diff --git a/weed/server/raft_hashicorp.go b/weed/server/raft_hashicorp.go
index cc6578bf5..9971eaa48 100644
--- a/weed/server/raft_hashicorp.go
+++ b/weed/server/raft_hashicorp.go
@@ -121,7 +121,10 @@ func NewHashicorpRaftServer(option *RaftServerOption) (*RaftServer, error) {
 	if option.RaftBootstrap {
 		os.RemoveAll(path.Join(s.dataDir, ldbFile))
 		os.RemoveAll(path.Join(s.dataDir, sdbFile))
-		os.RemoveAll(path.Join(s.dataDir, "snapshot"))
+		os.RemoveAll(path.Join(s.dataDir, "snapshots"))
+	}
+	if err := os.MkdirAll(path.Join(s.dataDir, "snapshots"), os.ModePerm); err != nil {
+		return nil, err
 	}
 	baseDir := s.dataDir
 
diff --git a/weed/server/raft_server.go b/weed/server/raft_server.go
index 8c372f0cc..ad0a1c8ce 100644
--- a/weed/server/raft_server.go
+++ b/weed/server/raft_server.go
@@ -125,7 +125,7 @@ func NewRaftServer(option *RaftServerOption) (*RaftServer, error) {
 		os.RemoveAll(path.Join(s.dataDir, "conf"))
 		os.RemoveAll(path.Join(s.dataDir, "snapshot"))
 	}
-	if err := os.MkdirAll(path.Join(s.dataDir, "snapshot"), 0700); err != nil {
+	if err := os.MkdirAll(path.Join(s.dataDir, "snapshot"), os.ModePerm); err != nil {
 		return nil, err
 	}
 
diff --git a/weed/topology/topology_vacuum.go b/weed/topology/topology_vacuum.go
index 147220f4a..e53aa2853 100644
--- a/weed/topology/topology_vacuum.go
+++ b/weed/topology/topology_vacuum.go
@@ -22,7 +22,7 @@ func (t *Topology) batchVacuumVolumeCheck(grpcDialOption grpc.DialOption, vid ne
 	errCount := int32(0)
 	for index, dn := range locationlist.list {
 		go func(index int, url pb.ServerAddress, vid needle.VolumeId) {
-			err := operation.WithVolumeServerClient(true, url, grpcDialOption, func(volumeServerClient volume_server_pb.VolumeServerClient) error {
+			err := operation.WithVolumeServerClient(false, url, grpcDialOption, func(volumeServerClient volume_server_pb.VolumeServerClient) error {
 				resp, err := volumeServerClient.VacuumVolumeCheck(context.Background(), &volume_server_pb.VacuumVolumeCheckRequest{
 					VolumeId: uint32(vid),
 				})
@@ -123,7 +123,7 @@ func (t *Topology) batchVacuumVolumeCommit(grpcDialOption grpc.DialOption, vl *V
 	isReadOnly := false
 	for _, dn := range locationlist.list {
 		glog.V(0).Infoln("Start Committing vacuum", vid, "on", dn.Url())
-		err := operation.WithVolumeServerClient(true, dn.ServerAddress(), grpcDialOption, func(volumeServerClient volume_server_pb.VolumeServerClient) error {
+		err := operation.WithVolumeServerClient(false, dn.ServerAddress(), grpcDialOption, func(volumeServerClient volume_server_pb.VolumeServerClient) error {
 			resp, err := volumeServerClient.VacuumVolumeCommit(context.Background(), &volume_server_pb.VacuumVolumeCommitRequest{
 				VolumeId: uint32(vid),
 			})
@@ -150,7 +150,7 @@ func (t *Topology) batchVacuumVolumeCommit(grpcDialOption grpc.DialOption, vl *V
 func (t *Topology) batchVacuumVolumeCleanup(grpcDialOption grpc.DialOption, vl *VolumeLayout, vid needle.VolumeId, locationlist *VolumeLocationList) {
 	for _, dn := range locationlist.list {
 		glog.V(0).Infoln("Start cleaning up", vid, "on", dn.Url())
-		err := operation.WithVolumeServerClient(true, dn.ServerAddress(), grpcDialOption, func(volumeServerClient volume_server_pb.VolumeServerClient) error {
+		err := operation.WithVolumeServerClient(false, dn.ServerAddress(), grpcDialOption, func(volumeServerClient volume_server_pb.VolumeServerClient) error {
 			_, err := volumeServerClient.VacuumVolumeCleanup(context.Background(), &volume_server_pb.VacuumVolumeCleanupRequest{
 				VolumeId: uint32(vid),
 			})