseCollectionRequest) (*commonpb.Status, error)
+	ReleasePartitions(in *queryPb.ReleasePartitionRequest) (*commonpb.Status, error)
 	ReleaseSegments(in *queryPb.ReleaseSegmentRequest) (*commonpb.Status, error)
 	GetSegmentInfo(in *queryPb.SegmentInfoRequest) (*queryPb.SegmentInfoResponse, error)
 }
@@ -479,34 +481,51 @@ func (node *QueryNode) LoadSegments(in *queryPb.LoadSegmentRequest) (*commonpb.S
 	}, nil
 }
 
-func (node *QueryNode) ReleaseSegments(in *queryPb.ReleaseSegmentRequest) (*commonpb.Status, error) {
-	for _, id := range in.PartitionIDs {
-		err := node.replica.enablePartition(id)
-		if err != nil {
-			status := &commonpb.Status{
-				ErrorCode: commonpb.ErrorCode_UNEXPECTED_ERROR,
-				Reason:    err.Error(),
-			}
-			return status, err
+func (node *QueryNode) ReleaseCollection(in *queryPb.ReleaseCollectionRequest) (*commonpb.Status, error) {
+	err := node.replica.removeCollection(in.CollectionID)
+	if err != nil {
+		status := &commonpb.Status{
+			ErrorCode: commonpb.ErrorCode_UNEXPECTED_ERROR,
+			Reason:    err.Error(),
 		}
+		return status, err
 	}
 
-	// release all fields in the segments
-	for _, id := range in.SegmentIDs {
-		err := node.loadService.segLoader.releaseSegment(id)
-		if err != nil {
-			status := &commonpb.Status{
-				ErrorCode: commonpb.ErrorCode_UNEXPECTED_ERROR,
-				Reason:    err.Error(),
-			}
-			return status, err
-		}
-	}
 	return &commonpb.Status{
 		ErrorCode: commonpb.ErrorCode_SUCCESS,
 	}, nil
 }
 
+func (node *QueryNode) ReleasePartitions(in *queryPb.ReleasePartitionRequest) (*commonpb.Status, error) {
+	status := &commonpb.Status{
+		ErrorCode: commonpb.ErrorCode_SUCCESS,
+	}
+	for _, id := range in.PartitionIDs {
+		err := node.loadService.segLoader.replica.removePartition(id)
+		if err != nil {
+			// not return, try to release all partitions
+			status.ErrorCode = commonpb.ErrorCode_UNEXPECTED_ERROR
+			status.Reason = err.Error()
+		}
+	}
+	return status, nil
+}
+
+func (node *QueryNode) ReleaseSegments(in *queryPb.ReleaseSegmentRequest) (*commonpb.Status, error) {
+	status := &commonpb.Status{
+		ErrorCode: commonpb.ErrorCode_SUCCESS,
+	}
+	for _, id := range in.SegmentIDs {
+		err2 := node.loadService.segLoader.replica.removeSegment(id)
+		if err2 != nil {
+			// not return, try to release all segments
+			status.ErrorCode = commonpb.ErrorCode_UNEXPECTED_ERROR
+			status.Reason = err2.Error()
+		}
+	}
+	return status, nil
+}
+
 func (node *QueryNode) GetSegmentInfo(in *queryPb.SegmentInfoRequest) (*queryPb.SegmentInfoResponse, error) {
 	infos := make([]*queryPb.SegmentInfo, 0)
 	for _, id := range in.SegmentIDs {
diff --git a/internal/querynode/segment_loader.go b/internal/querynode/segment_loader.go
index 545e5a8a22..cbf7739d31 100644
--- a/internal/querynode/segment_loader.go
+++ b/internal/querynode/segment_loader.go
@@ -28,11 +28,6 @@ type segmentLoader struct {
 	indexLoader *indexLoader
 }
 
-func (loader *segmentLoader) releaseSegment(segmentID UniqueID) error {
-	err := loader.replica.removeSegment(segmentID)
-	return err
-}
-
 func (loader *segmentLoader) seekSegment(position *internalpb2.MsgPosition) error {
 	// TODO: open seek
 	//for _, position := range positions {
diff --git a/internal/queryservice/querynode.go b/internal/queryservice/querynode.go
index fe44bab4fc..4447ccc16c 100644
--- a/internal/queryservice/querynode.go
+++ b/internal/queryservice/querynode.go
@@ -36,6 +36,14 @@ func (qn *queryNodeInfo) AddQueryChannel(in *querypb.AddQueryChannelsRequest) (*
 	return qn.client.AddQueryChannel(in)
 }
 
+func (qn *queryNodeInfo) ReleaseCollection(in *querypb.ReleaseCollectionRequest) (*commonpb.Status, error) {
+	return qn.client.ReleaseCollection(in)
+}
+
+func (qn *queryNodeInfo) ReleasePartitions(in *querypb.ReleasePartitionRequest) (*commonpb.Status, error) {
+	return qn.client.ReleasePartitions(in)
+}
+
 func newQueryNodeInfo(client QueryNodeInterface) *queryNodeInfo {
 	segments := make([]UniqueID, 0)
 	dmChannelNames := make([]string, 0)
diff --git a/internal/queryservice/queryservice.go b/internal/queryservice/queryservice.go
index f82a0d6f0a..b1007960b6 100644
--- a/internal/queryservice/queryservice.go
+++ b/internal/queryservice/queryservice.go
@@ -40,6 +40,8 @@ type QueryNodeInterface interface {
 	RemoveQueryChannel(in *querypb.RemoveQueryChannelsRequest) (*commonpb.Status, error)
 	WatchDmChannels(in *querypb.WatchDmChannelsRequest) (*commonpb.Status, error)
 	LoadSegments(in *querypb.LoadSegmentRequest) (*commonpb.Status, error)
+	ReleaseCollection(req *querypb.ReleaseCollectionRequest) (*commonpb.Status, error)
+	ReleasePartitions(req *querypb.ReleasePartitionRequest) (*commonpb.Status, error)
 	ReleaseSegments(in *querypb.ReleaseSegmentRequest) (*commonpb.Status, error)
 	GetSegmentInfo(req *querypb.SegmentInfoRequest) (*querypb.SegmentInfoResponse, error)
 }
@@ -278,7 +280,7 @@ func (qs *QueryService) ReleaseCollection(req *querypb.ReleaseCollectionRequest)
 	dbID := req.DbID
 	collectionID := req.CollectionID
 	fmt.Println("release collection start, collectionID = ", collectionID)
-	partitions, err := qs.replica.getPartitions(dbID, collectionID)
+	_, err := qs.replica.getCollectionByID(dbID, collectionID)
 	if err != nil {
 		return &commonpb.Status{
 			ErrorCode: commonpb.ErrorCode_UNEXPECTED_ERROR,
@@ -286,20 +288,13 @@ func (qs *QueryService) ReleaseCollection(req *querypb.ReleaseCollectionRequest)
 		}, err
 	}
 
-	partitionIDs := make([]UniqueID, 0)
-	for _, partition := range partitions {
-		partitionIDs = append(partitionIDs, partition.id)
+	for _, node := range qs.queryNodes {
+		status, err := node.ReleaseCollection(req)
+		if err != nil {
+			return status, err
+		}
 	}
 
-	releasePartitionRequest := &querypb.ReleasePartitionRequest{
-		Base:         req.Base,
-		DbID:         dbID,
-		CollectionID: collectionID,
-		PartitionIDs: partitionIDs,
-	}
-
-	status, err := qs.ReleasePartitions(releasePartitionRequest)
-
 	err = qs.replica.releaseCollection(dbID, collectionID)
 	if err != nil {
 		return &commonpb.Status{
@@ -310,7 +305,9 @@ func (qs *QueryService) ReleaseCollection(req *querypb.ReleaseCollectionRequest)
 
 	fmt.Println("release collection end")
 	//TODO:: queryNode cancel subscribe dmChannels
-	return status, err
+	return &commonpb.Status{
+		ErrorCode: commonpb.ErrorCode_SUCCESS,
+	}, nil
 }
 
 func (qs *QueryService) ShowPartitions(req *querypb.ShowPartitionRequest) (*querypb.ShowPartitionResponse, error) {
@@ -475,48 +472,34 @@ func (qs *QueryService) ReleasePartitions(req *querypb.ReleasePartitionRequest)
 	dbID := req.DbID
 	collectionID := req.CollectionID
 	partitionIDs := req.PartitionIDs
-	segmentIDs := make([]UniqueID, 0)
 	fmt.Println("start release partitions start, partitionIDs = ", partitionIDs)
+	toReleasedPartitionID := make([]UniqueID, 0)
 	for _, partitionID := range partitionIDs {
-		showSegmentRequest := &milvuspb.ShowSegmentRequest{
-			Base: &commonpb.MsgBase{
-				MsgType: commonpb.MsgType_kShowSegment,
-			},
-			CollectionID: collectionID,
-			PartitionID:  partitionID,
-		}
-		showSegmentResponse, err := qs.masterServiceClient.ShowSegments(showSegmentRequest)
-		if err != nil {
-			return &commonpb.Status{
-				ErrorCode: commonpb.ErrorCode_UNEXPECTED_ERROR,
-				Reason:    err.Error(),
-			}, err
+		_, err := qs.replica.getPartitionByID(dbID, collectionID, partitionID)
+		if err == nil {
+			toReleasedPartitionID = append(toReleasedPartitionID, partitionID)
 		}
+	}
 
-		segmentIDs = append(segmentIDs, showSegmentResponse.SegmentIDs...)
-		err = qs.replica.releasePartition(dbID, collectionID, partitionID)
-		if err != nil {
-			return &commonpb.Status{
-				ErrorCode: commonpb.ErrorCode_UNEXPECTED_ERROR,
-				Reason:    err.Error(),
-			}, err
-		}
-	}
-	releaseSegmentRequest := &querypb.ReleaseSegmentRequest{
-		Base:         req.Base,
-		DbID:         dbID,
-		CollectionID: collectionID,
-		PartitionIDs: partitionIDs,
-		SegmentIDs:   segmentIDs,
-	}
+	req.PartitionIDs = toReleasedPartitionID
 
 	for _, node := range qs.queryNodes {
-		status, err := node.client.ReleaseSegments(releaseSegmentRequest)
+		status, err := node.client.ReleasePartitions(req)
 		if err != nil {
 			return status, err
 		}
 	}
 
+	for _, partitionID := range toReleasedPartitionID {
+		err := qs.replica.releasePartition(dbID, collectionID, partitionID)
+		if err != nil {
+			return &commonpb.Status{
+				ErrorCode: commonpb.ErrorCode_UNEXPECTED_ERROR,
+				Reason:    err.Error(),
+			}, err
+		}
+	}
+
 	fmt.Println("start release partitions end")
 	//TODO:: queryNode cancel subscribe dmChannels
 	return &commonpb.Status{