filer.copy: use filer settings, avoid unnecessary command line options

fix https://github.com/chrislusf/seaweedfs/issues/968

5 files changed, 255 insertions, 111 deletions

diff --git a/other/java/client/src/main/proto/filer.proto b/other/java/client/src/main/proto/filer.proto
index 56814c39a..d72bced12 100644
--- a/other/java/client/src/main/proto/filer.proto
+++ b/other/java/client/src/main/proto/filer.proto
@@ -39,6 +39,9 @@ service SeaweedFiler {
     rpc Statistics (StatisticsRequest) returns (StatisticsResponse) {
     }
 
+    rpc GetFilerConfiguration (GetFilerConfigurationRequest) returns (GetFilerConfigurationResponse) {
+    }
+
 }
 
 //////////////////////////////////////////////////
@@ -205,3 +208,12 @@ message StatisticsResponse {
     uint64 used_size = 5;
     uint64 file_count = 6;
 }
+
+message GetFilerConfigurationRequest {
+}
+message GetFilerConfigurationResponse {
+    repeated string masters = 1;
+    string replication = 2;
+    string collection = 3;
+    uint32 max_mb = 4;
+}
diff --git a/weed/command/filer_copy.go b/weed/command/filer_copy.go
index 8d8fead62..786e83f4b 100644
--- a/weed/command/filer_copy.go
+++ b/weed/command/filer_copy.go
@@ -29,29 +29,26 @@ var (
 )
 
 type CopyOptions struct {
-	filerGrpcPort    *int
-	master           *string
 	include          *string
 	replication      *string
 	collection       *string
 	ttl              *string
 	maxMB            *int
-	grpcDialOption   grpc.DialOption
 	masterClient     *wdclient.MasterClient
 	concurrency      *int
 	compressionLevel *int
+	grpcDialOption   grpc.DialOption
+	masters          []string
 }
 
 func init() {
 	cmdCopy.Run = runCopy // break init cycle
 	cmdCopy.IsDebug = cmdCopy.Flag.Bool("debug", false, "verbose debug information")
-	copy.master = cmdCopy.Flag.String("master", "localhost:9333", "SeaweedFS master location")
 	copy.include = cmdCopy.Flag.String("include", "", "pattens of files to copy, e.g., *.pdf, *.html, ab?d.txt, works together with -dir")
 	copy.replication = cmdCopy.Flag.String("replication", "", "replication type")
 	copy.collection = cmdCopy.Flag.String("collection", "", "optional collection name")
 	copy.ttl = cmdCopy.Flag.String("ttl", "", "time to live, e.g.: 1m, 1h, 1d, 1M, 1y")
-	copy.maxMB = cmdCopy.Flag.Int("maxMB", 32, "split files larger than the limit")
-	copy.filerGrpcPort = cmdCopy.Flag.Int("filer.port.grpc", 0, "filer grpc server listen port, default to filer port + 10000")
+	copy.maxMB = cmdCopy.Flag.Int("maxMB", 0, "split files larger than the limit")
 	copy.concurrency = cmdCopy.Flag.Int("c", 8, "concurrent file copy goroutines")
 	copy.compressionLevel = cmdCopy.Flag.Int("compressionLevel", 9, "local file compression level 1 ~ 9")
 }
@@ -105,14 +102,28 @@ func runCopy(cmd *Command, args []string) bool {
 	}
 
 	filerGrpcPort := filerPort + 10000
-	if *copy.filerGrpcPort != 0 {
-		filerGrpcPort = uint64(*copy.filerGrpcPort)
-	}
-
 	filerGrpcAddress := fmt.Sprintf("%s:%d", filerUrl.Hostname(), filerGrpcPort)
 	copy.grpcDialOption = security.LoadClientTLS(viper.Sub("grpc"), "client")
 
-	copy.masterClient = wdclient.NewMasterClient(context.Background(), copy.grpcDialOption, "client", strings.Split(*copy.master, ","))
+	ctx := context.Background()
+
+	masters, collection, replication, maxMB, err := readFilerConfiguration(ctx, copy.grpcDialOption, filerGrpcAddress)
+	if err != nil {
+		fmt.Printf("read from filer %s: %v\n", filerGrpcAddress, err)
+		return false
+	}
+	if *copy.collection == "" {
+		*copy.collection = collection
+	}
+	if *copy.replication == "" {
+		*copy.replication = replication
+	}
+	if *copy.maxMB == 0 {
+		*copy.maxMB = int(maxMB)
+	}
+	copy.masters = masters
+
+	copy.masterClient = wdclient.NewMasterClient(ctx, copy.grpcDialOption, "client", copy.masters)
 	go copy.masterClient.KeepConnectedToMaster()
 	copy.masterClient.WaitUntilConnected()
 
@@ -122,8 +133,6 @@ func runCopy(cmd *Command, args []string) bool {
 
 	fileCopyTaskChan := make(chan FileCopyTask, *copy.concurrency)
 
-	ctx := context.Background()
-
 	go func() {
 		defer close(fileCopyTaskChan)
 		for _, fileOrDir := range fileOrDirs {
@@ -153,6 +162,18 @@ func runCopy(cmd *Command, args []string) bool {
 	return true
 }
 
+func readFilerConfiguration(ctx context.Context, grpcDialOption grpc.DialOption, filerGrpcAddress string) (masters []string, collection, replication string, maxMB uint32, err error) {
+	err = withFilerClient(ctx, filerGrpcAddress, grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
+		resp, err := client.GetFilerConfiguration(ctx, &filer_pb.GetFilerConfigurationRequest{})
+		if err != nil {
+			return fmt.Errorf("get filer %s configuration: %v", filerGrpcAddress, err)
+		}
+		masters, collection, replication, maxMB = resp.Masters, resp.Collection, resp.Replication, resp.MaxMb
+		return nil
+	})
+	return
+}
+
 func genFileCopyTask(fileOrDir string, destPath string, fileCopyTaskChan chan FileCopyTask) error {
 
 	fi, err := os.Stat(fileOrDir)
@@ -262,7 +283,7 @@ func (worker *FileCopyWorker) uploadFileAsOne(ctx context.Context, task FileCopy
 			Ttl:         *worker.options.ttl,
 		})
 		if err != nil {
-			fmt.Printf("Failed to assign from %s: %v\n", *worker.options.master, err)
+			fmt.Printf("Failed to assign from %v: %v\n", worker.options.masters, err)
 		}
 
 		targetUrl := "http://" + assignResult.Url + "/" + assignResult.Fid
@@ -336,7 +357,7 @@ func (worker *FileCopyWorker) uploadFileInChunks(ctx context.Context, task FileC
 			Ttl:         *worker.options.ttl,
 		})
 		if err != nil {
-			fmt.Printf("Failed to assign from %s: %v\n", *worker.options.master, err)
+			fmt.Printf("Failed to assign from %v: %v\n", worker.options.masters, err)
 		}
 
 		targetUrl := "http://" + assignResult.Url + "/" + assignResult.Fid
diff --git a/weed/pb/filer.proto b/weed/pb/filer.proto
index 56814c39a..d72bced12 100644
--- a/weed/pb/filer.proto
+++ b/weed/pb/filer.proto
@@ -39,6 +39,9 @@ service SeaweedFiler {
     rpc Statistics (StatisticsRequest) returns (StatisticsResponse) {
     }
 
+    rpc GetFilerConfiguration (GetFilerConfigurationRequest) returns (GetFilerConfigurationResponse) {
+    }
+
 }
 
 //////////////////////////////////////////////////
@@ -205,3 +208,12 @@ message StatisticsResponse {
     uint64 used_size = 5;
     uint64 file_count = 6;
 }
+
+message GetFilerConfigurationRequest {
+}
+message GetFilerConfigurationResponse {
+    repeated string masters = 1;
+    string replication = 2;
+    string collection = 3;
+    uint32 max_mb = 4;
+}
diff --git a/weed/pb/filer_pb/filer.pb.go b/weed/pb/filer_pb/filer.pb.go
index 3d39af65c..1a35ad7c0 100644
--- a/weed/pb/filer_pb/filer.pb.go
+++ b/weed/pb/filer_pb/filer.pb.go
@@ -37,6 +37,8 @@ It has these top-level messages:
 	DeleteCollectionResponse
 	StatisticsRequest
 	StatisticsResponse
+	GetFilerConfigurationRequest
+	GetFilerConfigurationResponse
 */
 package filer_pb
 
@@ -933,6 +935,54 @@ func (m *StatisticsResponse) GetFileCount() uint64 {
 	return 0
 }
 
+type GetFilerConfigurationRequest struct {
+}
+
+func (m *GetFilerConfigurationRequest) Reset()                    { *m = GetFilerConfigurationRequest{} }
+func (m *GetFilerConfigurationRequest) String() string            { return proto.CompactTextString(m) }
+func (*GetFilerConfigurationRequest) ProtoMessage()               {}
+func (*GetFilerConfigurationRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{28} }
+
+type GetFilerConfigurationResponse struct {
+	Masters     []string `protobuf:"bytes,1,rep,name=masters" json:"masters,omitempty"`
+	Replication string   `protobuf:"bytes,2,opt,name=replication" json:"replication,omitempty"`
+	Collection  string   `protobuf:"bytes,3,opt,name=collection" json:"collection,omitempty"`
+	MaxMb       uint32   `protobuf:"varint,4,opt,name=max_mb,json=maxMb" json:"max_mb,omitempty"`
+}
+
+func (m *GetFilerConfigurationResponse) Reset()                    { *m = GetFilerConfigurationResponse{} }
+func (m *GetFilerConfigurationResponse) String() string            { return proto.CompactTextString(m) }
+func (*GetFilerConfigurationResponse) ProtoMessage()               {}
+func (*GetFilerConfigurationResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{29} }
+
+func (m *GetFilerConfigurationResponse) GetMasters() []string {
+	if m != nil {
+		return m.Masters
+	}
+	return nil
+}
+
+func (m *GetFilerConfigurationResponse) GetReplication() string {
+	if m != nil {
+		return m.Replication
+	}
+	return ""
+}
+
+func (m *GetFilerConfigurationResponse) GetCollection() string {
+	if m != nil {
+		return m.Collection
+	}
+	return ""
+}
+
+func (m *GetFilerConfigurationResponse) GetMaxMb() uint32 {
+	if m != nil {
+		return m.MaxMb
+	}
+	return 0
+}
+
 func init() {
 	proto.RegisterType((*LookupDirectoryEntryRequest)(nil), "filer_pb.LookupDirectoryEntryRequest")
 	proto.RegisterType((*LookupDirectoryEntryResponse)(nil), "filer_pb.LookupDirectoryEntryResponse")
@@ -962,6 +1012,8 @@ func init() {
 	proto.RegisterType((*DeleteCollectionResponse)(nil), "filer_pb.DeleteCollectionResponse")
 	proto.RegisterType((*StatisticsRequest)(nil), "filer_pb.StatisticsRequest")
 	proto.RegisterType((*StatisticsResponse)(nil), "filer_pb.StatisticsResponse")
+	proto.RegisterType((*GetFilerConfigurationRequest)(nil), "filer_pb.GetFilerConfigurationRequest")
+	proto.RegisterType((*GetFilerConfigurationResponse)(nil), "filer_pb.GetFilerConfigurationResponse")
 }
 
 // Reference imports to suppress errors if they are not otherwise used.
@@ -985,6 +1037,7 @@ type SeaweedFilerClient interface {
 	LookupVolume(ctx context.Context, in *LookupVolumeRequest, opts ...grpc.CallOption) (*LookupVolumeResponse, error)
 	DeleteCollection(ctx context.Context, in *DeleteCollectionRequest, opts ...grpc.CallOption) (*DeleteCollectionResponse, error)
 	Statistics(ctx context.Context, in *StatisticsRequest, opts ...grpc.CallOption) (*StatisticsResponse, error)
+	GetFilerConfiguration(ctx context.Context, in *GetFilerConfigurationRequest, opts ...grpc.CallOption) (*GetFilerConfigurationResponse, error)
 }
 
 type seaweedFilerClient struct {
@@ -1085,6 +1138,15 @@ func (c *seaweedFilerClient) Statistics(ctx context.Context, in *StatisticsReque
 	return out, nil
 }
 
+func (c *seaweedFilerClient) GetFilerConfiguration(ctx context.Context, in *GetFilerConfigurationRequest, opts ...grpc.CallOption) (*GetFilerConfigurationResponse, error) {
+	out := new(GetFilerConfigurationResponse)
+	err := grpc.Invoke(ctx, "/filer_pb.SeaweedFiler/GetFilerConfiguration", in, out, c.cc, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 // Server API for SeaweedFiler service
 
 type SeaweedFilerServer interface {
@@ -1098,6 +1160,7 @@ type SeaweedFilerServer interface {
 	LookupVolume(context.Context, *LookupVolumeRequest) (*LookupVolumeResponse, error)
 	DeleteCollection(context.Context, *DeleteCollectionRequest) (*DeleteCollectionResponse, error)
 	Statistics(context.Context, *StatisticsRequest) (*StatisticsResponse, error)
+	GetFilerConfiguration(context.Context, *GetFilerConfigurationRequest) (*GetFilerConfigurationResponse, error)
 }
 
 func RegisterSeaweedFilerServer(s *grpc.Server, srv SeaweedFilerServer) {
@@ -1284,6 +1347,24 @@ func _SeaweedFiler_Statistics_Handler(srv interface{}, ctx context.Context, dec
 	return interceptor(ctx, in, info, handler)
 }
 
+func _SeaweedFiler_GetFilerConfiguration_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(GetFilerConfigurationRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(SeaweedFilerServer).GetFilerConfiguration(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/filer_pb.SeaweedFiler/GetFilerConfiguration",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(SeaweedFilerServer).GetFilerConfiguration(ctx, req.(*GetFilerConfigurationRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
 var _SeaweedFiler_serviceDesc = grpc.ServiceDesc{
 	ServiceName: "filer_pb.SeaweedFiler",
 	HandlerType: (*SeaweedFilerServer)(nil),
@@ -1328,6 +1409,10 @@ var _SeaweedFiler_serviceDesc = grpc.ServiceDesc{
 			MethodName: "Statistics",
 			Handler:    _SeaweedFiler_Statistics_Handler,
 		},
+		{
+			MethodName: "GetFilerConfiguration",
+			Handler:    _SeaweedFiler_GetFilerConfiguration_Handler,
+		},
 	},
 	Streams:  []grpc.StreamDesc{},
 	Metadata: "filer.proto",
@@ -1336,100 +1421,104 @@ var _SeaweedFiler_serviceDesc = grpc.ServiceDesc{
 func init() { proto.RegisterFile("filer.proto", fileDescriptor0) }
 
 var fileDescriptor0 = []byte{
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+	0xe0, 0xef, 0x00, 0x00, 0x00, 0xff, 0xff, 0x2d, 0xec, 0xb0, 0x56, 0xbc, 0x11, 0x00, 0x00,
 }
diff --git a/weed/server/filer_grpc_server.go b/weed/server/filer_grpc_server.go
index f8bb9cf07..8eea2441e 100644
--- a/weed/server/filer_grpc_server.go
+++ b/weed/server/filer_grpc_server.go
@@ -266,3 +266,13 @@ func (fs *FilerServer) Statistics(ctx context.Context, req *filer_pb.StatisticsR
 		FileCount: output.FileCount,
 	}, nil
 }
+
+func (fs *FilerServer) GetFilerConfiguration(ctx context.Context, req *filer_pb.GetFilerConfigurationRequest) (resp *filer_pb.GetFilerConfigurationResponse, err error) {
+
+	return &filer_pb.GetFilerConfigurationResponse{
+		Masters:     fs.option.Masters,
+		Collection:  fs.option.Collection,
+		Replication: fs.option.DefaultReplication,
+		MaxMb:       uint32(fs.option.MaxMB),
+	}, nil
+}