move volume vacuum to gRpc

2024-01-19 02:48:24 +00:00 · 2018-10-14 23:12:43 -07:00 · 2018-10-14 23:12:43 -07:00 · b1daede91b
parent 91ac2e0dd9
commit b1daede91b
14 changed files with 469 additions and 207 deletions
--- a/weed/command/master.go
+++ b/weed/command/master.go
@ -42,7 +42,7 @@ var (
 	defaultReplicaPlacement = cmdMaster.Flag.String("defaultReplication", "000", "Default replication type if not specified.")
 	// mTimeout                = cmdMaster.Flag.Int("idleTimeout", 30, "connection idle seconds")
 	mMaxCpu               = cmdMaster.Flag.Int("maxCpu", 0, "maximum number of CPUs. 0 means all available CPUs")
-	garbageThreshold      = cmdMaster.Flag.String("garbageThreshold", "0.3", "threshold to vacuum and reclaim spaces")
+	garbageThreshold      = cmdMaster.Flag.Float64("garbageThreshold", 0.3, "threshold to vacuum and reclaim spaces")
 	masterWhiteListOption = cmdMaster.Flag.String("whiteList", "", "comma separated Ip addresses having write permission. No limit if empty.")
 	masterSecureKey       = cmdMaster.Flag.String("secure.secret", "", "secret to encrypt Json Web Token(JWT)")
 	masterCpuProfile      = cmdMaster.Flag.String("cpuprofile", "", "cpu profile output file")
--- a/weed/command/server.go
+++ b/weed/command/server.go
@ -60,7 +60,7 @@ var (
 	serverWhiteListOption         = cmdServer.Flag.String("whiteList", "", "comma separated Ip addresses having write permission. No limit if empty.")
 	serverPeers                   = cmdServer.Flag.String("master.peers", "", "all master nodes in comma separated ip:masterPort list")
 	serverSecureKey               = cmdServer.Flag.String("secure.secret", "", "secret to encrypt Json Web Token(JWT)")
-	serverGarbageThreshold        = cmdServer.Flag.String("garbageThreshold", "0.3", "threshold to vacuum and reclaim spaces")
+	serverGarbageThreshold        = cmdServer.Flag.Float64("garbageThreshold", 0.3, "threshold to vacuum and reclaim spaces")
 	masterPort                    = cmdServer.Flag.Int("master.port", 9333, "master server http listen port")
 	masterMetaFolder              = cmdServer.Flag.String("master.dir", "", "data directory to store meta data, default to same as -dir specified")
 	masterVolumeSizeLimitMB       = cmdServer.Flag.Uint("master.volumeSizeLimitMB", 30*1000, "Master stops directing writes to oversized volumes.")
--- a/weed/operation/delete_content.go
+++ b/weed/operation/delete_content.go
@ -97,7 +97,7 @@ func DeleteFiles(master string, fileIds []string) ([]*volume_server_pb.DeleteRes
 // DeleteFilesAtOneVolumeServer deletes a list of files that is on one volume server via gRpc
 func DeleteFilesAtOneVolumeServer(volumeServer string, fileIds []string) (ret []*volume_server_pb.DeleteResult, err error) {

-	err = withVolumeServerClient(volumeServer, func(volumeServerClient volume_server_pb.VolumeServerClient) error {
+	err = WithVolumeServerClient(volumeServer, func(volumeServerClient volume_server_pb.VolumeServerClient) error {

 		req := &volume_server_pb.BatchDeleteRequest{
 			FileIds: fileIds,
--- a/weed/operation/grpc_client.go
+++ b/weed/operation/grpc_client.go
@ -11,7 +11,7 @@ import (
 	"github.com/chrislusf/seaweedfs/weed/util"
 )

-func withVolumeServerClient(volumeServer string, fn func(volume_server_pb.VolumeServerClient) error) error {
+func WithVolumeServerClient(volumeServer string, fn func(volume_server_pb.VolumeServerClient) error) error {

 	grpcAddress, err := toVolumeServerGrpcAddress(volumeServer)
 	if err != nil {
--- a/weed/pb/volume_server.proto
+++ b/weed/pb/volume_server.proto
@ -8,6 +8,14 @@ service VolumeServer {
    //Experts only: takes multiple fid parameters. This function does not propagate deletes to replicas.
    rpc BatchDelete (BatchDeleteRequest) returns (BatchDeleteResponse) {
    }
+    rpc VacuumVolumeCheck (VacuumVolumeCheckRequest) returns (VacuumVolumeCheckResponse) {
+    }
+    rpc VacuumVolumeCompact (VacuumVolumeCompactRequest) returns (VacuumVolumeCompactResponse) {
+    }
+    rpc VacuumVolumeCommit (VacuumVolumeCommitRequest) returns (VacuumVolumeCommitResponse) {
+    }
+    rpc VacuumVolumeCleanup (VacuumVolumeCleanupRequest) returns (VacuumVolumeCleanupResponse) {
+    }
 }

 //////////////////////////////////////////////////
@ -28,3 +36,29 @@ message DeleteResult {

 message Empty {
 }
+
+message VacuumVolumeCheckRequest {
+    uint32 volumd_id = 1;
+}
+message VacuumVolumeCheckResponse {
+    double garbage_ratio = 1;
+}
+
+message VacuumVolumeCompactRequest {
+    uint32 volumd_id = 1;
+    int64 preallocate = 2;
+}
+message VacuumVolumeCompactResponse {
+}
+
+message VacuumVolumeCommitRequest {
+    uint32 volumd_id = 1;
+}
+message VacuumVolumeCommitResponse {
+}
+
+message VacuumVolumeCleanupRequest {
+    uint32 volumd_id = 1;
+}
+message VacuumVolumeCleanupResponse {
+}
--- a/weed/pb/volume_server_pb/volume_server.pb.go
+++ b/weed/pb/volume_server_pb/volume_server.pb.go
@ -13,6 +13,14 @@ It has these top-level messages:
 	BatchDeleteResponse
 	DeleteResult
 	Empty
+	VacuumVolumeCheckRequest
+	VacuumVolumeCheckResponse
+	VacuumVolumeCompactRequest
+	VacuumVolumeCompactResponse
+	VacuumVolumeCommitRequest
+	VacuumVolumeCommitResponse
+	VacuumVolumeCleanupRequest
+	VacuumVolumeCleanupResponse
 */
 package volume_server_pb

@ -116,11 +124,131 @@ func (m *Empty) String() string            { return proto.CompactTextString(m) }
 func (*Empty) ProtoMessage()               {}
 func (*Empty) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{3} }

+type VacuumVolumeCheckRequest struct {
+	VolumdId uint32 `protobuf:"varint,1,opt,name=volumd_id,json=volumdId" json:"volumd_id,omitempty"`
+}
+
+func (m *VacuumVolumeCheckRequest) Reset()                    { *m = VacuumVolumeCheckRequest{} }
+func (m *VacuumVolumeCheckRequest) String() string            { return proto.CompactTextString(m) }
+func (*VacuumVolumeCheckRequest) ProtoMessage()               {}
+func (*VacuumVolumeCheckRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{4} }
+
+func (m *VacuumVolumeCheckRequest) GetVolumdId() uint32 {
+	if m != nil {
+		return m.VolumdId
+	}
+	return 0
+}
+
+type VacuumVolumeCheckResponse struct {
+	GarbageRatio float64 `protobuf:"fixed64,1,opt,name=garbage_ratio,json=garbageRatio" json:"garbage_ratio,omitempty"`
+}
+
+func (m *VacuumVolumeCheckResponse) Reset()                    { *m = VacuumVolumeCheckResponse{} }
+func (m *VacuumVolumeCheckResponse) String() string            { return proto.CompactTextString(m) }
+func (*VacuumVolumeCheckResponse) ProtoMessage()               {}
+func (*VacuumVolumeCheckResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{5} }
+
+func (m *VacuumVolumeCheckResponse) GetGarbageRatio() float64 {
+	if m != nil {
+		return m.GarbageRatio
+	}
+	return 0
+}
+
+type VacuumVolumeCompactRequest struct {
+	VolumdId    uint32 `protobuf:"varint,1,opt,name=volumd_id,json=volumdId" json:"volumd_id,omitempty"`
+	Preallocate int64  `protobuf:"varint,2,opt,name=preallocate" json:"preallocate,omitempty"`
+}
+
+func (m *VacuumVolumeCompactRequest) Reset()                    { *m = VacuumVolumeCompactRequest{} }
+func (m *VacuumVolumeCompactRequest) String() string            { return proto.CompactTextString(m) }
+func (*VacuumVolumeCompactRequest) ProtoMessage()               {}
+func (*VacuumVolumeCompactRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{6} }
+
+func (m *VacuumVolumeCompactRequest) GetVolumdId() uint32 {
+	if m != nil {
+		return m.VolumdId
+	}
+	return 0
+}
+
+func (m *VacuumVolumeCompactRequest) GetPreallocate() int64 {
+	if m != nil {
+		return m.Preallocate
+	}
+	return 0
+}
+
+type VacuumVolumeCompactResponse struct {
+}
+
+func (m *VacuumVolumeCompactResponse) Reset()                    { *m = VacuumVolumeCompactResponse{} }
+func (m *VacuumVolumeCompactResponse) String() string            { return proto.CompactTextString(m) }
+func (*VacuumVolumeCompactResponse) ProtoMessage()               {}
+func (*VacuumVolumeCompactResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{7} }
+
+type VacuumVolumeCommitRequest struct {
+	VolumdId uint32 `protobuf:"varint,1,opt,name=volumd_id,json=volumdId" json:"volumd_id,omitempty"`
+}
+
+func (m *VacuumVolumeCommitRequest) Reset()                    { *m = VacuumVolumeCommitRequest{} }
+func (m *VacuumVolumeCommitRequest) String() string            { return proto.CompactTextString(m) }
+func (*VacuumVolumeCommitRequest) ProtoMessage()               {}
+func (*VacuumVolumeCommitRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{8} }
+
+func (m *VacuumVolumeCommitRequest) GetVolumdId() uint32 {
+	if m != nil {
+		return m.VolumdId
+	}
+	return 0
+}
+
+type VacuumVolumeCommitResponse struct {
+}
+
+func (m *VacuumVolumeCommitResponse) Reset()                    { *m = VacuumVolumeCommitResponse{} }
+func (m *VacuumVolumeCommitResponse) String() string            { return proto.CompactTextString(m) }
+func (*VacuumVolumeCommitResponse) ProtoMessage()               {}
+func (*VacuumVolumeCommitResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{9} }
+
+type VacuumVolumeCleanupRequest struct {
+	VolumdId uint32 `protobuf:"varint,1,opt,name=volumd_id,json=volumdId" json:"volumd_id,omitempty"`
+}
+
+func (m *VacuumVolumeCleanupRequest) Reset()                    { *m = VacuumVolumeCleanupRequest{} }
+func (m *VacuumVolumeCleanupRequest) String() string            { return proto.CompactTextString(m) }
+func (*VacuumVolumeCleanupRequest) ProtoMessage()               {}
+func (*VacuumVolumeCleanupRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{10} }
+
+func (m *VacuumVolumeCleanupRequest) GetVolumdId() uint32 {
+	if m != nil {
+		return m.VolumdId
+	}
+	return 0
+}
+
+type VacuumVolumeCleanupResponse struct {
+}
+
+func (m *VacuumVolumeCleanupResponse) Reset()                    { *m = VacuumVolumeCleanupResponse{} }
+func (m *VacuumVolumeCleanupResponse) String() string            { return proto.CompactTextString(m) }
+func (*VacuumVolumeCleanupResponse) ProtoMessage()               {}
+func (*VacuumVolumeCleanupResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{11} }
+
 func init() {
 	proto.RegisterType((*BatchDeleteRequest)(nil), "volume_server_pb.BatchDeleteRequest")
 	proto.RegisterType((*BatchDeleteResponse)(nil), "volume_server_pb.BatchDeleteResponse")
 	proto.RegisterType((*DeleteResult)(nil), "volume_server_pb.DeleteResult")
 	proto.RegisterType((*Empty)(nil), "volume_server_pb.Empty")
+	proto.RegisterType((*VacuumVolumeCheckRequest)(nil), "volume_server_pb.VacuumVolumeCheckRequest")
+	proto.RegisterType((*VacuumVolumeCheckResponse)(nil), "volume_server_pb.VacuumVolumeCheckResponse")
+	proto.RegisterType((*VacuumVolumeCompactRequest)(nil), "volume_server_pb.VacuumVolumeCompactRequest")
+	proto.RegisterType((*VacuumVolumeCompactResponse)(nil), "volume_server_pb.VacuumVolumeCompactResponse")
+	proto.RegisterType((*VacuumVolumeCommitRequest)(nil), "volume_server_pb.VacuumVolumeCommitRequest")
+	proto.RegisterType((*VacuumVolumeCommitResponse)(nil), "volume_server_pb.VacuumVolumeCommitResponse")
+	proto.RegisterType((*VacuumVolumeCleanupRequest)(nil), "volume_server_pb.VacuumVolumeCleanupRequest")
+	proto.RegisterType((*VacuumVolumeCleanupResponse)(nil), "volume_server_pb.VacuumVolumeCleanupResponse")
 }

 // Reference imports to suppress errors if they are not otherwise used.
@ -136,6 +264,10 @@ const _ = grpc.SupportPackageIsVersion4
 type VolumeServerClient interface {
 	// Experts only: takes multiple fid parameters. This function does not propagate deletes to replicas.
 	BatchDelete(ctx context.Context, in *BatchDeleteRequest, opts ...grpc.CallOption) (*BatchDeleteResponse, error)
+	VacuumVolumeCheck(ctx context.Context, in *VacuumVolumeCheckRequest, opts ...grpc.CallOption) (*VacuumVolumeCheckResponse, error)
+	VacuumVolumeCompact(ctx context.Context, in *VacuumVolumeCompactRequest, opts ...grpc.CallOption) (*VacuumVolumeCompactResponse, error)
+	VacuumVolumeCommit(ctx context.Context, in *VacuumVolumeCommitRequest, opts ...grpc.CallOption) (*VacuumVolumeCommitResponse, error)
+	VacuumVolumeCleanup(ctx context.Context, in *VacuumVolumeCleanupRequest, opts ...grpc.CallOption) (*VacuumVolumeCleanupResponse, error)
 }

 type volumeServerClient struct {
@ -155,11 +287,51 @@ func (c *volumeServerClient) BatchDelete(ctx context.Context, in *BatchDeleteReq
 	return out, nil
 }

+func (c *volumeServerClient) VacuumVolumeCheck(ctx context.Context, in *VacuumVolumeCheckRequest, opts ...grpc.CallOption) (*VacuumVolumeCheckResponse, error) {
+	out := new(VacuumVolumeCheckResponse)
+	err := grpc.Invoke(ctx, "/volume_server_pb.VolumeServer/VacuumVolumeCheck", in, out, c.cc, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *volumeServerClient) VacuumVolumeCompact(ctx context.Context, in *VacuumVolumeCompactRequest, opts ...grpc.CallOption) (*VacuumVolumeCompactResponse, error) {
+	out := new(VacuumVolumeCompactResponse)
+	err := grpc.Invoke(ctx, "/volume_server_pb.VolumeServer/VacuumVolumeCompact", in, out, c.cc, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *volumeServerClient) VacuumVolumeCommit(ctx context.Context, in *VacuumVolumeCommitRequest, opts ...grpc.CallOption) (*VacuumVolumeCommitResponse, error) {
+	out := new(VacuumVolumeCommitResponse)
+	err := grpc.Invoke(ctx, "/volume_server_pb.VolumeServer/VacuumVolumeCommit", in, out, c.cc, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *volumeServerClient) VacuumVolumeCleanup(ctx context.Context, in *VacuumVolumeCleanupRequest, opts ...grpc.CallOption) (*VacuumVolumeCleanupResponse, error) {
+	out := new(VacuumVolumeCleanupResponse)
+	err := grpc.Invoke(ctx, "/volume_server_pb.VolumeServer/VacuumVolumeCleanup", in, out, c.cc, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 // Server API for VolumeServer service

 type VolumeServerServer interface {
 	// Experts only: takes multiple fid parameters. This function does not propagate deletes to replicas.
 	BatchDelete(context.Context, *BatchDeleteRequest) (*BatchDeleteResponse, error)
+	VacuumVolumeCheck(context.Context, *VacuumVolumeCheckRequest) (*VacuumVolumeCheckResponse, error)
+	VacuumVolumeCompact(context.Context, *VacuumVolumeCompactRequest) (*VacuumVolumeCompactResponse, error)
+	VacuumVolumeCommit(context.Context, *VacuumVolumeCommitRequest) (*VacuumVolumeCommitResponse, error)
+	VacuumVolumeCleanup(context.Context, *VacuumVolumeCleanupRequest) (*VacuumVolumeCleanupResponse, error)
 }

 func RegisterVolumeServerServer(s *grpc.Server, srv VolumeServerServer) {
@ -184,6 +356,78 @@ func _VolumeServer_BatchDelete_Handler(srv interface{}, ctx context.Context, dec
 	return interceptor(ctx, in, info, handler)
 }

+func _VolumeServer_VacuumVolumeCheck_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(VacuumVolumeCheckRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(VolumeServerServer).VacuumVolumeCheck(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/volume_server_pb.VolumeServer/VacuumVolumeCheck",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(VolumeServerServer).VacuumVolumeCheck(ctx, req.(*VacuumVolumeCheckRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _VolumeServer_VacuumVolumeCompact_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(VacuumVolumeCompactRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(VolumeServerServer).VacuumVolumeCompact(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/volume_server_pb.VolumeServer/VacuumVolumeCompact",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(VolumeServerServer).VacuumVolumeCompact(ctx, req.(*VacuumVolumeCompactRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _VolumeServer_VacuumVolumeCommit_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(VacuumVolumeCommitRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(VolumeServerServer).VacuumVolumeCommit(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/volume_server_pb.VolumeServer/VacuumVolumeCommit",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(VolumeServerServer).VacuumVolumeCommit(ctx, req.(*VacuumVolumeCommitRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _VolumeServer_VacuumVolumeCleanup_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(VacuumVolumeCleanupRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(VolumeServerServer).VacuumVolumeCleanup(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/volume_server_pb.VolumeServer/VacuumVolumeCleanup",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(VolumeServerServer).VacuumVolumeCleanup(ctx, req.(*VacuumVolumeCleanupRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
 var _VolumeServer_serviceDesc = grpc.ServiceDesc{
 	ServiceName: "volume_server_pb.VolumeServer",
 	HandlerType: (*VolumeServerServer)(nil),
@ -192,6 +436,22 @@ var _VolumeServer_serviceDesc = grpc.ServiceDesc{
 			MethodName: "BatchDelete",
 			Handler:    _VolumeServer_BatchDelete_Handler,
 		},
+		{
+			MethodName: "VacuumVolumeCheck",
+			Handler:    _VolumeServer_VacuumVolumeCheck_Handler,
+		},
+		{
+			MethodName: "VacuumVolumeCompact",
+			Handler:    _VolumeServer_VacuumVolumeCompact_Handler,
+		},
+		{
+			MethodName: "VacuumVolumeCommit",
+			Handler:    _VolumeServer_VacuumVolumeCommit_Handler,
+		},
+		{
+			MethodName: "VacuumVolumeCleanup",
+			Handler:    _VolumeServer_VacuumVolumeCleanup_Handler,
+		},
 	},
 	Streams:  []grpc.StreamDesc{},
 	Metadata: "volume_server.proto",
@ -200,21 +460,34 @@ var _VolumeServer_serviceDesc = grpc.ServiceDesc{
 func init() { proto.RegisterFile("volume_server.proto", fileDescriptor0) }

 var fileDescriptor0 = []byte{
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+	0x1c, 0x27, 0xb2, 0x6f, 0xde, 0xd9, 0xf9, 0x1e, 0xb3, 0xf3, 0xc9, 0x30, 0xbe, 0x95, 0x49, 0x9e,
+	0xd2, 0x4c, 0x93, 0xba, 0x25, 0x35, 0xcd, 0x94, 0x34, 0x12, 0xef, 0x97, 0x8a, 0xb3, 0x6c, 0xce,
+	0xde, 0x00, 0x7e, 0x14, 0x26, 0xba, 0xfe, 0x4c, 0x09, 0x19, 0xe2, 0x74, 0x93, 0x93, 0x36, 0x78,
+	0x04, 0x87, 0x3f, 0xe3, 0x84, 0x66, 0xf1, 0x42, 0xfb, 0x5e, 0xd8, 0x9a, 0xf4, 0x79, 0xef, 0xee,
+	0x7c, 0xb1, 0xd0, 0xec, 0x2b, 0x8c, 0x4b, 0x00, 0x9d, 0xc9, 0xa5, 0x26, 0x3c, 0x87, 0x9e, 0x22,
+	0x9d, 0x27, 0xc6, 0x01, 0x06, 0x67, 0xcf, 0xa6, 0xdb, 0x5a, 0xd3, 0x35, 0x24, 0x4f, 0x0c, 0x5f,
+	0xb5, 0xb3, 0x18, 0x86, 0x9b, 0x17, 0xf8, 0x18, 0x7a, 0x85, 0xb6, 0xef, 0x85, 0xde, 0xa4, 0xcf,
+	0xbb, 0x4e, 0x1a, 0x1f, 0x41, 0x57, 0x1b, 0x61, 0x72, 0xed, 0xdf, 0x0b, 0xbd, 0x49, 0x87, 0x17,
+	0x27, 0x7c, 0x08, 0x1d, 0x52, 0x4a, 0x2a, 0xbf, 0x65, 0xdb, 0xdd, 0x01, 0x11, 0xda, 0x3a, 0xfe,
+	0x43, 0x7e, 0x3b, 0xf4, 0x26, 0x23, 0x6e, 0xbf, 0x59, 0x0f, 0x3a, 0x5f, 0xd2, 0xcc, 0xfc, 0x66,
+	0xef, 0xc0, 0xbf, 0x14, 0x51, 0x9e, 0xa7, 0x97, 0xd6, 0xe3, 0xa7, 0x6b, 0x8a, 0x7e, 0xad, 0x66,
+	0x3f, 0x86, 0xbe, 0x75, 0xbe, 0x58, 0x39, 0x18, 0xf1, 0x43, 0x57, 0xb8, 0x58, 0xb0, 0x0f, 0x70,
+	0xb4, 0x03, 0x58, 0xbc, 0xc1, 0x73, 0x18, 0x5d, 0x09, 0x35, 0x17, 0x57, 0x34, 0x53, 0xc2, 0xc4,
+	0xd2, 0xa2, 0x3d, 0x3e, 0x2c, 0x8a, 0xfc, 0xae, 0xc6, 0xbe, 0x43, 0x50, 0x62, 0x90, 0x69, 0x26,
+	0x22, 0xd3, 0x44, 0x1c, 0x43, 0x18, 0x64, 0x8a, 0x44, 0x92, 0xc8, 0x48, 0x18, 0xb2, 0xaf, 0xd0,
+	0xe2, 0x9b, 0x25, 0xf6, 0x14, 0x8e, 0x77, 0x92, 0x3b, 0x83, 0xec, 0x7c, 0xcb, 0xbd, 0x4c, 0xd3,
+	0xb8, 0x91, 0x34, 0x7b, 0x52, 0x71, 0x6d, 0x91, 0x05, 0xef, 0xfb, 0xad, 0xdb, 0x84, 0xc4, 0x32,
+	0xcf, 0x1a, 0x11, 0x6f, 0x3b, 0x5e, 0x41, 0x1d, 0xf3, 0xd9, 0xdf, 0x36, 0x0c, 0xdd, 0xcd, 0x37,
+	0x1b, 0x23, 0xfc, 0x01, 0x83, 0x8d, 0xf8, 0xe1, 0x8b, 0x6a, 0xca, 0xaa, 0x71, 0x0e, 0x5e, 0xd6,
+	0x74, 0x15, 0x63, 0x1c, 0xe0, 0x12, 0x1e, 0x54, 0xd6, 0x8b, 0xaf, 0xaa, 0xe8, 0x7d, 0xe1, 0x09,
+	0x4e, 0x1a, 0xf5, 0xae, 0xf5, 0x0c, 0x8c, 0x77, 0xec, 0x0b, 0x4f, 0x6b, 0x58, 0x4a, 0x99, 0x09,
+	0x5e, 0x37, 0xec, 0x5e, 0xab, 0xde, 0x00, 0x56, 0x97, 0x89, 0x27, 0xb5, 0x34, 0xff, 0xc3, 0x12,
+	0x9c, 0x36, 0x6b, 0xde, 0x3b, 0xa8, 0x5b, 0x73, 0xed, 0xa0, 0xa5, 0x20, 0xd5, 0x0e, 0x5a, 0xce,
+	0x0e, 0x3b, 0x98, 0x77, 0xed, 0x5f, 0xef, 0xed, 0xbf, 0x00, 0x00, 0x00, 0xff, 0xff, 0x13, 0x2b,
+	0x80, 0x54, 0x0c, 0x05, 0x00, 0x00,
 }
--- a/weed/server/master_server.go
+++ b/weed/server/master_server.go
@ -24,7 +24,7 @@ type MasterServer struct {
 	preallocate             int64
 	pulseSeconds            int
 	defaultReplicaPlacement string
-	garbageThreshold        string
+	garbageThreshold        float64
 	guard                   *security.Guard

 	Topo   *topology.Topology
@ -43,7 +43,7 @@ func NewMasterServer(r *mux.Router, port int, metaFolder string,
 	preallocate bool,
 	pulseSeconds int,
 	defaultReplicaPlacement string,
-	garbageThreshold string,
+	garbageThreshold float64,
 	whiteList []string,
 	secureKey string,
 ) *MasterServer {
--- a/weed/server/master_server_handlers_admin.go
+++ b/weed/server/master_server_handlers_admin.go
@ -37,9 +37,15 @@ func (ms *MasterServer) dirStatusHandler(w http.ResponseWriter, r *http.Request)
 }

 func (ms *MasterServer) volumeVacuumHandler(w http.ResponseWriter, r *http.Request) {
-	gcThreshold := r.FormValue("garbageThreshold")
-	if gcThreshold == "" {
-		gcThreshold = ms.garbageThreshold
+	gcString := r.FormValue("garbageThreshold")
+	gcThreshold := ms.garbageThreshold
+	if gcString != "" {
+		var err error
+		gcThreshold, err = strconv.ParseFloat(gcString, 32)
+		if err != nil {
+			glog.V(0).Infof("garbageThreshold %s is not a valid float number: %v", gcString, err)
+			return
+		}
 	}
 	glog.Infoln("garbageThreshold =", gcThreshold)
 	ms.Topo.Vacuum(gcThreshold, ms.preallocate)
--- a/weed/server/volume_grpc_server_vacuum.go
+++ b/weed/server/volume_grpc_server_vacuum.go
@ -0,0 +1,73 @@
+package weed_server
+
+import (
+	"context"
+
+	"github.com/chrislusf/seaweedfs/weed/glog"
+	"github.com/chrislusf/seaweedfs/weed/pb/volume_server_pb"
+	"github.com/chrislusf/seaweedfs/weed/storage"
+)
+
+func (vs *VolumeServer) VacuumVolumeCheck(ctx context.Context, req *volume_server_pb.VacuumVolumeCheckRequest) (*volume_server_pb.VacuumVolumeCheckResponse, error) {
+
+	resp := &volume_server_pb.VacuumVolumeCheckResponse{}
+
+	garbageRatio, err := vs.store.CheckCompactVolume(storage.VolumeId(req.VolumdId))
+
+	resp.GarbageRatio = garbageRatio
+
+	if err != nil {
+		glog.V(3).Infof("check volume %d: %f", req.VolumdId, err)
+	}
+
+	return resp, err
+
+}
+
+func (vs *VolumeServer) VacuumVolumeCompact(ctx context.Context, req *volume_server_pb.VacuumVolumeCompactRequest) (*volume_server_pb.VacuumVolumeCompactResponse, error) {
+
+	resp := &volume_server_pb.VacuumVolumeCompactResponse{}
+
+	err := vs.store.CompactVolume(storage.VolumeId(req.VolumdId), req.Preallocate)
+
+	if err != nil {
+		glog.Errorf("compact volume %d: %f", req.VolumdId, err)
+	} else {
+		glog.V(1).Infof("compact volume %d", req.VolumdId)
+	}
+
+	return resp, err
+
+}
+
+func (vs *VolumeServer) VacuumVolumeCommit(ctx context.Context, req *volume_server_pb.VacuumVolumeCommitRequest) (*volume_server_pb.VacuumVolumeCommitResponse, error) {
+
+	resp := &volume_server_pb.VacuumVolumeCommitResponse{}
+
+	err := vs.store.CommitCompactVolume(storage.VolumeId(req.VolumdId))
+
+	if err != nil {
+		glog.Errorf("commit volume %d: %f", req.VolumdId, err)
+	} else {
+		glog.V(1).Infof("commit volume %d", req.VolumdId)
+	}
+
+	return resp, err
+
+}
+
+func (vs *VolumeServer) VacuumVolumeCleanup(ctx context.Context, req *volume_server_pb.VacuumVolumeCleanupRequest) (*volume_server_pb.VacuumVolumeCleanupResponse, error) {
+
+	resp := &volume_server_pb.VacuumVolumeCleanupResponse{}
+
+	err := vs.store.CommitCleanupVolume(storage.VolumeId(req.VolumdId))
+
+	if err != nil {
+		glog.Errorf("cleanup volume %d: %f", req.VolumdId, err)
+	} else {
+		glog.V(1).Infof("cleanup volume %d", req.VolumdId)
+	}
+
+	return resp, err
+
+}
--- a/weed/server/volume_server.go
+++ b/weed/server/volume_server.go
@ -48,10 +48,6 @@ func NewVolumeServer(adminMux, publicMux *http.ServeMux, ip string,
 	adminMux.HandleFunc("/ui/index.html", vs.uiStatusHandler)
 	adminMux.HandleFunc("/status", vs.guard.WhiteList(vs.statusHandler))
 	adminMux.HandleFunc("/admin/assign_volume", vs.guard.WhiteList(vs.assignVolumeHandler))
-	adminMux.HandleFunc("/admin/vacuum/check", vs.guard.WhiteList(vs.vacuumVolumeCheckHandler))
-	adminMux.HandleFunc("/admin/vacuum/compact", vs.guard.WhiteList(vs.vacuumVolumeCompactHandler))
-	adminMux.HandleFunc("/admin/vacuum/commit", vs.guard.WhiteList(vs.vacuumVolumeCommitHandler))
-	adminMux.HandleFunc("/admin/vacuum/cleanup", vs.guard.WhiteList(vs.vacuumVolumeCleanupHandler))
 	adminMux.HandleFunc("/admin/delete_collection", vs.guard.WhiteList(vs.deleteCollectionHandler))
 	adminMux.HandleFunc("/admin/sync/status", vs.guard.WhiteList(vs.getVolumeSyncStatusHandler))
 	adminMux.HandleFunc("/admin/sync/index", vs.guard.WhiteList(vs.getVolumeIndexContentHandler))
--- a/weed/server/volume_server_handlers_vacuum.go
+++ b/weed/server/volume_server_handlers_vacuum.go
@ -1,53 +0,0 @@
-package weed_server
-
-import (
-	"net/http"
-	"strconv"
-
-	"github.com/chrislusf/seaweedfs/weed/glog"
-)
-
-func (vs *VolumeServer) vacuumVolumeCheckHandler(w http.ResponseWriter, r *http.Request) {
-	err, ret := vs.store.CheckCompactVolume(r.FormValue("volume"), r.FormValue("garbageThreshold"))
-	if err == nil {
-		writeJsonQuiet(w, r, http.StatusOK, map[string]interface{}{"error": "", "result": ret})
-	} else {
-		writeJsonQuiet(w, r, http.StatusInternalServerError, map[string]interface{}{"error": err.Error(), "result": false})
-	}
-	glog.V(2).Infoln("checked compacting volume =", r.FormValue("volume"), "garbageThreshold =", r.FormValue("garbageThreshold"), "vacuum =", ret)
-}
-func (vs *VolumeServer) vacuumVolumeCompactHandler(w http.ResponseWriter, r *http.Request) {
-	var preallocate int64
-	var err error
-	if r.FormValue("preallocate") != "" {
-		preallocate, err = strconv.ParseInt(r.FormValue("preallocate"), 10, 64)
-		if err != nil {
-			glog.V(0).Infof("Failed to parse int64 preallocate = %s: %v", r.FormValue("preallocate"), err)
-		}
-	}
-	err = vs.store.CompactVolume(r.FormValue("volume"), preallocate)
-	if err == nil {
-		writeJsonQuiet(w, r, http.StatusOK, map[string]string{"error": ""})
-	} else {
-		writeJsonError(w, r, http.StatusInternalServerError, err)
-	}
-	glog.V(2).Infoln("compacted volume =", r.FormValue("volume"), ", error =", err)
-}
-func (vs *VolumeServer) vacuumVolumeCommitHandler(w http.ResponseWriter, r *http.Request) {
-	err := vs.store.CommitCompactVolume(r.FormValue("volume"))
-	if err == nil {
-		writeJsonQuiet(w, r, http.StatusOK, map[string]string{"error": ""})
-	} else {
-		writeJsonError(w, r, http.StatusInternalServerError, err)
-	}
-	glog.V(2).Infoln("commit compact volume =", r.FormValue("volume"), ", error =", err)
-}
-func (vs *VolumeServer) vacuumVolumeCleanupHandler(w http.ResponseWriter, r *http.Request) {
-	err := vs.store.CommitCleanupVolume(r.FormValue("volume"))
-	if err == nil {
-		writeJsonQuiet(w, r, http.StatusOK, map[string]string{"error": ""})
-	} else {
-		writeJsonError(w, r, http.StatusInternalServerError, err)
-	}
-	glog.V(2).Infoln("cleanup compact volume =", r.FormValue("volume"), ", error =", err)
-}
--- a/weed/storage/store_vacuum.go
+++ b/weed/storage/store_vacuum.go
@ -2,51 +2,29 @@ package storage

 import (
 	"fmt"
-	"strconv"
-
 	"github.com/chrislusf/seaweedfs/weed/glog"
 )

-func (s *Store) CheckCompactVolume(volumeIdString string, garbageThresholdString string) (error, bool) {
-	vid, err := NewVolumeId(volumeIdString)
-	if err != nil {
-		return fmt.Errorf("Volume Id %s is not a valid unsigned integer", volumeIdString), false
+func (s *Store) CheckCompactVolume(volumeId VolumeId) (float64, error) {
+	if v := s.findVolume(volumeId); v != nil {
+		glog.V(3).Infof("volumd %d garbage level: %f", volumeId, v.garbageLevel())
+		return v.garbageLevel(), nil
 	}
-	garbageThreshold, e := strconv.ParseFloat(garbageThresholdString, 32)
-	if e != nil {
-		return fmt.Errorf("garbageThreshold %s is not a valid float number", garbageThresholdString), false
-	}
-	if v := s.findVolume(vid); v != nil {
-		glog.V(3).Infoln(vid, "garbage level is", v.garbageLevel())
-		return nil, garbageThreshold < v.garbageLevel()
-	}
-	return fmt.Errorf("volume id %d is not found during check compact", vid), false
-}
-func (s *Store) CompactVolume(volumeIdString string, preallocate int64) error {
-	vid, err := NewVolumeId(volumeIdString)
-	if err != nil {
-		return fmt.Errorf("Volume Id %s is not a valid unsigned integer", volumeIdString)
+	return 0, fmt.Errorf("volume id %d is not found during check compact", volumeId)
 }
+func (s *Store) CompactVolume(vid VolumeId, preallocate int64) error {
 	if v := s.findVolume(vid); v != nil {
 		return v.Compact(preallocate)
 	}
 	return fmt.Errorf("volume id %d is not found during compact", vid)
 }
-func (s *Store) CommitCompactVolume(volumeIdString string) error {
-	vid, err := NewVolumeId(volumeIdString)
-	if err != nil {
-		return fmt.Errorf("Volume Id %s is not a valid unsigned integer", volumeIdString)
-	}
+func (s *Store) CommitCompactVolume(vid VolumeId) error {
 	if v := s.findVolume(vid); v != nil {
 		return v.commitCompact()
 	}
 	return fmt.Errorf("volume id %d is not found during commit compact", vid)
 }
-func (s *Store) CommitCleanupVolume(volumeIdString string) error {
-	vid, err := NewVolumeId(volumeIdString)
-	if err != nil {
-		return fmt.Errorf("Volume Id %s is not a valid unsigned integer", volumeIdString)
-	}
+func (s *Store) CommitCleanupVolume(vid VolumeId) error {
 	if v := s.findVolume(vid); v != nil {
 		return v.cleanupCompact()
 	}
--- a/weed/topology/topology_event_handling.go
+++ b/weed/topology/topology_event_handling.go
@ -8,7 +8,7 @@ import (
 	"github.com/chrislusf/seaweedfs/weed/storage"
 )

-func (t *Topology) StartRefreshWritableVolumes(garbageThreshold string, preallocate int64) {
+func (t *Topology) StartRefreshWritableVolumes(garbageThreshold float64, preallocate int64) {
 	go func() {
 		for {
 			if t.IsLeader() {
@ -18,7 +18,7 @@ func (t *Topology) StartRefreshWritableVolumes(garbageThreshold string, prealloc
 			time.Sleep(time.Duration(float32(t.pulse*1e3)*(1+rand.Float32())) * time.Millisecond)
 		}
 	}()
-	go func(garbageThreshold string) {
+	go func(garbageThreshold float64) {
 		c := time.Tick(15 * time.Minute)
 		for _ = range c {
 			if t.IsLeader() {
--- a/weed/topology/topology_vacuum.go
+++ b/weed/topology/topology_vacuum.go
@ -1,28 +1,33 @@
 package topology

 import (
-	"encoding/json"
-	"errors"
-	"net/url"
+	"context"
 	"time"

-	"fmt"
 	"github.com/chrislusf/seaweedfs/weed/glog"
+	"github.com/chrislusf/seaweedfs/weed/operation"
+	"github.com/chrislusf/seaweedfs/weed/pb/volume_server_pb"
 	"github.com/chrislusf/seaweedfs/weed/storage"
-	"github.com/chrislusf/seaweedfs/weed/util"
 )

-func batchVacuumVolumeCheck(vl *VolumeLayout, vid storage.VolumeId, locationlist *VolumeLocationList, garbageThreshold string) bool {
+func batchVacuumVolumeCheck(vl *VolumeLayout, vid storage.VolumeId, locationlist *VolumeLocationList, garbageThreshold float64) bool {
 	ch := make(chan bool, locationlist.Length())
 	for index, dn := range locationlist.list {
 		go func(index int, url string, vid storage.VolumeId) {
-			//glog.V(0).Infoln(index, "Check vacuuming", vid, "on", dn.Url())
-			if e, ret := vacuumVolume_Check(url, vid, garbageThreshold); e != nil {
-				//glog.V(0).Infoln(index, "Error when checking vacuuming", vid, "on", url, e)
+			err := operation.WithVolumeServerClient(url, func(volumeServerClient volume_server_pb.VolumeServerClient) error {
+				resp, err := volumeServerClient.VacuumVolumeCheck(context.Background(), &volume_server_pb.VacuumVolumeCheckRequest{
+					VolumdId: uint32(vid),
+				})
+				if err != nil {
 					ch <- false
-			} else {
-				//glog.V(0).Infoln(index, "Checked vacuuming", vid, "on", url, "needVacuum", ret)
-				ch <- ret
+					return err
+				}
+				isNeeded := resp.GarbageRatio > garbageThreshold
+				ch <- isNeeded
+				return nil
+			})
+			if err != nil {
+				glog.V(0).Infof("Checking vacuuming %d on %s: %v", vid, url, err)
 			}
 		}(index, dn.Url(), vid)
 	}
@ -44,11 +49,17 @@ func batchVacuumVolumeCompact(vl *VolumeLayout, vid storage.VolumeId, locationli
 	for index, dn := range locationlist.list {
 		go func(index int, url string, vid storage.VolumeId) {
 			glog.V(0).Infoln(index, "Start vacuuming", vid, "on", url)
-			if e := vacuumVolume_Compact(url, vid, preallocate); e != nil {
-				glog.V(0).Infoln(index, "Error when vacuuming", vid, "on", url, e)
+			err := operation.WithVolumeServerClient(url, func(volumeServerClient volume_server_pb.VolumeServerClient) error {
+				_, err := volumeServerClient.VacuumVolumeCompact(context.Background(), &volume_server_pb.VacuumVolumeCompactRequest{
+					VolumdId: uint32(vid),
+				})
+				return err
+			})
+			if err != nil {
+				glog.Errorf("Error when vacuuming %d on %s: %v", vid, url, err)
 				ch <- false
 			} else {
-				glog.V(0).Infoln(index, "Complete vacuuming", vid, "on", url)
+				glog.V(0).Infof("Complete vacuuming %d on %s", vid, url)
 				ch <- true
 			}
 		}(index, dn.Url(), vid)
@ -69,11 +80,17 @@ func batchVacuumVolumeCommit(vl *VolumeLayout, vid storage.VolumeId, locationlis
 	isCommitSuccess := true
 	for _, dn := range locationlist.list {
 		glog.V(0).Infoln("Start Commiting vacuum", vid, "on", dn.Url())
-		if e := vacuumVolume_Commit(dn.Url(), vid); e != nil {
-			glog.V(0).Infoln("Error when committing vacuum", vid, "on", dn.Url(), e)
+		err := operation.WithVolumeServerClient(dn.Url(), func(volumeServerClient volume_server_pb.VolumeServerClient) error {
+			_, err := volumeServerClient.VacuumVolumeCommit(context.Background(), &volume_server_pb.VacuumVolumeCommitRequest{
+				VolumdId: uint32(vid),
+			})
+			return err
+		})
+		if err != nil {
+			glog.Errorf("Error when committing vacuum %d on %s: %v", vid, dn.Url(), err)
 			isCommitSuccess = false
 		} else {
-			glog.V(0).Infoln("Complete Commiting vacuum", vid, "on", dn.Url())
+			glog.V(0).Infof("Complete Commiting vacuum %d on %s", vid, dn.Url())
 		}
 		if isCommitSuccess {
 			vl.SetVolumeAvailable(dn, vid)
@ -84,16 +101,22 @@ func batchVacuumVolumeCommit(vl *VolumeLayout, vid storage.VolumeId, locationlis
 func batchVacuumVolumeCleanup(vl *VolumeLayout, vid storage.VolumeId, locationlist *VolumeLocationList) {
 	for _, dn := range locationlist.list {
 		glog.V(0).Infoln("Start cleaning up", vid, "on", dn.Url())
-		if e := vacuumVolume_Cleanup(dn.Url(), vid); e != nil {
-			glog.V(0).Infoln("Error when cleaning up", vid, "on", dn.Url(), e)
+		err := operation.WithVolumeServerClient(dn.Url(), func(volumeServerClient volume_server_pb.VolumeServerClient) error {
+			_, err := volumeServerClient.VacuumVolumeCleanup(context.Background(), &volume_server_pb.VacuumVolumeCleanupRequest{
+				VolumdId: uint32(vid),
+			})
+			return err
+		})
+		if err != nil {
+			glog.Errorf("Error when cleaning up vacuum %d on %s: %v", vid, dn.Url(), err)
 		} else {
-			glog.V(0).Infoln("Complete cleaning up", vid, "on", dn.Url())
+			glog.V(0).Infof("Complete cleaning up vacuum %d on %s", vid, dn.Url())
 		}
 	}
 }

-func (t *Topology) Vacuum(garbageThreshold string, preallocate int64) int {
-	glog.V(0).Infof("Start vacuum on demand with threshold:%s", garbageThreshold)
+func (t *Topology) Vacuum(garbageThreshold float64, preallocate int64) int {
+	glog.V(0).Infof("Start vacuum on demand with threshold: %f", garbageThreshold)
 	for _, col := range t.collectionMap.Items() {
 		c := col.(*Collection)
 		for _, vl := range c.storageType2VolumeLayout.Items() {
@ -126,71 +149,3 @@ type VacuumVolumeResult struct {
 	Result bool
 	Error  string
 }
-
-func vacuumVolume_Check(urlLocation string, vid storage.VolumeId, garbageThreshold string) (error, bool) {
-	values := make(url.Values)
-	values.Add("volume", vid.String())
-	values.Add("garbageThreshold", garbageThreshold)
-	jsonBlob, err := util.Post("http://"+urlLocation+"/admin/vacuum/check", values)
-	if err != nil {
-		glog.V(0).Infoln("parameters:", values)
-		return err, false
-	}
-	var ret VacuumVolumeResult
-	if err := json.Unmarshal(jsonBlob, &ret); err != nil {
-		return err, false
-	}
-	if ret.Error != "" {
-		return errors.New(ret.Error), false
-	}
-	return nil, ret.Result
-}
-func vacuumVolume_Compact(urlLocation string, vid storage.VolumeId, preallocate int64) error {
-	values := make(url.Values)
-	values.Add("volume", vid.String())
-	values.Add("preallocate", fmt.Sprintf("%d", preallocate))
-	jsonBlob, err := util.Post("http://"+urlLocation+"/admin/vacuum/compact", values)
-	if err != nil {
-		return err
-	}
-	var ret VacuumVolumeResult
-	if err := json.Unmarshal(jsonBlob, &ret); err != nil {
-		return err
-	}
-	if ret.Error != "" {
-		return errors.New(ret.Error)
-	}
-	return nil
-}
-func vacuumVolume_Commit(urlLocation string, vid storage.VolumeId) error {
-	values := make(url.Values)
-	values.Add("volume", vid.String())
-	jsonBlob, err := util.Post("http://"+urlLocation+"/admin/vacuum/commit", values)
-	if err != nil {
-		return err
-	}
-	var ret VacuumVolumeResult
-	if err := json.Unmarshal(jsonBlob, &ret); err != nil {
-		return err
-	}
-	if ret.Error != "" {
-		return errors.New(ret.Error)
-	}
-	return nil
-}
-func vacuumVolume_Cleanup(urlLocation string, vid storage.VolumeId) error {
-	values := make(url.Values)
-	values.Add("volume", vid.String())
-	jsonBlob, err := util.Post("http://"+urlLocation+"/admin/vacuum/cleanup", values)
-	if err != nil {
-		return err
-	}
-	var ret VacuumVolumeResult
-	if err := json.Unmarshal(jsonBlob, &ret); err != nil {
-		return err
-	}
-	if ret.Error != "" {
-		return errors.New(ret.Error)
-	}
-	return nil
-}