add volume delete grpc API

fix https://github.com/chrislusf/seaweedfs/issues/808

4 files changed, 168 insertions, 69 deletions

diff --git a/weed/pb/volume_server.proto b/weed/pb/volume_server.proto
index 8e570f4eb..8ab67a1bf 100644
--- a/weed/pb/volume_server.proto
+++ b/weed/pb/volume_server.proto
@@ -33,6 +33,8 @@ service VolumeServer {
     }
     rpc VolumeUnmount (VolumeUnmountRequest) returns (VolumeUnmountResponse) {
     }
+    rpc VolumeDelete (VolumeDeleteRequest) returns (VolumeDeleteResponse) {
+    }
 
     // rpc VolumeUiPage (VolumeUiPageRequest) returns (VolumeUiPageResponse) {}
 
@@ -142,6 +144,12 @@ message VolumeUnmountRequest {
 message VolumeUnmountResponse {
 }
 
+message VolumeDeleteRequest {
+    uint32 volumd_id = 1;
+}
+message VolumeDeleteResponse {
+}
+
 message VolumeUiPageRequest {
 }
 message VolumeUiPageResponse {
diff --git a/weed/pb/volume_server_pb/volume_server.pb.go b/weed/pb/volume_server_pb/volume_server.pb.go
index 58964766d..fa700e2e5 100644
--- a/weed/pb/volume_server_pb/volume_server.pb.go
+++ b/weed/pb/volume_server_pb/volume_server.pb.go
@@ -35,6 +35,8 @@ It has these top-level messages:
 	VolumeMountResponse
 	VolumeUnmountRequest
 	VolumeUnmountResponse
+	VolumeDeleteRequest
+	VolumeDeleteResponse
 	VolumeUiPageRequest
 	VolumeUiPageResponse
 	DiskStatus
@@ -558,13 +560,37 @@ func (m *VolumeUnmountResponse) String() string            { return proto.Compac
 func (*VolumeUnmountResponse) ProtoMessage()               {}
 func (*VolumeUnmountResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{25} }
 
+type VolumeDeleteRequest struct {
+	VolumdId uint32 `protobuf:"varint,1,opt,name=volumd_id,json=volumdId" json:"volumd_id,omitempty"`
+}
+
+func (m *VolumeDeleteRequest) Reset()                    { *m = VolumeDeleteRequest{} }
+func (m *VolumeDeleteRequest) String() string            { return proto.CompactTextString(m) }
+func (*VolumeDeleteRequest) ProtoMessage()               {}
+func (*VolumeDeleteRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{26} }
+
+func (m *VolumeDeleteRequest) GetVolumdId() uint32 {
+	if m != nil {
+		return m.VolumdId
+	}
+	return 0
+}
+
+type VolumeDeleteResponse struct {
+}
+
+func (m *VolumeDeleteResponse) Reset()                    { *m = VolumeDeleteResponse{} }
+func (m *VolumeDeleteResponse) String() string            { return proto.CompactTextString(m) }
+func (*VolumeDeleteResponse) ProtoMessage()               {}
+func (*VolumeDeleteResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{27} }
+
 type VolumeUiPageRequest struct {
 }
 
 func (m *VolumeUiPageRequest) Reset()                    { *m = VolumeUiPageRequest{} }
 func (m *VolumeUiPageRequest) String() string            { return proto.CompactTextString(m) }
 func (*VolumeUiPageRequest) ProtoMessage()               {}
-func (*VolumeUiPageRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{26} }
+func (*VolumeUiPageRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{28} }
 
 type VolumeUiPageResponse struct {
 }
@@ -572,7 +598,7 @@ type VolumeUiPageResponse struct {
 func (m *VolumeUiPageResponse) Reset()                    { *m = VolumeUiPageResponse{} }
 func (m *VolumeUiPageResponse) String() string            { return proto.CompactTextString(m) }
 func (*VolumeUiPageResponse) ProtoMessage()               {}
-func (*VolumeUiPageResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{27} }
+func (*VolumeUiPageResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{29} }
 
 type DiskStatus struct {
 	Dir  string `protobuf:"bytes,1,opt,name=dir" json:"dir,omitempty"`
@@ -584,7 +610,7 @@ type DiskStatus struct {
 func (m *DiskStatus) Reset()                    { *m = DiskStatus{} }
 func (m *DiskStatus) String() string            { return proto.CompactTextString(m) }
 func (*DiskStatus) ProtoMessage()               {}
-func (*DiskStatus) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{28} }
+func (*DiskStatus) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{30} }
 
 func (m *DiskStatus) GetDir() string {
 	if m != nil {
@@ -627,7 +653,7 @@ type MemStatus struct {
 func (m *MemStatus) Reset()                    { *m = MemStatus{} }
 func (m *MemStatus) String() string            { return proto.CompactTextString(m) }
 func (*MemStatus) ProtoMessage()               {}
-func (*MemStatus) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{29} }
+func (*MemStatus) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{31} }
 
 func (m *MemStatus) GetGoroutines() int32 {
 	if m != nil {
@@ -705,6 +731,8 @@ func init() {
 	proto.RegisterType((*VolumeMountResponse)(nil), "volume_server_pb.VolumeMountResponse")
 	proto.RegisterType((*VolumeUnmountRequest)(nil), "volume_server_pb.VolumeUnmountRequest")
 	proto.RegisterType((*VolumeUnmountResponse)(nil), "volume_server_pb.VolumeUnmountResponse")
+	proto.RegisterType((*VolumeDeleteRequest)(nil), "volume_server_pb.VolumeDeleteRequest")
+	proto.RegisterType((*VolumeDeleteResponse)(nil), "volume_server_pb.VolumeDeleteResponse")
 	proto.RegisterType((*VolumeUiPageRequest)(nil), "volume_server_pb.VolumeUiPageRequest")
 	proto.RegisterType((*VolumeUiPageResponse)(nil), "volume_server_pb.VolumeUiPageResponse")
 	proto.RegisterType((*DiskStatus)(nil), "volume_server_pb.DiskStatus")
@@ -735,6 +763,7 @@ type VolumeServerClient interface {
 	VolumeSyncData(ctx context.Context, in *VolumeSyncDataRequest, opts ...grpc.CallOption) (VolumeServer_VolumeSyncDataClient, error)
 	VolumeMount(ctx context.Context, in *VolumeMountRequest, opts ...grpc.CallOption) (*VolumeMountResponse, error)
 	VolumeUnmount(ctx context.Context, in *VolumeUnmountRequest, opts ...grpc.CallOption) (*VolumeUnmountResponse, error)
+	VolumeDelete(ctx context.Context, in *VolumeDeleteRequest, opts ...grpc.CallOption) (*VolumeDeleteResponse, error)
 }
 
 type volumeServerClient struct {
@@ -899,6 +928,15 @@ func (c *volumeServerClient) VolumeUnmount(ctx context.Context, in *VolumeUnmoun
 	return out, nil
 }
 
+func (c *volumeServerClient) VolumeDelete(ctx context.Context, in *VolumeDeleteRequest, opts ...grpc.CallOption) (*VolumeDeleteResponse, error) {
+	out := new(VolumeDeleteResponse)
+	err := grpc.Invoke(ctx, "/volume_server_pb.VolumeServer/VolumeDelete", in, out, c.cc, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 // Server API for VolumeServer service
 
 type VolumeServerServer interface {
@@ -915,6 +953,7 @@ type VolumeServerServer interface {
 	VolumeSyncData(*VolumeSyncDataRequest, VolumeServer_VolumeSyncDataServer) error
 	VolumeMount(context.Context, *VolumeMountRequest) (*VolumeMountResponse, error)
 	VolumeUnmount(context.Context, *VolumeUnmountRequest) (*VolumeUnmountResponse, error)
+	VolumeDelete(context.Context, *VolumeDeleteRequest) (*VolumeDeleteResponse, error)
 }
 
 func RegisterVolumeServerServer(s *grpc.Server, srv VolumeServerServer) {
@@ -1143,6 +1182,24 @@ func _VolumeServer_VolumeUnmount_Handler(srv interface{}, ctx context.Context, d
 	return interceptor(ctx, in, info, handler)
 }
 
+func _VolumeServer_VolumeDelete_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(VolumeDeleteRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(VolumeServerServer).VolumeDelete(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/volume_server_pb.VolumeServer/VolumeDelete",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(VolumeServerServer).VolumeDelete(ctx, req.(*VolumeDeleteRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
 var _VolumeServer_serviceDesc = grpc.ServiceDesc{
 	ServiceName: "volume_server_pb.VolumeServer",
 	HandlerType: (*VolumeServerServer)(nil),
@@ -1187,6 +1244,10 @@ var _VolumeServer_serviceDesc = grpc.ServiceDesc{
 			MethodName: "VolumeUnmount",
 			Handler:    _VolumeServer_VolumeUnmount_Handler,
 		},
+		{
+			MethodName: "VolumeDelete",
+			Handler:    _VolumeServer_VolumeDelete_Handler,
+		},
 	},
 	Streams: []grpc.StreamDesc{
 		{
@@ -1206,69 +1267,71 @@ var _VolumeServer_serviceDesc = grpc.ServiceDesc{
 func init() { proto.RegisterFile("volume_server.proto", fileDescriptor0) }
 
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+	0xef, 0xaa, 0xe6, 0x38, 0x09, 0x7d, 0x9f, 0xb8, 0x9c, 0x86, 0x41, 0x02, 0xbb, 0x07, 0xe0, 0x2e,
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+	0x63, 0x74, 0x16, 0x28, 0xb7, 0xb5, 0xca, 0x9f, 0x75, 0x78, 0x27, 0xef, 0x30, 0x7f, 0x3d, 0x8d,
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+	0x80, 0x06, 0xe7, 0xbe, 0xd9, 0x92, 0x27, 0x62, 0x69, 0xef, 0xc0, 0x76, 0x36, 0x52, 0x9d, 0xc2,
+	0x17, 0xb0, 0xab, 0x24, 0xe7, 0x6f, 0x02, 0xf7, 0x5c, 0x7e, 0x09, 0xb5, 0x0a, 0xfe, 0xb7, 0x01,
+	0x66, 0xd1, 0x50, 0x77, 0xf0, 0xff, 0xcd, 0xff, 0xdf, 0x66, 0x87, 0xde, 0x83, 0x2e, 0x77, 0xa8,
+	0x3f, 0x09, 0xa7, 0x53, 0x46, 0xb8, 0xb9, 0x39, 0x32, 0xc6, 0x4d, 0x0c, 0x42, 0xf4, 0x5c, 0x4a,
+	0xd0, 0x01, 0x0c, 0x5c, 0xd5, 0xc5, 0x93, 0x88, 0x5c, 0x53, 0x26, 0x90, 0xdb, 0x32, 0xb0, 0xbb,
+	0x6e, 0xd2, 0xdd, 0x4a, 0x8c, 0x6c, 0xe8, 0x53, 0xef, 0x66, 0x22, 0x87, 0x87, 0xfc, 0xf4, 0x3b,
+	0x12, 0xad, 0x4b, 0xbd, 0x9b, 0x1f, 0xa8, 0x4f, 0xce, 0xc5, 0x04, 0xf8, 0x1c, 0x76, 0x56, 0xc9,
+	0x9f, 0x05, 0x1e, 0xb9, 0xa9, 0x55, 0xb4, 0x1f, 0xd3, 0xc5, 0xd6, 0x66, 0xba, 0x64, 0x87, 0x80,
+	0xa8, 0x10, 0x28, 0xbf, 0x6e, 0x18, 0x70, 0x12, 0x70, 0x09, 0xd0, 0xc3, 0x03, 0x79, 0x22, 0x9c,
+	0x9f, 0x28, 0xb9, 0xfd, 0xbb, 0x01, 0xf7, 0x56, 0x48, 0xa7, 0x0e, 0x77, 0x6a, 0xb5, 0x9e, 0x05,
+	0x9d, 0x65, 0xf6, 0x77, 0xd4, 0x59, 0xb2, 0x17, 0x63, 0x51, 0x57, 0xaf, 0x21, 0x4f, 0xf4, 0xae,
+	0x6c, 0x00, 0x0a, 0x27, 0x01, 0x21, 0x9e, 0x9a, 0xae, 0xea, 0x1a, 0x3a, 0x4a, 0x70, 0xe6, 0xd9,
+	0x5f, 0xa7, 0x6b, 0xa3, 0x42, 0xd3, 0x39, 0xbe, 0x0f, 0xbd, 0x92, 0xec, 0xba, 0xd3, 0x54, 0x62,
+	0x9f, 0x01, 0x52, 0xc6, 0xcf, 0xc2, 0x38, 0xa8, 0x37, 0x53, 0xee, 0xc1, 0x30, 0x63, 0xa2, 0x1b,
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+	0x1d, 0x27, 0x4e, 0xb2, 0x04, 0x77, 0x2b, 0xd8, 0x4e, 0x12, 0x41, 0x96, 0xe3, 0x56, 0x01, 0xbf,
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+	0x95, 0xfa, 0xc4, 0x44, 0xef, 0x7b, 0x34, 0xd2, 0x73, 0x4a, 0x2c, 0x85, 0xc4, 0xf1, 0x7d, 0x79,
+	0x9f, 0x4d, 0x2c, 0x96, 0xe2, 0xca, 0x62, 0x46, 0x3c, 0x79, 0x91, 0x4d, 0x2c, 0xd7, 0x42, 0x36,
+	0x8d, 0x88, 0xba, 0xc6, 0x26, 0x96, 0x6b, 0xfb, 0x0f, 0x03, 0xb6, 0x9e, 0x91, 0xb9, 0x46, 0xde,
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+	0x84, 0xe2, 0x53, 0xc4, 0xfa, 0xa8, 0x42, 0x4b, 0x17, 0x7b, 0x03, 0x05, 0xf0, 0x76, 0x81, 0x9a,
+	0xd1, 0xa3, 0xa2, 0xf5, 0x3a, 0xe2, 0xb7, 0x1e, 0xd7, 0xd2, 0x5d, 0xfa, 0xe3, 0x30, 0x2c, 0xe1,
+	0x5a, 0x74, 0x58, 0x81, 0x92, 0xe1, 0x7b, 0xeb, 0xe3, 0x9a, 0xda, 0x4b, 0xaf, 0xaf, 0x01, 0x15,
+	0x89, 0x18, 0x3d, 0xae, 0x84, 0x59, 0x11, 0xbd, 0x75, 0x58, 0x4f, 0x79, 0x6d, 0xa2, 0x8a, 0xa2,
+	0x2b, 0x13, 0xcd, 0x3c, 0x02, 0x2a, 0x13, 0xcd, 0xf1, 0xfe, 0x06, 0xba, 0x82, 0x41, 0x9e, 0xbe,
+	0xd1, 0xc1, 0xba, 0x37, 0x65, 0xe1, 0x75, 0x60, 0x3d, 0xaa, 0xa3, 0xba, 0x74, 0x36, 0x81, 0x5e,
+	0x9a, 0x64, 0x51, 0x49, 0xd3, 0x95, 0x3c, 0x17, 0xac, 0xfd, 0x2a, 0xb5, 0x74, 0x36, 0x79, 0xd2,
+	0x2d, 0xcb, 0x66, 0x0d, 0xa3, 0x97, 0x65, 0xb3, 0x8e, 0xc3, 0xed, 0x0d, 0xf4, 0x2b, 0xdc, 0xcd,
+	0xb1, 0x15, 0x1a, 0xdf, 0x06, 0x90, 0xe6, 0x41, 0xeb, 0xa0, 0x86, 0x66, 0xe2, 0xe9, 0x53, 0x03,
+	0xcd, 0xe0, 0xad, 0x2c, 0x69, 0xa0, 0x87, 0xb7, 0x01, 0xa4, 0x18, 0xcf, 0x1a, 0x57, 0x2b, 0xa6,
+	0x1c, 0xbd, 0x82, 0x6e, 0x8a, 0x2d, 0xca, 0x86, 0x47, 0x91, 0x7f, 0xca, 0x86, 0x47, 0x19, 0xe5,
+	0x6c, 0xa0, 0x0b, 0xe8, 0x67, 0xf8, 0x03, 0xed, 0xaf, 0xb3, 0xcc, 0xb2, 0x92, 0xf5, 0xb0, 0x52,
+	0x2f, 0xdd, 0x64, 0x69, 0x5a, 0x41, 0x6b, 0x83, 0xcb, 0x0e, 0xc0, 0xfd, 0x2a, 0xb5, 0xc4, 0xc1,
+	0xc5, 0xa6, 0xfc, 0xc9, 0x7b, 0xf2, 0x4f, 0x00, 0x00, 0x00, 0xff, 0xff, 0xdb, 0x3c, 0x6d, 0xd7,
+	0xfb, 0x0d, 0x00, 0x00,
 }
diff --git a/weed/server/volume_grpc_admin.go b/weed/server/volume_grpc_admin.go
index f0b57b35a..429ca9b68 100644
--- a/weed/server/volume_grpc_admin.go
+++ b/weed/server/volume_grpc_admin.go
@@ -78,3 +78,19 @@ func (vs *VolumeServer) VolumeUnmount(ctx context.Context, req *volume_server_pb
 	return resp, err
 
 }
+
+func (vs *VolumeServer) VolumeDelete(ctx context.Context, req *volume_server_pb.VolumeDeleteRequest) (*volume_server_pb.VolumeDeleteResponse, error) {
+
+	resp := &volume_server_pb.VolumeDeleteResponse{}
+
+	err := vs.store.DeleteVolume(storage.VolumeId(req.VolumdId))
+
+	if err != nil {
+		glog.Errorf("volume delete %v: %v", req, err)
+	} else {
+		glog.V(2).Infof("volume delete %v", req)
+	}
+
+	return resp, err
+
+}
diff --git a/weed/storage/store.go b/weed/storage/store.go
index 5b6270b6b..8c0299545 100644
--- a/weed/storage/store.go
+++ b/weed/storage/store.go
@@ -254,3 +254,15 @@ func (s *Store) UnmountVolume(i VolumeId) error {
 
 	return fmt.Errorf("Volume %d not found on disk", i)
 }
+
+func (s *Store) DeleteVolume(i VolumeId) error {
+	for _, location := range s.Locations {
+		if error := location.deleteVolumeById(i); error == nil {
+			s.DeletedVolumeIdChan <- VolumeId(i)
+			return nil
+		}
+	}
+
+	return fmt.Errorf("Volume %d not found on disk", i)
+}
+