diff --git a/server/coordinator/eventdispatch/dispatch.go b/server/coordinator/eventdispatch/dispatch.go
index 43f26fc5..9d35e07c 100644
--- a/server/coordinator/eventdispatch/dispatch.go
+++ b/server/coordinator/eventdispatch/dispatch.go
@@ -18,8 +18,8 @@ package eventdispatch
 
 import (
 	"context"
-	"github.com/CeresDB/ceresdbproto/golang/pkg/metaeventpb"
 
+	"github.com/CeresDB/ceresdbproto/golang/pkg/metaeventpb"
 	"github.com/CeresDB/ceresmeta/server/cluster/metadata"
 )
 
diff --git a/server/coordinator/factory.go b/server/coordinator/factory.go
index 55dca617..2fe3bad4 100644
--- a/server/coordinator/factory.go
+++ b/server/coordinator/factory.go
@@ -18,7 +18,6 @@ package coordinator
 
 import (
 	"context"
-	"github.com/CeresDB/ceresmeta/server/coordinator/procedure/operation/transfertable"
 
 	"github.com/CeresDB/ceresdbproto/golang/pkg/metaservicepb"
 	"github.com/CeresDB/ceresmeta/server/cluster/metadata"
@@ -30,6 +29,7 @@ import (
 	"github.com/CeresDB/ceresmeta/server/coordinator/procedure/ddl/droptable"
 	"github.com/CeresDB/ceresmeta/server/coordinator/procedure/operation/split"
 	"github.com/CeresDB/ceresmeta/server/coordinator/procedure/operation/transferleader"
+	"github.com/CeresDB/ceresmeta/server/coordinator/procedure/operation/transfertable"
 	"github.com/CeresDB/ceresmeta/server/id"
 	"github.com/CeresDB/ceresmeta/server/storage"
 	"github.com/pkg/errors"
diff --git a/server/coordinator/procedure/operation/transfertable/transfer_table.go b/server/coordinator/procedure/operation/transfertable/transfer_table.go
index c98c01ee..dd73cc88 100644
--- a/server/coordinator/procedure/operation/transfertable/transfer_table.go
+++ b/server/coordinator/procedure/operation/transfertable/transfer_table.go
@@ -1,3 +1,19 @@
+/*
+ * Copyright 2022 The CeresDB Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package transfertable
 
 import (
@@ -48,8 +64,8 @@ type Procedure struct {
 
 	tableInfo               metadata.TableInfo
 	hasSrcShardNode         bool
-	srcShardNodeWithVersion metadata.ShardNodeWithVersion
-	relatedVersionInfo      procedure.RelatedVersionInfo
+	srcShardNodeWithVersion *metadata.ShardNodeWithVersion
+	relatedVersionInfo      *procedure.RelatedVersionInfo
 
 	// Protect the state.
 	// FIXME: the procedure should be executed sequentially, so any need to use a lock to protect it?
@@ -90,10 +106,10 @@ func NewProcedure(params ProcedureParams) (procedure.Procedure, error) {
 
 	shardWithVersion := map[storage.ShardID]uint64{}
 	hasSrcShardNode := false
-	srcShardNodeWithVersion := metadata.ShardNodeWithVersion{}
+	var srcShardNodeWithVersion *metadata.ShardNodeWithVersion
 	if len(entry.NodeShards) != 0 {
 		hasSrcShardNode = true
-		srcShardNodeWithVersion = entry.NodeShards[0]
+		srcShardNodeWithVersion = &entry.NodeShards[0]
 		shardWithVersion[srcShardNodeWithVersion.ShardID()] = srcShardNodeWithVersion.ShardInfo.Version
 	}
 
@@ -102,7 +118,7 @@ func NewProcedure(params ProcedureParams) (procedure.Procedure, error) {
 		return nil, metadata.ErrTransferTable.WithCausef("table not found")
 	}
 
-	relatedVersionInfo := procedure.RelatedVersionInfo{
+	relatedVersionInfo := &procedure.RelatedVersionInfo{
 		ClusterID:        clusterMetadata.GetClusterID(),
 		ShardWithVersion: shardWithVersion,
 		ClusterVersion:   clusterMetadata.GetClusterViewVersion(),
@@ -200,7 +216,7 @@ func (p *Procedure) Start(ctx context.Context) error {
 }
 
 func (p *Procedure) RelatedVersionInfo() procedure.RelatedVersionInfo {
-	return p.relatedVersionInfo
+	return *p.relatedVersionInfo
 }
 
 func (p *Procedure) persist(_ctx context.Context) error {
diff --git a/server/coordinator/procedure/test/common.go b/server/coordinator/procedure/test/common.go
index 8f271f59..bf233691 100644
--- a/server/coordinator/procedure/test/common.go
+++ b/server/coordinator/procedure/test/common.go
@@ -69,12 +69,12 @@ func (m MockDispatch) DropTableOnShard(_ context.Context, _ string, _ eventdispa
 	return 0, nil
 }
 
-func (m MockDispatch) OpenTableOnShard(_ context.Context, _ string, _ eventdispatch.OpenTableOnShardRequest) error {
-	return nil
+func (m MockDispatch) OpenTableOnShard(_ context.Context, _ string, _ eventdispatch.OpenTableOnShardRequest) (eventdispatch.OpenTableOnShardResponse, error) {
+	return eventdispatch.OpenTableOnShardResponse{Version: 0}, nil
 }
 
-func (m MockDispatch) CloseTableOnShard(_ context.Context, _ string, _ eventdispatch.CloseTableOnShardRequest) error {
-	return nil
+func (m MockDispatch) CloseTableOnShard(_ context.Context, _ string, _ eventdispatch.CloseTableOnShardRequest) (eventdispatch.CloseTableOnShardResponse, error) {
+	return eventdispatch.CloseTableOnShardResponse{Version: 0}, nil
 }
 
 type MockStorage struct{}
diff --git a/server/service/http/api.go b/server/service/http/api.go
index 58df0b76..e818c097 100644
--- a/server/service/http/api.go
+++ b/server/service/http/api.go
@@ -220,7 +220,7 @@ func (a *API) transferTable(req *http.Request) apiFuncResult {
 	}
 
 	select {
-	case _ = <-resultCh:
+	case <-resultCh:
 		log.Info("transfer leader succeed", zap.String("request", fmt.Sprintf("%+v", transferTableRequest)), zap.Int64("costTime", time.Since(start).Milliseconds()))
 		return okResult(statusSuccess)
 	case err = <-errorCh: