diff --git a/weed/pb/master.proto b/weed/pb/master.proto
index 26100fe80..87fdb53af 100644
--- a/weed/pb/master.proto
+++ b/weed/pb/master.proto
@@ -25,6 +25,8 @@ service Seaweed {
     }
     rpc LookupEcVolume (LookupEcVolumeRequest) returns (LookupEcVolumeResponse) {
     }
+    rpc VacuumVolume (VacuumVolumeRequest) returns (VacuumVolumeResponse) {
+    }
     rpc GetMasterConfiguration (GetMasterConfigurationRequest) returns (GetMasterConfigurationResponse) {
     }
     rpc ListMasterClients (ListMasterClientsRequest) returns (ListMasterClientsResponse) {
@@ -264,6 +266,12 @@ message LookupEcVolumeResponse {
     repeated EcShardIdLocation shard_id_locations = 2;
 }
 
+message VacuumVolumeRequest {
+    float garbage_threshold = 1;
+}
+message VacuumVolumeResponse {
+}
+
 message GetMasterConfigurationRequest {
 }
 message GetMasterConfigurationResponse {
diff --git a/weed/pb/master_pb/master.pb.go b/weed/pb/master_pb/master.pb.go
index d1b1d3cb0..d206564f9 100644
--- a/weed/pb/master_pb/master.pb.go
+++ b/weed/pb/master_pb/master.pb.go
@@ -2189,6 +2189,91 @@ func (x *LookupEcVolumeResponse) GetShardIdLocations() []*LookupEcVolumeResponse
 	return nil
 }
 
+type VacuumVolumeRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	GarbageThreshold float32 `protobuf:"fixed32,1,opt,name=garbage_threshold,json=garbageThreshold,proto3" json:"garbage_threshold,omitempty"`
+}
+
+func (x *VacuumVolumeRequest) Reset() {
+	*x = VacuumVolumeRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_master_proto_msgTypes[30]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *VacuumVolumeRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*VacuumVolumeRequest) ProtoMessage() {}
+
+func (x *VacuumVolumeRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_master_proto_msgTypes[30]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use VacuumVolumeRequest.ProtoReflect.Descriptor instead.
+func (*VacuumVolumeRequest) Descriptor() ([]byte, []int) {
+	return file_master_proto_rawDescGZIP(), []int{30}
+}
+
+func (x *VacuumVolumeRequest) GetGarbageThreshold() float32 {
+	if x != nil {
+		return x.GarbageThreshold
+	}
+	return 0
+}
+
+type VacuumVolumeResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+}
+
+func (x *VacuumVolumeResponse) Reset() {
+	*x = VacuumVolumeResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_master_proto_msgTypes[31]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *VacuumVolumeResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*VacuumVolumeResponse) ProtoMessage() {}
+
+func (x *VacuumVolumeResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_master_proto_msgTypes[31]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use VacuumVolumeResponse.ProtoReflect.Descriptor instead.
+func (*VacuumVolumeResponse) Descriptor() ([]byte, []int) {
+	return file_master_proto_rawDescGZIP(), []int{31}
+}
+
 type GetMasterConfigurationRequest struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -2198,7 +2283,7 @@ type GetMasterConfigurationRequest struct {
 func (x *GetMasterConfigurationRequest) Reset() {
 	*x = GetMasterConfigurationRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_master_proto_msgTypes[30]
+		mi := &file_master_proto_msgTypes[32]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -2211,7 +2296,7 @@ func (x *GetMasterConfigurationRequest) String() string {
 func (*GetMasterConfigurationRequest) ProtoMessage() {}
 
 func (x *GetMasterConfigurationRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_master_proto_msgTypes[30]
+	mi := &file_master_proto_msgTypes[32]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -2224,7 +2309,7 @@ func (x *GetMasterConfigurationRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use GetMasterConfigurationRequest.ProtoReflect.Descriptor instead.
 func (*GetMasterConfigurationRequest) Descriptor() ([]byte, []int) {
-	return file_master_proto_rawDescGZIP(), []int{30}
+	return file_master_proto_rawDescGZIP(), []int{32}
 }
 
 type GetMasterConfigurationResponse struct {
@@ -2242,7 +2327,7 @@ type GetMasterConfigurationResponse struct {
 func (x *GetMasterConfigurationResponse) Reset() {
 	*x = GetMasterConfigurationResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_master_proto_msgTypes[31]
+		mi := &file_master_proto_msgTypes[33]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -2255,7 +2340,7 @@ func (x *GetMasterConfigurationResponse) String() string {
 func (*GetMasterConfigurationResponse) ProtoMessage() {}
 
 func (x *GetMasterConfigurationResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_master_proto_msgTypes[31]
+	mi := &file_master_proto_msgTypes[33]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -2268,7 +2353,7 @@ func (x *GetMasterConfigurationResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use GetMasterConfigurationResponse.ProtoReflect.Descriptor instead.
 func (*GetMasterConfigurationResponse) Descriptor() ([]byte, []int) {
-	return file_master_proto_rawDescGZIP(), []int{31}
+	return file_master_proto_rawDescGZIP(), []int{33}
 }
 
 func (x *GetMasterConfigurationResponse) GetMetricsAddress() string {
@@ -2317,7 +2402,7 @@ type ListMasterClientsRequest struct {
 func (x *ListMasterClientsRequest) Reset() {
 	*x = ListMasterClientsRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_master_proto_msgTypes[32]
+		mi := &file_master_proto_msgTypes[34]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -2330,7 +2415,7 @@ func (x *ListMasterClientsRequest) String() string {
 func (*ListMasterClientsRequest) ProtoMessage() {}
 
 func (x *ListMasterClientsRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_master_proto_msgTypes[32]
+	mi := &file_master_proto_msgTypes[34]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -2343,7 +2428,7 @@ func (x *ListMasterClientsRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ListMasterClientsRequest.ProtoReflect.Descriptor instead.
 func (*ListMasterClientsRequest) Descriptor() ([]byte, []int) {
-	return file_master_proto_rawDescGZIP(), []int{32}
+	return file_master_proto_rawDescGZIP(), []int{34}
 }
 
 func (x *ListMasterClientsRequest) GetClientType() string {
@@ -2364,7 +2449,7 @@ type ListMasterClientsResponse struct {
 func (x *ListMasterClientsResponse) Reset() {
 	*x = ListMasterClientsResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_master_proto_msgTypes[33]
+		mi := &file_master_proto_msgTypes[35]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -2377,7 +2462,7 @@ func (x *ListMasterClientsResponse) String() string {
 func (*ListMasterClientsResponse) ProtoMessage() {}
 
 func (x *ListMasterClientsResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_master_proto_msgTypes[33]
+	mi := &file_master_proto_msgTypes[35]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -2390,7 +2475,7 @@ func (x *ListMasterClientsResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ListMasterClientsResponse.ProtoReflect.Descriptor instead.
 func (*ListMasterClientsResponse) Descriptor() ([]byte, []int) {
-	return file_master_proto_rawDescGZIP(), []int{33}
+	return file_master_proto_rawDescGZIP(), []int{35}
 }
 
 func (x *ListMasterClientsResponse) GetGrpcAddresses() []string {
@@ -2413,7 +2498,7 @@ type LeaseAdminTokenRequest struct {
 func (x *LeaseAdminTokenRequest) Reset() {
 	*x = LeaseAdminTokenRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_master_proto_msgTypes[34]
+		mi := &file_master_proto_msgTypes[36]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -2426,7 +2511,7 @@ func (x *LeaseAdminTokenRequest) String() string {
 func (*LeaseAdminTokenRequest) ProtoMessage() {}
 
 func (x *LeaseAdminTokenRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_master_proto_msgTypes[34]
+	mi := &file_master_proto_msgTypes[36]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -2439,7 +2524,7 @@ func (x *LeaseAdminTokenRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use LeaseAdminTokenRequest.ProtoReflect.Descriptor instead.
 func (*LeaseAdminTokenRequest) Descriptor() ([]byte, []int) {
-	return file_master_proto_rawDescGZIP(), []int{34}
+	return file_master_proto_rawDescGZIP(), []int{36}
 }
 
 func (x *LeaseAdminTokenRequest) GetPreviousToken() int64 {
@@ -2475,7 +2560,7 @@ type LeaseAdminTokenResponse struct {
 func (x *LeaseAdminTokenResponse) Reset() {
 	*x = LeaseAdminTokenResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_master_proto_msgTypes[35]
+		mi := &file_master_proto_msgTypes[37]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -2488,7 +2573,7 @@ func (x *LeaseAdminTokenResponse) String() string {
 func (*LeaseAdminTokenResponse) ProtoMessage() {}
 
 func (x *LeaseAdminTokenResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_master_proto_msgTypes[35]
+	mi := &file_master_proto_msgTypes[37]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -2501,7 +2586,7 @@ func (x *LeaseAdminTokenResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use LeaseAdminTokenResponse.ProtoReflect.Descriptor instead.
 func (*LeaseAdminTokenResponse) Descriptor() ([]byte, []int) {
-	return file_master_proto_rawDescGZIP(), []int{35}
+	return file_master_proto_rawDescGZIP(), []int{37}
 }
 
 func (x *LeaseAdminTokenResponse) GetToken() int64 {
@@ -2531,7 +2616,7 @@ type ReleaseAdminTokenRequest struct {
 func (x *ReleaseAdminTokenRequest) Reset() {
 	*x = ReleaseAdminTokenRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_master_proto_msgTypes[36]
+		mi := &file_master_proto_msgTypes[38]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -2544,7 +2629,7 @@ func (x *ReleaseAdminTokenRequest) String() string {
 func (*ReleaseAdminTokenRequest) ProtoMessage() {}
 
 func (x *ReleaseAdminTokenRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_master_proto_msgTypes[36]
+	mi := &file_master_proto_msgTypes[38]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -2557,7 +2642,7 @@ func (x *ReleaseAdminTokenRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ReleaseAdminTokenRequest.ProtoReflect.Descriptor instead.
 func (*ReleaseAdminTokenRequest) Descriptor() ([]byte, []int) {
-	return file_master_proto_rawDescGZIP(), []int{36}
+	return file_master_proto_rawDescGZIP(), []int{38}
 }
 
 func (x *ReleaseAdminTokenRequest) GetPreviousToken() int64 {
@@ -2590,7 +2675,7 @@ type ReleaseAdminTokenResponse struct {
 func (x *ReleaseAdminTokenResponse) Reset() {
 	*x = ReleaseAdminTokenResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_master_proto_msgTypes[37]
+		mi := &file_master_proto_msgTypes[39]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -2603,7 +2688,7 @@ func (x *ReleaseAdminTokenResponse) String() string {
 func (*ReleaseAdminTokenResponse) ProtoMessage() {}
 
 func (x *ReleaseAdminTokenResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_master_proto_msgTypes[37]
+	mi := &file_master_proto_msgTypes[39]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -2616,7 +2701,7 @@ func (x *ReleaseAdminTokenResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ReleaseAdminTokenResponse.ProtoReflect.Descriptor instead.
 func (*ReleaseAdminTokenResponse) Descriptor() ([]byte, []int) {
-	return file_master_proto_rawDescGZIP(), []int{37}
+	return file_master_proto_rawDescGZIP(), []int{39}
 }
 
 type SuperBlockExtra_ErasureCoding struct {
@@ -2632,7 +2717,7 @@ type SuperBlockExtra_ErasureCoding struct {
 func (x *SuperBlockExtra_ErasureCoding) Reset() {
 	*x = SuperBlockExtra_ErasureCoding{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_master_proto_msgTypes[39]
+		mi := &file_master_proto_msgTypes[41]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -2645,7 +2730,7 @@ func (x *SuperBlockExtra_ErasureCoding) String() string {
 func (*SuperBlockExtra_ErasureCoding) ProtoMessage() {}
 
 func (x *SuperBlockExtra_ErasureCoding) ProtoReflect() protoreflect.Message {
-	mi := &file_master_proto_msgTypes[39]
+	mi := &file_master_proto_msgTypes[41]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -2695,7 +2780,7 @@ type LookupVolumeResponse_VolumeIdLocation struct {
 func (x *LookupVolumeResponse_VolumeIdLocation) Reset() {
 	*x = LookupVolumeResponse_VolumeIdLocation{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_master_proto_msgTypes[40]
+		mi := &file_master_proto_msgTypes[42]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -2708,7 +2793,7 @@ func (x *LookupVolumeResponse_VolumeIdLocation) String() string {
 func (*LookupVolumeResponse_VolumeIdLocation) ProtoMessage() {}
 
 func (x *LookupVolumeResponse_VolumeIdLocation) ProtoReflect() protoreflect.Message {
-	mi := &file_master_proto_msgTypes[40]
+	mi := &file_master_proto_msgTypes[42]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -2757,7 +2842,7 @@ type LookupEcVolumeResponse_EcShardIdLocation struct {
 func (x *LookupEcVolumeResponse_EcShardIdLocation) Reset() {
 	*x = LookupEcVolumeResponse_EcShardIdLocation{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_master_proto_msgTypes[41]
+		mi := &file_master_proto_msgTypes[43]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -2770,7 +2855,7 @@ func (x *LookupEcVolumeResponse_EcShardIdLocation) String() string {
 func (*LookupEcVolumeResponse_EcShardIdLocation) ProtoMessage() {}
 
 func (x *LookupEcVolumeResponse_EcShardIdLocation) ProtoReflect() protoreflect.Message {
-	mi := &file_master_proto_msgTypes[41]
+	mi := &file_master_proto_msgTypes[43]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -3165,134 +3250,145 @@ var file_master_proto_rawDesc = []byte{
 	0x64, 0x12, 0x31, 0x0a, 0x09, 0x6c, 0x6f, 0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x73, 0x18, 0x02,
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-	0x73, 0x6c, 0x75, 0x73, 0x66, 0x2f, 0x73, 0x65, 0x61, 0x77, 0x65, 0x65, 0x64, 0x66, 0x73, 0x2f,
-	0x77, 0x65, 0x65, 0x64, 0x2f, 0x70, 0x62, 0x2f, 0x6d, 0x61, 0x73, 0x74, 0x65, 0x72, 0x5f, 0x70,
-	0x62, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+	0x75, 0x65, 0x73, 0x74, 0x1a, 0x22, 0x2e, 0x6d, 0x61, 0x73, 0x74, 0x65, 0x72, 0x5f, 0x70, 0x62,
+	0x2e, 0x4c, 0x65, 0x61, 0x73, 0x65, 0x41, 0x64, 0x6d, 0x69, 0x6e, 0x54, 0x6f, 0x6b, 0x65, 0x6e,
+	0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x12, 0x60, 0x0a, 0x11, 0x52, 0x65,
+	0x6c, 0x65, 0x61, 0x73, 0x65, 0x41, 0x64, 0x6d, 0x69, 0x6e, 0x54, 0x6f, 0x6b, 0x65, 0x6e, 0x12,
+	0x23, 0x2e, 0x6d, 0x61, 0x73, 0x74, 0x65, 0x72, 0x5f, 0x70, 0x62, 0x2e, 0x52, 0x65, 0x6c, 0x65,
+	0x61, 0x73, 0x65, 0x41, 0x64, 0x6d, 0x69, 0x6e, 0x54, 0x6f, 0x6b, 0x65, 0x6e, 0x52, 0x65, 0x71,
+	0x75, 0x65, 0x73, 0x74, 0x1a, 0x24, 0x2e, 0x6d, 0x61, 0x73, 0x74, 0x65, 0x72, 0x5f, 0x70, 0x62,
+	0x2e, 0x52, 0x65, 0x6c, 0x65, 0x61, 0x73, 0x65, 0x41, 0x64, 0x6d, 0x69, 0x6e, 0x54, 0x6f, 0x6b,
+	0x65, 0x6e, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x42, 0x32, 0x5a, 0x30,
+	0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x63, 0x68, 0x72, 0x69, 0x73,
+	0x6c, 0x75, 0x73, 0x66, 0x2f, 0x73, 0x65, 0x61, 0x77, 0x65, 0x65, 0x64, 0x66, 0x73, 0x2f, 0x77,
+	0x65, 0x65, 0x64, 0x2f, 0x70, 0x62, 0x2f, 0x6d, 0x61, 0x73, 0x74, 0x65, 0x72, 0x5f, 0x70, 0x62,
+	0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -3307,7 +3403,7 @@ func file_master_proto_rawDescGZIP() []byte {
 	return file_master_proto_rawDescData
 }
 
-var file_master_proto_msgTypes = make([]protoimpl.MessageInfo, 42)
+var file_master_proto_msgTypes = make([]protoimpl.MessageInfo, 44)
 var file_master_proto_goTypes = []interface{}{
 	(*Heartbeat)(nil),                                // 0: master_pb.Heartbeat
 	(*HeartbeatResponse)(nil),                        // 1: master_pb.HeartbeatResponse
@@ -3339,18 +3435,20 @@ var file_master_proto_goTypes = []interface{}{
 	(*VolumeListResponse)(nil),                       // 27: master_pb.VolumeListResponse
 	(*LookupEcVolumeRequest)(nil),                    // 28: master_pb.LookupEcVolumeRequest
 	(*LookupEcVolumeResponse)(nil),                   // 29: master_pb.LookupEcVolumeResponse
-	(*GetMasterConfigurationRequest)(nil),            // 30: master_pb.GetMasterConfigurationRequest
-	(*GetMasterConfigurationResponse)(nil),           // 31: master_pb.GetMasterConfigurationResponse
-	(*ListMasterClientsRequest)(nil),                 // 32: master_pb.ListMasterClientsRequest
-	(*ListMasterClientsResponse)(nil),                // 33: master_pb.ListMasterClientsResponse
-	(*LeaseAdminTokenRequest)(nil),                   // 34: master_pb.LeaseAdminTokenRequest
-	(*LeaseAdminTokenResponse)(nil),                  // 35: master_pb.LeaseAdminTokenResponse
-	(*ReleaseAdminTokenRequest)(nil),                 // 36: master_pb.ReleaseAdminTokenRequest
-	(*ReleaseAdminTokenResponse)(nil),                // 37: master_pb.ReleaseAdminTokenResponse
-	nil,                                              // 38: master_pb.StorageBackend.PropertiesEntry
-	(*SuperBlockExtra_ErasureCoding)(nil),            // 39: master_pb.SuperBlockExtra.ErasureCoding
-	(*LookupVolumeResponse_VolumeIdLocation)(nil),    // 40: master_pb.LookupVolumeResponse.VolumeIdLocation
-	(*LookupEcVolumeResponse_EcShardIdLocation)(nil), // 41: master_pb.LookupEcVolumeResponse.EcShardIdLocation
+	(*VacuumVolumeRequest)(nil),                      // 30: master_pb.VacuumVolumeRequest
+	(*VacuumVolumeResponse)(nil),                     // 31: master_pb.VacuumVolumeResponse
+	(*GetMasterConfigurationRequest)(nil),            // 32: master_pb.GetMasterConfigurationRequest
+	(*GetMasterConfigurationResponse)(nil),           // 33: master_pb.GetMasterConfigurationResponse
+	(*ListMasterClientsRequest)(nil),                 // 34: master_pb.ListMasterClientsRequest
+	(*ListMasterClientsResponse)(nil),                // 35: master_pb.ListMasterClientsResponse
+	(*LeaseAdminTokenRequest)(nil),                   // 36: master_pb.LeaseAdminTokenRequest
+	(*LeaseAdminTokenResponse)(nil),                  // 37: master_pb.LeaseAdminTokenResponse
+	(*ReleaseAdminTokenRequest)(nil),                 // 38: master_pb.ReleaseAdminTokenRequest
+	(*ReleaseAdminTokenResponse)(nil),                // 39: master_pb.ReleaseAdminTokenResponse
+	nil,                                              // 40: master_pb.StorageBackend.PropertiesEntry
+	(*SuperBlockExtra_ErasureCoding)(nil),            // 41: master_pb.SuperBlockExtra.ErasureCoding
+	(*LookupVolumeResponse_VolumeIdLocation)(nil),    // 42: master_pb.LookupVolumeResponse.VolumeIdLocation
+	(*LookupEcVolumeResponse_EcShardIdLocation)(nil), // 43: master_pb.LookupEcVolumeResponse.EcShardIdLocation
 }
 var file_master_proto_depIdxs = []int32{
 	2,  // 0: master_pb.Heartbeat.volumes:type_name -> master_pb.VolumeInformationMessage
@@ -3360,9 +3458,9 @@ var file_master_proto_depIdxs = []int32{
 	4,  // 4: master_pb.Heartbeat.new_ec_shards:type_name -> master_pb.VolumeEcShardInformationMessage
 	4,  // 5: master_pb.Heartbeat.deleted_ec_shards:type_name -> master_pb.VolumeEcShardInformationMessage
 	5,  // 6: master_pb.HeartbeatResponse.storage_backends:type_name -> master_pb.StorageBackend
-	38, // 7: master_pb.StorageBackend.properties:type_name -> master_pb.StorageBackend.PropertiesEntry
-	39, // 8: master_pb.SuperBlockExtra.erasure_coding:type_name -> master_pb.SuperBlockExtra.ErasureCoding
-	40, // 9: master_pb.LookupVolumeResponse.volume_id_locations:type_name -> master_pb.LookupVolumeResponse.VolumeIdLocation
+	40, // 7: master_pb.StorageBackend.properties:type_name -> master_pb.StorageBackend.PropertiesEntry
+	41, // 8: master_pb.SuperBlockExtra.erasure_coding:type_name -> master_pb.SuperBlockExtra.ErasureCoding
+	42, // 9: master_pb.LookupVolumeResponse.volume_id_locations:type_name -> master_pb.LookupVolumeResponse.VolumeIdLocation
 	17, // 10: master_pb.CollectionListResponse.collections:type_name -> master_pb.Collection
 	2,  // 11: master_pb.DataNodeInfo.volume_infos:type_name -> master_pb.VolumeInformationMessage
 	4,  // 12: master_pb.DataNodeInfo.ec_shard_infos:type_name -> master_pb.VolumeEcShardInformationMessage
@@ -3370,7 +3468,7 @@ var file_master_proto_depIdxs = []int32{
 	23, // 14: master_pb.DataCenterInfo.rack_infos:type_name -> master_pb.RackInfo
 	24, // 15: master_pb.TopologyInfo.data_center_infos:type_name -> master_pb.DataCenterInfo
 	25, // 16: master_pb.VolumeListResponse.topology_info:type_name -> master_pb.TopologyInfo
-	41, // 17: master_pb.LookupEcVolumeResponse.shard_id_locations:type_name -> master_pb.LookupEcVolumeResponse.EcShardIdLocation
+	43, // 17: master_pb.LookupEcVolumeResponse.shard_id_locations:type_name -> master_pb.LookupEcVolumeResponse.EcShardIdLocation
 	5,  // 18: master_pb.GetMasterConfigurationResponse.storage_backends:type_name -> master_pb.StorageBackend
 	12, // 19: master_pb.LookupVolumeResponse.VolumeIdLocation.locations:type_name -> master_pb.Location
 	12, // 20: master_pb.LookupEcVolumeResponse.EcShardIdLocation.locations:type_name -> master_pb.Location
@@ -3383,25 +3481,27 @@ var file_master_proto_depIdxs = []int32{
 	20, // 27: master_pb.Seaweed.CollectionDelete:input_type -> master_pb.CollectionDeleteRequest
 	26, // 28: master_pb.Seaweed.VolumeList:input_type -> master_pb.VolumeListRequest
 	28, // 29: master_pb.Seaweed.LookupEcVolume:input_type -> master_pb.LookupEcVolumeRequest
-	30, // 30: master_pb.Seaweed.GetMasterConfiguration:input_type -> master_pb.GetMasterConfigurationRequest
-	32, // 31: master_pb.Seaweed.ListMasterClients:input_type -> master_pb.ListMasterClientsRequest
-	34, // 32: master_pb.Seaweed.LeaseAdminToken:input_type -> master_pb.LeaseAdminTokenRequest
-	36, // 33: master_pb.Seaweed.ReleaseAdminToken:input_type -> master_pb.ReleaseAdminTokenRequest
-	1,  // 34: master_pb.Seaweed.SendHeartbeat:output_type -> master_pb.HeartbeatResponse
-	9,  // 35: master_pb.Seaweed.KeepConnected:output_type -> master_pb.VolumeLocation
-	11, // 36: master_pb.Seaweed.LookupVolume:output_type -> master_pb.LookupVolumeResponse
-	14, // 37: master_pb.Seaweed.Assign:output_type -> master_pb.AssignResponse
-	16, // 38: master_pb.Seaweed.Statistics:output_type -> master_pb.StatisticsResponse
-	19, // 39: master_pb.Seaweed.CollectionList:output_type -> master_pb.CollectionListResponse
-	21, // 40: master_pb.Seaweed.CollectionDelete:output_type -> master_pb.CollectionDeleteResponse
-	27, // 41: master_pb.Seaweed.VolumeList:output_type -> master_pb.VolumeListResponse
-	29, // 42: master_pb.Seaweed.LookupEcVolume:output_type -> master_pb.LookupEcVolumeResponse
-	31, // 43: master_pb.Seaweed.GetMasterConfiguration:output_type -> master_pb.GetMasterConfigurationResponse
-	33, // 44: master_pb.Seaweed.ListMasterClients:output_type -> master_pb.ListMasterClientsResponse
-	35, // 45: master_pb.Seaweed.LeaseAdminToken:output_type -> master_pb.LeaseAdminTokenResponse
-	37, // 46: master_pb.Seaweed.ReleaseAdminToken:output_type -> master_pb.ReleaseAdminTokenResponse
-	34, // [34:47] is the sub-list for method output_type
-	21, // [21:34] is the sub-list for method input_type
+	30, // 30: master_pb.Seaweed.VacuumVolume:input_type -> master_pb.VacuumVolumeRequest
+	32, // 31: master_pb.Seaweed.GetMasterConfiguration:input_type -> master_pb.GetMasterConfigurationRequest
+	34, // 32: master_pb.Seaweed.ListMasterClients:input_type -> master_pb.ListMasterClientsRequest
+	36, // 33: master_pb.Seaweed.LeaseAdminToken:input_type -> master_pb.LeaseAdminTokenRequest
+	38, // 34: master_pb.Seaweed.ReleaseAdminToken:input_type -> master_pb.ReleaseAdminTokenRequest
+	1,  // 35: master_pb.Seaweed.SendHeartbeat:output_type -> master_pb.HeartbeatResponse
+	9,  // 36: master_pb.Seaweed.KeepConnected:output_type -> master_pb.VolumeLocation
+	11, // 37: master_pb.Seaweed.LookupVolume:output_type -> master_pb.LookupVolumeResponse
+	14, // 38: master_pb.Seaweed.Assign:output_type -> master_pb.AssignResponse
+	16, // 39: master_pb.Seaweed.Statistics:output_type -> master_pb.StatisticsResponse
+	19, // 40: master_pb.Seaweed.CollectionList:output_type -> master_pb.CollectionListResponse
+	21, // 41: master_pb.Seaweed.CollectionDelete:output_type -> master_pb.CollectionDeleteResponse
+	27, // 42: master_pb.Seaweed.VolumeList:output_type -> master_pb.VolumeListResponse
+	29, // 43: master_pb.Seaweed.LookupEcVolume:output_type -> master_pb.LookupEcVolumeResponse
+	31, // 44: master_pb.Seaweed.VacuumVolume:output_type -> master_pb.VacuumVolumeResponse
+	33, // 45: master_pb.Seaweed.GetMasterConfiguration:output_type -> master_pb.GetMasterConfigurationResponse
+	35, // 46: master_pb.Seaweed.ListMasterClients:output_type -> master_pb.ListMasterClientsResponse
+	37, // 47: master_pb.Seaweed.LeaseAdminToken:output_type -> master_pb.LeaseAdminTokenResponse
+	39, // 48: master_pb.Seaweed.ReleaseAdminToken:output_type -> master_pb.ReleaseAdminTokenResponse
+	35, // [35:49] is the sub-list for method output_type
+	21, // [21:35] is the sub-list for method input_type
 	21, // [21:21] is the sub-list for extension type_name
 	21, // [21:21] is the sub-list for extension extendee
 	0,  // [0:21] is the sub-list for field type_name
@@ -3774,7 +3874,7 @@ func file_master_proto_init() {
 			}
 		}
 		file_master_proto_msgTypes[30].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*GetMasterConfigurationRequest); i {
+			switch v := v.(*VacuumVolumeRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -3786,7 +3886,7 @@ func file_master_proto_init() {
 			}
 		}
 		file_master_proto_msgTypes[31].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*GetMasterConfigurationResponse); i {
+			switch v := v.(*VacuumVolumeResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -3798,7 +3898,7 @@ func file_master_proto_init() {
 			}
 		}
 		file_master_proto_msgTypes[32].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*ListMasterClientsRequest); i {
+			switch v := v.(*GetMasterConfigurationRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -3810,7 +3910,7 @@ func file_master_proto_init() {
 			}
 		}
 		file_master_proto_msgTypes[33].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*ListMasterClientsResponse); i {
+			switch v := v.(*GetMasterConfigurationResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -3822,7 +3922,7 @@ func file_master_proto_init() {
 			}
 		}
 		file_master_proto_msgTypes[34].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*LeaseAdminTokenRequest); i {
+			switch v := v.(*ListMasterClientsRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -3834,7 +3934,7 @@ func file_master_proto_init() {
 			}
 		}
 		file_master_proto_msgTypes[35].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*LeaseAdminTokenResponse); i {
+			switch v := v.(*ListMasterClientsResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -3846,7 +3946,7 @@ func file_master_proto_init() {
 			}
 		}
 		file_master_proto_msgTypes[36].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*ReleaseAdminTokenRequest); i {
+			switch v := v.(*LeaseAdminTokenRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -3858,7 +3958,19 @@ func file_master_proto_init() {
 			}
 		}
 		file_master_proto_msgTypes[37].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*ReleaseAdminTokenResponse); i {
+			switch v := v.(*LeaseAdminTokenResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_master_proto_msgTypes[38].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*ReleaseAdminTokenRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -3870,6 +3982,18 @@ func file_master_proto_init() {
 			}
 		}
 		file_master_proto_msgTypes[39].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*ReleaseAdminTokenResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_master_proto_msgTypes[41].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*SuperBlockExtra_ErasureCoding); i {
 			case 0:
 				return &v.state
@@ -3881,7 +4005,7 @@ func file_master_proto_init() {
 				return nil
 			}
 		}
-		file_master_proto_msgTypes[40].Exporter = func(v interface{}, i int) interface{} {
+		file_master_proto_msgTypes[42].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*LookupVolumeResponse_VolumeIdLocation); i {
 			case 0:
 				return &v.state
@@ -3893,7 +4017,7 @@ func file_master_proto_init() {
 				return nil
 			}
 		}
-		file_master_proto_msgTypes[41].Exporter = func(v interface{}, i int) interface{} {
+		file_master_proto_msgTypes[43].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*LookupEcVolumeResponse_EcShardIdLocation); i {
 			case 0:
 				return &v.state
@@ -3912,7 +4036,7 @@ func file_master_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_master_proto_rawDesc,
 			NumEnums:      0,
-			NumMessages:   42,
+			NumMessages:   44,
 			NumExtensions: 0,
 			NumServices:   1,
 		},
@@ -3947,6 +4071,7 @@ type SeaweedClient interface {
 	CollectionDelete(ctx context.Context, in *CollectionDeleteRequest, opts ...grpc.CallOption) (*CollectionDeleteResponse, error)
 	VolumeList(ctx context.Context, in *VolumeListRequest, opts ...grpc.CallOption) (*VolumeListResponse, error)
 	LookupEcVolume(ctx context.Context, in *LookupEcVolumeRequest, opts ...grpc.CallOption) (*LookupEcVolumeResponse, error)
+	VacuumVolume(ctx context.Context, in *VacuumVolumeRequest, opts ...grpc.CallOption) (*VacuumVolumeResponse, error)
 	GetMasterConfiguration(ctx context.Context, in *GetMasterConfigurationRequest, opts ...grpc.CallOption) (*GetMasterConfigurationResponse, error)
 	ListMasterClients(ctx context.Context, in *ListMasterClientsRequest, opts ...grpc.CallOption) (*ListMasterClientsResponse, error)
 	LeaseAdminToken(ctx context.Context, in *LeaseAdminTokenRequest, opts ...grpc.CallOption) (*LeaseAdminTokenResponse, error)
@@ -4086,6 +4211,15 @@ func (c *seaweedClient) LookupEcVolume(ctx context.Context, in *LookupEcVolumeRe
 	return out, nil
 }
 
+func (c *seaweedClient) VacuumVolume(ctx context.Context, in *VacuumVolumeRequest, opts ...grpc.CallOption) (*VacuumVolumeResponse, error) {
+	out := new(VacuumVolumeResponse)
+	err := c.cc.Invoke(ctx, "/master_pb.Seaweed/VacuumVolume", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 func (c *seaweedClient) GetMasterConfiguration(ctx context.Context, in *GetMasterConfigurationRequest, opts ...grpc.CallOption) (*GetMasterConfigurationResponse, error) {
 	out := new(GetMasterConfigurationResponse)
 	err := c.cc.Invoke(ctx, "/master_pb.Seaweed/GetMasterConfiguration", in, out, opts...)
@@ -4133,6 +4267,7 @@ type SeaweedServer interface {
 	CollectionDelete(context.Context, *CollectionDeleteRequest) (*CollectionDeleteResponse, error)
 	VolumeList(context.Context, *VolumeListRequest) (*VolumeListResponse, error)
 	LookupEcVolume(context.Context, *LookupEcVolumeRequest) (*LookupEcVolumeResponse, error)
+	VacuumVolume(context.Context, *VacuumVolumeRequest) (*VacuumVolumeResponse, error)
 	GetMasterConfiguration(context.Context, *GetMasterConfigurationRequest) (*GetMasterConfigurationResponse, error)
 	ListMasterClients(context.Context, *ListMasterClientsRequest) (*ListMasterClientsResponse, error)
 	LeaseAdminToken(context.Context, *LeaseAdminTokenRequest) (*LeaseAdminTokenResponse, error)
@@ -4170,6 +4305,9 @@ func (*UnimplementedSeaweedServer) VolumeList(context.Context, *VolumeListReques
 func (*UnimplementedSeaweedServer) LookupEcVolume(context.Context, *LookupEcVolumeRequest) (*LookupEcVolumeResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method LookupEcVolume not implemented")
 }
+func (*UnimplementedSeaweedServer) VacuumVolume(context.Context, *VacuumVolumeRequest) (*VacuumVolumeResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method VacuumVolume not implemented")
+}
 func (*UnimplementedSeaweedServer) GetMasterConfiguration(context.Context, *GetMasterConfigurationRequest) (*GetMasterConfigurationResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method GetMasterConfiguration not implemented")
 }
@@ -4365,6 +4503,24 @@ func _Seaweed_LookupEcVolume_Handler(srv interface{}, ctx context.Context, dec f
 	return interceptor(ctx, in, info, handler)
 }
 
+func _Seaweed_VacuumVolume_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(VacuumVolumeRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(SeaweedServer).VacuumVolume(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/master_pb.Seaweed/VacuumVolume",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(SeaweedServer).VacuumVolume(ctx, req.(*VacuumVolumeRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
 func _Seaweed_GetMasterConfiguration_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
 	in := new(GetMasterConfigurationRequest)
 	if err := dec(in); err != nil {
@@ -4469,6 +4625,10 @@ var _Seaweed_serviceDesc = grpc.ServiceDesc{
 			MethodName: "LookupEcVolume",
 			Handler:    _Seaweed_LookupEcVolume_Handler,
 		},
+		{
+			MethodName: "VacuumVolume",
+			Handler:    _Seaweed_VacuumVolume_Handler,
+		},
 		{
 			MethodName: "GetMasterConfiguration",
 			Handler:    _Seaweed_GetMasterConfiguration_Handler,
diff --git a/weed/server/master_grpc_server_volume.go b/weed/server/master_grpc_server_volume.go
index 03b718291..20a22d126 100644
--- a/weed/server/master_grpc_server_volume.go
+++ b/weed/server/master_grpc_server_volume.go
@@ -177,3 +177,16 @@ func (ms *MasterServer) LookupEcVolume(ctx context.Context, req *master_pb.Looku
 
 	return resp, nil
 }
+
+func (ms *MasterServer) VacuumVolume(ctx context.Context, req *master_pb.VacuumVolumeRequest) (*master_pb.VacuumVolumeResponse, error) {
+
+	if !ms.Topo.IsLeader() {
+		return nil, raft.NotLeaderError
+	}
+
+	resp := &master_pb.VacuumVolumeResponse{}
+
+	ms.Topo.Vacuum(ms.grpcDialOption, float64(req.GarbageThreshold), ms.preallocateSize)
+
+	return resp, nil
+}
diff --git a/weed/shell/command_volume_vacuum.go b/weed/shell/command_volume_vacuum.go
new file mode 100644
index 000000000..56f85f4fe
--- /dev/null
+++ b/weed/shell/command_volume_vacuum.go
@@ -0,0 +1,53 @@
+package shell
+
+import (
+	"context"
+	"flag"
+	"io"
+
+	"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
+)
+
+func init() {
+	Commands = append(Commands, &commandVacuum{})
+}
+
+type commandVacuum struct {
+}
+
+func (c *commandVacuum) Name() string {
+	return "volume.vacuum"
+}
+
+func (c *commandVacuum) Help() string {
+	return `compact volumes if deleted entries are more than the limit
+
+	volume.vacuum [-garbageThreshold=0.3]
+
+`
+}
+
+func (c *commandVacuum) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
+
+	if err = commandEnv.confirmIsLocked(); err != nil {
+		return
+	}
+
+	volumeVacuumCommand := flag.NewFlagSet(c.Name(), flag.ContinueOnError)
+	garbageThreshold := volumeVacuumCommand.Float64("garbageThreshold", 0.3, "vacuum when garbage is more than this limit")
+	if err = volumeVacuumCommand.Parse(args); err != nil {
+		return nil
+	}
+
+	err = commandEnv.MasterClient.WithClient(func(client master_pb.SeaweedClient) error {
+		_, err = client.VacuumVolume(context.Background(), &master_pb.VacuumVolumeRequest{
+			GarbageThreshold: float32(*garbageThreshold),
+		})
+		return err
+	})
+	if err != nil {
+		return
+	}
+
+	return nil
+}
diff --git a/weed/topology/topology_vacuum.go b/weed/topology/topology_vacuum.go
index 7bf55d131..04c26bc4d 100644
--- a/weed/topology/topology_vacuum.go
+++ b/weed/topology/topology_vacuum.go
@@ -144,12 +144,12 @@ func batchVacuumVolumeCleanup(grpcDialOption grpc.DialOption, vl *VolumeLayout,
 	}
 }
 
-func (t *Topology) Vacuum(grpcDialOption grpc.DialOption, garbageThreshold float64, preallocate int64) int {
+func (t *Topology) Vacuum(grpcDialOption grpc.DialOption, garbageThreshold float64, preallocate int64) {
 
 	// if there is vacuum going on, return immediately
 	swapped := atomic.CompareAndSwapInt64(&t.vacuumLockCounter, 0, 1)
 	if !swapped {
-		return 0
+		return
 	}
 	defer atomic.StoreInt64(&t.vacuumLockCounter, 0)
 
@@ -165,7 +165,6 @@ func (t *Topology) Vacuum(grpcDialOption grpc.DialOption, garbageThreshold float
 			}
 		}
 	}
-	return 0
 }
 
 func vacuumOneVolumeLayout(grpcDialOption grpc.DialOption, volumeLayout *VolumeLayout, c *Collection, garbageThreshold float64, preallocate int64) {