Merge branch 'master' into bptree

weed/Makefile

@@ -38,10 +38,14 @@ debug_filer_copy:
 	go build -gcflags="all=-N -l"
 	dlv --listen=:2345 --headless=true --api-version=2 --accept-multiclient exec weed -- -v=4 filer.backup -filer=localhost:8888 -filerProxy -timeAgo=10h
 
-debug_filer_remote_sync:
+debug_filer_remote_sync_dir:
 	go build -gcflags="all=-N -l"
 	dlv --listen=:2345 --headless=true --api-version=2 --accept-multiclient exec weed -- -v=4 filer.remote.sync -filer="localhost:8888" -dir=/buckets/b2 -timeAgo=1h
 
+debug_filer_remote_sync_buckets:
+	go build -gcflags="all=-N -l"
+	dlv --listen=:2345 --headless=true --api-version=2 --accept-multiclient exec weed -- -v=4 filer.remote.sync -filer="localhost:8888" -createBucketAt=cloud1 -timeAgo=1h
+
 debug_master_follower:
 	go build -gcflags="all=-N -l"
 	dlv --listen=:2345 --headless=true --api-version=2 --accept-multiclient exec weed -- -v=4 master.follower

weed/command/backup.go

@@ -2,6 +2,7 @@ package command
 
 import (
 	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/pb"
 
 	"github.com/chrislusf/seaweedfs/weed/security"
 	"github.com/chrislusf/seaweedfs/weed/storage/needle"
@@ -72,12 +73,12 @@ func runBackup(cmd *Command, args []string) bool {
 	vid := needle.VolumeId(*s.volumeId)
 
 	// find volume location, replication, ttl info
-	lookup, err := operation.LookupVolumeId(func() string { return *s.master }, grpcDialOption, vid.String())
+	lookup, err := operation.LookupVolumeId(func() pb.ServerAddress { return pb.ServerAddress(*s.master) }, grpcDialOption, vid.String())
 	if err != nil {
 		fmt.Printf("Error looking up volume %d: %v\n", vid, err)
 		return true
 	}
-	volumeServer := lookup.Locations[0].Url
+	volumeServer := lookup.Locations[0].ServerAddress()
 
 	stats, err := operation.GetVolumeSyncStatus(volumeServer, grpcDialOption, uint32(vid))
 	if err != nil {

weed/command/benchmark.go

@@ -3,6 +3,7 @@ package command
 import (
 	"bufio"
 	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/pb"
 	"io"
 	"math"
 	"math/rand"
@@ -10,7 +11,6 @@ import (
 	"runtime"
 	"runtime/pprof"
 	"sort"
-	"strings"
 	"sync"
 	"time"
 
@@ -129,7 +129,7 @@ func runBenchmark(cmd *Command, args []string) bool {
 		defer pprof.StopCPUProfile()
 	}
 
-	b.masterClient = wdclient.NewMasterClient(b.grpcDialOption, "client", "", 0, "", strings.Split(*b.masters, ","))
+	b.masterClient = wdclient.NewMasterClient(b.grpcDialOption, "client", "", "", pb.ServerAddresses(*b.masters).ToAddresses())
 	go b.masterClient.KeepConnectedToMaster()
 	b.masterClient.WaitUntilConnected()
 

weed/command/command.go

@@ -21,6 +21,7 @@ var Commands = []*Command{
 	cmdFilerCopy,
 	cmdFilerMetaBackup,
 	cmdFilerMetaTail,
+	cmdFilerRemoteGateway,
 	cmdFilerRemoteSynchronize,
 	cmdFilerReplicate,
 	cmdFilerSynchronize,

weed/command/download.go

@@ -2,6 +2,7 @@ package command
 
 import (
 	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/pb"
 	"github.com/chrislusf/seaweedfs/weed/security"
 	"google.golang.org/grpc"
 	"io"
@@ -49,7 +50,7 @@ func runDownload(cmd *Command, args []string) bool {
 	grpcDialOption := security.LoadClientTLS(util.GetViper(), "grpc.client")
 
 	for _, fid := range args {
-		if e := downloadToFile(func() string { return *d.server }, grpcDialOption, fid, util.ResolvePath(*d.dir)); e != nil {
+		if e := downloadToFile(func() pb.ServerAddress { return pb.ServerAddress(*d.server) }, grpcDialOption, fid, util.ResolvePath(*d.dir)); e != nil {
 			fmt.Println("Download Error: ", fid, e)
 		}
 	}

weed/command/filer.go

@@ -4,7 +4,6 @@ import (
 	"fmt"
 	"net/http"
 	"os"
-	"strconv"
 	"strings"
 	"time"
 
@@ -30,10 +29,12 @@ var (
 )
 
 type FilerOptions struct {
-	masters                 *string
+	masters                 []pb.ServerAddress
+	mastersString           *string
 	ip                      *string
 	bindIp                  *string
 	port                    *int
+	portGrpc                *int
 	publicPort              *int
 	collection              *string
 	defaultReplicaPlacement *string
@@ -56,11 +57,12 @@ type FilerOptions struct {
 
 func init() {
 	cmdFiler.Run = runFiler // break init cycle
-	f.masters = cmdFiler.Flag.String("master", "localhost:9333", "comma-separated master servers")
+	f.mastersString = cmdFiler.Flag.String("master", "localhost:9333", "comma-separated master servers")
 	f.collection = cmdFiler.Flag.String("collection", "", "all data will be stored in this default collection")
 	f.ip = cmdFiler.Flag.String("ip", util.DetectedHostAddress(), "filer server http listen ip address")
 	f.bindIp = cmdFiler.Flag.String("ip.bind", "", "ip address to bind to")
 	f.port = cmdFiler.Flag.Int("port", 8888, "filer server http listen port")
+	f.portGrpc = cmdFiler.Flag.Int("port.grpc", 18888, "filer server grpc listen port")
 	f.publicPort = cmdFiler.Flag.Int("port.readonly", 0, "readonly port opened to public")
 	f.defaultReplicaPlacement = cmdFiler.Flag.String("defaultReplicaPlacement", "", "default replication type. If not specified, use master setting.")
 	f.disableDirListing = cmdFiler.Flag.Bool("disableDirListing", false, "turn off directory listing")
@@ -134,7 +136,7 @@ func runFiler(cmd *Command, args []string) bool {
 
 	go stats_collect.StartMetricsServer(*f.metricsHttpPort)
 
-	filerAddress := fmt.Sprintf("%s:%d", *f.ip, *f.port)
+	filerAddress := util.JoinHostPort(*f.ip, *f.port)
 	startDelay := time.Duration(2)
 	if *filerStartS3 {
 		filerS3Options.filer = &filerAddress
@@ -156,13 +158,15 @@ func runFiler(cmd *Command, args []string) bool {
 
 	if *filerStartIam {
 		filerIamOptions.filer = &filerAddress
-		filerIamOptions.masters = f.masters
+		filerIamOptions.masters = f.mastersString
 		go func() {
 			time.Sleep(startDelay * time.Second)
 			filerIamOptions.startIamServer()
 		}()
 	}
 
+	f.masters = pb.ServerAddresses(*f.mastersString).ToAddresses()
+
 	f.startFiler()
 
 	return true
@@ -184,8 +188,10 @@ func (fo *FilerOptions) startFiler() {
 		peers = strings.Split(*fo.peers, ",")
 	}
 
+	filerAddress := pb.NewServerAddress(*fo.ip, *fo.port, *fo.portGrpc)
+
 	fs, nfs_err := weed_server.NewFilerServer(defaultMux, publicVolumeMux, &weed_server.FilerOption{
-		Masters:               strings.Split(*fo.masters, ","),
+		Masters:               fo.masters,
 		Collection:            *fo.collection,
 		DefaultReplication:    *fo.defaultReplicaPlacement,
 		DisableDirListing:     *fo.disableDirListing,
@@ -195,11 +201,10 @@ func (fo *FilerOptions) startFiler() {
 		Rack:                  *fo.rack,
 		DefaultLevelDbDir:     defaultLevelDbDirectory,
 		DisableHttp:           *fo.disableHttp,
-		Host:                  *fo.ip,
-		Port:                  uint32(*fo.port),
+		Host:                  filerAddress,
 		Cipher:                *fo.cipher,
 		SaveToFilerLimit:      int64(*fo.saveToFilerLimit),
-		Filers:                peers,
+		Filers:                pb.FromAddressStrings(peers),
 		ConcurrentUploadLimit: int64(*fo.concurrentUploadLimitMB) * 1024 * 1024,
 	})
 	if nfs_err != nil {
@@ -207,7 +212,7 @@ func (fo *FilerOptions) startFiler() {
 	}
 
 	if *fo.publicPort != 0 {
-		publicListeningAddress := *fo.bindIp + ":" + strconv.Itoa(*fo.publicPort)
+		publicListeningAddress := util.JoinHostPort(*fo.bindIp, *fo.publicPort)
 		glog.V(0).Infoln("Start Seaweed filer server", util.Version(), "public at", publicListeningAddress)
 		publicListener, e := util.NewListener(publicListeningAddress, 0)
 		if e != nil {
@@ -222,7 +227,7 @@ func (fo *FilerOptions) startFiler() {
 
 	glog.V(0).Infof("Start Seaweed Filer %s at %s:%d", util.Version(), *fo.ip, *fo.port)
 	filerListener, e := util.NewListener(
-		*fo.bindIp+":"+strconv.Itoa(*fo.port),
+		util.JoinHostPort(*fo.bindIp, *fo.port),
 		time.Duration(10)*time.Second,
 	)
 	if e != nil {
@@ -230,8 +235,8 @@ func (fo *FilerOptions) startFiler() {
 	}
 
 	// starting grpc server
-	grpcPort := *fo.port + 10000
-	grpcL, err := util.NewListener(*fo.bindIp+":"+strconv.Itoa(grpcPort), 0)
+	grpcPort := *fo.portGrpc
+	grpcL, err := util.NewListener(util.JoinHostPort(*fo.bindIp, grpcPort), 0)
 	if err != nil {
 		glog.Fatalf("failed to listen on grpc port %d: %v", grpcPort, err)
 	}

weed/command/filer_backup.go

@@ -78,7 +78,7 @@ func doFilerBackup(grpcDialOption grpc.DialOption, backupOption *FilerBackupOpti
 		return fmt.Errorf("no data sink configured in replication.toml")
 	}
 
-	sourceFiler := *backupOption.filer
+	sourceFiler := pb.ServerAddress(*backupOption.filer)
 	sourcePath := *backupOption.path
 	timeAgo := *backupOption.timeAgo
 	targetPath := dataSink.GetSinkToDirectory()
@@ -102,7 +102,7 @@ func doFilerBackup(grpcDialOption grpc.DialOption, backupOption *FilerBackupOpti
 
 	// create filer sink
 	filerSource := &source.FilerSource{}
-	filerSource.DoInitialize(sourceFiler, pb.ServerToGrpcAddress(sourceFiler), sourcePath, *backupOption.proxyByFiler)
+	filerSource.DoInitialize(sourceFiler.ToHttpAddress(), sourceFiler.ToGrpcAddress(), sourcePath, *backupOption.proxyByFiler)
 	dataSink.SetSourceFiler(filerSource)
 
 	processEventFn := genProcessFunction(sourcePath, targetPath, dataSink, debug)
@@ -113,6 +113,6 @@ func doFilerBackup(grpcDialOption grpc.DialOption, backupOption *FilerBackupOpti
 	})
 
 	return pb.FollowMetadata(sourceFiler, grpcDialOption, "backup_"+dataSink.GetName(),
-		sourcePath, startFrom.UnixNano(), 0, processEventFnWithOffset, false)
+		sourcePath, nil, startFrom.UnixNano(), 0, processEventFnWithOffset, false)
 
 }

weed/command/filer_cat.go

@@ -23,7 +23,7 @@ var (
 
 type FilerCatOptions struct {
 	grpcDialOption grpc.DialOption
-	filerAddress   string
+	filerAddress   pb.ServerAddress
 	filerClient    filer_pb.SeaweedFilerClient
 	output         *string
 }
@@ -78,7 +78,7 @@ func runFilerCat(cmd *Command, args []string) bool {
 		return false
 	}
 
-	filerCat.filerAddress = filerUrl.Host
+	filerCat.filerAddress = pb.ServerAddress(filerUrl.Host)
 	filerCat.grpcDialOption = security.LoadClientTLS(util.GetViper(), "grpc.client")
 
 	dir, name := util.FullPath(urlPath).DirAndName()
@@ -108,6 +108,11 @@ func runFilerCat(cmd *Command, args []string) bool {
 			return err
 		}
 
+		if len(respLookupEntry.Entry.Content) > 0 {
+			_, err = writer.Write(respLookupEntry.Entry.Content)
+			return err
+		}
+
 		filerCat.filerClient = client
 
 		return filer.StreamContent(&filerCat, writer, respLookupEntry.Entry.Chunks, 0, math.MaxInt64)

weed/command/filer_copy.go

@@ -7,7 +7,6 @@ import (
 	"io"
 	"io/ioutil"
 	"net/http"
-	"net/url"
 	"os"
 	"path/filepath"
 	"strconv"
@@ -92,35 +91,21 @@ func runCopy(cmd *Command, args []string) bool {
 	filerDestination := args[len(args)-1]
 	fileOrDirs := args[0 : len(args)-1]
 
-	filerUrl, err := url.Parse(filerDestination)
+	filerAddress, urlPath, err := pb.ParseUrl(filerDestination)
 	if err != nil {
 		fmt.Printf("The last argument should be a URL on filer: %v\n", err)
 		return false
 	}
-	urlPath := filerUrl.Path
 	if !strings.HasSuffix(urlPath, "/") {
 		fmt.Printf("The last argument should be a folder and end with \"/\"\n")
 		return false
 	}
 
-	if filerUrl.Port() == "" {
-		fmt.Printf("The filer port should be specified.\n")
-		return false
-	}
-
-	filerPort, parseErr := strconv.ParseUint(filerUrl.Port(), 10, 64)
-	if parseErr != nil {
-		fmt.Printf("The filer port parse error: %v\n", parseErr)
-		return false
-	}
-
-	filerGrpcPort := filerPort + 10000
-	filerGrpcAddress := fmt.Sprintf("%s:%d", filerUrl.Hostname(), filerGrpcPort)
 	copy.grpcDialOption = security.LoadClientTLS(util.GetViper(), "grpc.client")
 
-	masters, collection, replication, dirBuckets, maxMB, cipher, err := readFilerConfiguration(copy.grpcDialOption, filerGrpcAddress)
+	masters, collection, replication, dirBuckets, maxMB, cipher, err := readFilerConfiguration(copy.grpcDialOption, filerAddress)
 	if err != nil {
-		fmt.Printf("read from filer %s: %v\n", filerGrpcAddress, err)
+		fmt.Printf("read from filer %s: %v\n", filerAddress, err)
 		return false
 	}
 	if strings.HasPrefix(urlPath, dirBuckets+"/") {
@@ -174,9 +159,8 @@ func runCopy(cmd *Command, args []string) bool {
 		go func() {
 			defer waitGroup.Done()
 			worker := FileCopyWorker{
-				options:          &copy,
-				filerHost:        filerUrl.Host,
-				filerGrpcAddress: filerGrpcAddress,
+				options:      &copy,
+				filerAddress: filerAddress,
 			}
 			if err := worker.copyFiles(fileCopyTaskChan); err != nil {
 				fmt.Fprintf(os.Stderr, "copy file error: %v\n", err)
@@ -189,7 +173,7 @@ func runCopy(cmd *Command, args []string) bool {
 	return true
 }
 
-func readFilerConfiguration(grpcDialOption grpc.DialOption, filerGrpcAddress string) (masters []string, collection, replication string, dirBuckets string, maxMB uint32, cipher bool, err error) {
+func readFilerConfiguration(grpcDialOption grpc.DialOption, filerGrpcAddress pb.ServerAddress) (masters []string, collection, replication string, dirBuckets string, maxMB uint32, cipher bool, err error) {
 	err = pb.WithGrpcFilerClient(filerGrpcAddress, grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
 		resp, err := client.GetFilerConfiguration(context.Background(), &filer_pb.GetFilerConfigurationRequest{})
 		if err != nil {
@@ -241,9 +225,8 @@ func genFileCopyTask(fileOrDir string, destPath string, fileCopyTaskChan chan Fi
 }
 
 type FileCopyWorker struct {
-	options          *CopyOptions
-	filerHost        string
-	filerGrpcAddress string
+	options      *CopyOptions
+	filerAddress pb.ServerAddress
 }
 
 func (worker *FileCopyWorker) copyFiles(fileCopyTaskChan chan FileCopyTask) error {
@@ -321,7 +304,7 @@ func (worker *FileCopyWorker) checkExistingFileFirst(task FileCopyTask, f *os.Fi
 		return
 	}
 
-	err = pb.WithGrpcFilerClient(worker.filerGrpcAddress, worker.options.grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
+	err = pb.WithGrpcFilerClient(worker.filerAddress, worker.options.grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
 
 		request := &filer_pb.LookupDirectoryEntryRequest{
 			Directory: task.destinationUrlPath,
@@ -363,7 +346,7 @@ func (worker *FileCopyWorker) uploadFileAsOne(task FileCopyTask, f *os.File) err
 
 		// assign a volume
 		err = util.Retry("assignVolume", func() error {
-			return pb.WithGrpcFilerClient(worker.filerGrpcAddress, worker.options.grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
+			return pb.WithGrpcFilerClient(worker.filerAddress, worker.options.grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
 
 				request := &filer_pb.AssignVolumeRequest{
 					Count:       1,
@@ -381,7 +364,7 @@ func (worker *FileCopyWorker) uploadFileAsOne(task FileCopyTask, f *os.File) err
 				if assignResult.Error != "" {
 					return fmt.Errorf("assign volume failure %v: %v", request, assignResult.Error)
 				}
-				if assignResult.Url == "" {
+				if assignResult.Location.Url == "" {
 					return fmt.Errorf("assign volume failure %v: %v", request, assignResult)
 				}
 				return nil
@@ -391,9 +374,17 @@ func (worker *FileCopyWorker) uploadFileAsOne(task FileCopyTask, f *os.File) err
 			return fmt.Errorf("Failed to assign from %v: %v\n", worker.options.masters, err)
 		}
 
-		targetUrl := "http://" + assignResult.Url + "/" + assignResult.FileId
-
-		uploadResult, err := operation.UploadData(targetUrl, fileName, worker.options.cipher, data, false, mimeType, nil, security.EncodedJwt(assignResult.Auth))
+		targetUrl := "http://" + assignResult.Location.Url + "/" + assignResult.FileId
+		uploadOption := &operation.UploadOption{
+			UploadUrl:         targetUrl,
+			Filename:          fileName,
+			Cipher:            worker.options.cipher,
+			IsInputCompressed: false,
+			MimeType:          mimeType,
+			PairMap:           nil,
+			Jwt:               security.EncodedJwt(assignResult.Auth),
+		}
+		uploadResult, err := operation.UploadData(data, uploadOption)
 		if err != nil {
 			return fmt.Errorf("upload data %v to %s: %v\n", fileName, targetUrl, err)
 		}
@@ -406,10 +397,10 @@ func (worker *FileCopyWorker) uploadFileAsOne(task FileCopyTask, f *os.File) err
 
 		chunks = append(chunks, uploadResult.ToPbFileChunk(assignResult.FileId, 0))
 
-		fmt.Printf("copied %s => http://%s%s%s\n", f.Name(), worker.filerHost, task.destinationUrlPath, fileName)
+		fmt.Printf("copied %s => http://%s%s%s\n", f.Name(), worker.filerAddress.ToHttpAddress(), task.destinationUrlPath, fileName)
 	}
 
-	if err := pb.WithGrpcFilerClient(worker.filerGrpcAddress, worker.options.grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
+	if err := pb.WithGrpcFilerClient(worker.filerAddress, worker.options.grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
 		request := &filer_pb.CreateEntryRequest{
 			Directory: task.destinationUrlPath,
 			Entry: &filer_pb.Entry{
@@ -435,7 +426,7 @@ func (worker *FileCopyWorker) uploadFileAsOne(task FileCopyTask, f *os.File) err
 		}
 		return nil
 	}); err != nil {
-		return fmt.Errorf("upload data %v to http://%s%s%s: %v\n", fileName, worker.filerHost, task.destinationUrlPath, fileName, err)
+		return fmt.Errorf("upload data %v to http://%s%s%s: %v\n", fileName, worker.filerAddress.ToHttpAddress(), task.destinationUrlPath, fileName, err)
 	}
 
 	return nil
@@ -466,7 +457,7 @@ func (worker *FileCopyWorker) uploadFileInChunks(task FileCopyTask, f *os.File,
 			var assignResult *filer_pb.AssignVolumeResponse
 			var assignError error
 			err := util.Retry("assignVolume", func() error {
-				return pb.WithGrpcFilerClient(worker.filerGrpcAddress, worker.options.grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
+				return pb.WithGrpcFilerClient(worker.filerAddress, worker.options.grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
 					request := &filer_pb.AssignVolumeRequest{
 						Count:       1,
 						Replication: *worker.options.replication,
@@ -490,7 +481,7 @@ func (worker *FileCopyWorker) uploadFileInChunks(task FileCopyTask, f *os.File,
 				fmt.Printf("Failed to assign from %v: %v\n", worker.options.masters, err)
 			}
 
-			targetUrl := "http://" + assignResult.Url + "/" + assignResult.FileId
+			targetUrl := "http://" + assignResult.Location.Url + "/" + assignResult.FileId
 			if collection == "" {
 				collection = assignResult.Collection
 			}
@@ -498,7 +489,16 @@ func (worker *FileCopyWorker) uploadFileInChunks(task FileCopyTask, f *os.File,
 				replication = assignResult.Replication
 			}
 
-			uploadResult, err, _ := operation.Upload(targetUrl, fileName+"-"+strconv.FormatInt(i+1, 10), worker.options.cipher, io.NewSectionReader(f, i*chunkSize, chunkSize), false, "", nil, security.EncodedJwt(assignResult.Auth))
+			uploadOption := &operation.UploadOption{
+				UploadUrl:         targetUrl,
+				Filename:          fileName + "-" + strconv.FormatInt(i+1, 10),
+				Cipher:            worker.options.cipher,
+				IsInputCompressed: false,
+				MimeType:          "",
+				PairMap:           nil,
+				Jwt:               security.EncodedJwt(assignResult.Auth),
+			}
+			uploadResult, err, _ := operation.Upload(io.NewSectionReader(f, i*chunkSize, chunkSize), uploadOption)
 			if err != nil {
 				uploadError = fmt.Errorf("upload data %v to %s: %v\n", fileName, targetUrl, err)
 				return
@@ -525,8 +525,8 @@ func (worker *FileCopyWorker) uploadFileInChunks(task FileCopyTask, f *os.File,
 		for _, chunk := range chunks {
 			fileIds = append(fileIds, chunk.FileId)
 		}
-		operation.DeleteFiles(func() string {
-			return copy.masters[0]
+		operation.DeleteFiles(func() pb.ServerAddress {
+			return pb.ServerAddress(copy.masters[0])
 		}, false, worker.options.grpcDialOption, fileIds)
 		return uploadError
 	}
@@ -536,7 +536,7 @@ func (worker *FileCopyWorker) uploadFileInChunks(task FileCopyTask, f *os.File,
 		return fmt.Errorf("create manifest: %v", manifestErr)
 	}
 
-	if err := pb.WithGrpcFilerClient(worker.filerGrpcAddress, worker.options.grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
+	if err := pb.WithGrpcFilerClient(worker.filerAddress, worker.options.grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
 		request := &filer_pb.CreateEntryRequest{
 			Directory: task.destinationUrlPath,
 			Entry: &filer_pb.Entry{
@@ -562,10 +562,10 @@ func (worker *FileCopyWorker) uploadFileInChunks(task FileCopyTask, f *os.File,
 		}
 		return nil
 	}); err != nil {
-		return fmt.Errorf("upload data %v to http://%s%s%s: %v\n", fileName, worker.filerHost, task.destinationUrlPath, fileName, err)
+		return fmt.Errorf("upload data %v to http://%s%s%s: %v\n", fileName, worker.filerAddress.ToHttpAddress(), task.destinationUrlPath, fileName, err)
 	}
 
-	fmt.Printf("copied %s => http://%s%s%s\n", f.Name(), worker.filerHost, task.destinationUrlPath, fileName)
+	fmt.Printf("copied %s => http://%s%s%s\n", f.Name(), worker.filerAddress.ToHttpAddress(), task.destinationUrlPath, fileName)
 
 	return nil
 }
@@ -594,7 +594,7 @@ func (worker *FileCopyWorker) saveDataAsChunk(reader io.Reader, name string, off
 	var fileId, host string
 	var auth security.EncodedJwt
 
-	if flushErr := pb.WithGrpcFilerClient(worker.filerGrpcAddress, worker.options.grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
+	if flushErr := pb.WithGrpcFilerClient(worker.filerAddress, worker.options.grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
 
 		ctx := context.Background()
 
@@ -616,7 +616,7 @@ func (worker *FileCopyWorker) saveDataAsChunk(reader io.Reader, name string, off
 				return fmt.Errorf("assign volume failure %v: %v", request, resp.Error)
 			}
 
-			fileId, host, auth = resp.FileId, resp.Url, security.EncodedJwt(resp.Auth)
+			fileId, host, auth = resp.FileId, resp.Location.Url, security.EncodedJwt(resp.Auth)
 			collection, replication = resp.Collection, resp.Replication
 
 			return nil
@@ -630,8 +630,16 @@ func (worker *FileCopyWorker) saveDataAsChunk(reader io.Reader, name string, off
 		return nil, collection, replication, fmt.Errorf("filerGrpcAddress assign volume: %v", flushErr)
 	}
 
-	fileUrl := fmt.Sprintf("http://%s/%s", host, fileId)
-	uploadResult, flushErr, _ := operation.Upload(fileUrl, name, worker.options.cipher, reader, false, "", nil, auth)
+	uploadOption := &operation.UploadOption{
+		UploadUrl:         fmt.Sprintf("http://%s/%s", host, fileId),
+		Filename:          name,
+		Cipher:            worker.options.cipher,
+		IsInputCompressed: false,
+		MimeType:          "",
+		PairMap:           nil,
+		Jwt:               auth,
+	}
+	uploadResult, flushErr, _ := operation.Upload(reader, uploadOption)
 	if flushErr != nil {
 		return nil, collection, replication, fmt.Errorf("upload data: %v", flushErr)
 	}

weed/command/filer_meta_backup.go

@@ -195,8 +195,8 @@ func (metaBackup *FilerMetaBackupOptions) streamMetadataBackup() error {
 		return metaBackup.setOffset(lastTime)
 	})
 
-	return pb.FollowMetadata(*metaBackup.filerAddress, metaBackup.grpcDialOption, "meta_backup",
-		*metaBackup.filerDirectory, startTime.UnixNano(), 0, processEventFnWithOffset, false)
+	return pb.FollowMetadata(pb.ServerAddress(*metaBackup.filerAddress), metaBackup.grpcDialOption, "meta_backup",
+		*metaBackup.filerDirectory, nil, startTime.UnixNano(), 0, processEventFnWithOffset, false)
 
 }
 
@@ -224,7 +224,7 @@ var _ = filer_pb.FilerClient(&FilerMetaBackupOptions{})
 
 func (metaBackup *FilerMetaBackupOptions) WithFilerClient(fn func(filer_pb.SeaweedFilerClient) error) error {
 
-	return pb.WithFilerClient(*metaBackup.filerAddress, metaBackup.grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
+	return pb.WithFilerClient(pb.ServerAddress(*metaBackup.filerAddress), metaBackup.grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
 		return fn(client)
 	})
 

weed/command/filer_meta_tail.go

@@ -103,8 +103,8 @@ func runFilerMetaTail(cmd *Command, args []string) bool {
 		}
 	}
 
-	tailErr := pb.FollowMetadata(*tailFiler, grpcDialOption, "tail",
-		*tailTarget, time.Now().Add(-*tailStart).UnixNano(), 0,
+	tailErr := pb.FollowMetadata(pb.ServerAddress(*tailFiler), grpcDialOption, "tail",
+		*tailTarget, nil, time.Now().Add(-*tailStart).UnixNano(), 0,
 		func(resp *filer_pb.SubscribeMetadataResponse) error {
 			if !shouldPrint(resp) {
 				return nil

weed/command/filer_remote_gateway.go

@@ -0,0 +1,117 @@
+package command
+
+import (
+	"context"
+	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/glog"
+	"github.com/chrislusf/seaweedfs/weed/pb"
+	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
+	"github.com/chrislusf/seaweedfs/weed/pb/remote_pb"
+	"github.com/chrislusf/seaweedfs/weed/replication/source"
+	"github.com/chrislusf/seaweedfs/weed/security"
+	"github.com/chrislusf/seaweedfs/weed/util"
+	"google.golang.org/grpc"
+	"os"
+	"time"
+)
+
+type RemoteGatewayOptions struct {
+	filerAddress             *string
+	grpcDialOption           grpc.DialOption
+	readChunkFromFiler       *bool
+	timeAgo                  *time.Duration
+	createBucketAt           *string
+	createBucketRandomSuffix *bool
+	include *string
+	exclude *string
+
+	mappings    *remote_pb.RemoteStorageMapping
+	remoteConfs map[string]*remote_pb.RemoteConf
+	bucketsDir  string
+}
+
+var _ = filer_pb.FilerClient(&RemoteGatewayOptions{})
+
+func (option *RemoteGatewayOptions) WithFilerClient(fn func(filer_pb.SeaweedFilerClient) error) error {
+	return pb.WithFilerClient(pb.ServerAddress(*option.filerAddress), option.grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
+		return fn(client)
+	})
+}
+func (option *RemoteGatewayOptions) AdjustedUrl(location *filer_pb.Location) string {
+	return location.Url
+}
+
+var (
+	remoteGatewayOptions RemoteGatewayOptions
+)
+
+func init() {
+	cmdFilerRemoteGateway.Run = runFilerRemoteGateway // break init cycle
+	remoteGatewayOptions.filerAddress = cmdFilerRemoteGateway.Flag.String("filer", "localhost:8888", "filer of the SeaweedFS cluster")
+	remoteGatewayOptions.createBucketAt = cmdFilerRemoteGateway.Flag.String("createBucketAt", "", "one remote storage name to create new buckets in")
+	remoteGatewayOptions.createBucketRandomSuffix = cmdFilerRemoteGateway.Flag.Bool("createBucketWithRandomSuffix", true, "add randomized suffix to bucket name to avoid conflicts")
+	remoteGatewayOptions.readChunkFromFiler = cmdFilerRemoteGateway.Flag.Bool("filerProxy", false, "read file chunks from filer instead of volume servers")
+	remoteGatewayOptions.timeAgo = cmdFilerRemoteGateway.Flag.Duration("timeAgo", 0, "start time before now. \"300ms\", \"1.5h\" or \"2h45m\". Valid time units are \"ns\", \"us\" (or \"µs\"), \"ms\", \"s\", \"m\", \"h\"")
+	remoteGatewayOptions.include = cmdFilerRemoteGateway.Flag.String("include", "", "pattens of new bucket names, e.g., s3*")
+	remoteGatewayOptions.exclude = cmdFilerRemoteGateway.Flag.String("exclude", "", "pattens of new bucket names, e.g., local*")
+}
+
+var cmdFilerRemoteGateway = &Command{
+	UsageLine: "filer.remote.gateway",
+	Short:     "resumable continuously write back bucket creation, deletion, and other local updates to remote object store",
+	Long: `resumable continuously write back bucket creation, deletion, and other local updates to remote object store
+
+	filer.remote.gateway listens on filer local buckets update events. 
+	If any bucket is created, deleted, or updated, it will mirror the changes to remote object store.
+
+		weed filer.remote.sync -createBucketAt=cloud1
+
+`,
+}
+
+func runFilerRemoteGateway(cmd *Command, args []string) bool {
+
+	util.LoadConfiguration("security", false)
+	grpcDialOption := security.LoadClientTLS(util.GetViper(), "grpc.client")
+	remoteGatewayOptions.grpcDialOption = grpcDialOption
+
+	filerAddress := pb.ServerAddress(*remoteGatewayOptions.filerAddress)
+
+	filerSource := &source.FilerSource{}
+	filerSource.DoInitialize(
+		filerAddress.ToHttpAddress(),
+		filerAddress.ToGrpcAddress(),
+		"/", // does not matter
+		*remoteGatewayOptions.readChunkFromFiler,
+	)
+
+	remoteGatewayOptions.bucketsDir = "/buckets"
+	// check buckets again
+	remoteGatewayOptions.WithFilerClient(func(filerClient filer_pb.SeaweedFilerClient) error {
+		resp, err := filerClient.GetFilerConfiguration(context.Background(), &filer_pb.GetFilerConfigurationRequest{})
+		if err != nil {
+			return err
+		}
+		remoteGatewayOptions.bucketsDir = resp.DirBuckets
+		return nil
+	})
+
+	// read filer remote storage mount mappings
+	if detectErr := remoteGatewayOptions.collectRemoteStorageConf(); detectErr != nil {
+		fmt.Fprintf(os.Stderr, "read mount info: %v\n", detectErr)
+		return true
+	}
+
+	// synchronize /buckets folder
+	fmt.Printf("synchronize buckets in %s ...\n", remoteGatewayOptions.bucketsDir)
+	util.RetryForever("filer.remote.sync buckets", func() error {
+		return remoteGatewayOptions.followBucketUpdatesAndUploadToRemote(filerSource)
+	}, func(err error) bool {
+		if err != nil {
+			glog.Errorf("synchronize %s: %v", remoteGatewayOptions.bucketsDir, err)
+		}
+		return true
+	})
+	return true
+
+}

weed/command/filer_remote_gateway_buckets.go

@@ -0,0 +1,398 @@
+package command
+
+import (
+	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/filer"
+	"github.com/chrislusf/seaweedfs/weed/glog"
+	"github.com/chrislusf/seaweedfs/weed/pb"
+	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
+	"github.com/chrislusf/seaweedfs/weed/pb/remote_pb"
+	"github.com/chrislusf/seaweedfs/weed/remote_storage"
+	"github.com/chrislusf/seaweedfs/weed/replication/source"
+	"github.com/chrislusf/seaweedfs/weed/util"
+	"github.com/golang/protobuf/proto"
+	"math"
+	"math/rand"
+	"path/filepath"
+	"strings"
+	"time"
+)
+
+func (option *RemoteGatewayOptions) followBucketUpdatesAndUploadToRemote(filerSource *source.FilerSource) error {
+
+	// read filer remote storage mount mappings
+	if detectErr := option.collectRemoteStorageConf(); detectErr != nil {
+		return fmt.Errorf("read mount info: %v", detectErr)
+	}
+
+	eachEntryFunc, err := option.makeBucketedEventProcessor(filerSource)
+	if err != nil {
+		return err
+	}
+
+	processEventFnWithOffset := pb.AddOffsetFunc(eachEntryFunc, 3*time.Second, func(counter int64, lastTsNs int64) error {
+		lastTime := time.Unix(0, lastTsNs)
+		glog.V(0).Infof("remote sync %s progressed to %v %0.2f/sec", *option.filerAddress, lastTime, float64(counter)/float64(3))
+		return remote_storage.SetSyncOffset(option.grpcDialOption, pb.ServerAddress(*option.filerAddress), option.bucketsDir, lastTsNs)
+	})
+
+	lastOffsetTs := collectLastSyncOffset(option, option.grpcDialOption, pb.ServerAddress(*option.filerAddress), option.bucketsDir, *option.timeAgo)
+
+	return pb.FollowMetadata(pb.ServerAddress(*option.filerAddress), option.grpcDialOption, "filer.remote.sync",
+		option.bucketsDir, []string{filer.DirectoryEtcRemote}, lastOffsetTs.UnixNano(), 0, processEventFnWithOffset, false)
+}
+
+func (option *RemoteGatewayOptions) makeBucketedEventProcessor(filerSource *source.FilerSource) (pb.ProcessMetadataFunc, error) {
+
+	handleCreateBucket := func(entry *filer_pb.Entry) error {
+		if !entry.IsDirectory {
+			return nil
+		}
+		if entry.RemoteEntry != nil {
+			// this directory is imported from "remote.mount.buckets" or "remote.mount"
+			return nil
+		}
+		if option.mappings.PrimaryBucketStorageName != "" && *option.createBucketAt == "" {
+			*option.createBucketAt = option.mappings.PrimaryBucketStorageName
+			glog.V(0).Infof("%s is set as the primary remote storage", *option.createBucketAt)
+		}
+		if len(option.mappings.Mappings) == 1 && *option.createBucketAt == "" {
+			for k := range option.mappings.Mappings {
+				*option.createBucketAt = k
+				glog.V(0).Infof("%s is set as the only remote storage", *option.createBucketAt)
+			}
+		}
+		if *option.createBucketAt == "" {
+			return nil
+		}
+		remoteConf, found := option.remoteConfs[*option.createBucketAt]
+		if !found {
+			return fmt.Errorf("un-configured remote storage %s", *option.createBucketAt)
+		}
+
+		client, err := remote_storage.GetRemoteStorage(remoteConf)
+		if err != nil {
+			return err
+		}
+
+		bucketName := strings.ToLower(entry.Name)
+		if *option.include != "" {
+			if ok, _ := filepath.Match(*option.include, entry.Name); !ok {
+				return nil
+			}
+		}
+		if *option.exclude != "" {
+			if ok, _ := filepath.Match(*option.exclude, entry.Name); ok {
+				return nil
+			}
+		}
+		if *option.createBucketRandomSuffix {
+			// https://docs.aws.amazon.com/AmazonS3/latest/userguide/bucketnamingrules.html
+			if len(bucketName)+5 > 63 {
+				bucketName = bucketName[:58]
+			}
+			bucketName = fmt.Sprintf("%s-%4d", bucketName, rand.Uint32()%10000)
+		}
+
+		glog.V(0).Infof("create bucket %s", bucketName)
+		if err := client.CreateBucket(bucketName); err != nil {
+			return fmt.Errorf("create bucket %s in %s: %v", bucketName, remoteConf.Name, err)
+		}
+
+		bucketPath := util.FullPath(option.bucketsDir).Child(entry.Name)
+		remoteLocation := &remote_pb.RemoteStorageLocation{
+			Name:   *option.createBucketAt,
+			Bucket: bucketName,
+			Path:   "/",
+		}
+
+		// need to add new mapping here before getting upates from metadata tailing
+		option.mappings.Mappings[string(bucketPath)] = remoteLocation
+
+		return filer.InsertMountMapping(option, string(bucketPath), remoteLocation)
+
+	}
+	handleDeleteBucket := func(entry *filer_pb.Entry) error {
+		if !entry.IsDirectory {
+			return nil
+		}
+
+		client, remoteStorageMountLocation, err := option.findRemoteStorageClient(entry.Name)
+		if err != nil {
+			return fmt.Errorf("findRemoteStorageClient %s: %v", entry.Name, err)
+		}
+
+		glog.V(0).Infof("delete remote bucket %s", remoteStorageMountLocation.Bucket)
+		if err := client.DeleteBucket(remoteStorageMountLocation.Bucket); err != nil {
+			return fmt.Errorf("delete remote bucket %s: %v", remoteStorageMountLocation.Bucket, err)
+		}
+
+		bucketPath := util.FullPath(option.bucketsDir).Child(entry.Name)
+
+		return filer.DeleteMountMapping(option, string(bucketPath))
+	}
+
+	handleEtcRemoteChanges := func(resp *filer_pb.SubscribeMetadataResponse) error {
+		message := resp.EventNotification
+		if message.NewEntry != nil {
+			// update
+			if message.NewEntry.Name == filer.REMOTE_STORAGE_MOUNT_FILE {
+				newMappings, readErr := filer.UnmarshalRemoteStorageMappings(message.NewEntry.Content)
+				if readErr != nil {
+					return fmt.Errorf("unmarshal mappings: %v", readErr)
+				}
+				option.mappings = newMappings
+			}
+			if strings.HasSuffix(message.NewEntry.Name, filer.REMOTE_STORAGE_CONF_SUFFIX) {
+				conf := &remote_pb.RemoteConf{}
+				if err := proto.Unmarshal(message.NewEntry.Content, conf); err != nil {
+					return fmt.Errorf("unmarshal %s/%s: %v", filer.DirectoryEtcRemote, message.NewEntry.Name, err)
+				}
+				option.remoteConfs[conf.Name] = conf
+			}
+		} else if message.OldEntry != nil {
+			// deletion
+			if strings.HasSuffix(message.OldEntry.Name, filer.REMOTE_STORAGE_CONF_SUFFIX) {
+				conf := &remote_pb.RemoteConf{}
+				if err := proto.Unmarshal(message.OldEntry.Content, conf); err != nil {
+					return fmt.Errorf("unmarshal %s/%s: %v", filer.DirectoryEtcRemote, message.OldEntry.Name, err)
+				}
+				delete(option.remoteConfs, conf.Name)
+			}
+		}
+
+		return nil
+	}
+
+	eachEntryFunc := func(resp *filer_pb.SubscribeMetadataResponse) error {
+		message := resp.EventNotification
+		if strings.HasPrefix(resp.Directory, filer.DirectoryEtcRemote) {
+			return handleEtcRemoteChanges(resp)
+		}
+
+		if message.OldEntry == nil && message.NewEntry == nil {
+			return nil
+		}
+		if message.OldEntry == nil && message.NewEntry != nil {
+			if message.NewParentPath == option.bucketsDir {
+				return handleCreateBucket(message.NewEntry)
+			}
+			if !filer.HasData(message.NewEntry) {
+				return nil
+			}
+			bucket, remoteStorageMountLocation, remoteStorage, ok := option.detectBucketInfo(message.NewParentPath)
+			if !ok {
+				return nil
+			}
+			client, err := remote_storage.GetRemoteStorage(remoteStorage)
+			if err != nil {
+				return err
+			}
+			glog.V(2).Infof("create: %+v", resp)
+			if !shouldSendToRemote(message.NewEntry) {
+				glog.V(2).Infof("skipping creating: %+v", resp)
+				return nil
+			}
+			dest := toRemoteStorageLocation(bucket, util.NewFullPath(message.NewParentPath, message.NewEntry.Name), remoteStorageMountLocation)
+			if message.NewEntry.IsDirectory {
+				glog.V(0).Infof("mkdir  %s", remote_storage.FormatLocation(dest))
+				return client.WriteDirectory(dest, message.NewEntry)
+			}
+			glog.V(0).Infof("create %s", remote_storage.FormatLocation(dest))
+			reader := filer.NewFileReader(filerSource, message.NewEntry)
+			remoteEntry, writeErr := client.WriteFile(dest, message.NewEntry, reader)
+			if writeErr != nil {
+				return writeErr
+			}
+			return updateLocalEntry(&remoteSyncOptions, message.NewParentPath, message.NewEntry, remoteEntry)
+		}
+		if message.OldEntry != nil && message.NewEntry == nil {
+			if resp.Directory == option.bucketsDir {
+				return handleDeleteBucket(message.OldEntry)
+			}
+			bucket, remoteStorageMountLocation, remoteStorage, ok := option.detectBucketInfo(resp.Directory)
+			if !ok {
+				return nil
+			}
+			client, err := remote_storage.GetRemoteStorage(remoteStorage)
+			if err != nil {
+				return err
+			}
+			glog.V(2).Infof("delete: %+v", resp)
+			dest := toRemoteStorageLocation(bucket, util.NewFullPath(resp.Directory, message.OldEntry.Name), remoteStorageMountLocation)
+			if message.OldEntry.IsDirectory {
+				glog.V(0).Infof("rmdir  %s", remote_storage.FormatLocation(dest))
+				return client.RemoveDirectory(dest)
+			}
+			glog.V(0).Infof("delete %s", remote_storage.FormatLocation(dest))
+			return client.DeleteFile(dest)
+		}
+		if message.OldEntry != nil && message.NewEntry != nil {
+			if resp.Directory == option.bucketsDir {
+				if message.NewParentPath == option.bucketsDir {
+					if message.OldEntry.Name == message.NewEntry.Name {
+						return nil
+					}
+					if err := handleCreateBucket(message.NewEntry); err != nil {
+						return err
+					}
+					if err := handleDeleteBucket(message.OldEntry); err != nil {
+						return err
+					}
+				}
+			}
+			oldBucket, oldRemoteStorageMountLocation, oldRemoteStorage, oldOk := option.detectBucketInfo(resp.Directory)
+			newBucket, newRemoteStorageMountLocation, newRemoteStorage, newOk := option.detectBucketInfo(message.NewParentPath)
+			if oldOk && newOk {
+				if !shouldSendToRemote(message.NewEntry) {
+					glog.V(2).Infof("skipping updating: %+v", resp)
+					return nil
+				}
+				client, err := remote_storage.GetRemoteStorage(oldRemoteStorage)
+				if err != nil {
+					return err
+				}
+				if resp.Directory == message.NewParentPath && message.OldEntry.Name == message.NewEntry.Name {
+					// update the same entry
+					if message.NewEntry.IsDirectory {
+						// update directory property
+						return nil
+					}
+					if filer.IsSameData(message.OldEntry, message.NewEntry) {
+						glog.V(2).Infof("update meta: %+v", resp)
+						oldDest := toRemoteStorageLocation(oldBucket, util.NewFullPath(resp.Directory, message.OldEntry.Name), oldRemoteStorageMountLocation)
+						return client.UpdateFileMetadata(oldDest, message.OldEntry, message.NewEntry)
+					} else {
+						newDest := toRemoteStorageLocation(newBucket, util.NewFullPath(message.NewParentPath, message.NewEntry.Name), newRemoteStorageMountLocation)
+						reader := filer.NewFileReader(filerSource, message.NewEntry)
+						glog.V(0).Infof("create %s", remote_storage.FormatLocation(newDest))
+						remoteEntry, writeErr := client.WriteFile(newDest, message.NewEntry, reader)
+						if writeErr != nil {
+							return writeErr
+						}
+						return updateLocalEntry(&remoteSyncOptions, message.NewParentPath, message.NewEntry, remoteEntry)
+					}
+				}
+			}
+
+			// the following is entry rename
+			if oldOk {
+				client, err := remote_storage.GetRemoteStorage(oldRemoteStorage)
+				if err != nil {
+					return err
+				}
+				oldDest := toRemoteStorageLocation(oldBucket, util.NewFullPath(resp.Directory, message.OldEntry.Name), oldRemoteStorageMountLocation)
+				if message.OldEntry.IsDirectory {
+					return client.RemoveDirectory(oldDest)
+				}
+				glog.V(0).Infof("delete %s", remote_storage.FormatLocation(oldDest))
+				if err := client.DeleteFile(oldDest); err != nil {
+					return err
+				}
+			}
+			if newOk {
+				if !shouldSendToRemote(message.NewEntry) {
+					glog.V(2).Infof("skipping updating: %+v", resp)
+					return nil
+				}
+				client, err := remote_storage.GetRemoteStorage(newRemoteStorage)
+				if err != nil {
+					return err
+				}
+				newDest := toRemoteStorageLocation(newBucket, util.NewFullPath(message.NewParentPath, message.NewEntry.Name), newRemoteStorageMountLocation)
+				if message.NewEntry.IsDirectory {
+					return client.WriteDirectory(newDest, message.NewEntry)
+				}
+				reader := filer.NewFileReader(filerSource, message.NewEntry)
+				glog.V(0).Infof("create %s", remote_storage.FormatLocation(newDest))
+				remoteEntry, writeErr := client.WriteFile(newDest, message.NewEntry, reader)
+				if writeErr != nil {
+					return writeErr
+				}
+				return updateLocalEntry(&remoteSyncOptions, message.NewParentPath, message.NewEntry, remoteEntry)
+			}
+		}
+
+		return nil
+	}
+	return eachEntryFunc, nil
+}
+
+func (option *RemoteGatewayOptions) findRemoteStorageClient(bucketName string) (client remote_storage.RemoteStorageClient, remoteStorageMountLocation *remote_pb.RemoteStorageLocation, err error) {
+	bucket := util.FullPath(option.bucketsDir).Child(bucketName)
+
+	var isMounted bool
+	remoteStorageMountLocation, isMounted = option.mappings.Mappings[string(bucket)]
+	if !isMounted {
+		return nil, remoteStorageMountLocation, fmt.Errorf("%s is not mounted", bucket)
+	}
+	remoteConf, hasClient := option.remoteConfs[remoteStorageMountLocation.Name]
+	if !hasClient {
+		return nil, remoteStorageMountLocation, fmt.Errorf("%s mounted to un-configured %+v", bucket, remoteStorageMountLocation)
+	}
+
+	client, err = remote_storage.GetRemoteStorage(remoteConf)
+	if err != nil {
+		return nil, remoteStorageMountLocation, err
+	}
+	return client, remoteStorageMountLocation, nil
+}
+
+func (option *RemoteGatewayOptions) detectBucketInfo(actualDir string) (bucket util.FullPath, remoteStorageMountLocation *remote_pb.RemoteStorageLocation, remoteConf *remote_pb.RemoteConf, ok bool) {
+	bucket, ok = extractBucketPath(option.bucketsDir, actualDir)
+	if !ok {
+		return "", nil, nil, false
+	}
+	var isMounted bool
+	remoteStorageMountLocation, isMounted = option.mappings.Mappings[string(bucket)]
+	if !isMounted {
+		glog.Warningf("%s is not mounted", bucket)
+		return "", nil, nil, false
+	}
+	var hasClient bool
+	remoteConf, hasClient = option.remoteConfs[remoteStorageMountLocation.Name]
+	if !hasClient {
+		glog.Warningf("%s mounted to un-configured %+v", bucket, remoteStorageMountLocation)
+		return "", nil, nil, false
+	}
+	return bucket, remoteStorageMountLocation, remoteConf, true
+}
+
+func extractBucketPath(bucketsDir, dir string) (util.FullPath, bool) {
+	if !strings.HasPrefix(dir, bucketsDir+"/") {
+		return "", false
+	}
+	parts := strings.SplitN(dir[len(bucketsDir)+1:], "/", 2)
+	return util.FullPath(bucketsDir).Child(parts[0]), true
+}
+
+func (option *RemoteGatewayOptions) collectRemoteStorageConf() (err error) {
+
+	if mappings, err := filer.ReadMountMappings(option.grpcDialOption, pb.ServerAddress(*option.filerAddress)); err != nil {
+		return err
+	} else {
+		option.mappings = mappings
+	}
+
+	option.remoteConfs = make(map[string]*remote_pb.RemoteConf)
+	var lastConfName string
+	err = filer_pb.List(option, filer.DirectoryEtcRemote, "", func(entry *filer_pb.Entry, isLast bool) error {
+		if !strings.HasSuffix(entry.Name, filer.REMOTE_STORAGE_CONF_SUFFIX) {
+			return nil
+		}
+		conf := &remote_pb.RemoteConf{}
+		if err := proto.Unmarshal(entry.Content, conf); err != nil {
+			return fmt.Errorf("unmarshal %s/%s: %v", filer.DirectoryEtcRemote, entry.Name, err)
+		}
+		option.remoteConfs[conf.Name] = conf
+		lastConfName = conf.Name
+		return nil
+	}, "", false, math.MaxUint32)
+
+	if option.mappings.PrimaryBucketStorageName == "" && len(option.remoteConfs) == 1 {
+		glog.V(0).Infof("%s is set to the default remote storage", lastConfName)
+		option.mappings.PrimaryBucketStorageName = lastConfName
+	}
+
+	return
+}

weed/command/filer_remote_sync.go

@@ -1,13 +1,10 @@
 package command
 
 import (
-	"context"
 	"fmt"
-	"github.com/chrislusf/seaweedfs/weed/filer"
 	"github.com/chrislusf/seaweedfs/weed/glog"
 	"github.com/chrislusf/seaweedfs/weed/pb"
 	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
-	"github.com/chrislusf/seaweedfs/weed/remote_storage"
 	"github.com/chrislusf/seaweedfs/weed/replication/source"
 	"github.com/chrislusf/seaweedfs/weed/security"
 	"github.com/chrislusf/seaweedfs/weed/util"
@@ -16,22 +13,18 @@ import (
 )
 
 type RemoteSyncOptions struct {
-	filerAddress       *string
-	grpcDialOption     grpc.DialOption
-	readChunkFromFiler *bool
-	debug              *bool
-	timeAgo            *time.Duration
-	dir                *string
-}
+	filerAddress             *string
+	grpcDialOption           grpc.DialOption
+	readChunkFromFiler       *bool
+	timeAgo                  *time.Duration
+	dir                      *string
 
-const (
-	RemoteSyncKeyPrefix = "remote.sync."
-)
+}
 
 var _ = filer_pb.FilerClient(&RemoteSyncOptions{})
 
 func (option *RemoteSyncOptions) WithFilerClient(fn func(filer_pb.SeaweedFilerClient) error) error {
-	return pb.WithFilerClient(*option.filerAddress, option.grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
+	return pb.WithFilerClient(pb.ServerAddress(*option.filerAddress), option.grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
 		return fn(client)
 	})
 }
@@ -46,20 +39,22 @@ var (
 func init() {
 	cmdFilerRemoteSynchronize.Run = runFilerRemoteSynchronize // break init cycle
 	remoteSyncOptions.filerAddress = cmdFilerRemoteSynchronize.Flag.String("filer", "localhost:8888", "filer of the SeaweedFS cluster")
-	remoteSyncOptions.dir = cmdFilerRemoteSynchronize.Flag.String("dir", "/", "a mounted directory on filer")
+	remoteSyncOptions.dir = cmdFilerRemoteSynchronize.Flag.String("dir", "", "a mounted directory on filer")
 	remoteSyncOptions.readChunkFromFiler = cmdFilerRemoteSynchronize.Flag.Bool("filerProxy", false, "read file chunks from filer instead of volume servers")
-	remoteSyncOptions.debug = cmdFilerRemoteSynchronize.Flag.Bool("debug", false, "debug mode to print out filer updated remote files")
 	remoteSyncOptions.timeAgo = cmdFilerRemoteSynchronize.Flag.Duration("timeAgo", 0, "start time before now. \"300ms\", \"1.5h\" or \"2h45m\". Valid time units are \"ns\", \"us\" (or \"µs\"), \"ms\", \"s\", \"m\", \"h\"")
 }
 
 var cmdFilerRemoteSynchronize = &Command{
-	UsageLine: "filer.remote.sync -filer=<filerHost>:<filerPort> -dir=/mount/s3_on_cloud",
-	Short:     "resumable continuously write back updates to remote storage if the directory is mounted to the remote storage",
-	Long: `resumable continuously write back updates to remote storage if the directory is mounted to the remote storage
+	UsageLine: "filer.remote.sync",
+	Short:     "resumable continuously write back updates to remote storage",
+	Long: `resumable continuously write back updates to remote storage
 
 	filer.remote.sync listens on filer update events. 
 	If any mounted remote file is updated, it will fetch the updated content,
 	and write to the remote storage.
+
+		weed filer.remote.sync -dir=/mount/s3_on_cloud
+
 `,
 }
 
@@ -70,169 +65,29 @@ func runFilerRemoteSynchronize(cmd *Command, args []string) bool {
 	remoteSyncOptions.grpcDialOption = grpcDialOption
 
 	dir := *remoteSyncOptions.dir
-	filerAddress := *remoteSyncOptions.filerAddress
-
-	// read filer remote storage mount mappings
-	_, _, remoteStorageMountLocation, storageConf, detectErr := filer.DetectMountInfo(grpcDialOption, filerAddress, dir)
-	if detectErr != nil {
-		fmt.Printf("read mount info: %v", detectErr)
-		return false
-	}
+	filerAddress := pb.ServerAddress(*remoteSyncOptions.filerAddress)
 
 	filerSource := &source.FilerSource{}
 	filerSource.DoInitialize(
-		filerAddress,
-		pb.ServerToGrpcAddress(filerAddress),
+		filerAddress.ToHttpAddress(),
+		filerAddress.ToGrpcAddress(),
 		"/", // does not matter
 		*remoteSyncOptions.readChunkFromFiler,
 	)
 
-	fmt.Printf("synchronize %s to remote storage...\n", dir)
-	util.RetryForever("filer.remote.sync "+dir, func() error {
-		return followUpdatesAndUploadToRemote(&remoteSyncOptions, filerSource, dir, storageConf, remoteStorageMountLocation)
-	}, func(err error) bool {
-		if err != nil {
-			glog.Errorf("synchronize %s: %v", dir, err)
-		}
+	if dir != "" {
+		fmt.Printf("synchronize %s to remote storage...\n", dir)
+		util.RetryForever("filer.remote.sync "+dir, func() error {
+			return followUpdatesAndUploadToRemote(&remoteSyncOptions, filerSource, dir)
+		}, func(err error) bool {
+			if err != nil {
+				glog.Errorf("synchronize %s: %v", dir, err)
+			}
+			return true
+		})
 		return true
-	})
+	}
 
 	return true
-}
-
-func followUpdatesAndUploadToRemote(option *RemoteSyncOptions, filerSource *source.FilerSource, mountedDir string, remoteStorage *filer_pb.RemoteConf, remoteStorageMountLocation *filer_pb.RemoteStorageLocation) error {
-
-	dirHash := util.HashStringToLong(mountedDir)
-
-	// 1. specified by timeAgo
-	// 2. last offset timestamp for this directory
-	// 3. directory creation time
-	var lastOffsetTs time.Time
-	if *option.timeAgo == 0 {
-		mountedDirEntry, err := filer_pb.GetEntry(option, util.FullPath(mountedDir))
-		if err != nil {
-			return fmt.Errorf("lookup %s: %v", mountedDir, err)
-		}
-
-		lastOffsetTsNs, err := getOffset(option.grpcDialOption, *option.filerAddress, RemoteSyncKeyPrefix, int32(dirHash))
-		if err == nil && mountedDirEntry.Attributes.Crtime < lastOffsetTsNs/1000000 {
-			lastOffsetTs = time.Unix(0, lastOffsetTsNs)
-			glog.V(0).Infof("resume from %v", lastOffsetTs)
-		} else {
-			lastOffsetTs = time.Unix(mountedDirEntry.Attributes.Crtime, 0)
-		}
-	} else {
-		lastOffsetTs = time.Now().Add(-*option.timeAgo)
-	}
-
-	client, err := remote_storage.GetRemoteStorage(remoteStorage)
-	if err != nil {
-		return err
-	}
-
-	eachEntryFunc := func(resp *filer_pb.SubscribeMetadataResponse) error {
-		message := resp.EventNotification
-		if message.OldEntry == nil && message.NewEntry == nil {
-			return nil
-		}
-		if message.OldEntry == nil && message.NewEntry != nil {
-			if !filer.HasData(message.NewEntry) {
-				return nil
-			}
-			glog.V(2).Infof("create: %+v", resp)
-			if !shouldSendToRemote(message.NewEntry) {
-				glog.V(2).Infof("skipping creating: %+v", resp)
-				return nil
-			}
-			dest := toRemoteStorageLocation(util.FullPath(mountedDir), util.NewFullPath(message.NewParentPath, message.NewEntry.Name), remoteStorageMountLocation)
-			if message.NewEntry.IsDirectory {
-				glog.V(0).Infof("mkdir  %s", remote_storage.FormatLocation(dest))
-				return client.WriteDirectory(dest, message.NewEntry)
-			}
-			glog.V(0).Infof("create %s", remote_storage.FormatLocation(dest))
-			reader := filer.NewFileReader(filerSource, message.NewEntry)
-			remoteEntry, writeErr := client.WriteFile(dest, message.NewEntry, reader)
-			if writeErr != nil {
-				return writeErr
-			}
-			return updateLocalEntry(&remoteSyncOptions, message.NewParentPath, message.NewEntry, remoteEntry)
-		}
-		if message.OldEntry != nil && message.NewEntry == nil {
-			glog.V(2).Infof("delete: %+v", resp)
-			dest := toRemoteStorageLocation(util.FullPath(mountedDir), util.NewFullPath(resp.Directory, message.OldEntry.Name), remoteStorageMountLocation)
-			glog.V(0).Infof("delete %s", remote_storage.FormatLocation(dest))
-			return client.DeleteFile(dest)
-		}
-		if message.OldEntry != nil && message.NewEntry != nil {
-			oldDest := toRemoteStorageLocation(util.FullPath(mountedDir), util.NewFullPath(resp.Directory, message.OldEntry.Name), remoteStorageMountLocation)
-			dest := toRemoteStorageLocation(util.FullPath(mountedDir), util.NewFullPath(message.NewParentPath, message.NewEntry.Name), remoteStorageMountLocation)
-			if !shouldSendToRemote(message.NewEntry) {
-				glog.V(2).Infof("skipping updating: %+v", resp)
-				return nil
-			}
-			if message.NewEntry.IsDirectory {
-				return client.WriteDirectory(dest, message.NewEntry)
-			}
-			if resp.Directory == message.NewParentPath && message.OldEntry.Name == message.NewEntry.Name {
-				if filer.IsSameData(message.OldEntry, message.NewEntry) {
-					glog.V(2).Infof("update meta: %+v", resp)
-					return client.UpdateFileMetadata(dest, message.OldEntry, message.NewEntry)
-				}
-			}
-			glog.V(2).Infof("update: %+v", resp)
-			glog.V(0).Infof("delete %s", remote_storage.FormatLocation(oldDest))
-			if err := client.DeleteFile(oldDest); err != nil {
-				return err
-			}
-			reader := filer.NewFileReader(filerSource, message.NewEntry)
-			glog.V(0).Infof("create %s", remote_storage.FormatLocation(dest))
-			remoteEntry, writeErr := client.WriteFile(dest, message.NewEntry, reader)
-			if writeErr != nil {
-				return writeErr
-			}
-			return updateLocalEntry(&remoteSyncOptions, message.NewParentPath, message.NewEntry, remoteEntry)
-		}
-
-		return nil
-	}
-
-	processEventFnWithOffset := pb.AddOffsetFunc(eachEntryFunc, 3*time.Second, func(counter int64, lastTsNs int64) error {
-		lastTime := time.Unix(0, lastTsNs)
-		glog.V(0).Infof("remote sync %s progressed to %v %0.2f/sec", *option.filerAddress, lastTime, float64(counter)/float64(3))
-		return setOffset(option.grpcDialOption, *option.filerAddress, RemoteSyncKeyPrefix, int32(dirHash), lastTsNs)
-	})
-
-	return pb.FollowMetadata(*option.filerAddress, option.grpcDialOption,
-		"filer.remote.sync", mountedDir, lastOffsetTs.UnixNano(), 0, processEventFnWithOffset, false)
-}
-
-func toRemoteStorageLocation(mountDir, sourcePath util.FullPath, remoteMountLocation *filer_pb.RemoteStorageLocation) *filer_pb.RemoteStorageLocation {
-	source := string(sourcePath[len(mountDir):])
-	dest := util.FullPath(remoteMountLocation.Path).Child(source)
-	return &filer_pb.RemoteStorageLocation{
-		Name:   remoteMountLocation.Name,
-		Bucket: remoteMountLocation.Bucket,
-		Path:   string(dest),
-	}
-}
-
-func shouldSendToRemote(entry *filer_pb.Entry) bool {
-	if entry.RemoteEntry == nil {
-		return true
-	}
-	if entry.RemoteEntry.LastLocalSyncTsNs/1e9 < entry.Attributes.Mtime {
-		return true
-	}
-	return false
-}
-
-func updateLocalEntry(filerClient filer_pb.FilerClient, dir string, entry *filer_pb.Entry, remoteEntry *filer_pb.RemoteEntry) error {
-	entry.RemoteEntry = remoteEntry
-	return filerClient.WithFilerClient(func(client filer_pb.SeaweedFilerClient) error {
-		_, err := client.UpdateEntry(context.Background(), &filer_pb.UpdateEntryRequest{
-			Directory: dir,
-			Entry:     entry,
-		})
-		return err
-	})
+
 }

weed/command/filer_remote_sync_dir.go

@@ -0,0 +1,222 @@
+package command
+
+import (
+	"context"
+	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/filer"
+	"github.com/chrislusf/seaweedfs/weed/glog"
+	"github.com/chrislusf/seaweedfs/weed/pb"
+	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
+	"github.com/chrislusf/seaweedfs/weed/pb/remote_pb"
+	"github.com/chrislusf/seaweedfs/weed/remote_storage"
+	"github.com/chrislusf/seaweedfs/weed/replication/source"
+	"github.com/chrislusf/seaweedfs/weed/util"
+	"github.com/golang/protobuf/proto"
+	"google.golang.org/grpc"
+	"os"
+	"strings"
+	"time"
+)
+
+func followUpdatesAndUploadToRemote(option *RemoteSyncOptions, filerSource *source.FilerSource, mountedDir string) error {
+
+	// read filer remote storage mount mappings
+	_, _, remoteStorageMountLocation, remoteStorage, detectErr := filer.DetectMountInfo(option.grpcDialOption, pb.ServerAddress(*option.filerAddress), mountedDir)
+	if detectErr != nil {
+		return fmt.Errorf("read mount info: %v", detectErr)
+	}
+
+	eachEntryFunc, err := makeEventProcessor(remoteStorage, mountedDir, remoteStorageMountLocation, filerSource)
+	if err != nil {
+		return err
+	}
+
+	processEventFnWithOffset := pb.AddOffsetFunc(eachEntryFunc, 3*time.Second, func(counter int64, lastTsNs int64) error {
+		lastTime := time.Unix(0, lastTsNs)
+		glog.V(0).Infof("remote sync %s progressed to %v %0.2f/sec", *option.filerAddress, lastTime, float64(counter)/float64(3))
+		return remote_storage.SetSyncOffset(option.grpcDialOption, pb.ServerAddress(*option.filerAddress), mountedDir, lastTsNs)
+	})
+
+	lastOffsetTs := collectLastSyncOffset(option, option.grpcDialOption, pb.ServerAddress(*option.filerAddress), mountedDir, *option.timeAgo)
+
+	return pb.FollowMetadata(pb.ServerAddress(*option.filerAddress), option.grpcDialOption, "filer.remote.sync",
+		mountedDir, []string{filer.DirectoryEtcRemote}, lastOffsetTs.UnixNano(), 0, processEventFnWithOffset, false)
+}
+
+func makeEventProcessor(remoteStorage *remote_pb.RemoteConf, mountedDir string, remoteStorageMountLocation *remote_pb.RemoteStorageLocation, filerSource *source.FilerSource) (pb.ProcessMetadataFunc, error) {
+	client, err := remote_storage.GetRemoteStorage(remoteStorage)
+	if err != nil {
+		return nil, err
+	}
+
+	handleEtcRemoteChanges := func(resp *filer_pb.SubscribeMetadataResponse) error {
+		message := resp.EventNotification
+		if message.NewEntry == nil {
+			return nil
+		}
+		if message.NewEntry.Name == filer.REMOTE_STORAGE_MOUNT_FILE {
+			mappings, readErr := filer.UnmarshalRemoteStorageMappings(message.NewEntry.Content)
+			if readErr != nil {
+				return fmt.Errorf("unmarshal mappings: %v", readErr)
+			}
+			if remoteLoc, found := mappings.Mappings[mountedDir]; found {
+				if remoteStorageMountLocation.Bucket != remoteLoc.Bucket || remoteStorageMountLocation.Path != remoteLoc.Path {
+					glog.Fatalf("Unexpected mount changes %+v => %+v", remoteStorageMountLocation, remoteLoc)
+				}
+			} else {
+				glog.V(0).Infof("unmounted %s exiting ...", mountedDir)
+				os.Exit(0)
+			}
+		}
+		if message.NewEntry.Name == remoteStorage.Name+filer.REMOTE_STORAGE_CONF_SUFFIX {
+			conf := &remote_pb.RemoteConf{}
+			if err := proto.Unmarshal(message.NewEntry.Content, conf); err != nil {
+				return fmt.Errorf("unmarshal %s/%s: %v", filer.DirectoryEtcRemote, message.NewEntry.Name, err)
+			}
+			remoteStorage = conf
+			if newClient, err := remote_storage.GetRemoteStorage(remoteStorage); err == nil {
+				client = newClient
+			} else {
+				return err
+			}
+		}
+
+		return nil
+	}
+
+	eachEntryFunc := func(resp *filer_pb.SubscribeMetadataResponse) error {
+		message := resp.EventNotification
+		if strings.HasPrefix(resp.Directory, filer.DirectoryEtcRemote) {
+			return handleEtcRemoteChanges(resp)
+		}
+
+		if message.OldEntry == nil && message.NewEntry == nil {
+			return nil
+		}
+		if message.OldEntry == nil && message.NewEntry != nil {
+			if !filer.HasData(message.NewEntry) {
+				return nil
+			}
+			glog.V(2).Infof("create: %+v", resp)
+			if !shouldSendToRemote(message.NewEntry) {
+				glog.V(2).Infof("skipping creating: %+v", resp)
+				return nil
+			}
+			dest := toRemoteStorageLocation(util.FullPath(mountedDir), util.NewFullPath(message.NewParentPath, message.NewEntry.Name), remoteStorageMountLocation)
+			if message.NewEntry.IsDirectory {
+				glog.V(0).Infof("mkdir  %s", remote_storage.FormatLocation(dest))
+				return client.WriteDirectory(dest, message.NewEntry)
+			}
+			glog.V(0).Infof("create %s", remote_storage.FormatLocation(dest))
+			reader := filer.NewFileReader(filerSource, message.NewEntry)
+			remoteEntry, writeErr := client.WriteFile(dest, message.NewEntry, reader)
+			if writeErr != nil {
+				return writeErr
+			}
+			return updateLocalEntry(&remoteSyncOptions, message.NewParentPath, message.NewEntry, remoteEntry)
+		}
+		if message.OldEntry != nil && message.NewEntry == nil {
+			glog.V(2).Infof("delete: %+v", resp)
+			dest := toRemoteStorageLocation(util.FullPath(mountedDir), util.NewFullPath(resp.Directory, message.OldEntry.Name), remoteStorageMountLocation)
+			if message.OldEntry.IsDirectory {
+				glog.V(0).Infof("rmdir  %s", remote_storage.FormatLocation(dest))
+				return client.RemoveDirectory(dest)
+			}
+			glog.V(0).Infof("delete %s", remote_storage.FormatLocation(dest))
+			return client.DeleteFile(dest)
+		}
+		if message.OldEntry != nil && message.NewEntry != nil {
+			oldDest := toRemoteStorageLocation(util.FullPath(mountedDir), util.NewFullPath(resp.Directory, message.OldEntry.Name), remoteStorageMountLocation)
+			dest := toRemoteStorageLocation(util.FullPath(mountedDir), util.NewFullPath(message.NewParentPath, message.NewEntry.Name), remoteStorageMountLocation)
+			if !shouldSendToRemote(message.NewEntry) {
+				glog.V(2).Infof("skipping updating: %+v", resp)
+				return nil
+			}
+			if message.NewEntry.IsDirectory {
+				return client.WriteDirectory(dest, message.NewEntry)
+			}
+			if resp.Directory == message.NewParentPath && message.OldEntry.Name == message.NewEntry.Name {
+				if filer.IsSameData(message.OldEntry, message.NewEntry) {
+					glog.V(2).Infof("update meta: %+v", resp)
+					return client.UpdateFileMetadata(dest, message.OldEntry, message.NewEntry)
+				}
+			}
+			glog.V(2).Infof("update: %+v", resp)
+			glog.V(0).Infof("delete %s", remote_storage.FormatLocation(oldDest))
+			if err := client.DeleteFile(oldDest); err != nil {
+				return err
+			}
+			reader := filer.NewFileReader(filerSource, message.NewEntry)
+			glog.V(0).Infof("create %s", remote_storage.FormatLocation(dest))
+			remoteEntry, writeErr := client.WriteFile(dest, message.NewEntry, reader)
+			if writeErr != nil {
+				return writeErr
+			}
+			return updateLocalEntry(&remoteSyncOptions, message.NewParentPath, message.NewEntry, remoteEntry)
+		}
+
+		return nil
+	}
+	return eachEntryFunc, nil
+}
+
+func collectLastSyncOffset(filerClient filer_pb.FilerClient, grpcDialOption grpc.DialOption, filerAddress pb.ServerAddress, mountedDir string, timeAgo time.Duration) time.Time {
+	// 1. specified by timeAgo
+	// 2. last offset timestamp for this directory
+	// 3. directory creation time
+	var lastOffsetTs time.Time
+	if timeAgo == 0 {
+		mountedDirEntry, err := filer_pb.GetEntry(filerClient, util.FullPath(mountedDir))
+		if err != nil {
+			glog.V(0).Infof("get mounted directory %s: %v", mountedDir, err)
+			return time.Now()
+		}
+
+		lastOffsetTsNs, err := remote_storage.GetSyncOffset(grpcDialOption, filerAddress, mountedDir)
+		if mountedDirEntry != nil {
+			if err == nil && mountedDirEntry.Attributes.Crtime < lastOffsetTsNs/1000000 {
+				lastOffsetTs = time.Unix(0, lastOffsetTsNs)
+				glog.V(0).Infof("resume from %v", lastOffsetTs)
+			} else {
+				lastOffsetTs = time.Unix(mountedDirEntry.Attributes.Crtime, 0)
+			}
+		} else {
+			lastOffsetTs = time.Now()
+		}
+	} else {
+		lastOffsetTs = time.Now().Add(-timeAgo)
+	}
+	return lastOffsetTs
+}
+
+func toRemoteStorageLocation(mountDir, sourcePath util.FullPath, remoteMountLocation *remote_pb.RemoteStorageLocation) *remote_pb.RemoteStorageLocation {
+	source := string(sourcePath[len(mountDir):])
+	dest := util.FullPath(remoteMountLocation.Path).Child(source)
+	return &remote_pb.RemoteStorageLocation{
+		Name:   remoteMountLocation.Name,
+		Bucket: remoteMountLocation.Bucket,
+		Path:   string(dest),
+	}
+}
+
+func shouldSendToRemote(entry *filer_pb.Entry) bool {
+	if entry.RemoteEntry == nil {
+		return true
+	}
+	if entry.RemoteEntry.RemoteMtime < entry.Attributes.Mtime {
+		return true
+	}
+	return false
+}
+
+func updateLocalEntry(filerClient filer_pb.FilerClient, dir string, entry *filer_pb.Entry, remoteEntry *filer_pb.RemoteEntry) error {
+	remoteEntry.LastLocalSyncTsNs = time.Now().UnixNano()
+	entry.RemoteEntry = remoteEntry
+	return filerClient.WithFilerClient(func(client filer_pb.SeaweedFilerClient) error {
+		_, err := client.UpdateEntry(context.Background(), &filer_pb.UpdateEntryRequest{
+			Directory: dir,
+			Entry:     entry,
+		})
+		return err
+	})
+}

weed/command/filer_sync.go

@@ -93,9 +93,11 @@ func runFilerSynchronize(cmd *Command, args []string) bool {
 
 	grace.SetupProfiling(*syncCpuProfile, *syncMemProfile)
 
+	filerA := pb.ServerAddress(*syncOptions.filerA)
+	filerB := pb.ServerAddress(*syncOptions.filerB)
 	go func() {
 		for {
-			err := doSubscribeFilerMetaChanges(grpcDialOption, *syncOptions.filerA, *syncOptions.aPath, *syncOptions.aProxyByFiler, *syncOptions.filerB,
+			err := doSubscribeFilerMetaChanges(grpcDialOption, filerA, *syncOptions.aPath, *syncOptions.aProxyByFiler, filerB,
 				*syncOptions.bPath, *syncOptions.bReplication, *syncOptions.bCollection, *syncOptions.bTtlSec, *syncOptions.bProxyByFiler, *syncOptions.bDiskType, *syncOptions.bDebug)
 			if err != nil {
 				glog.Errorf("sync from %s to %s: %v", *syncOptions.filerA, *syncOptions.filerB, err)
@@ -107,7 +109,7 @@ func runFilerSynchronize(cmd *Command, args []string) bool {
 	if !*syncOptions.isActivePassive {
 		go func() {
 			for {
-				err := doSubscribeFilerMetaChanges(grpcDialOption, *syncOptions.filerB, *syncOptions.bPath, *syncOptions.bProxyByFiler, *syncOptions.filerA,
+				err := doSubscribeFilerMetaChanges(grpcDialOption, filerB, *syncOptions.bPath, *syncOptions.bProxyByFiler, filerA,
 					*syncOptions.aPath, *syncOptions.aReplication, *syncOptions.aCollection, *syncOptions.aTtlSec, *syncOptions.aProxyByFiler, *syncOptions.aDiskType, *syncOptions.aDebug)
 				if err != nil {
 					glog.Errorf("sync from %s to %s: %v", *syncOptions.filerB, *syncOptions.filerA, err)
@@ -122,7 +124,7 @@ func runFilerSynchronize(cmd *Command, args []string) bool {
 	return true
 }
 
-func doSubscribeFilerMetaChanges(grpcDialOption grpc.DialOption, sourceFiler, sourcePath string, sourceReadChunkFromFiler bool, targetFiler, targetPath string,
+func doSubscribeFilerMetaChanges(grpcDialOption grpc.DialOption, sourceFiler pb.ServerAddress, sourcePath string, sourceReadChunkFromFiler bool, targetFiler pb.ServerAddress, targetPath string,
 	replicationStr, collection string, ttlSec int, sinkWriteChunkByFiler bool, diskType string, debug bool) error {
 
 	// read source filer signature
@@ -147,9 +149,9 @@ func doSubscribeFilerMetaChanges(grpcDialOption grpc.DialOption, sourceFiler, so
 
 	// create filer sink
 	filerSource := &source.FilerSource{}
-	filerSource.DoInitialize(sourceFiler, pb.ServerToGrpcAddress(sourceFiler), sourcePath, sourceReadChunkFromFiler)
+	filerSource.DoInitialize(sourceFiler.ToHttpAddress(), sourceFiler.ToGrpcAddress(), sourcePath, sourceReadChunkFromFiler)
 	filerSink := &filersink.FilerSink{}
-	filerSink.DoInitialize(targetFiler, pb.ServerToGrpcAddress(targetFiler), targetPath, replicationStr, collection, ttlSec, diskType, grpcDialOption, sinkWriteChunkByFiler)
+	filerSink.DoInitialize(targetFiler.ToHttpAddress(), targetFiler.ToGrpcAddress(), targetPath, replicationStr, collection, ttlSec, diskType, grpcDialOption, sinkWriteChunkByFiler)
 	filerSink.SetSourceFiler(filerSource)
 
 	persistEventFn := genProcessFunction(sourcePath, targetPath, filerSink, debug)
@@ -170,8 +172,8 @@ func doSubscribeFilerMetaChanges(grpcDialOption grpc.DialOption, sourceFiler, so
 		return setOffset(grpcDialOption, targetFiler, SyncKeyPrefix, sourceFilerSignature, lastTsNs)
 	})
 
-	return pb.FollowMetadata(sourceFiler, grpcDialOption, "syncTo_"+targetFiler,
-		sourcePath, sourceFilerOffsetTsNs, targetFilerSignature, processEventFnWithOffset, false)
+	return pb.FollowMetadata(sourceFiler, grpcDialOption, "syncTo_"+string(targetFiler),
+		sourcePath, nil, sourceFilerOffsetTsNs, targetFilerSignature, processEventFnWithOffset, false)
 
 }
 
@@ -179,7 +181,7 @@ const (
 	SyncKeyPrefix = "sync."
 )
 
-func getOffset(grpcDialOption grpc.DialOption, filer string, signaturePrefix string, signature int32) (lastOffsetTsNs int64, readErr error) {
+func getOffset(grpcDialOption grpc.DialOption, filer pb.ServerAddress, signaturePrefix string, signature int32) (lastOffsetTsNs int64, readErr error) {
 
 	readErr = pb.WithFilerClient(filer, grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
 		syncKey := []byte(signaturePrefix + "____")
@@ -206,7 +208,7 @@ func getOffset(grpcDialOption grpc.DialOption, filer string, signaturePrefix str
 
 }
 
-func setOffset(grpcDialOption grpc.DialOption, filer string, signaturePrefix string, signature int32, offsetTsNs int64) error {
+func setOffset(grpcDialOption grpc.DialOption, filer pb.ServerAddress, signaturePrefix string, signature int32, offsetTsNs int64) error {
 	return pb.WithFilerClient(filer, grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
 
 		syncKey := []byte(signaturePrefix + "____")

weed/command/filer_sync_std.go

@@ -1,3 +1,4 @@
+//go:build !windows
 // +build !windows
 
 package command

weed/command/iam.go

@@ -43,38 +43,35 @@ func runIam(cmd *Command, args []string) bool {
 }
 
 func (iamopt *IamOptions) startIamServer() bool {
-	filerGrpcAddress, err := pb.ParseServerToGrpcAddress(*iamopt.filer)
-	if err != nil {
-		glog.Fatal(err)
-		return false
-	}
+	filerAddress := pb.ServerAddress(*iamopt.filer)
 
 	util.LoadConfiguration("security", false)
 	grpcDialOption := security.LoadClientTLS(util.GetViper(), "grpc.client")
 	for {
-		err = pb.WithGrpcFilerClient(filerGrpcAddress, grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
+		err := pb.WithGrpcFilerClient(filerAddress, grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
 			resp, err := client.GetFilerConfiguration(context.Background(), &filer_pb.GetFilerConfigurationRequest{})
 			if err != nil {
-				return fmt.Errorf("get filer %s configuration: %v", filerGrpcAddress, err)
+				return fmt.Errorf("get filer %s configuration: %v", filerAddress, err)
 			}
 			glog.V(0).Infof("IAM read filer configuration: %s", resp)
 			return nil
 		})
 		if err != nil {
-			glog.V(0).Infof("wait to connect to filer %s grpc address %s", *iamopt.filer, filerGrpcAddress)
+			glog.V(0).Infof("wait to connect to filer %s grpc address %s", *iamopt.filer, filerAddress.ToGrpcAddress())
 			time.Sleep(time.Second)
 		} else {
-			glog.V(0).Infof("connected to filer %s grpc address %s", *iamopt.filer, filerGrpcAddress)
+			glog.V(0).Infof("connected to filer %s grpc address %s", *iamopt.filer, filerAddress.ToGrpcAddress())
 			break
 		}
 	}
 
+	masters := pb.ServerAddresses(*iamopt.masters).ToAddresses()
 	router := mux.NewRouter().SkipClean(true)
 	_, iamApiServer_err := iamapi.NewIamApiServer(router, &iamapi.IamServerOption{
-		Filer:            *iamopt.filer,
-		Port:             *iamopt.port,
-		FilerGrpcAddress: filerGrpcAddress,
-		GrpcDialOption:   grpcDialOption,
+		Masters:        masters,
+		Filer:          filerAddress,
+		Port:           *iamopt.port,
+		GrpcDialOption: grpcDialOption,
 	})
 	glog.V(0).Info("NewIamApiServer created")
 	if iamApiServer_err != nil {

weed/command/imports.go

@@ -3,6 +3,9 @@ package command
 import (
 	_ "net/http/pprof"
 
+	_ "github.com/chrislusf/seaweedfs/weed/remote_storage/azure"
+	_ "github.com/chrislusf/seaweedfs/weed/remote_storage/gcs"
+	_ "github.com/chrislusf/seaweedfs/weed/remote_storage/hdfs"
 	_ "github.com/chrislusf/seaweedfs/weed/remote_storage/s3"
 
 	_ "github.com/chrislusf/seaweedfs/weed/replication/sink/azuresink"
@@ -27,4 +30,5 @@ import (
 	_ "github.com/chrislusf/seaweedfs/weed/filer/redis"
 	_ "github.com/chrislusf/seaweedfs/weed/filer/redis2"
 	_ "github.com/chrislusf/seaweedfs/weed/filer/sqlite"
+	_ "github.com/chrislusf/seaweedfs/weed/filer/tikv"
 )

weed/command/master.go

@@ -7,7 +7,6 @@ import (
 	"net/http"
 	"os"
 	"sort"
-	"strconv"
 	"strings"
 	"time"
 
@@ -28,6 +27,7 @@ var (
 
 type MasterOptions struct {
 	port              *int
+	portGrpc          *int
 	ip                *string
 	ipBind            *string
 	metaFolder        *string
@@ -47,6 +47,7 @@ type MasterOptions struct {
 func init() {
 	cmdMaster.Run = runMaster // break init cycle
 	m.port = cmdMaster.Flag.Int("port", 9333, "http listen port")
+	m.portGrpc = cmdMaster.Flag.Int("port.grpc", 19333, "grpc listen port")
 	m.ip = cmdMaster.Flag.String("ip", util.DetectedHostAddress(), "master <ip>|<server> address, also used as identifier")
 	m.ipBind = cmdMaster.Flag.String("ip.bind", "", "ip address to bind to")
 	m.metaFolder = cmdMaster.Flag.String("mdir", os.TempDir(), "data directory to store meta data")
@@ -112,11 +113,11 @@ func startMaster(masterOption MasterOptions, masterWhiteList []string) {
 
 	backend.LoadConfiguration(util.GetViper())
 
-	myMasterAddress, peers := checkPeers(*masterOption.ip, *masterOption.port, *masterOption.peers)
+	myMasterAddress, peers := checkPeers(*masterOption.ip, *masterOption.port, *masterOption.portGrpc, *masterOption.peers)
 
 	r := mux.NewRouter()
 	ms := weed_server.NewMasterServer(r, masterOption.toMasterOption(masterWhiteList), peers)
-	listeningAddress := *masterOption.ipBind + ":" + strconv.Itoa(*masterOption.port)
+	listeningAddress := util.JoinHostPort(*masterOption.ipBind, *masterOption.port)
 	glog.V(0).Infof("Start Seaweed Master %s at %s", util.Version(), listeningAddress)
 	masterListener, e := util.NewListener(listeningAddress, 0)
 	if e != nil {
@@ -131,8 +132,8 @@ func startMaster(masterOption MasterOptions, masterWhiteList []string) {
 	ms.SetRaftServer(raftServer)
 	r.HandleFunc("/cluster/status", raftServer.StatusHandler).Methods("GET")
 	// starting grpc server
-	grpcPort := *masterOption.port + 10000
-	grpcL, err := util.NewListener(*masterOption.ipBind+":"+strconv.Itoa(grpcPort), 0)
+	grpcPort := *masterOption.portGrpc
+	grpcL, err := util.NewListener(util.JoinHostPort(*masterOption.ipBind, grpcPort), 0)
 	if err != nil {
 		glog.Fatalf("master failed to listen on grpc port %d: %v", grpcPort, err)
 	}
@@ -161,16 +162,14 @@ func startMaster(masterOption MasterOptions, masterWhiteList []string) {
 	select {}
 }
 
-func checkPeers(masterIp string, masterPort int, peers string) (masterAddress string, cleanedPeers []string) {
+func checkPeers(masterIp string, masterPort int, masterGrpcPort int, peers string) (masterAddress pb.ServerAddress, cleanedPeers []pb.ServerAddress) {
 	glog.V(0).Infof("current: %s:%d peers:%s", masterIp, masterPort, peers)
-	masterAddress = masterIp + ":" + strconv.Itoa(masterPort)
-	if peers != "" {
-		cleanedPeers = strings.Split(peers, ",")
-	}
+	masterAddress = pb.NewServerAddress(masterIp, masterPort, masterGrpcPort)
+	cleanedPeers = pb.ServerAddresses(peers).ToAddresses()
 
 	hasSelf := false
 	for _, peer := range cleanedPeers {
-		if peer == masterAddress {
+		if peer.ToHttpAddress() == masterAddress.ToHttpAddress() {
 			hasSelf = true
 			break
 		}
@@ -180,13 +179,15 @@ func checkPeers(masterIp string, masterPort int, peers string) (masterAddress st
 		cleanedPeers = append(cleanedPeers, masterAddress)
 	}
 	if len(cleanedPeers)%2 == 0 {
-		glog.Fatalf("Only odd number of masters are supported!")
+		glog.Fatalf("Only odd number of masters are supported: %+v", cleanedPeers)
 	}
 	return
 }
 
-func isTheFirstOne(self string, peers []string) bool {
-	sort.Strings(peers)
+func isTheFirstOne(self pb.ServerAddress, peers []pb.ServerAddress) bool {
+	sort.Slice(peers, func(i, j int) bool {
+		return strings.Compare(string(peers[i]), string(peers[j])) < 0
+	})
 	if len(peers) <= 0 {
 		return true
 	}
@@ -194,9 +195,9 @@ func isTheFirstOne(self string, peers []string) bool {
 }
 
 func (m *MasterOptions) toMasterOption(whiteList []string) *weed_server.MasterOption {
+	masterAddress := pb.NewServerAddress(*m.ip, *m.port, *m.portGrpc)
 	return &weed_server.MasterOption{
-		Host:              *m.ip,
-		Port:              *m.port,
+		Master:            masterAddress,
 		MetaFolder:        *m.metaFolder,
 		VolumeSizeLimitMB: uint32(*m.volumeSizeLimitMB),
 		VolumePreallocate: *m.volumePreallocate,

weed/command/master_follower.go

@@ -13,8 +13,6 @@ import (
 	"github.com/gorilla/mux"
 	"google.golang.org/grpc/reflection"
 	"net/http"
-	"strconv"
-	"strings"
 	"time"
 )
 
@@ -25,6 +23,7 @@ var (
 func init() {
 	cmdMasterFollower.Run = runMasterFollower // break init cycle
 	mf.port = cmdMasterFollower.Flag.Int("port", 9334, "http listen port")
+	mf.portGrpc = cmdMasterFollower.Flag.Int("port.grpc", 19334, "grpc listen port")
 	mf.ipBind = cmdMasterFollower.Flag.String("ip.bind", "", "ip address to bind to")
 	mf.peers = cmdMasterFollower.Flag.String("masters", "localhost:9333", "all master nodes in comma separated ip:port list, example: 127.0.0.1:9093,127.0.0.1:9094,127.0.0.1:9095")
 
@@ -79,19 +78,15 @@ func runMasterFollower(cmd *Command, args []string) bool {
 func startMasterFollower(masterOptions MasterOptions) {
 
 	// collect settings from main masters
-	masters := strings.Split(*mf.peers, ",")
-	masterGrpcAddresses, err := pb.ParseServersToGrpcAddresses(masters)
-	if err != nil {
-		glog.V(0).Infof("ParseFilerGrpcAddress: %v", err)
-		return
-	}
+	masters := pb.ServerAddresses(*mf.peers).ToAddresses()
 
+	var err error
 	grpcDialOption := security.LoadClientTLS(util.GetViper(), "grpc.master")
 	for i := 0; i < 10; i++ {
-		err = pb.WithOneOfGrpcMasterClients(masterGrpcAddresses, grpcDialOption, func(client master_pb.SeaweedClient) error {
+		err = pb.WithOneOfGrpcMasterClients(masters, grpcDialOption, func(client master_pb.SeaweedClient) error {
 			resp, err := client.GetMasterConfiguration(context.Background(), &master_pb.GetMasterConfigurationRequest{})
 			if err != nil {
-				return fmt.Errorf("get master grpc address %v configuration: %v", masterGrpcAddresses, err)
+				return fmt.Errorf("get master grpc address %v configuration: %v", masters, err)
 			}
 			masterOptions.defaultReplication = &resp.DefaultReplication
 			masterOptions.volumeSizeLimitMB = aws.Uint(uint(resp.VolumeSizeLimitMB))
@@ -99,13 +94,13 @@ func startMasterFollower(masterOptions MasterOptions) {
 			return nil
 		})
 		if err != nil {
-			glog.V(0).Infof("failed to talk to filer %v: %v", masterGrpcAddresses, err)
+			glog.V(0).Infof("failed to talk to filer %v: %v", masters, err)
 			glog.V(0).Infof("wait for %d seconds ...", i+1)
 			time.Sleep(time.Duration(i+1) * time.Second)
 		}
 	}
 	if err != nil {
-		glog.Errorf("failed to talk to filer %v: %v", masterGrpcAddresses, err)
+		glog.Errorf("failed to talk to filer %v: %v", masters, err)
 		return
 	}
 
@@ -114,7 +109,7 @@ func startMasterFollower(masterOptions MasterOptions) {
 
 	r := mux.NewRouter()
 	ms := weed_server.NewMasterServer(r, option, masters)
-	listeningAddress := *masterOptions.ipBind + ":" + strconv.Itoa(*masterOptions.port)
+	listeningAddress := util.JoinHostPort(*masterOptions.ipBind, *masterOptions.port)
 	glog.V(0).Infof("Start Seaweed Master %s at %s", util.Version(), listeningAddress)
 	masterListener, e := util.NewListener(listeningAddress, 0)
 	if e != nil {
@@ -122,8 +117,8 @@ func startMasterFollower(masterOptions MasterOptions) {
 	}
 
 	// starting grpc server
-	grpcPort := *masterOptions.port + 10000
-	grpcL, err := util.NewListener(*masterOptions.ipBind+":"+strconv.Itoa(grpcPort), 0)
+	grpcPort := *masterOptions.portGrpc
+	grpcL, err := util.NewListener(util.JoinHostPort(*masterOptions.ipBind, grpcPort), 0)
 	if err != nil {
 		glog.Fatalf("master failed to listen on grpc port %d: %v", grpcPort, err)
 	}

weed/command/mount_notsupported.go

@@ -1,6 +1,5 @@
-// +build !linux
-// +build !darwin
-// +build !freebsd
+//go:build !linux && !darwin && !freebsd
+// +build !linux,!darwin,!freebsd
 
 package command
 

weed/command/mount_std.go

@@ -1,3 +1,4 @@
+//go:build linux || darwin || freebsd
 // +build linux darwin freebsd
 
 package command
@@ -69,35 +70,30 @@ func getParentInode(mountDir string) (uint64, error) {
 
 func RunMount(option *MountOptions, umask os.FileMode) bool {
 
-	filers := strings.Split(*option.filer, ",")
-	// parse filer grpc address
-	filerGrpcAddresses, err := pb.ParseServersToGrpcAddresses(filers)
-	if err != nil {
-		glog.V(0).Infof("ParseFilerGrpcAddress: %v", err)
-		return true
-	}
+	filerAddresses := pb.ServerAddresses(*option.filer).ToAddresses()
 
 	util.LoadConfiguration("security", false)
 	// try to connect to filer, filerBucketsPath may be useful later
 	grpcDialOption := security.LoadClientTLS(util.GetViper(), "grpc.client")
 	var cipher bool
+	var err error
 	for i := 0; i < 10; i++ {
-		err = pb.WithOneOfGrpcFilerClients(filerGrpcAddresses, grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
+		err = pb.WithOneOfGrpcFilerClients(filerAddresses, grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
 			resp, err := client.GetFilerConfiguration(context.Background(), &filer_pb.GetFilerConfigurationRequest{})
 			if err != nil {
-				return fmt.Errorf("get filer grpc address %v configuration: %v", filerGrpcAddresses, err)
+				return fmt.Errorf("get filer grpc address %v configuration: %v", filerAddresses, err)
 			}
 			cipher = resp.Cipher
 			return nil
 		})
 		if err != nil {
-			glog.V(0).Infof("failed to talk to filer %v: %v", filerGrpcAddresses, err)
+			glog.V(0).Infof("failed to talk to filer %v: %v", filerAddresses, err)
 			glog.V(0).Infof("wait for %d seconds ...", i+1)
 			time.Sleep(time.Duration(i+1) * time.Second)
 		}
 	}
 	if err != nil {
-		glog.Errorf("failed to talk to filer %v: %v", filerGrpcAddresses, err)
+		glog.Errorf("failed to talk to filer %v: %v", filerAddresses, err)
 		return true
 	}
 
@@ -205,8 +201,7 @@ func RunMount(option *MountOptions, umask os.FileMode) bool {
 
 	seaweedFileSystem := filesys.NewSeaweedFileSystem(&filesys.Option{
 		MountDirectory:     dir,
-		FilerAddresses:     filers,
-		FilerGrpcAddresses: filerGrpcAddresses,
+		FilerAddresses:     filerAddresses,
 		GrpcDialOption:     grpcDialOption,
 		FilerMountRootPath: mountRoot,
 		Collection:         *option.collection,

weed/command/msg_broker.go

@@ -3,7 +3,6 @@ package command
 import (
 	"context"
 	"fmt"
-	"strconv"
 	"time"
 
 	"google.golang.org/grpc/reflection"
@@ -63,35 +62,31 @@ func (msgBrokerOpt *MessageBrokerOptions) startQueueServer() bool {
 
 	grace.SetupProfiling(*messageBrokerStandaloneOptions.cpuprofile, *messageBrokerStandaloneOptions.memprofile)
 
-	filerGrpcAddress, err := pb.ParseServerToGrpcAddress(*msgBrokerOpt.filer)
-	if err != nil {
-		glog.Fatal(err)
-		return false
-	}
+	filerAddress := pb.ServerAddress(*msgBrokerOpt.filer)
 
 	grpcDialOption := security.LoadClientTLS(util.GetViper(), "grpc.msg_broker")
 	cipher := false
 
 	for {
-		err = pb.WithGrpcFilerClient(filerGrpcAddress, grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
+		err := pb.WithGrpcFilerClient(filerAddress, grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
 			resp, err := client.GetFilerConfiguration(context.Background(), &filer_pb.GetFilerConfigurationRequest{})
 			if err != nil {
-				return fmt.Errorf("get filer %s configuration: %v", filerGrpcAddress, err)
+				return fmt.Errorf("get filer %s configuration: %v", filerAddress, err)
 			}
 			cipher = resp.Cipher
 			return nil
 		})
 		if err != nil {
-			glog.V(0).Infof("wait to connect to filer %s grpc address %s", *msgBrokerOpt.filer, filerGrpcAddress)
+			glog.V(0).Infof("wait to connect to filer %s grpc address %s", *msgBrokerOpt.filer, filerAddress.ToGrpcAddress())
 			time.Sleep(time.Second)
 		} else {
-			glog.V(0).Infof("connected to filer %s grpc address %s", *msgBrokerOpt.filer, filerGrpcAddress)
+			glog.V(0).Infof("connected to filer %s grpc address %s", *msgBrokerOpt.filer, filerAddress.ToGrpcAddress())
 			break
 		}
 	}
 
 	qs, err := broker.NewMessageBroker(&broker.MessageBrokerOption{
-		Filers:             []string{*msgBrokerOpt.filer},
+		Filers:             []pb.ServerAddress{filerAddress},
 		DefaultReplication: "",
 		MaxMB:              0,
 		Ip:                 *msgBrokerOpt.ip,
@@ -100,7 +95,7 @@ func (msgBrokerOpt *MessageBrokerOptions) startQueueServer() bool {
 	}, grpcDialOption)
 
 	// start grpc listener
-	grpcL, err := util.NewListener(":"+strconv.Itoa(*msgBrokerOpt.port), 0)
+	grpcL, err := util.NewListener(util.JoinHostPort("", *msgBrokerOpt.port), 0)
 	if err != nil {
 		glog.Fatalf("failed to listen on grpc port %d: %v", *msgBrokerOpt.port, err)
 	}

weed/command/s3.go

@@ -137,11 +137,7 @@ func runS3(cmd *Command, args []string) bool {
 
 func (s3opt *S3Options) startS3Server() bool {
 
-	filerGrpcAddress, err := pb.ParseServerToGrpcAddress(*s3opt.filer)
-	if err != nil {
-		glog.Fatal(err)
-		return false
-	}
+	filerAddress := pb.ServerAddress(*s3opt.filer)
 
 	filerBucketsPath := "/buckets"
 
@@ -152,10 +148,10 @@ func (s3opt *S3Options) startS3Server() bool {
 	var metricsIntervalSec int
 
 	for {
-		err = pb.WithGrpcFilerClient(filerGrpcAddress, grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
+		err := pb.WithGrpcFilerClient(filerAddress, grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
 			resp, err := client.GetFilerConfiguration(context.Background(), &filer_pb.GetFilerConfigurationRequest{})
 			if err != nil {
-				return fmt.Errorf("get filer %s configuration: %v", filerGrpcAddress, err)
+				return fmt.Errorf("get filer %s configuration: %v", filerAddress, err)
 			}
 			filerBucketsPath = resp.DirBuckets
 			metricsAddress, metricsIntervalSec = resp.MetricsAddress, int(resp.MetricsIntervalSec)
@@ -163,10 +159,10 @@ func (s3opt *S3Options) startS3Server() bool {
 			return nil
 		})
 		if err != nil {
-			glog.V(0).Infof("wait to connect to filer %s grpc address %s", *s3opt.filer, filerGrpcAddress)
+			glog.V(0).Infof("wait to connect to filer %s grpc address %s", *s3opt.filer, filerAddress.ToGrpcAddress())
 			time.Sleep(time.Second)
 		} else {
-			glog.V(0).Infof("connected to filer %s grpc address %s", *s3opt.filer, filerGrpcAddress)
+			glog.V(0).Infof("connected to filer %s grpc address %s", *s3opt.filer, filerAddress.ToGrpcAddress())
 			break
 		}
 	}
@@ -176,9 +172,8 @@ func (s3opt *S3Options) startS3Server() bool {
 	router := mux.NewRouter().SkipClean(true)
 
 	_, s3ApiServer_err := s3api.NewS3ApiServer(router, &s3api.S3ApiServerOption{
-		Filer:            *s3opt.filer,
+		Filer:            filerAddress,
 		Port:             *s3opt.port,
-		FilerGrpcAddress: filerGrpcAddress,
 		Config:           *s3opt.config,
 		DomainName:       *s3opt.domainName,
 		BucketsPath:      filerBucketsPath,

weed/command/scaffold/filer.toml

@@ -44,7 +44,7 @@ dbFile = "./filer.db"                # sqlite db file
 # CREATE TABLE IF NOT EXISTS filemeta (
 #   dirhash     BIGINT               COMMENT 'first 64 bits of MD5 hash value of directory field',
 #   name        VARCHAR(1000) BINARY COMMENT 'directory or file name',
-#   directory   TEXT                 COMMENT 'full path to parent directory',
+#   directory   TEXT BINARY          COMMENT 'full path to parent directory',
 #   meta        LONGBLOB,
 #   PRIMARY KEY (dirhash, name)
 # ) DEFAULT CHARSET=utf8;
@@ -69,7 +69,7 @@ createTable = """
   CREATE TABLE IF NOT EXISTS ` + "`%s`" + ` (
     dirhash BIGINT,
     name VARCHAR(1000) BINARY,
-    directory TEXT,
+    directory TEXT BINARY,
     meta LONGBLOB,
     PRIMARY KEY (dirhash, name)
   ) DEFAULT CHARSET=utf8;
@@ -230,3 +230,11 @@ location = "/tmp/"
 address = "localhost:6379"
 password = ""
 database = 1
+
+[tikv]
+enabled = false
+# If you have many pd address, use ',' split then:
+#   pdaddrs = "pdhost1:2379, pdhost2:2379, pdhost3:2379"
+pdaddrs = "localhost:2379"
+# Concurrency for TiKV delete range
+deleterange_concurrency = 1

weed/command/server.go

@@ -2,6 +2,7 @@ package command
 
 import (
 	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/pb"
 	"github.com/chrislusf/seaweedfs/weed/util/grace"
 	"net/http"
 	"os"
@@ -85,6 +86,7 @@ func init() {
 	serverOptions.debugPort = cmdServer.Flag.Int("debug.port", 6060, "http port for debugging")
 
 	masterOptions.port = cmdServer.Flag.Int("master.port", 9333, "master server http listen port")
+	masterOptions.portGrpc = cmdServer.Flag.Int("master.port.grpc", 19333, "master server grpc listen port")
 	masterOptions.metaFolder = cmdServer.Flag.String("master.dir", "", "data directory to store meta data, default to same as -dir specified")
 	masterOptions.peers = cmdServer.Flag.String("master.peers", "", "all master nodes in comma separated ip:masterPort list")
 	masterOptions.volumeSizeLimitMB = cmdServer.Flag.Uint("master.volumeSizeLimitMB", 30*1000, "Master stops directing writes to oversized volumes.")
@@ -97,6 +99,7 @@ func init() {
 
 	filerOptions.collection = cmdServer.Flag.String("filer.collection", "", "all data will be stored in this collection")
 	filerOptions.port = cmdServer.Flag.Int("filer.port", 8888, "filer server http listen port")
+	filerOptions.portGrpc = cmdServer.Flag.Int("filer.port.grpc", 18888, "filer server grpc listen port")
 	filerOptions.publicPort = cmdServer.Flag.Int("filer.port.public", 0, "filer server public http listen port")
 	filerOptions.defaultReplicaPlacement = cmdServer.Flag.String("filer.defaultReplicaPlacement", "", "default replication type. If not specified, use master setting.")
 	filerOptions.disableDirListing = cmdServer.Flag.Bool("filer.disableDirListing", false, "turn off directory listing")
@@ -108,6 +111,7 @@ func init() {
 	filerOptions.concurrentUploadLimitMB = cmdServer.Flag.Int("filer.concurrentUploadLimitMB", 64, "limit total concurrent upload size")
 
 	serverOptions.v.port = cmdServer.Flag.Int("volume.port", 8080, "volume server http listen port")
+	serverOptions.v.portGrpc = cmdServer.Flag.Int("volume.port.grpc", 18080, "volume server grpc listen port")
 	serverOptions.v.publicPort = cmdServer.Flag.Int("volume.port.public", 0, "volume server public port")
 	serverOptions.v.indexType = cmdServer.Flag.String("volume.index", "memory", "Choose [memory|leveldb|leveldbMedium|leveldbLarge] mode for memory~performance balance.")
 	serverOptions.v.diskType = cmdServer.Flag.String("volume.disk", "", "[hdd|ssd|<tag>] hard drive or solid state drive or any tag")
@@ -164,21 +168,16 @@ func runServer(cmd *Command, args []string) bool {
 		*isStartingFiler = true
 	}
 
-	if *isStartingMasterServer {
-		_, peerList := checkPeers(*serverIp, *masterOptions.port, *masterOptions.peers)
-		peers := strings.Join(peerList, ",")
-		masterOptions.peers = &peers
-	}
-
 	// ip address
 	masterOptions.ip = serverIp
 	masterOptions.ipBind = serverBindIp
-	filerOptions.masters = masterOptions.peers
+	_, masters := checkPeers(*masterOptions.ip, *masterOptions.port, *masterOptions.portGrpc, *masterOptions.peers)
+	filerOptions.masters = masters
 	filerOptions.ip = serverIp
 	filerOptions.bindIp = serverBindIp
 	serverOptions.v.ip = serverIp
 	serverOptions.v.bindIp = serverBindIp
-	serverOptions.v.masters = masterOptions.peers
+	serverOptions.v.masters = masters
 	serverOptions.v.idleConnectionTimeout = serverTimeout
 	serverOptions.v.dataCenter = serverDataCenter
 	serverOptions.v.rack = serverRack
@@ -194,7 +193,7 @@ func runServer(cmd *Command, args []string) bool {
 	filerOptions.disableHttp = serverDisableHttp
 	masterOptions.disableHttp = serverDisableHttp
 
-	filerAddress := fmt.Sprintf("%s:%d", *serverIp, *filerOptions.port)
+	filerAddress := string(pb.NewServerAddress(*serverIp, *filerOptions.port, *filerOptions.portGrpc))
 	s3Options.filer = &filerAddress
 	webdavOptions.filer = &filerAddress
 	msgBrokerOptions.filer = &filerAddress

weed/command/shell.go

@@ -2,6 +2,7 @@ package command
 
 import (
 	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/pb"
 
 	"github.com/chrislusf/seaweedfs/weed/security"
 	"github.com/chrislusf/seaweedfs/weed/shell"
@@ -53,13 +54,7 @@ func runShell(command *Command, args []string) bool {
 
 	fmt.Printf("master: %s filer: %s\n", *shellOptions.Masters, *shellInitialFiler)
 
-	var err error
-	shellOptions.FilerHost, shellOptions.FilerPort, err = util.ParseHostPort(*shellInitialFiler)
-	shellOptions.FilerAddress = *shellInitialFiler
-	if err != nil {
-		fmt.Printf("failed to parse filer %s: %v\n", *shellInitialFiler, err)
-		return false
-	}
+	shellOptions.FilerAddress = pb.ServerAddress(*shellInitialFiler)
 	shellOptions.Directory = "/"
 
 	shell.RunShell(shellOptions)

weed/command/upload.go

@@ -71,7 +71,7 @@ func runUpload(cmd *Command, args []string) bool {
 	util.LoadConfiguration("security", false)
 	grpcDialOption := security.LoadClientTLS(util.GetViper(), "grpc.client")
 
-	defaultReplication, err := readMasterConfiguration(grpcDialOption, *upload.master)
+	defaultReplication, err := readMasterConfiguration(grpcDialOption, pb.ServerAddress(*upload.master))
 	if err != nil {
 		fmt.Printf("upload: %v", err)
 		return false
@@ -96,7 +96,7 @@ func runUpload(cmd *Command, args []string) bool {
 					if e != nil {
 						return e
 					}
-					results, e := operation.SubmitFiles(func() string { return *upload.master }, grpcDialOption, parts, *upload.replication, *upload.collection, *upload.dataCenter, *upload.ttl, *upload.diskType, *upload.maxMB, *upload.usePublicUrl)
+					results, e := operation.SubmitFiles(func() pb.ServerAddress { return pb.ServerAddress(*upload.master) }, grpcDialOption, parts, *upload.replication, *upload.collection, *upload.dataCenter, *upload.ttl, *upload.diskType, *upload.maxMB, *upload.usePublicUrl)
 					bytes, _ := json.Marshal(results)
 					fmt.Println(string(bytes))
 					if e != nil {
@@ -118,7 +118,7 @@ func runUpload(cmd *Command, args []string) bool {
 			fmt.Println(e.Error())
 			return false
 		}
-		results, err := operation.SubmitFiles(func() string { return *upload.master }, grpcDialOption, parts, *upload.replication, *upload.collection, *upload.dataCenter, *upload.ttl, *upload.diskType, *upload.maxMB, *upload.usePublicUrl)
+		results, err := operation.SubmitFiles(func() pb.ServerAddress { return pb.ServerAddress(*upload.master) }, grpcDialOption, parts, *upload.replication, *upload.collection, *upload.dataCenter, *upload.ttl, *upload.diskType, *upload.maxMB, *upload.usePublicUrl)
 		if err != nil {
 			fmt.Println(err.Error())
 			return false
@@ -129,7 +129,7 @@ func runUpload(cmd *Command, args []string) bool {
 	return true
 }
 
-func readMasterConfiguration(grpcDialOption grpc.DialOption, masterAddress string) (replication string, err error) {
+func readMasterConfiguration(grpcDialOption grpc.DialOption, masterAddress pb.ServerAddress) (replication string, err error) {
 	err = pb.WithMasterClient(masterAddress, grpcDialOption, func(client master_pb.SeaweedClient) error {
 		resp, err := client.GetMasterConfiguration(context.Background(), &master_pb.GetMasterConfigurationRequest{})
 		if err != nil {

weed/command/volume.go

@@ -36,6 +36,7 @@ var (
 
 type VolumeServerOptions struct {
 	port                      *int
+	portGrpc                  *int
 	publicPort                *int
 	folders                   []string
 	folderMaxLimits           []int
@@ -43,7 +44,8 @@ type VolumeServerOptions struct {
 	ip                        *string
 	publicUrl                 *string
 	bindIp                    *string
-	masters                   *string
+	mastersString             *string
+	masters                   []pb.ServerAddress
 	idleConnectionTimeout     *int
 	dataCenter                *string
 	rack                      *string
@@ -68,11 +70,12 @@ type VolumeServerOptions struct {
 func init() {
 	cmdVolume.Run = runVolume // break init cycle
 	v.port = cmdVolume.Flag.Int("port", 8080, "http listen port")
+	v.portGrpc = cmdVolume.Flag.Int("port.grpc", 18080, "grpc listen port")
 	v.publicPort = cmdVolume.Flag.Int("port.public", 0, "port opened to public")
 	v.ip = cmdVolume.Flag.String("ip", util.DetectedHostAddress(), "ip or server name, also used as identifier")
 	v.publicUrl = cmdVolume.Flag.String("publicUrl", "", "Publicly accessible address")
 	v.bindIp = cmdVolume.Flag.String("ip.bind", "", "ip address to bind to")
-	v.masters = cmdVolume.Flag.String("mserver", "localhost:9333", "comma-separated master servers")
+	v.mastersString = cmdVolume.Flag.String("mserver", "localhost:9333", "comma-separated master servers")
 	v.preStopSeconds = cmdVolume.Flag.Int("preStopSeconds", 10, "number of seconds between stop send heartbeats and stop volume server")
 	// v.pulseSeconds = cmdVolume.Flag.Int("pulseSeconds", 5, "number of seconds between heartbeats, must be smaller than or equal to the master's setting")
 	v.idleConnectionTimeout = cmdVolume.Flag.Int("idleTimeout", 30, "connection idle seconds")
@@ -123,6 +126,7 @@ func runVolume(cmd *Command, args []string) bool {
 	go stats_collect.StartMetricsServer(*v.metricsHttpPort)
 
 	minFreeSpaces := util.MustParseMinFreeSpace(*minFreeSpace, *minFreeSpacePercent)
+	v.masters = pb.ServerAddresses(*v.mastersString).ToAddresses()
 	v.startVolumeServer(*volumeFolders, *maxVolumeCounts, *volumeWhiteListOption, minFreeSpaces)
 
 	return true
@@ -194,7 +198,7 @@ func (v VolumeServerOptions) startVolumeServer(volumeFolders, maxVolumeCounts, v
 		*v.publicPort = *v.port
 	}
 	if *v.publicUrl == "" {
-		*v.publicUrl = *v.ip + ":" + strconv.Itoa(*v.publicPort)
+		*v.publicUrl = util.JoinHostPort(*v.ip, *v.publicPort)
 	}
 
 	volumeMux := http.NewServeMux()
@@ -221,14 +225,12 @@ func (v VolumeServerOptions) startVolumeServer(volumeFolders, maxVolumeCounts, v
 		volumeNeedleMapKind = storage.NeedleMapLevelDbLarge
 	}
 
-	masters := *v.masters
-
 	volumeServer := weed_server.NewVolumeServer(volumeMux, publicVolumeMux,
-		*v.ip, *v.port, *v.publicUrl,
+		*v.ip, *v.port, *v.portGrpc, *v.publicUrl,
 		v.folders, v.folderMaxLimits, minFreeSpaces, diskTypes,
 		*v.idxFolder,
 		volumeNeedleMapKind,
-		strings.Split(masters, ","), 5, *v.dataCenter, *v.rack,
+		v.masters, 5, *v.dataCenter, *v.rack,
 		v.whiteList,
 		*v.fixJpgOrientation, *v.readMode,
 		*v.compactionMBPerSecond,
@@ -307,8 +309,8 @@ func (v VolumeServerOptions) isSeparatedPublicPort() bool {
 }
 
 func (v VolumeServerOptions) startGrpcService(vs volume_server_pb.VolumeServerServer) *grpc.Server {
-	grpcPort := *v.port + 10000
-	grpcL, err := util.NewListener(*v.bindIp+":"+strconv.Itoa(grpcPort), 0)
+	grpcPort := *v.portGrpc
+	grpcL, err := util.NewListener(util.JoinHostPort(*v.bindIp, grpcPort), 0)
 	if err != nil {
 		glog.Fatalf("failed to listen on grpc port %d: %v", grpcPort, err)
 	}
@@ -324,7 +326,7 @@ func (v VolumeServerOptions) startGrpcService(vs volume_server_pb.VolumeServerSe
 }
 
 func (v VolumeServerOptions) startPublicHttpService(handler http.Handler) httpdown.Server {
-	publicListeningAddress := *v.bindIp + ":" + strconv.Itoa(*v.publicPort)
+	publicListeningAddress := util.JoinHostPort(*v.bindIp, *v.publicPort)
 	glog.V(0).Infoln("Start Seaweed volume server", util.Version(), "public at", publicListeningAddress)
 	publicListener, e := util.NewListener(publicListeningAddress, time.Duration(*v.idleConnectionTimeout)*time.Second)
 	if e != nil {
@@ -351,7 +353,7 @@ func (v VolumeServerOptions) startClusterHttpService(handler http.Handler) httpd
 		keyFile = viper.GetString("https.volume.key")
 	}
 
-	listeningAddress := *v.bindIp + ":" + strconv.Itoa(*v.port)
+	listeningAddress := util.JoinHostPort(*v.bindIp, *v.port)
 	glog.V(0).Infof("Start Seaweed volume server %s at %s", util.Version(), listeningAddress)
 	listener, e := util.NewListener(listeningAddress, time.Duration(*v.idleConnectionTimeout)*time.Second)
 	if e != nil {
@@ -373,7 +375,7 @@ func (v VolumeServerOptions) startClusterHttpService(handler http.Handler) httpd
 }
 
 func (v VolumeServerOptions) startTcpService(volumeServer *weed_server.VolumeServer) {
-	listeningAddress := *v.bindIp + ":" + strconv.Itoa(*v.port+20000)
+	listeningAddress := util.JoinHostPort(*v.bindIp, *v.port+20000)
 	glog.V(0).Infoln("Start Seaweed volume server", util.Version(), "tcp at", listeningAddress)
 	listener, e := util.NewListener(listeningAddress, 0)
 	if e != nil {

weed/command/webdav.go

@@ -78,46 +78,41 @@ func (wo *WebDavOption) startWebDav() bool {
 	}
 
 	// parse filer grpc address
-	filerGrpcAddress, err := pb.ParseServerToGrpcAddress(*wo.filer)
-	if err != nil {
-		glog.Fatal(err)
-		return false
-	}
+	filerAddress := pb.ServerAddress(*wo.filer)
 
 	grpcDialOption := security.LoadClientTLS(util.GetViper(), "grpc.client")
 
 	var cipher bool
 	// connect to filer
 	for {
-		err = pb.WithGrpcFilerClient(filerGrpcAddress, grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
+		err := pb.WithGrpcFilerClient(filerAddress, grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
 			resp, err := client.GetFilerConfiguration(context.Background(), &filer_pb.GetFilerConfigurationRequest{})
 			if err != nil {
-				return fmt.Errorf("get filer %s configuration: %v", filerGrpcAddress, err)
+				return fmt.Errorf("get filer %s configuration: %v", filerAddress, err)
 			}
 			cipher = resp.Cipher
 			return nil
 		})
 		if err != nil {
-			glog.V(0).Infof("wait to connect to filer %s grpc address %s", *wo.filer, filerGrpcAddress)
+			glog.V(0).Infof("wait to connect to filer %s grpc address %s", *wo.filer, filerAddress.ToGrpcAddress())
 			time.Sleep(time.Second)
 		} else {
-			glog.V(0).Infof("connected to filer %s grpc address %s", *wo.filer, filerGrpcAddress)
+			glog.V(0).Infof("connected to filer %s grpc address %s", *wo.filer, filerAddress.ToGrpcAddress())
 			break
 		}
 	}
 
 	ws, webdavServer_err := weed_server.NewWebDavServer(&weed_server.WebDavOption{
-		Filer:            *wo.filer,
-		FilerGrpcAddress: filerGrpcAddress,
-		GrpcDialOption:   grpcDialOption,
-		Collection:       *wo.collection,
-		Replication:      *wo.replication,
-		DiskType:         *wo.disk,
-		Uid:              uid,
-		Gid:              gid,
-		Cipher:           cipher,
-		CacheDir:         util.ResolvePath(*wo.cacheDir),
-		CacheSizeMB:      *wo.cacheSizeMB,
+		Filer:          filerAddress,
+		GrpcDialOption: grpcDialOption,
+		Collection:     *wo.collection,
+		Replication:    *wo.replication,
+		DiskType:       *wo.disk,
+		Uid:            uid,
+		Gid:            gid,
+		Cipher:         cipher,
+		CacheDir:       util.ResolvePath(*wo.cacheDir),
+		CacheSizeMB:    *wo.cacheSizeMB,
 	})
 	if webdavServer_err != nil {
 		glog.Fatalf("WebDav Server startup error: %v", webdavServer_err)

weed/filer/etcd/etcd_store.go

@@ -7,7 +7,7 @@ import (
 	"strings"
 	"time"
 
-	"go.etcd.io/etcd/clientv3"
+	"go.etcd.io/etcd/client/v3"
 
 	"github.com/chrislusf/seaweedfs/weed/filer"
 	"github.com/chrislusf/seaweedfs/weed/glog"

weed/filer/filechunk_manifest.go

@@ -6,6 +6,8 @@ import (
 	"github.com/chrislusf/seaweedfs/weed/wdclient"
 	"io"
 	"math"
+	"net/url"
+	"strings"
 	"time"
 
 	"github.com/golang/protobuf/proto"
@@ -108,6 +110,9 @@ func retriedFetchChunkData(urlStrings []string, cipherKey []byte, isGzipped bool
 	for waitTime := time.Second; waitTime < util.RetryWaitTime; waitTime += waitTime / 2 {
 		for _, urlString := range urlStrings {
 			receivedData = receivedData[:0]
+			if strings.Contains(urlString, "%") {
+				urlString = url.PathEscape(urlString)
+			}
 			shouldRetry, err = util.ReadUrlAsStream(urlString+"?readDeleted=true", cipherKey, isGzipped, isFullChunk, offset, size, func(data []byte) {
 				receivedData = append(receivedData, data...)
 			})

weed/filer/filer.go

@@ -3,6 +3,7 @@ package filer
 import (
 	"context"
 	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/pb"
 	"os"
 	"strings"
 	"time"
@@ -45,10 +46,10 @@ type Filer struct {
 	RemoteStorage       *FilerRemoteStorage
 }
 
-func NewFiler(masters []string, grpcDialOption grpc.DialOption,
-	filerHost string, filerGrpcPort uint32, collection string, replication string, dataCenter string, notifyFn func()) *Filer {
+func NewFiler(masters []pb.ServerAddress, grpcDialOption grpc.DialOption,
+	filerHost pb.ServerAddress, collection string, replication string, dataCenter string, notifyFn func()) *Filer {
 	f := &Filer{
-		MasterClient:        wdclient.NewMasterClient(grpcDialOption, "filer", filerHost, filerGrpcPort, dataCenter, masters),
+		MasterClient:        wdclient.NewMasterClient(grpcDialOption, "filer", filerHost, dataCenter, masters),
 		fileIdDeletionQueue: util.NewUnboundedQueue(),
 		GrpcDialOption:      grpcDialOption,
 		FilerConf:           NewFilerConf(),
@@ -63,7 +64,7 @@ func NewFiler(masters []string, grpcDialOption grpc.DialOption,
 	return f
 }
 
-func (f *Filer) AggregateFromPeers(self string, filers []string) {
+func (f *Filer) AggregateFromPeers(self pb.ServerAddress, filers []pb.ServerAddress) {
 
 	// set peers
 	found := false
@@ -110,7 +111,7 @@ func (f *Filer) GetStore() (store FilerStore) {
 	return f.Store
 }
 
-func (fs *Filer) GetMaster() string {
+func (fs *Filer) GetMaster() pb.ServerAddress {
 	return fs.MasterClient.GetMaster()
 }
 

weed/filer/filer_notify_append.go

@@ -66,7 +66,16 @@ func (f *Filer) assignAndUpload(targetFile string, data []byte) (*operation.Assi
 
 	// upload data
 	targetUrl := "http://" + assignResult.Url + "/" + assignResult.Fid
-	uploadResult, err := operation.UploadData(targetUrl, "", f.Cipher, data, false, "", nil, assignResult.Auth)
+	uploadOption := &operation.UploadOption{
+		UploadUrl:         targetUrl,
+		Filename:          "",
+		Cipher:            f.Cipher,
+		IsInputCompressed: false,
+		MimeType:          "",
+		PairMap:           nil,
+		Jwt:               assignResult.Auth,
+	}
+	uploadResult, err := operation.UploadData(data, uploadOption)
 	if err != nil {
 		return nil, nil, fmt.Errorf("upload data %s: %v", targetUrl, err)
 	}

weed/filer/leveldb/leveldb_store.go

@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"github.com/syndtr/goleveldb/leveldb"
 	leveldb_errors "github.com/syndtr/goleveldb/leveldb/errors"
+	"github.com/syndtr/goleveldb/leveldb/filter"
 	"github.com/syndtr/goleveldb/leveldb/opt"
 	leveldb_util "github.com/syndtr/goleveldb/leveldb/util"
 	"os"
@@ -45,9 +46,9 @@ func (store *LevelDBStore) initialize(dir string) (err error) {
 	}
 
 	opts := &opt.Options{
-		BlockCacheCapacity:            32 * 1024 * 1024, // default value is 8MiB
-		WriteBuffer:                   16 * 1024 * 1024, // default value is 4MiB
-		CompactionTableSizeMultiplier: 10,
+		BlockCacheCapacity: 32 * 1024 * 1024,         // default value is 8MiB
+		WriteBuffer:        16 * 1024 * 1024,         // default value is 4MiB
+		Filter:             filter.NewBloomFilter(8), // false positive rate 0.02
 	}
 
 	if store.db, err = leveldb.OpenFile(dir, opts); err != nil {

weed/filer/leveldb/leveldb_store_test.go

@@ -13,7 +13,7 @@ import (
 )
 
 func TestCreateAndFind(t *testing.T) {
-	testFiler := filer.NewFiler(nil, nil, "", 0, "", "", "", nil)
+	testFiler := filer.NewFiler(nil, nil, "", "", "", "", nil)
 	dir, _ := ioutil.TempDir("", "seaweedfs_filer_test")
 	defer os.RemoveAll(dir)
 	store := &LevelDBStore{}
@@ -67,7 +67,7 @@ func TestCreateAndFind(t *testing.T) {
 }
 
 func TestEmptyRoot(t *testing.T) {
-	testFiler := filer.NewFiler(nil, nil, "", 0, "", "", "", nil)
+	testFiler := filer.NewFiler(nil, nil, "", "", "", "", nil)
 	dir, _ := ioutil.TempDir("", "seaweedfs_filer_test2")
 	defer os.RemoveAll(dir)
 	store := &LevelDBStore{}
@@ -90,7 +90,7 @@ func TestEmptyRoot(t *testing.T) {
 }
 
 func BenchmarkInsertEntry(b *testing.B) {
-	testFiler := filer.NewFiler(nil, nil, "", 0, "", "", "", nil)
+	testFiler := filer.NewFiler(nil, nil, "", "", "", "", nil)
 	dir, _ := ioutil.TempDir("", "seaweedfs_filer_bench")
 	defer os.RemoveAll(dir)
 	store := &LevelDBStore{}

weed/filer/leveldb2/leveldb2_store.go

@@ -46,10 +46,9 @@ func (store *LevelDB2Store) initialize(dir string, dbCount int) (err error) {
 	}
 
 	opts := &opt.Options{
-		BlockCacheCapacity:            32 * 1024 * 1024, // default value is 8MiB
-		WriteBuffer:                   16 * 1024 * 1024, // default value is 4MiB
-		CompactionTableSizeMultiplier: 4,
-		Filter:                        filter.NewBloomFilter(8), // false positive rate 0.02
+		BlockCacheCapacity: 32 * 1024 * 1024,         // default value is 8MiB
+		WriteBuffer:        16 * 1024 * 1024,         // default value is 4MiB
+		Filter:             filter.NewBloomFilter(8), // false positive rate 0.02
 	}
 
 	for d := 0; d < dbCount; d++ {

weed/filer/leveldb2/leveldb2_store_test.go

@@ -11,7 +11,7 @@ import (
 )
 
 func TestCreateAndFind(t *testing.T) {
-	testFiler := filer.NewFiler(nil, nil, "", 0, "", "", "", nil)
+	testFiler := filer.NewFiler(nil, nil, "", "", "", "", nil)
 	dir, _ := ioutil.TempDir("", "seaweedfs_filer_test")
 	defer os.RemoveAll(dir)
 	store := &LevelDB2Store{}
@@ -65,7 +65,7 @@ func TestCreateAndFind(t *testing.T) {
 }
 
 func TestEmptyRoot(t *testing.T) {
-	testFiler := filer.NewFiler(nil, nil, "", 0, "", "", "", nil)
+	testFiler := filer.NewFiler(nil, nil, "", "", "", "", nil)
 	dir, _ := ioutil.TempDir("", "seaweedfs_filer_test2")
 	defer os.RemoveAll(dir)
 	store := &LevelDB2Store{}

weed/filer/leveldb3/leveldb3_store.go

@@ -66,17 +66,15 @@ func (store *LevelDB3Store) initialize(dir string) (err error) {
 func (store *LevelDB3Store) loadDB(name string) (*leveldb.DB, error) {
 	bloom := filter.NewBloomFilter(8) // false positive rate 0.02
 	opts := &opt.Options{
-		BlockCacheCapacity:            32 * 1024 * 1024, // default value is 8MiB
-		WriteBuffer:                   16 * 1024 * 1024, // default value is 4MiB
-		CompactionTableSizeMultiplier: 4,
-		Filter:                        bloom,
+		BlockCacheCapacity: 32 * 1024 * 1024, // default value is 8MiB
+		WriteBuffer:        16 * 1024 * 1024, // default value is 4MiB
+		Filter:             bloom,
 	}
 	if name != DEFAULT {
 		opts = &opt.Options{
-			BlockCacheCapacity:            4 * 1024 * 1024, // default value is 8MiB
-			WriteBuffer:                   2 * 1024 * 1024, // default value is 4MiB
-			CompactionTableSizeMultiplier: 4,
-			Filter:                        bloom,
+			BlockCacheCapacity: 4 * 1024 * 1024, // default value is 8MiB
+			WriteBuffer:        2 * 1024 * 1024, // default value is 4MiB
+			Filter:             bloom,
 		}
 	}
 

weed/filer/leveldb3/leveldb3_store_test.go

@@ -11,7 +11,7 @@ import (
 )
 
 func TestCreateAndFind(t *testing.T) {
-	testFiler := filer.NewFiler(nil, nil, "", 0, "", "", "", nil)
+	testFiler := filer.NewFiler(nil, nil, "", "", "", "", nil)
 	dir, _ := ioutil.TempDir("", "seaweedfs_filer_test")
 	defer os.RemoveAll(dir)
 	store := &LevelDB3Store{}
@@ -65,7 +65,7 @@ func TestCreateAndFind(t *testing.T) {
 }
 
 func TestEmptyRoot(t *testing.T) {
-	testFiler := filer.NewFiler(nil, nil, "", 0, "", "", "", nil)
+	testFiler := filer.NewFiler(nil, nil, "", "", "", "", nil)
 	dir, _ := ioutil.TempDir("", "seaweedfs_filer_test2")
 	defer os.RemoveAll(dir)
 	store := &LevelDB3Store{}

weed/filer/meta_aggregator.go

@@ -18,7 +18,7 @@ import (
 )
 
 type MetaAggregator struct {
-	filers         []string
+	filers         []pb.ServerAddress
 	grpcDialOption grpc.DialOption
 	MetaLogBuffer  *log_buffer.LogBuffer
 	// notifying clients
@@ -28,7 +28,7 @@ type MetaAggregator struct {
 
 // MetaAggregator only aggregates data "on the fly". The logs are not re-persisted to disk.
 // The old data comes from what each LocalMetadata persisted on disk.
-func NewMetaAggregator(filers []string, grpcDialOption grpc.DialOption) *MetaAggregator {
+func NewMetaAggregator(filers []pb.ServerAddress, grpcDialOption grpc.DialOption) *MetaAggregator {
 	t := &MetaAggregator{
 		filers:         filers,
 		grpcDialOption: grpcDialOption,
@@ -40,13 +40,13 @@ func NewMetaAggregator(filers []string, grpcDialOption grpc.DialOption) *MetaAgg
 	return t
 }
 
-func (ma *MetaAggregator) StartLoopSubscribe(f *Filer, self string) {
+func (ma *MetaAggregator) StartLoopSubscribe(f *Filer, self pb.ServerAddress) {
 	for _, filer := range ma.filers {
 		go ma.subscribeToOneFiler(f, self, filer)
 	}
 }
 
-func (ma *MetaAggregator) subscribeToOneFiler(f *Filer, self string, peer string) {
+func (ma *MetaAggregator) subscribeToOneFiler(f *Filer, self pb.ServerAddress, peer pb.ServerAddress) {
 
 	/*
 		Each filer reads the "filer.store.id", which is the store's signature when filer starts.
@@ -123,7 +123,7 @@ func (ma *MetaAggregator) subscribeToOneFiler(f *Filer, self string, peer string
 			ctx, cancel := context.WithCancel(context.Background())
 			defer cancel()
 			stream, err := client.SubscribeLocalMetadata(ctx, &filer_pb.SubscribeMetadataRequest{
-				ClientName: "filer:" + self,
+				ClientName: "filer:" + string(self),
 				PathPrefix: "/",
 				SinceNs:    lastTsNs,
 			})
@@ -156,7 +156,7 @@ func (ma *MetaAggregator) subscribeToOneFiler(f *Filer, self string, peer string
 	}
 }
 
-func (ma *MetaAggregator) readFilerStoreSignature(peer string) (sig int32, err error) {
+func (ma *MetaAggregator) readFilerStoreSignature(peer pb.ServerAddress) (sig int32, err error) {
 	err = pb.WithFilerClient(peer, ma.grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
 		resp, err := client.GetFilerConfiguration(context.Background(), &filer_pb.GetFilerConfigurationRequest{})
 		if err != nil {
@@ -172,7 +172,7 @@ const (
 	MetaOffsetPrefix = "Meta"
 )
 
-func (ma *MetaAggregator) readOffset(f *Filer, peer string, peerSignature int32) (lastTsNs int64, err error) {
+func (ma *MetaAggregator) readOffset(f *Filer, peer pb.ServerAddress, peerSignature int32) (lastTsNs int64, err error) {
 
 	key := []byte(MetaOffsetPrefix + "xxxx")
 	util.Uint32toBytes(key[len(MetaOffsetPrefix):], uint32(peerSignature))
@@ -195,7 +195,7 @@ func (ma *MetaAggregator) readOffset(f *Filer, peer string, peerSignature int32)
 	return
 }
 
-func (ma *MetaAggregator) updateOffset(f *Filer, peer string, peerSignature int32, lastTsNs int64) (err error) {
+func (ma *MetaAggregator) updateOffset(f *Filer, peer pb.ServerAddress, peerSignature int32, lastTsNs int64) (err error) {
 
 	key := []byte(MetaOffsetPrefix + "xxxx")
 	util.Uint32toBytes(key[len(MetaOffsetPrefix):], uint32(peerSignature))

weed/filer/read_remote.go

@@ -2,8 +2,8 @@ package filer
 
 import (
 	"context"
-	"fmt"
 	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
+	"github.com/chrislusf/seaweedfs/weed/pb/remote_pb"
 	"github.com/chrislusf/seaweedfs/weed/util"
 )
 
@@ -11,21 +11,8 @@ func (entry *Entry) IsInRemoteOnly() bool {
 	return len(entry.Chunks) == 0 && entry.Remote != nil && entry.Remote.RemoteSize > 0
 }
 
-func (f *Filer) ReadRemote(entry *Entry, offset int64, size int64) (data []byte, err error) {
-	client, _, found := f.RemoteStorage.GetRemoteStorageClient(entry.Remote.StorageName)
-	if !found {
-		return nil, fmt.Errorf("remote storage %v not found", entry.Remote.StorageName)
-	}
-
-	mountDir, remoteLoation := f.RemoteStorage.FindMountDirectory(entry.FullPath)
-
-	sourceLoc := MapFullPathToRemoteStorageLocation(mountDir, remoteLoation, entry.FullPath)
-
-	return client.ReadFile(sourceLoc, offset, size)
-}
-
-func MapFullPathToRemoteStorageLocation(localMountedDir util.FullPath, remoteMountedLocation *filer_pb.RemoteStorageLocation, fp util.FullPath) *filer_pb.RemoteStorageLocation {
-	remoteLocation := &filer_pb.RemoteStorageLocation{
+func MapFullPathToRemoteStorageLocation(localMountedDir util.FullPath, remoteMountedLocation *remote_pb.RemoteStorageLocation, fp util.FullPath) *remote_pb.RemoteStorageLocation {
+	remoteLocation := &remote_pb.RemoteStorageLocation{
 		Name:   remoteMountedLocation.Name,
 		Bucket: remoteMountedLocation.Bucket,
 		Path:   remoteMountedLocation.Path,
@@ -34,11 +21,11 @@ func MapFullPathToRemoteStorageLocation(localMountedDir util.FullPath, remoteMou
 	return remoteLocation
 }
 
-func MapRemoteStorageLocationPathToFullPath(localMountedDir util.FullPath, remoteMountedLocation *filer_pb.RemoteStorageLocation, remoteLocationPath string)(fp util.FullPath)  {
+func MapRemoteStorageLocationPathToFullPath(localMountedDir util.FullPath, remoteMountedLocation *remote_pb.RemoteStorageLocation, remoteLocationPath string) (fp util.FullPath) {
 	return localMountedDir.Child(remoteLocationPath[len(remoteMountedLocation.Path):])
 }
 
-func DownloadToLocal(filerClient filer_pb.FilerClient, remoteConf *filer_pb.RemoteConf, remoteLocation *filer_pb.RemoteStorageLocation, parent util.FullPath, entry *filer_pb.Entry) error {
+func DownloadToLocal(filerClient filer_pb.FilerClient, remoteConf *remote_pb.RemoteConf, remoteLocation *remote_pb.RemoteStorageLocation, parent util.FullPath, entry *filer_pb.Entry) error {
 	return filerClient.WithFilerClient(func(client filer_pb.SeaweedFilerClient) error {
 		_, err := client.DownloadToLocal(context.Background(), &filer_pb.DownloadToLocalRequest{
 			Directory: string(parent),

weed/filer/remote_mapping.go

@@ -0,0 +1,121 @@
+package filer
+
+import (
+	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/pb"
+	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
+	"github.com/chrislusf/seaweedfs/weed/pb/remote_pb"
+	"github.com/golang/protobuf/proto"
+	"google.golang.org/grpc"
+)
+
+func ReadMountMappings(grpcDialOption grpc.DialOption, filerAddress pb.ServerAddress) (mappings *remote_pb.RemoteStorageMapping, readErr error) {
+	var oldContent []byte
+	if readErr = pb.WithFilerClient(filerAddress, grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
+		oldContent, readErr = ReadInsideFiler(client, DirectoryEtcRemote, REMOTE_STORAGE_MOUNT_FILE)
+		return readErr
+	}); readErr != nil {
+		return nil, readErr
+	}
+
+	mappings, readErr = UnmarshalRemoteStorageMappings(oldContent)
+	if readErr != nil {
+		return nil, fmt.Errorf("unmarshal mappings: %v", readErr)
+	}
+
+	return
+}
+
+func InsertMountMapping(filerClient filer_pb.FilerClient, dir string, remoteStorageLocation *remote_pb.RemoteStorageLocation) (err error) {
+
+	// read current mapping
+	var oldContent, newContent []byte
+	err = filerClient.WithFilerClient(func(client filer_pb.SeaweedFilerClient) error {
+		oldContent, err = ReadInsideFiler(client, DirectoryEtcRemote, REMOTE_STORAGE_MOUNT_FILE)
+		return err
+	})
+	if err != nil {
+		if err != filer_pb.ErrNotFound {
+			return fmt.Errorf("read existing mapping: %v", err)
+		}
+	}
+
+	// add new mapping
+	newContent, err = addRemoteStorageMapping(oldContent, dir, remoteStorageLocation)
+	if err != nil {
+		return fmt.Errorf("add mapping %s~%s: %v", dir, remoteStorageLocation, err)
+	}
+
+	// save back
+	err = filerClient.WithFilerClient(func(client filer_pb.SeaweedFilerClient) error {
+		return SaveInsideFiler(client, DirectoryEtcRemote, REMOTE_STORAGE_MOUNT_FILE, newContent)
+	})
+	if err != nil {
+		return fmt.Errorf("save mapping: %v", err)
+	}
+
+	return nil
+}
+
+func DeleteMountMapping(filerClient filer_pb.FilerClient, dir string) (err error) {
+
+	// read current mapping
+	var oldContent, newContent []byte
+	err = filerClient.WithFilerClient(func(client filer_pb.SeaweedFilerClient) error {
+		oldContent, err = ReadInsideFiler(client, DirectoryEtcRemote, REMOTE_STORAGE_MOUNT_FILE)
+		return err
+	})
+	if err != nil {
+		if err != filer_pb.ErrNotFound {
+			return fmt.Errorf("read existing mapping: %v", err)
+		}
+	}
+
+	// add new mapping
+	newContent, err = removeRemoteStorageMapping(oldContent, dir)
+	if err != nil {
+		return fmt.Errorf("delete mount %s: %v", dir, err)
+	}
+
+	// save back
+	err = filerClient.WithFilerClient(func(client filer_pb.SeaweedFilerClient) error {
+		return SaveInsideFiler(client, DirectoryEtcRemote, REMOTE_STORAGE_MOUNT_FILE, newContent)
+	})
+	if err != nil {
+		return fmt.Errorf("save mapping: %v", err)
+	}
+
+	return nil
+}
+
+func addRemoteStorageMapping(oldContent []byte, dir string, storageLocation *remote_pb.RemoteStorageLocation) (newContent []byte, err error) {
+	mappings, unmarshalErr := UnmarshalRemoteStorageMappings(oldContent)
+	if unmarshalErr != nil {
+		// skip
+	}
+
+	// set the new mapping
+	mappings.Mappings[dir] = storageLocation
+
+	if newContent, err = proto.Marshal(mappings); err != nil {
+		return oldContent, fmt.Errorf("marshal mappings: %v", err)
+	}
+
+	return
+}
+
+func removeRemoteStorageMapping(oldContent []byte, dir string) (newContent []byte, err error) {
+	mappings, unmarshalErr := UnmarshalRemoteStorageMappings(oldContent)
+	if unmarshalErr != nil {
+		return nil, unmarshalErr
+	}
+
+	// set the new mapping
+	delete(mappings.Mappings, dir)
+
+	if newContent, err = proto.Marshal(mappings); err != nil {
+		return oldContent, fmt.Errorf("marshal mappings: %v", err)
+	}
+
+	return
+}

weed/filer/remote_storage.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"fmt"
 	"github.com/chrislusf/seaweedfs/weed/pb"
+	"github.com/chrislusf/seaweedfs/weed/pb/remote_pb"
 	"github.com/chrislusf/seaweedfs/weed/remote_storage"
 	"github.com/chrislusf/seaweedfs/weed/util"
 	"github.com/golang/protobuf/proto"
@@ -21,13 +22,13 @@ const REMOTE_STORAGE_MOUNT_FILE = "mount.mapping"
 
 type FilerRemoteStorage struct {
 	rules             ptrie.Trie
-	storageNameToConf map[string]*filer_pb.RemoteConf
+	storageNameToConf map[string]*remote_pb.RemoteConf
 }
 
 func NewFilerRemoteStorage() (rs *FilerRemoteStorage) {
 	rs = &FilerRemoteStorage{
 		rules:             ptrie.New(),
-		storageNameToConf: make(map[string]*filer_pb.RemoteConf),
+		storageNameToConf: make(map[string]*remote_pb.RemoteConf),
 	}
 	return rs
 }
@@ -56,7 +57,7 @@ func (rs *FilerRemoteStorage) LoadRemoteStorageConfigurationsAndMapping(filer *F
 		if !strings.HasSuffix(entry.Name(), REMOTE_STORAGE_CONF_SUFFIX) {
 			return nil
 		}
-		conf := &filer_pb.RemoteConf{}
+		conf := &remote_pb.RemoteConf{}
 		if err := proto.Unmarshal(entry.Content, conf); err != nil {
 			return fmt.Errorf("unmarshal %s/%s: %v", DirectoryEtcRemote, entry.Name(), err)
 		}
@@ -66,7 +67,7 @@ func (rs *FilerRemoteStorage) LoadRemoteStorageConfigurationsAndMapping(filer *F
 }
 
 func (rs *FilerRemoteStorage) loadRemoteStorageMountMapping(data []byte) (err error) {
-	mappings := &filer_pb.RemoteStorageMapping{}
+	mappings := &remote_pb.RemoteStorageMapping{}
 	if err := proto.Unmarshal(data, mappings); err != nil {
 		return fmt.Errorf("unmarshal %s/%s: %v", DirectoryEtcRemote, REMOTE_STORAGE_MOUNT_FILE, err)
 	}
@@ -76,23 +77,23 @@ func (rs *FilerRemoteStorage) loadRemoteStorageMountMapping(data []byte) (err er
 	return nil
 }
 
-func (rs *FilerRemoteStorage) mapDirectoryToRemoteStorage(dir util.FullPath, loc *filer_pb.RemoteStorageLocation) {
+func (rs *FilerRemoteStorage) mapDirectoryToRemoteStorage(dir util.FullPath, loc *remote_pb.RemoteStorageLocation) {
 	rs.rules.Put([]byte(dir+"/"), loc)
 }
 
-func (rs *FilerRemoteStorage) FindMountDirectory(p util.FullPath) (mountDir util.FullPath, remoteLocation *filer_pb.RemoteStorageLocation) {
+func (rs *FilerRemoteStorage) FindMountDirectory(p util.FullPath) (mountDir util.FullPath, remoteLocation *remote_pb.RemoteStorageLocation) {
 	rs.rules.MatchPrefix([]byte(p), func(key []byte, value interface{}) bool {
 		mountDir = util.FullPath(string(key[:len(key)-1]))
-		remoteLocation = value.(*filer_pb.RemoteStorageLocation)
+		remoteLocation = value.(*remote_pb.RemoteStorageLocation)
 		return true
 	})
 	return
 }
 
-func (rs *FilerRemoteStorage) FindRemoteStorageClient(p util.FullPath) (client remote_storage.RemoteStorageClient, remoteConf *filer_pb.RemoteConf, found bool) {
-	var storageLocation *filer_pb.RemoteStorageLocation
+func (rs *FilerRemoteStorage) FindRemoteStorageClient(p util.FullPath) (client remote_storage.RemoteStorageClient, remoteConf *remote_pb.RemoteConf, found bool) {
+	var storageLocation *remote_pb.RemoteStorageLocation
 	rs.rules.MatchPrefix([]byte(p), func(key []byte, value interface{}) bool {
-		storageLocation = value.(*filer_pb.RemoteStorageLocation)
+		storageLocation = value.(*remote_pb.RemoteStorageLocation)
 		return true
 	})
 
@@ -104,7 +105,7 @@ func (rs *FilerRemoteStorage) FindRemoteStorageClient(p util.FullPath) (client r
 	return rs.GetRemoteStorageClient(storageLocation.Name)
 }
 
-func (rs *FilerRemoteStorage) GetRemoteStorageClient(storageName string) (client remote_storage.RemoteStorageClient, remoteConf *filer_pb.RemoteConf, found bool) {
+func (rs *FilerRemoteStorage) GetRemoteStorageClient(storageName string) (client remote_storage.RemoteStorageClient, remoteConf *remote_pb.RemoteConf, found bool) {
 	remoteConf, found = rs.storageNameToConf[storageName]
 	if !found {
 		return
@@ -118,9 +119,9 @@ func (rs *FilerRemoteStorage) GetRemoteStorageClient(storageName string) (client
 	return
 }
 
-func UnmarshalRemoteStorageMappings(oldContent []byte) (mappings *filer_pb.RemoteStorageMapping, err error) {
-	mappings = &filer_pb.RemoteStorageMapping{
-		Mappings: make(map[string]*filer_pb.RemoteStorageLocation),
+func UnmarshalRemoteStorageMappings(oldContent []byte) (mappings *remote_pb.RemoteStorageMapping, err error) {
+	mappings = &remote_pb.RemoteStorageMapping{
+		Mappings: make(map[string]*remote_pb.RemoteStorageLocation),
 	}
 	if len(oldContent) > 0 {
 		if err = proto.Unmarshal(oldContent, mappings); err != nil {
@@ -130,56 +131,7 @@ func UnmarshalRemoteStorageMappings(oldContent []byte) (mappings *filer_pb.Remot
 	return
 }
 
-func AddRemoteStorageMapping(oldContent []byte, dir string, storageLocation *filer_pb.RemoteStorageLocation) (newContent []byte, err error) {
-	mappings, unmarshalErr := UnmarshalRemoteStorageMappings(oldContent)
-	if unmarshalErr != nil {
-		// skip
-	}
-
-	// set the new mapping
-	mappings.Mappings[dir] = storageLocation
-
-	if newContent, err = proto.Marshal(mappings); err != nil {
-		return oldContent, fmt.Errorf("marshal mappings: %v", err)
-	}
-
-	return
-}
-
-func RemoveRemoteStorageMapping(oldContent []byte, dir string) (newContent []byte, err error) {
-	mappings, unmarshalErr := UnmarshalRemoteStorageMappings(oldContent)
-	if unmarshalErr != nil {
-		return nil, unmarshalErr
-	}
-
-	// set the new mapping
-	delete(mappings.Mappings, dir)
-
-	if newContent, err = proto.Marshal(mappings); err != nil {
-		return oldContent, fmt.Errorf("marshal mappings: %v", err)
-	}
-
-	return
-}
-
-func ReadMountMappings(grpcDialOption grpc.DialOption, filerAddress string) (mappings *filer_pb.RemoteStorageMapping, readErr error) {
-	var oldContent []byte
-	if readErr = pb.WithFilerClient(filerAddress, grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
-		oldContent, readErr = ReadInsideFiler(client, DirectoryEtcRemote, REMOTE_STORAGE_MOUNT_FILE)
-		return readErr
-	}); readErr != nil {
-		return nil, readErr
-	}
-
-	mappings, readErr = UnmarshalRemoteStorageMappings(oldContent)
-	if readErr != nil {
-		return nil, fmt.Errorf("unmarshal mappings: %v", readErr)
-	}
-
-	return
-}
-
-func ReadRemoteStorageConf(grpcDialOption grpc.DialOption, filerAddress string, storageName string) (conf *filer_pb.RemoteConf, readErr error) {
+func ReadRemoteStorageConf(grpcDialOption grpc.DialOption, filerAddress pb.ServerAddress, storageName string) (conf *remote_pb.RemoteConf, readErr error) {
 	var oldContent []byte
 	if readErr = pb.WithFilerClient(filerAddress, grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
 		oldContent, readErr = ReadInsideFiler(client, DirectoryEtcRemote, storageName+REMOTE_STORAGE_CONF_SUFFIX)
@@ -189,7 +141,7 @@ func ReadRemoteStorageConf(grpcDialOption grpc.DialOption, filerAddress string,
 	}
 
 	// unmarshal storage configuration
-	conf = &filer_pb.RemoteConf{}
+	conf = &remote_pb.RemoteConf{}
 	if unMarshalErr := proto.Unmarshal(oldContent, conf); unMarshalErr != nil {
 		readErr = fmt.Errorf("unmarshal %s/%s: %v", DirectoryEtcRemote, storageName+REMOTE_STORAGE_CONF_SUFFIX, unMarshalErr)
 		return
@@ -198,7 +150,7 @@ func ReadRemoteStorageConf(grpcDialOption grpc.DialOption, filerAddress string,
 	return
 }
 
-func DetectMountInfo(grpcDialOption grpc.DialOption, filerAddress string, dir string) (*filer_pb.RemoteStorageMapping, string, *filer_pb.RemoteStorageLocation, *filer_pb.RemoteConf, error) {
+func DetectMountInfo(grpcDialOption grpc.DialOption, filerAddress pb.ServerAddress, dir string) (*remote_pb.RemoteStorageMapping, string, *remote_pb.RemoteStorageLocation, *remote_pb.RemoteConf, error) {
 
 	mappings, listErr := ReadMountMappings(grpcDialOption, filerAddress)
 	if listErr != nil {
@@ -209,7 +161,7 @@ func DetectMountInfo(grpcDialOption grpc.DialOption, filerAddress string, dir st
 	}
 
 	var localMountedDir string
-	var remoteStorageMountedLocation *filer_pb.RemoteStorageLocation
+	var remoteStorageMountedLocation *remote_pb.RemoteStorageLocation
 	for k, loc := range mappings.Mappings {
 		if strings.HasPrefix(dir, k) {
 			localMountedDir, remoteStorageMountedLocation = k, loc

weed/filer/remote_storage_test.go

@@ -1,20 +1,20 @@
 package filer
 
 import (
-	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
+	"github.com/chrislusf/seaweedfs/weed/pb/remote_pb"
 	"github.com/stretchr/testify/assert"
 	"testing"
 )
 
 func TestFilerRemoteStorage_FindRemoteStorageClient(t *testing.T) {
-	conf := &filer_pb.RemoteConf{
+	conf := &remote_pb.RemoteConf{
 		Name: "s7",
 		Type: "s3",
 	}
 	rs := NewFilerRemoteStorage()
 	rs.storageNameToConf[conf.Name] = conf
 
-	rs.mapDirectoryToRemoteStorage("/a/b/c", &filer_pb.RemoteStorageLocation{
+	rs.mapDirectoryToRemoteStorage("/a/b/c", &remote_pb.RemoteStorageLocation{
 		Name:   "s7",
 		Bucket: "some",
 		Path:   "/dir",

weed/filer/sqlite/sqlite_store.go

@@ -1,3 +1,4 @@
+//go:build linux || darwin || windows
 // +build linux darwin windows
 
 // limited GOOS due to modernc.org/libc/unistd

weed/filer/sqlite/sqlite_store_unsupported.go

@@ -1,3 +1,4 @@
+//go:build !linux && !darwin && !windows && !s390 && !ppc64le && !mips64
 // +build !linux,!darwin,!windows,!s390,!ppc64le,!mips64
 
 // limited GOOS due to modernc.org/libc/unistd

weed/filer/stream.go

@@ -7,6 +7,7 @@ import (
 	"math"
 	"sort"
 	"strings"
+	"sync"
 	"time"
 
 	"github.com/chrislusf/seaweedfs/weed/glog"
@@ -126,14 +127,14 @@ func ReadAll(masterClient *wdclient.MasterClient, chunks []*filer_pb.FileChunk)
 
 // ----------------  ChunkStreamReader ----------------------------------
 type ChunkStreamReader struct {
-	chunkViews         []*ChunkView
-	totalSize          int64
-	logicOffset        int64
-	buffer             []byte
-	bufferOffset       int64
-	bufferPos          int
-	nextChunkViewIndex int
-	lookupFileId       wdclient.LookupFileIdFunctionType
+	chunkViews   []*ChunkView
+	totalSize    int64
+	logicOffset  int64
+	buffer       []byte
+	bufferOffset int64
+	bufferLock   sync.Mutex
+	chunk        string
+	lookupFileId wdclient.LookupFileIdFunctionType
 }
 
 var _ = io.ReadSeeker(&ChunkStreamReader{})
@@ -175,27 +176,29 @@ func NewChunkStreamReader(filerClient filer_pb.FilerClient, chunks []*filer_pb.F
 }
 
 func (c *ChunkStreamReader) ReadAt(p []byte, off int64) (n int, err error) {
+	c.bufferLock.Lock()
+	defer c.bufferLock.Unlock()
 	if err = c.prepareBufferFor(off); err != nil {
 		return
 	}
 	c.logicOffset = off
-	return c.Read(p)
+	return c.doRead(p)
 }
 
 func (c *ChunkStreamReader) Read(p []byte) (n int, err error) {
+	c.bufferLock.Lock()
+	defer c.bufferLock.Unlock()
+	return c.doRead(p)
+}
+
+func (c *ChunkStreamReader) doRead(p []byte) (n int, err error) {
+	// fmt.Printf("do read [%d,%d) at %s[%d,%d)\n", c.logicOffset, c.logicOffset+int64(len(p)), c.chunk, c.bufferOffset, c.bufferOffset+int64(len(c.buffer)))
 	for n < len(p) {
-		if c.isBufferEmpty() {
-			if c.nextChunkViewIndex >= len(c.chunkViews) {
-				return n, io.EOF
-			}
-			chunkView := c.chunkViews[c.nextChunkViewIndex]
-			if err = c.fetchChunkToBuffer(chunkView); err != nil {
-				return
-			}
-			c.nextChunkViewIndex++
+		// println("read", c.logicOffset)
+		if err = c.prepareBufferFor(c.logicOffset); err != nil {
+			return
 		}
-		t := copy(p[n:], c.buffer[c.bufferPos:])
-		c.bufferPos += t
+		t := copy(p[n:], c.buffer[c.logicOffset-c.bufferOffset:])
 		n += t
 		c.logicOffset += int64(t)
 	}
@@ -203,10 +206,12 @@ func (c *ChunkStreamReader) Read(p []byte) (n int, err error) {
 }
 
 func (c *ChunkStreamReader) isBufferEmpty() bool {
-	return len(c.buffer) <= c.bufferPos
+	return len(c.buffer) <= int(c.logicOffset-c.bufferOffset)
 }
 
 func (c *ChunkStreamReader) Seek(offset int64, whence int) (int64, error) {
+	c.bufferLock.Lock()
+	defer c.bufferLock.Unlock()
 
 	var err error
 	switch whence {
@@ -226,48 +231,59 @@ func (c *ChunkStreamReader) Seek(offset int64, whence int) (int64, error) {
 
 }
 
+func insideChunk(offset int64, chunk *ChunkView) bool {
+	return chunk.LogicOffset <= offset && offset < chunk.LogicOffset+int64(chunk.Size)
+}
+
 func (c *ChunkStreamReader) prepareBufferFor(offset int64) (err error) {
 	// stay in the same chunk
-	if !c.isBufferEmpty() {
-		if c.bufferOffset <= offset && offset < c.bufferOffset+int64(len(c.buffer)) {
-			c.bufferPos = int(offset - c.bufferOffset)
-			return nil
-		}
+	if c.bufferOffset <= offset && offset < c.bufferOffset+int64(len(c.buffer)) {
+		return nil
 	}
 
+	// fmt.Printf("fetch for offset %d\n", offset)
+
 	// need to seek to a different chunk
 	currentChunkIndex := sort.Search(len(c.chunkViews), func(i int) bool {
 		return offset < c.chunkViews[i].LogicOffset
 	})
 	if currentChunkIndex == len(c.chunkViews) {
 		// not found
-		if c.chunkViews[0].LogicOffset <= offset {
+		if insideChunk(offset, c.chunkViews[0]) {
+			// fmt.Printf("select0 chunk %d %s\n", currentChunkIndex, c.chunkViews[currentChunkIndex].FileId)
 			currentChunkIndex = 0
-		} else if c.chunkViews[len(c.chunkViews)-1].LogicOffset <= offset {
-			currentChunkIndex = len(c.chunkViews) -1
+		} else if insideChunk(offset, c.chunkViews[len(c.chunkViews)-1]) {
+			currentChunkIndex = len(c.chunkViews) - 1
+			// fmt.Printf("select last chunk %d %s\n", currentChunkIndex, c.chunkViews[currentChunkIndex].FileId)
 		} else {
 			return io.EOF
 		}
 	} else if currentChunkIndex > 0 {
-		if c.chunkViews[currentChunkIndex-1].LogicOffset <= offset {
+		if insideChunk(offset, c.chunkViews[currentChunkIndex]) {
+			// good hit
+		} else if insideChunk(offset, c.chunkViews[currentChunkIndex-1]) {
 			currentChunkIndex -= 1
+			// fmt.Printf("select -1 chunk %d %s\n", currentChunkIndex, c.chunkViews[currentChunkIndex].FileId)
 		} else {
+			// glog.Fatalf("unexpected1 offset %d", offset)
 			return fmt.Errorf("unexpected1 offset %d", offset)
 		}
 	} else {
+		// glog.Fatalf("unexpected2 offset %d", offset)
 		return fmt.Errorf("unexpected2 offset %d", offset)
 	}
 
 	// positioning within the new chunk
 	chunk := c.chunkViews[currentChunkIndex]
-	if chunk.LogicOffset <= offset && offset < chunk.LogicOffset+int64(chunk.Size) {
+	if insideChunk(offset, chunk) {
 		if c.isBufferEmpty() || c.bufferOffset != chunk.LogicOffset {
 			if err = c.fetchChunkToBuffer(chunk); err != nil {
 				return
 			}
-			c.nextChunkViewIndex = currentChunkIndex + 1
 		}
-		c.bufferPos = int(offset - c.bufferOffset)
+	} else {
+		// glog.Fatalf("unexpected3 offset %d in %s [%d,%d)", offset, chunk.FileId, chunk.LogicOffset, chunk.LogicOffset+int64(chunk.Size))
+		return fmt.Errorf("unexpected3 offset %d in %s [%d,%d)", offset, chunk.FileId, chunk.LogicOffset, chunk.LogicOffset+int64(chunk.Size))
 	}
 	return
 }
@@ -298,10 +314,10 @@ func (c *ChunkStreamReader) fetchChunkToBuffer(chunkView *ChunkView) error {
 		return err
 	}
 	c.buffer = buffer.Bytes()
-	c.bufferPos = 0
 	c.bufferOffset = chunkView.LogicOffset
+	c.chunk = chunkView.FileId
 
-	// glog.V(0).Infof("read %s [%d,%d)", chunkView.FileId, chunkView.LogicOffset, chunkView.LogicOffset+int64(chunkView.Size))
+	// glog.V(0).Infof("fetched %s [%d,%d)", chunkView.FileId, chunkView.LogicOffset, chunkView.LogicOffset+int64(chunkView.Size))
 
 	return nil
 }

weed/filer/tikv/tikv.go

@@ -0,0 +1,5 @@
+package tikv
+
+/*
+ * This empty file is let go build can work without tikv tag
+ */

weed/filer/tikv/tikv_store.go

@@ -0,0 +1,389 @@
+//go:build tikv
+// +build tikv
+
+package tikv
+
+import (
+	"bytes"
+	"context"
+	"crypto/sha1"
+	"fmt"
+	"io"
+	"strings"
+
+	"github.com/chrislusf/seaweedfs/weed/filer"
+	"github.com/chrislusf/seaweedfs/weed/glog"
+	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
+	"github.com/chrislusf/seaweedfs/weed/util"
+	"github.com/tikv/client-go/v2/tikv"
+	"github.com/tikv/client-go/v2/txnkv"
+)
+
+var (
+	_ filer.FilerStore = ((*TikvStore)(nil))
+)
+
+func init() {
+	filer.Stores = append(filer.Stores, &TikvStore{})
+}
+
+type TikvStore struct {
+	client                 *tikv.KVStore
+	deleteRangeConcurrency int
+}
+
+// Basic APIs
+func (store *TikvStore) GetName() string {
+	return "tikv"
+}
+
+func (store *TikvStore) Initialize(config util.Configuration, prefix string) error {
+	pdAddrs := []string{}
+	pdAddrsStr := config.GetString(prefix + "pdaddrs")
+	for _, item := range strings.Split(pdAddrsStr, ",") {
+		pdAddrs = append(pdAddrs, strings.TrimSpace(item))
+	}
+	drc := config.GetInt(prefix + "deleterange_concurrency")
+	if drc <= 0 {
+		drc = 1
+	}
+	store.deleteRangeConcurrency = drc
+	return store.initialize(pdAddrs)
+}
+
+func (store *TikvStore) initialize(pdAddrs []string) error {
+	client, err := tikv.NewTxnClient(pdAddrs)
+	store.client = client
+	return err
+}
+
+func (store *TikvStore) Shutdown() {
+	err := store.client.Close()
+	if err != nil {
+		glog.V(0).Infof("Shutdown TiKV client got error: %v", err)
+	}
+}
+
+// ~ Basic APIs
+
+// Entry APIs
+func (store *TikvStore) InsertEntry(ctx context.Context, entry *filer.Entry) error {
+	dir, name := entry.DirAndName()
+	key := generateKey(dir, name)
+
+	value, err := entry.EncodeAttributesAndChunks()
+	if err != nil {
+		return fmt.Errorf("encoding %s %+v: %v", entry.FullPath, entry.Attr, err)
+	}
+	txn, err := store.getTxn(ctx)
+	if err != nil {
+		return err
+	}
+	err = txn.RunInTxn(func(txn *txnkv.KVTxn) error {
+		return txn.Set(key, value)
+	})
+	if err != nil {
+		return fmt.Errorf("persisting %s : %v", entry.FullPath, err)
+	}
+	return nil
+}
+
+func (store *TikvStore) UpdateEntry(ctx context.Context, entry *filer.Entry) error {
+	return store.InsertEntry(ctx, entry)
+}
+
+func (store *TikvStore) FindEntry(ctx context.Context, path util.FullPath) (*filer.Entry, error) {
+	dir, name := path.DirAndName()
+	key := generateKey(dir, name)
+
+	txn, err := store.getTxn(ctx)
+	if err != nil {
+		return nil, err
+	}
+	var value []byte = nil
+	err = txn.RunInTxn(func(txn *txnkv.KVTxn) error {
+		val, err := txn.Get(context.TODO(), key)
+		if err == nil {
+			value = val
+		}
+		return err
+	})
+
+	if isNotExists(err) || value == nil {
+		return nil, filer_pb.ErrNotFound
+	}
+
+	if err != nil {
+		return nil, fmt.Errorf("get %s : %v", path, err)
+	}
+
+	entry := &filer.Entry{
+		FullPath: path,
+	}
+	err = entry.DecodeAttributesAndChunks(value)
+	if err != nil {
+		return entry, fmt.Errorf("decode %s : %v", entry.FullPath, err)
+	}
+	return entry, nil
+}
+
+func (store *TikvStore) DeleteEntry(ctx context.Context, path util.FullPath) error {
+	dir, name := path.DirAndName()
+	key := generateKey(dir, name)
+
+	txn, err := store.getTxn(ctx)
+	if err != nil {
+		return err
+	}
+
+	err = txn.RunInTxn(func(txn *txnkv.KVTxn) error {
+		return txn.Delete(key)
+	})
+	if err != nil {
+		return fmt.Errorf("delete %s : %v", path, err)
+	}
+	return nil
+}
+
+// ~ Entry APIs
+
+// Directory APIs
+func (store *TikvStore) DeleteFolderChildren(ctx context.Context, path util.FullPath) error {
+	directoryPrefix := genDirectoryKeyPrefix(path, "")
+
+	txn, err := store.getTxn(ctx)
+	if err != nil {
+		return err
+	}
+	var (
+		startKey []byte = nil
+		endKey   []byte = nil
+	)
+	err = txn.RunInTxn(func(txn *txnkv.KVTxn) error {
+		iter, err := txn.Iter(directoryPrefix, nil)
+		if err != nil {
+			return err
+		}
+		defer iter.Close()
+		for iter.Valid() {
+			key := iter.Key()
+			endKey = key
+			if !bytes.HasPrefix(key, directoryPrefix) {
+				break
+			}
+			if startKey == nil {
+				startKey = key
+			}
+
+			err = iter.Next()
+			if err != nil {
+				return err
+			}
+		}
+		// Only one Key matched just delete it.
+		if startKey != nil && bytes.Equal(startKey, endKey) {
+			return txn.Delete(startKey)
+		}
+		return nil
+	})
+	if err != nil {
+		return fmt.Errorf("delete %s : %v", path, err)
+	}
+
+	if startKey != nil && endKey != nil && !bytes.Equal(startKey, endKey) {
+		// has startKey and endKey and they are not equals, so use delete range
+		_, err = store.client.DeleteRange(context.Background(), startKey, endKey, store.deleteRangeConcurrency)
+		if err != nil {
+			return fmt.Errorf("delete %s : %v", path, err)
+		}
+	}
+	return err
+}
+
+func (store *TikvStore) ListDirectoryEntries(ctx context.Context, dirPath util.FullPath, startFileName string, includeStartFile bool, limit int64, eachEntryFunc filer.ListEachEntryFunc) (string, error) {
+	return store.ListDirectoryPrefixedEntries(ctx, dirPath, startFileName, includeStartFile, limit, "", eachEntryFunc)
+}
+
+func (store *TikvStore) ListDirectoryPrefixedEntries(ctx context.Context, dirPath util.FullPath, startFileName string, includeStartFile bool, limit int64, prefix string, eachEntryFunc filer.ListEachEntryFunc) (string, error) {
+	lastFileName := ""
+	directoryPrefix := genDirectoryKeyPrefix(dirPath, prefix)
+	lastFileStart := directoryPrefix
+	if startFileName != "" {
+		lastFileStart = genDirectoryKeyPrefix(dirPath, startFileName)
+	}
+
+	txn, err := store.getTxn(ctx)
+	if err != nil {
+		return lastFileName, err
+	}
+	err = txn.RunInTxn(func(txn *txnkv.KVTxn) error {
+		iter, err := txn.Iter(lastFileStart, nil)
+		if err != nil {
+			return err
+		}
+		defer iter.Close()
+		i := int64(0)
+		first := true
+		for iter.Valid() {
+			if first {
+				first = false
+				if !includeStartFile {
+					if iter.Valid() {
+						// Check first item is lastFileStart
+						if bytes.Equal(iter.Key(), lastFileStart) {
+							// Is lastFileStart and not include start file, just
+							// ignore it.
+							err = iter.Next()
+							if err != nil {
+								return err
+							}
+							continue
+						}
+					}
+				}
+			}
+			// Check for limitation
+			if limit > 0 {
+				i++
+				if i > limit {
+					break
+				}
+			}
+			// Validate key prefix
+			key := iter.Key()
+			if !bytes.HasPrefix(key, directoryPrefix) {
+				break
+			}
+			value := iter.Value()
+
+			// Start process
+			fileName := getNameFromKey(key)
+			if fileName != "" {
+				// Got file name, then generate the Entry
+				entry := &filer.Entry{
+					FullPath: util.NewFullPath(string(dirPath), fileName),
+				}
+				// Update lastFileName
+				lastFileName = fileName
+				// Check for decode value.
+				if decodeErr := entry.DecodeAttributesAndChunks(value); decodeErr != nil {
+					// Got error just return the error
+					glog.V(0).Infof("list %s : %v", entry.FullPath, err)
+					return err
+				}
+				// Run for each callback if return false just break the iteration
+				if !eachEntryFunc(entry) {
+					break
+				}
+			}
+			// End process
+
+			err = iter.Next()
+			if err != nil {
+				return err
+			}
+		}
+		return nil
+	})
+	if err != nil {
+		return lastFileName, fmt.Errorf("prefix list %s : %v", dirPath, err)
+	}
+	return lastFileName, nil
+}
+
+// ~ Directory APIs
+
+// Transaction Related APIs
+func (store *TikvStore) BeginTransaction(ctx context.Context) (context.Context, error) {
+	tx, err := store.client.Begin()
+	if err != nil {
+		return ctx, err
+	}
+	return context.WithValue(ctx, "tx", tx), nil
+}
+
+func (store *TikvStore) CommitTransaction(ctx context.Context) error {
+	if tx, ok := ctx.Value("tx").(*txnkv.KVTxn); ok {
+		return tx.Commit(context.Background())
+	}
+	return nil
+}
+
+func (store *TikvStore) RollbackTransaction(ctx context.Context) error {
+	if tx, ok := ctx.Value("tx").(*txnkv.KVTxn); ok {
+		return tx.Rollback()
+	}
+	return nil
+}
+
+// ~ Transaction Related APIs
+
+// Transaction Wrapper
+type TxnWrapper struct {
+	*txnkv.KVTxn
+	inContext bool
+}
+
+func (w *TxnWrapper) RunInTxn(f func(txn *txnkv.KVTxn) error) error {
+	err := f(w.KVTxn)
+	if !w.inContext {
+		if err != nil {
+			w.KVTxn.Rollback()
+			return err
+		}
+		w.KVTxn.Commit(context.Background())
+		return nil
+	}
+	return err
+}
+
+func (store *TikvStore) getTxn(ctx context.Context) (*TxnWrapper, error) {
+	if tx, ok := ctx.Value("tx").(*txnkv.KVTxn); ok {
+		return &TxnWrapper{tx, true}, nil
+	}
+	txn, err := store.client.Begin()
+	if err != nil {
+		return nil, err
+	}
+	return &TxnWrapper{txn, false}, nil
+}
+
+// ~ Transaction Wrapper
+
+// Encoding Functions
+func hashToBytes(dir string) []byte {
+	h := sha1.New()
+	io.WriteString(h, dir)
+	b := h.Sum(nil)
+	return b
+}
+
+func generateKey(dirPath, fileName string) []byte {
+	key := hashToBytes(dirPath)
+	key = append(key, []byte(fileName)...)
+	return key
+}
+
+func getNameFromKey(key []byte) string {
+	return string(key[sha1.Size:])
+}
+
+func genDirectoryKeyPrefix(fullpath util.FullPath, startFileName string) (keyPrefix []byte) {
+	keyPrefix = hashToBytes(string(fullpath))
+	if len(startFileName) > 0 {
+		keyPrefix = append(keyPrefix, []byte(startFileName)...)
+	}
+	return keyPrefix
+}
+
+func isNotExists(err error) bool {
+	if err == nil {
+		return false
+	}
+	if err.Error() == "not exist" {
+		return true
+	}
+	return false
+}
+
+// ~ Encoding Functions

weed/filer/tikv/tikv_store_kv.go

@@ -0,0 +1,50 @@
+//go:build tikv
+// +build tikv
+
+package tikv
+
+import (
+	"context"
+
+	"github.com/chrislusf/seaweedfs/weed/filer"
+	"github.com/tikv/client-go/v2/txnkv"
+)
+
+func (store *TikvStore) KvPut(ctx context.Context, key []byte, value []byte) error {
+	tw, err := store.getTxn(ctx)
+	if err != nil {
+		return err
+	}
+	return tw.RunInTxn(func(txn *txnkv.KVTxn) error {
+		return txn.Set(key, value)
+	})
+}
+
+func (store *TikvStore) KvGet(ctx context.Context, key []byte) ([]byte, error) {
+	tw, err := store.getTxn(ctx)
+	if err != nil {
+		return nil, err
+	}
+	var data []byte = nil
+	err = tw.RunInTxn(func(txn *txnkv.KVTxn) error {
+		val, err := txn.Get(context.TODO(), key)
+		if err == nil {
+			data = val
+		}
+		return err
+	})
+	if isNotExists(err) {
+		return data, filer.ErrKvNotFound
+	}
+	return data, err
+}
+
+func (store *TikvStore) KvDelete(ctx context.Context, key []byte) error {
+	tw, err := store.getTxn(ctx)
+	if err != nil {
+		return err
+	}
+	return tw.RunInTxn(func(txn *txnkv.KVTxn) error {
+		return txn.Delete(key)
+	})
+}

weed/filesys/meta_cache/meta_cache_subscribe.go

@@ -39,11 +39,9 @@ func SubscribeMetaEvents(mc *MetaCache, selfSignature int32, client filer_pb.Fil
 		err := mc.AtomicUpdateEntryFromFiler(context.Background(), oldPath, newEntry)
 		if err == nil {
 			if message.OldEntry != nil && message.NewEntry != nil {
-				if message.OldEntry.Name == message.NewEntry.Name {
-					// no need to invalidate
-				} else {
-					oldKey := util.NewFullPath(resp.Directory, message.OldEntry.Name)
-					mc.invalidateFunc(oldKey)
+				oldKey := util.NewFullPath(resp.Directory, message.OldEntry.Name)
+				mc.invalidateFunc(oldKey)
+				if message.OldEntry.Name != message.NewEntry.Name {
 					newKey := util.NewFullPath(dir, message.NewEntry.Name)
 					mc.invalidateFunc(newKey)
 				}

weed/filesys/wfs.go

@@ -3,6 +3,7 @@ package filesys
 import (
 	"context"
 	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/pb"
 	"math"
 	"math/rand"
 	"os"
@@ -31,9 +32,8 @@ import (
 
 type Option struct {
 	MountDirectory     string
-	FilerAddresses     []string
+	FilerAddresses     []pb.ServerAddress
 	filerIndex         int
-	FilerGrpcAddresses []string
 	GrpcDialOption     grpc.DialOption
 	FilerMountRootPath string
 	Collection         string
@@ -270,17 +270,17 @@ func (wfs *WFS) mapPbIdFromLocalToFiler(entry *filer_pb.Entry) {
 func (wfs *WFS) LookupFn() wdclient.LookupFileIdFunctionType {
 	if wfs.option.VolumeServerAccess == "filerProxy" {
 		return func(fileId string) (targetUrls []string, err error) {
-			return []string{"http://" + wfs.getCurrentFiler() + "/?proxyChunkId=" + fileId}, nil
+			return []string{"http://" + wfs.getCurrentFiler().ToHttpAddress() + "/?proxyChunkId=" + fileId}, nil
 		}
 	}
 	return filer.LookupFn(wfs)
 }
-func (wfs *WFS) getCurrentFiler() string {
+func (wfs *WFS) getCurrentFiler() pb.ServerAddress {
 	return wfs.option.FilerAddresses[wfs.option.filerIndex]
 }
 
 func (option *Option) setupUniqueCacheDirectory() {
-	cacheUniqueId := util.Md5String([]byte(option.MountDirectory + option.FilerGrpcAddresses[0] + option.FilerMountRootPath + util.Version()))[0:8]
+	cacheUniqueId := util.Md5String([]byte(option.MountDirectory + string(option.FilerAddresses[0]) + option.FilerMountRootPath + util.Version()))[0:8]
 	option.uniqueCacheDir = path.Join(option.CacheDir, cacheUniqueId)
 	option.uniqueCacheTempPageDir = filepath.Join(option.uniqueCacheDir, "sw")
 	os.MkdirAll(option.uniqueCacheTempPageDir, os.FileMode(0777)&^option.Umask)

weed/filesys/wfs_filer_client.go

@@ -16,10 +16,10 @@ func (wfs *WFS) WithFilerClient(fn func(filer_pb.SeaweedFilerClient) error) (err
 	return util.Retry("filer grpc", func() error {
 
 		i := wfs.option.filerIndex
-		n := len(wfs.option.FilerGrpcAddresses)
+		n := len(wfs.option.FilerAddresses)
 		for x := 0; x < n; x++ {
 
-			filerGrpcAddress := wfs.option.FilerGrpcAddresses[i]
+			filerGrpcAddress := wfs.option.FilerAddresses[i].ToGrpcAddress()
 			err = pb.WithCachedGrpcClient(func(grpcConnection *grpc.ClientConn) error {
 				client := filer_pb.NewSeaweedFilerClient(grpcConnection)
 				return fn(client)

weed/filesys/wfs_write.go

@@ -41,10 +41,7 @@ func (wfs *WFS) saveDataAsChunk(fullPath util.FullPath, writeOnly bool) filer.Sa
 				}
 
 				fileId, auth = resp.FileId, security.EncodedJwt(resp.Auth)
-				loc := &filer_pb.Location{
-					Url:       resp.Url,
-					PublicUrl: resp.PublicUrl,
-				}
+				loc := resp.Location
 				host = wfs.AdjustedUrl(loc)
 				collection, replication = resp.Collection, resp.Replication
 
@@ -58,7 +55,16 @@ func (wfs *WFS) saveDataAsChunk(fullPath util.FullPath, writeOnly bool) filer.Sa
 		if wfs.option.VolumeServerAccess == "filerProxy" {
 			fileUrl = fmt.Sprintf("http://%s/?proxyChunkId=%s", wfs.getCurrentFiler(), fileId)
 		}
-		uploadResult, err, data := operation.Upload(fileUrl, filename, wfs.option.Cipher, reader, false, "", nil, auth)
+		uploadOption := &operation.UploadOption{
+			UploadUrl:         fileUrl,
+			Filename:          filename,
+			Cipher:            wfs.option.Cipher,
+			IsInputCompressed: false,
+			MimeType:          "",
+			PairMap:           nil,
+			Jwt:               auth,
+		}
+		uploadResult, err, data := operation.Upload(reader, uploadOption)
 		if err != nil {
 			glog.V(0).Infof("upload data %v to %s: %v", filename, fileUrl, err)
 			return nil, "", "", fmt.Errorf("upload data: %v", err)

weed/filesys/xattr.go

@@ -2,6 +2,7 @@ package filesys
 
 import (
 	"context"
+	"strings"
 
 	"github.com/seaweedfs/fuse"
 
@@ -10,6 +11,10 @@ import (
 	"github.com/chrislusf/seaweedfs/weed/util"
 )
 
+const (
+	XATTR_PREFIX = "xattr-" // same as filer
+)
+
 func getxattr(entry *filer_pb.Entry, req *fuse.GetxattrRequest, resp *fuse.GetxattrResponse) error {
 
 	if entry == nil {
@@ -18,7 +23,7 @@ func getxattr(entry *filer_pb.Entry, req *fuse.GetxattrRequest, resp *fuse.Getxa
 	if entry.Extended == nil {
 		return fuse.ErrNoXattr
 	}
-	data, found := entry.Extended[req.Name]
+	data, found := entry.Extended[XATTR_PREFIX+req.Name]
 	if !found {
 		return fuse.ErrNoXattr
 	}
@@ -47,7 +52,7 @@ func setxattr(entry *filer_pb.Entry, req *fuse.SetxattrRequest) error {
 	if entry.Extended == nil {
 		entry.Extended = make(map[string][]byte)
 	}
-	data, _ := entry.Extended[req.Name]
+	data, _ := entry.Extended[XATTR_PREFIX+req.Name]
 
 	newData := make([]byte, int(req.Position)+len(req.Xattr))
 
@@ -55,7 +60,7 @@ func setxattr(entry *filer_pb.Entry, req *fuse.SetxattrRequest) error {
 
 	copy(newData[int(req.Position):], req.Xattr)
 
-	entry.Extended[req.Name] = newData
+	entry.Extended[XATTR_PREFIX+req.Name] = newData
 
 	return nil
 
@@ -71,13 +76,13 @@ func removexattr(entry *filer_pb.Entry, req *fuse.RemovexattrRequest) error {
 		return fuse.ErrNoXattr
 	}
 
-	_, found := entry.Extended[req.Name]
+	_, found := entry.Extended[XATTR_PREFIX+req.Name]
 
 	if !found {
 		return fuse.ErrNoXattr
 	}
 
-	delete(entry.Extended, req.Name)
+	delete(entry.Extended, XATTR_PREFIX+req.Name)
 
 	return nil
 
@@ -90,7 +95,9 @@ func listxattr(entry *filer_pb.Entry, req *fuse.ListxattrRequest, resp *fuse.Lis
 	}
 
 	for k := range entry.Extended {
-		resp.Append(k)
+		if strings.HasPrefix(k, XATTR_PREFIX) {
+			resp.Append(k[len(XATTR_PREFIX):])
+		}
 	}
 
 	size := req.Size
@@ -116,7 +123,7 @@ func (wfs *WFS) maybeLoadEntry(dir, name string) (entry *filer_pb.Entry, err err
 	// return a valid entry for the mount root
 	if string(fullpath) == wfs.option.FilerMountRootPath {
 		return &filer_pb.Entry{
-			Name:        wfs.option.FilerMountRootPath,
+			Name:        name,
 			IsDirectory: true,
 			Attributes: &filer_pb.FuseAttributes{
 				Mtime:    wfs.option.MountMtime.Unix(),

weed/ftpd/ftp_server.go

@@ -3,7 +3,7 @@ package ftpd
 import (
 	"crypto/tls"
 	"errors"
-	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/util"
 	"net"
 
 	ftpserver "github.com/fclairamb/ftpserverlib"
@@ -51,7 +51,7 @@ func (s *SftpServer) GetSettings() (*ftpserver.Settings, error) {
 
 	return &ftpserver.Settings{
 		Listener:                 s.ftpListener,
-		ListenAddr:               fmt.Sprintf("%s:%d", s.option.IpBind, s.option.Port),
+		ListenAddr:               util.JoinHostPort(s.option.IpBind, s.option.Port),
 		PublicHost:               s.option.IP,
 		PassiveTransferPortRange: portRange,
 		ActiveTransferPortNon20:  true,

weed/iamapi/iamapi_server.go

@@ -18,7 +18,6 @@ import (
 	"github.com/gorilla/mux"
 	"google.golang.org/grpc"
 	"net/http"
-	"strings"
 )
 
 type IamS3ApiConfig interface {
@@ -34,11 +33,10 @@ type IamS3ApiConfigure struct {
 }
 
 type IamServerOption struct {
-	Masters          string
-	Filer            string
-	Port             int
-	FilerGrpcAddress string
-	GrpcDialOption   grpc.DialOption
+	Masters        []pb.ServerAddress
+	Filer          pb.ServerAddress
+	Port           int
+	GrpcDialOption grpc.DialOption
 }
 
 type IamApiServer struct {
@@ -51,7 +49,7 @@ var s3ApiConfigure IamS3ApiConfig
 func NewIamApiServer(router *mux.Router, option *IamServerOption) (iamApiServer *IamApiServer, err error) {
 	s3ApiConfigure = IamS3ApiConfigure{
 		option:       option,
-		masterClient: wdclient.NewMasterClient(option.GrpcDialOption, pb.AdminShellClient, "", 0, "", strings.Split(option.Masters, ",")),
+		masterClient: wdclient.NewMasterClient(option.GrpcDialOption, pb.AdminShellClient, "", "", option.Masters),
 	}
 	s3Option := s3api.S3ApiServerOption{Filer: option.Filer}
 	iamApiServer = &IamApiServer{
@@ -78,7 +76,7 @@ func (iama *IamApiServer) registerRouter(router *mux.Router) {
 
 func (iam IamS3ApiConfigure) GetS3ApiConfiguration(s3cfg *iam_pb.S3ApiConfiguration) (err error) {
 	var buf bytes.Buffer
-	err = pb.WithGrpcFilerClient(iam.option.FilerGrpcAddress, iam.option.GrpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
+	err = pb.WithGrpcFilerClient(iam.option.Filer, iam.option.GrpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
 		if err = filer.ReadEntry(iam.masterClient, client, filer.IamConfigDirecotry, filer.IamIdentityFile, &buf); err != nil {
 			return err
 		}
@@ -101,7 +99,7 @@ func (iam IamS3ApiConfigure) PutS3ApiConfiguration(s3cfg *iam_pb.S3ApiConfigurat
 		return fmt.Errorf("ProtoToText: %s", err)
 	}
 	return pb.WithGrpcFilerClient(
-		iam.option.FilerGrpcAddress,
+		iam.option.Filer,
 		iam.option.GrpcDialOption,
 		func(client filer_pb.SeaweedFilerClient) error {
 			err = util.Retry("saveIamIdentity", func() error {
@@ -117,7 +115,7 @@ func (iam IamS3ApiConfigure) PutS3ApiConfiguration(s3cfg *iam_pb.S3ApiConfigurat
 
 func (iam IamS3ApiConfigure) GetPolicies(policies *Policies) (err error) {
 	var buf bytes.Buffer
-	err = pb.WithGrpcFilerClient(iam.option.FilerGrpcAddress, iam.option.GrpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
+	err = pb.WithGrpcFilerClient(iam.option.Filer, iam.option.GrpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
 		if err = filer.ReadEntry(iam.masterClient, client, filer.IamConfigDirecotry, filer.IamPoliciesFile, &buf); err != nil {
 			return err
 		}
@@ -142,7 +140,7 @@ func (iam IamS3ApiConfigure) PutPolicies(policies *Policies) (err error) {
 		return err
 	}
 	return pb.WithGrpcFilerClient(
-		iam.option.FilerGrpcAddress,
+		iam.option.Filer,
 		iam.option.GrpcDialOption,
 		func(client filer_pb.SeaweedFilerClient) error {
 			if err := filer.SaveInsideFiler(client, filer.IamConfigDirecotry, filer.IamPoliciesFile, b); err != nil {

weed/messaging/broker/broker_append.go

@@ -71,8 +71,9 @@ func (broker *MessageBroker) assignAndUpload(topicConfig *messaging_pb.TopicConf
 
 			assignResult.Auth = security.EncodedJwt(resp.Auth)
 			assignResult.Fid = resp.FileId
-			assignResult.Url = resp.Url
-			assignResult.PublicUrl = resp.PublicUrl
+			assignResult.Url = resp.Location.Url
+			assignResult.PublicUrl = resp.Location.PublicUrl
+			assignResult.GrpcPort = int(resp.Location.GrpcPort)
 			assignResult.Count = uint64(resp.Count)
 
 			return nil
@@ -88,7 +89,16 @@ func (broker *MessageBroker) assignAndUpload(topicConfig *messaging_pb.TopicConf
 
 	// upload data
 	targetUrl := fmt.Sprintf("http://%s/%s", assignResult.Url, assignResult.Fid)
-	uploadResult, err := operation.UploadData(targetUrl, "", broker.option.Cipher, data, false, "", nil, assignResult.Auth)
+	uploadOption := &operation.UploadOption{
+		UploadUrl:         targetUrl,
+		Filename:          "",
+		Cipher:            broker.option.Cipher,
+		IsInputCompressed: false,
+		MimeType:          "",
+		PairMap:           nil,
+		Jwt:               assignResult.Auth,
+	}
+	uploadResult, err := operation.UploadData(data, uploadOption)
 	if err != nil {
 		return nil, nil, fmt.Errorf("upload data %s: %v", targetUrl, err)
 	}

weed/messaging/broker/broker_grpc_server_discovery.go

@@ -3,6 +3,7 @@ package broker
 import (
 	"context"
 	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/pb"
 	"time"
 
 	"github.com/chrislusf/seaweedfs/weed/glog"
@@ -62,7 +63,7 @@ func (broker *MessageBroker) FindBroker(c context.Context, request *messaging_pb
 func (broker *MessageBroker) checkFilers() {
 
 	// contact a filer about masters
-	var masters []string
+	var masters []pb.ServerAddress
 	found := false
 	for !found {
 		for _, filer := range broker.option.Filers {
@@ -71,7 +72,9 @@ func (broker *MessageBroker) checkFilers() {
 				if err != nil {
 					return err
 				}
-				masters = append(masters, resp.Masters...)
+				for _, m := range resp.Masters {
+					masters = append(masters, pb.ServerAddress(m))
+				}
 				return nil
 			})
 			if err == nil {
@@ -85,7 +88,7 @@ func (broker *MessageBroker) checkFilers() {
 	glog.V(0).Infof("received master list: %s", masters)
 
 	// contact each masters for filers
-	var filers []string
+	var filers []pb.ServerAddress
 	found = false
 	for !found {
 		for _, master := range masters {
@@ -97,7 +100,7 @@ func (broker *MessageBroker) checkFilers() {
 					return err
 				}
 
-				filers = append(filers, resp.GrpcAddresses...)
+				filers = append(filers, pb.FromAddressStrings(resp.GrpcAddresses)...)
 
 				return nil
 			})

weed/messaging/broker/broker_server.go

@@ -13,7 +13,7 @@ import (
 )
 
 type MessageBrokerOption struct {
-	Filers             []string
+	Filers             []pb.ServerAddress
 	DefaultReplication string
 	MaxMB              int
 	Ip                 string
@@ -99,13 +99,13 @@ func (broker *MessageBroker) keepConnectedToOneFiler() {
 
 }
 
-func (broker *MessageBroker) withFilerClient(filer string, fn func(filer_pb.SeaweedFilerClient) error) error {
+func (broker *MessageBroker) withFilerClient(filer pb.ServerAddress, fn func(filer_pb.SeaweedFilerClient) error) error {
 
 	return pb.WithFilerClient(filer, broker.grpcDialOption, fn)
 
 }
 
-func (broker *MessageBroker) withMasterClient(master string, fn func(client master_pb.SeaweedClient) error) error {
+func (broker *MessageBroker) withMasterClient(master pb.ServerAddress, fn func(client master_pb.SeaweedClient) error) error {
 
 	return pb.WithMasterClient(master, broker.grpcDialOption, func(client master_pb.SeaweedClient) error {
 		return fn(client)

weed/operation/assign_file_id.go

@@ -3,6 +3,7 @@ package operation
 import (
 	"context"
 	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/pb"
 	"github.com/chrislusf/seaweedfs/weed/storage/needle"
 	"google.golang.org/grpc"
 
@@ -26,9 +27,11 @@ type AssignResult struct {
 	Fid       string              `json:"fid,omitempty"`
 	Url       string              `json:"url,omitempty"`
 	PublicUrl string              `json:"publicUrl,omitempty"`
+	GrpcPort  int                 `json:"grpcPort,omitempty"`
 	Count     uint64              `json:"count,omitempty"`
 	Error     string              `json:"error,omitempty"`
 	Auth      security.EncodedJwt `json:"auth,omitempty"`
+	Replicas  []Location          `json:"replicas,omitempty"`
 }
 
 func Assign(masterFn GetMasterFn, grpcDialOption grpc.DialOption, primaryRequest *VolumeAssignRequest, alternativeRequests ...*VolumeAssignRequest) (*AssignResult, error) {
@@ -65,10 +68,17 @@ func Assign(masterFn GetMasterFn, grpcDialOption grpc.DialOption, primaryRequest
 
 			ret.Count = resp.Count
 			ret.Fid = resp.Fid
-			ret.Url = resp.Url
-			ret.PublicUrl = resp.PublicUrl
+			ret.Url = resp.Location.Url
+			ret.PublicUrl = resp.Location.PublicUrl
+			ret.GrpcPort = int(resp.Location.GrpcPort)
 			ret.Error = resp.Error
 			ret.Auth = security.EncodedJwt(resp.Auth)
+			for _, r := range resp.Replicas {
+				ret.Replicas = append(ret.Replicas, Location{
+					Url:       r.Url,
+					PublicUrl: r.PublicUrl,
+				})
+			}
 
 			if resp.Error != "" {
 				return fmt.Errorf("assignRequest: %v", resp.Error)
@@ -93,7 +103,7 @@ func Assign(masterFn GetMasterFn, grpcDialOption grpc.DialOption, primaryRequest
 	return ret, lastError
 }
 
-func LookupJwt(master string, grpcDialOption grpc.DialOption, fileId string) (token security.EncodedJwt) {
+func LookupJwt(master pb.ServerAddress, grpcDialOption grpc.DialOption, fileId string) (token security.EncodedJwt) {
 
 	WithMasterServerClient(master, grpcDialOption, func(masterClient master_pb.SeaweedClient) error {
 

weed/operation/chunked_file.go

@@ -4,6 +4,7 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/pb"
 	"io"
 	"io/ioutil"
 	"net/http"
@@ -42,7 +43,7 @@ type ChunkManifest struct {
 type ChunkedFileReader struct {
 	totalSize      int64
 	chunkList      []*ChunkInfo
-	master         string
+	master         pb.ServerAddress
 	pos            int64
 	pr             *io.PipeReader
 	pw             *io.PipeWriter
@@ -127,7 +128,7 @@ func readChunkNeedle(fileUrl string, w io.Writer, offset int64, jwt string) (wri
 	return io.Copy(w, resp.Body)
 }
 
-func NewChunkedFileReader(chunkList []*ChunkInfo, master string, grpcDialOption grpc.DialOption) *ChunkedFileReader {
+func NewChunkedFileReader(chunkList []*ChunkInfo, master pb.ServerAddress, grpcDialOption grpc.DialOption) *ChunkedFileReader {
 	var totalSize int64
 	for _, chunk := range chunkList {
 		totalSize += chunk.Size
@@ -176,7 +177,7 @@ func (cf *ChunkedFileReader) WriteTo(w io.Writer) (n int64, err error) {
 	for ; chunkIndex < len(cf.chunkList); chunkIndex++ {
 		ci := cf.chunkList[chunkIndex]
 		// if we need read date from local volume server first?
-		fileUrl, jwt, lookupError := LookupFileId(func() string {
+		fileUrl, jwt, lookupError := LookupFileId(func() pb.ServerAddress {
 			return cf.master
 		}, cf.grpcDialOption, ci.Fid)
 		if lookupError != nil {

weed/operation/delete_content.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/pb"
 	"google.golang.org/grpc"
 	"net/http"
 	"strings"
@@ -74,7 +75,7 @@ func DeleteFilesWithLookupVolumeId(grpcDialOption grpc.DialOption, fileIds []str
 		return ret, err
 	}
 
-	server_to_fileIds := make(map[string][]string)
+	server_to_fileIds := make(map[pb.ServerAddress][]string)
 	for vid, result := range lookupResults {
 		if result.Error != "" {
 			ret = append(ret, &volume_server_pb.DeleteResult{
@@ -85,11 +86,12 @@ func DeleteFilesWithLookupVolumeId(grpcDialOption grpc.DialOption, fileIds []str
 			continue
 		}
 		for _, location := range result.Locations {
-			if _, ok := server_to_fileIds[location.Url]; !ok {
-				server_to_fileIds[location.Url] = make([]string, 0)
+			serverAddress := location.ServerAddress()
+			if _, ok := server_to_fileIds[serverAddress]; !ok {
+				server_to_fileIds[serverAddress] = make([]string, 0)
 			}
-			server_to_fileIds[location.Url] = append(
-				server_to_fileIds[location.Url], vid_to_fileIds[vid]...)
+			server_to_fileIds[serverAddress] = append(
+				server_to_fileIds[serverAddress], vid_to_fileIds[vid]...)
 		}
 	}
 
@@ -97,7 +99,7 @@ func DeleteFilesWithLookupVolumeId(grpcDialOption grpc.DialOption, fileIds []str
 	var wg sync.WaitGroup
 	for server, fidList := range server_to_fileIds {
 		wg.Add(1)
-		go func(server string, fidList []string) {
+		go func(server pb.ServerAddress, fidList []string) {
 			defer wg.Done()
 
 			if deleteResults, deleteErr := DeleteFilesAtOneVolumeServer(server, grpcDialOption, fidList, false); deleteErr != nil {
@@ -119,7 +121,7 @@ func DeleteFilesWithLookupVolumeId(grpcDialOption grpc.DialOption, fileIds []str
 }
 
 // DeleteFilesAtOneVolumeServer deletes a list of files that is on one volume server via gRpc
-func DeleteFilesAtOneVolumeServer(volumeServer string, grpcDialOption grpc.DialOption, fileIds []string, includeCookie bool) (ret []*volume_server_pb.DeleteResult, err error) {
+func DeleteFilesAtOneVolumeServer(volumeServer pb.ServerAddress, grpcDialOption grpc.DialOption, fileIds []string, includeCookie bool) (ret []*volume_server_pb.DeleteResult, err error) {
 
 	err = WithVolumeServerClient(volumeServer, grpcDialOption, func(volumeServerClient volume_server_pb.VolumeServerClient) error {
 

weed/operation/grpc_client.go

@@ -1,67 +1,27 @@
 package operation
 
 import (
-	"fmt"
-	"strconv"
-	"strings"
-
 	"google.golang.org/grpc"
 
-	"github.com/chrislusf/seaweedfs/weed/glog"
 	"github.com/chrislusf/seaweedfs/weed/pb"
-	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
 	"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
 	"github.com/chrislusf/seaweedfs/weed/pb/volume_server_pb"
 )
 
-func WithVolumeServerClient(volumeServer string, grpcDialOption grpc.DialOption, fn func(volume_server_pb.VolumeServerClient) error) error {
-
-	grpcAddress, err := toVolumeServerGrpcAddress(volumeServer)
-	if err != nil {
-		return fmt.Errorf("failed to parse volume server %v: %v", volumeServer, err)
-	}
+func WithVolumeServerClient(volumeServer pb.ServerAddress, grpcDialOption grpc.DialOption, fn func(volume_server_pb.VolumeServerClient) error) error {
 
 	return pb.WithCachedGrpcClient(func(grpcConnection *grpc.ClientConn) error {
 		client := volume_server_pb.NewVolumeServerClient(grpcConnection)
 		return fn(client)
-	}, grpcAddress, grpcDialOption)
+	}, volumeServer.ToGrpcAddress(), grpcDialOption)
 
 }
 
-func toVolumeServerGrpcAddress(volumeServer string) (grpcAddress string, err error) {
-	sepIndex := strings.LastIndex(volumeServer, ":")
-	port, err := strconv.Atoi(volumeServer[sepIndex+1:])
-	if err != nil {
-		glog.Errorf("failed to parse volume server address: %v", volumeServer)
-		return "", err
-	}
-	return fmt.Sprintf("%s:%d", volumeServer[0:sepIndex], port+10000), nil
-}
-
-func WithMasterServerClient(masterServer string, grpcDialOption grpc.DialOption, fn func(masterClient master_pb.SeaweedClient) error) error {
-
-	masterGrpcAddress, parseErr := pb.ParseServerToGrpcAddress(masterServer)
-	if parseErr != nil {
-		return fmt.Errorf("failed to parse master %v: %v", masterServer, parseErr)
-	}
+func WithMasterServerClient(masterServer pb.ServerAddress, grpcDialOption grpc.DialOption, fn func(masterClient master_pb.SeaweedClient) error) error {
 
 	return pb.WithCachedGrpcClient(func(grpcConnection *grpc.ClientConn) error {
 		client := master_pb.NewSeaweedClient(grpcConnection)
 		return fn(client)
-	}, masterGrpcAddress, grpcDialOption)
-
-}
-
-func WithFilerServerClient(filerServer string, grpcDialOption grpc.DialOption, fn func(masterClient filer_pb.SeaweedFilerClient) error) error {
-
-	filerGrpcAddress, parseErr := pb.ParseServerToGrpcAddress(filerServer)
-	if parseErr != nil {
-		return fmt.Errorf("failed to parse filer %v: %v", filerGrpcAddress, parseErr)
-	}
-
-	return pb.WithCachedGrpcClient(func(grpcConnection *grpc.ClientConn) error {
-		client := filer_pb.NewSeaweedFilerClient(grpcConnection)
-		return fn(client)
-	}, filerGrpcAddress, grpcDialOption)
+	}, masterServer.ToGrpcAddress(), grpcDialOption)
 
 }

weed/operation/lookup.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/pb"
 	"google.golang.org/grpc"
 	"math/rand"
 	"strings"
@@ -15,7 +16,13 @@ import (
 type Location struct {
 	Url       string `json:"url,omitempty"`
 	PublicUrl string `json:"publicUrl,omitempty"`
+	GrpcPort  int    `json:"grpcPort,omitempty"`
 }
+
+func (l *Location) ServerAddress() pb.ServerAddress {
+	return pb.NewServerAddressWithGrpcPort(l.Url, l.GrpcPort)
+}
+
 type LookupResult struct {
 	VolumeOrFileId string     `json:"volumeOrFileId,omitempty"`
 	Locations      []Location `json:"locations,omitempty"`
@@ -89,6 +96,7 @@ func LookupVolumeIds(masterFn GetMasterFn, grpcDialOption grpc.DialOption, vids
 				locations = append(locations, Location{
 					Url:       loc.Url,
 					PublicUrl: loc.PublicUrl,
+					GrpcPort:  int(loc.GrpcPort),
 				})
 			}
 			if vidLocations.Error != "" {

weed/operation/needle_parse_test.go

@@ -53,7 +53,16 @@ func TestCreateNeedleFromRequest(t *testing.T) {
 			assert.Equal(t, true, util.IsGzippedContent(n.Data), "this should be gzip")
 			fmt.Printf("needle: %v, originalSize: %d\n", n, originalSize)
 		}
-		uploadResult, err, data := Upload("http://localhost:8080/389,0f084d17353afda0", "t.txt", false, bytes.NewReader([]byte(textContent)), false, "", nil, "")
+		uploadOption := &UploadOption{
+			UploadUrl:         "http://localhost:8080/389,0f084d17353afda0",
+			Filename:          "t.txt",
+			Cipher:            false,
+			IsInputCompressed: false,
+			MimeType:          "",
+			PairMap:           nil,
+			Jwt:               "",
+		}
+		uploadResult, err, data := Upload(bytes.NewReader([]byte(textContent)), uploadOption)
 		if len(data) != len(textContent) {
 			t.Errorf("data actual %d expected %d", len(data), len(textContent))
 		}
@@ -72,7 +81,16 @@ func TestCreateNeedleFromRequest(t *testing.T) {
 			fmt.Printf("needle: %v, dataSize:%d originalSize:%d\n", n, len(n.Data), originalSize)
 		}
 		gzippedData, _ := util.GzipData([]byte(textContent))
-		Upload("http://localhost:8080/389,0f084d17353afda0", "t.txt", false, bytes.NewReader(gzippedData), true, "text/plain", nil, "")
+		uploadOption := &UploadOption{
+			UploadUrl:         "http://localhost:8080/389,0f084d17353afda0",
+			Filename:          "t.txt",
+			Cipher:            false,
+			IsInputCompressed: true,
+			MimeType:          "text/plain",
+			PairMap:           nil,
+			Jwt:               "",
+		}
+		Upload(bytes.NewReader(gzippedData), uploadOption)
 	}
 
 	/*

weed/operation/submit.go

@@ -1,6 +1,7 @@
 package operation
 
 import (
+	"github.com/chrislusf/seaweedfs/weed/pb"
 	"io"
 	"mime"
 	"net/url"
@@ -39,7 +40,7 @@ type SubmitResult struct {
 	Error    string `json:"error,omitempty"`
 }
 
-type GetMasterFn func() string
+type GetMasterFn func() pb.ServerAddress
 
 func SubmitFiles(masterFn GetMasterFn, grpcDialOption grpc.DialOption, files []FilePart, replication string, collection string, dataCenter string, ttl string, diskType string, maxMB int, usePublicUrl bool) ([]SubmitResult, error) {
 	results := make([]SubmitResult, len(files))
@@ -206,7 +207,16 @@ func (fi FilePart) Upload(maxMB int, masterFn GetMasterFn, usePublicUrl bool, jw
 			cm.DeleteChunks(masterFn, usePublicUrl, grpcDialOption)
 		}
 	} else {
-		ret, e, _ := Upload(fileUrl, baseName, false, fi.Reader, false, fi.MimeType, nil, jwt)
+		uploadOption := &UploadOption{
+			UploadUrl:         fileUrl,
+			Filename:          baseName,
+			Cipher:            false,
+			IsInputCompressed: false,
+			MimeType:          fi.MimeType,
+			PairMap:           nil,
+			Jwt:               jwt,
+		}
+		ret, e, _ := Upload(fi.Reader, uploadOption)
 		if e != nil {
 			return 0, e
 		}
@@ -219,7 +229,16 @@ func upload_one_chunk(filename string, reader io.Reader, masterFn GetMasterFn,
 	fileUrl string, jwt security.EncodedJwt,
 ) (size uint32, e error) {
 	glog.V(4).Info("Uploading part ", filename, " to ", fileUrl, "...")
-	uploadResult, uploadError, _ := Upload(fileUrl, filename, false, reader, false, "", nil, jwt)
+	uploadOption := &UploadOption{
+		UploadUrl:         fileUrl,
+		Filename:          filename,
+		Cipher:            false,
+		IsInputCompressed: false,
+		MimeType:          "",
+		PairMap:           nil,
+		Jwt:               jwt,
+	}
+	uploadResult, uploadError, _ := Upload(reader, uploadOption)
 	if uploadError != nil {
 		return 0, uploadError
 	}
@@ -236,6 +255,15 @@ func upload_chunked_file_manifest(fileUrl string, manifest *ChunkManifest, jwt s
 	q := u.Query()
 	q.Set("cm", "true")
 	u.RawQuery = q.Encode()
-	_, e = UploadData(u.String(), manifest.Name, false, buf, false, "application/json", nil, jwt)
+	uploadOption := &UploadOption{
+		UploadUrl:         u.String(),
+		Filename:          manifest.Name,
+		Cipher:            false,
+		IsInputCompressed: false,
+		MimeType:          "application/json",
+		PairMap:           nil,
+		Jwt:               jwt,
+	}
+	_, e = UploadData(buf, uploadOption)
 	return e
 }

weed/operation/sync_volume.go

@@ -2,11 +2,12 @@ package operation
 
 import (
 	"context"
+	"github.com/chrislusf/seaweedfs/weed/pb"
 	"github.com/chrislusf/seaweedfs/weed/pb/volume_server_pb"
 	"google.golang.org/grpc"
 )
 
-func GetVolumeSyncStatus(server string, grpcDialOption grpc.DialOption, vid uint32) (resp *volume_server_pb.VolumeSyncStatusResponse, err error) {
+func GetVolumeSyncStatus(server pb.ServerAddress, grpcDialOption grpc.DialOption, vid uint32) (resp *volume_server_pb.VolumeSyncStatusResponse, err error) {
 
 	WithVolumeServerClient(server, grpcDialOption, func(client volume_server_pb.VolumeServerClient) error {
 

weed/operation/tail_volume.go

@@ -3,6 +3,7 @@ package operation
 import (
 	"context"
 	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/pb"
 	"io"
 
 	"google.golang.org/grpc"
@@ -21,12 +22,12 @@ func TailVolume(masterFn GetMasterFn, grpcDialOption grpc.DialOption, vid needle
 		return fmt.Errorf("unable to locate volume %d", vid)
 	}
 
-	volumeServer := lookup.Locations[0].Url
+	volumeServer := lookup.Locations[0].ServerAddress()
 
 	return TailVolumeFromSource(volumeServer, grpcDialOption, vid, sinceNs, timeoutSeconds, fn)
 }
 
-func TailVolumeFromSource(volumeServer string, grpcDialOption grpc.DialOption, vid needle.VolumeId, sinceNs uint64, idleTimeoutSeconds int, fn func(n *needle.Needle) error) error {
+func TailVolumeFromSource(volumeServer pb.ServerAddress, grpcDialOption grpc.DialOption, vid needle.VolumeId, sinceNs uint64, idleTimeoutSeconds int, fn func(n *needle.Needle) error) error {
 	return WithVolumeServerClient(volumeServer, grpcDialOption, func(client volume_server_pb.VolumeServerClient) error {
 		ctx, cancel := context.WithCancel(context.Background())
 		defer cancel()

weed/operation/upload_content.go

@@ -20,6 +20,16 @@ import (
 	"github.com/chrislusf/seaweedfs/weed/util"
 )
 
+type UploadOption struct {
+	UploadUrl         string
+	Filename          string
+	Cipher            bool
+	IsInputCompressed bool
+	MimeType          string
+	PairMap           map[string]string
+	Jwt               security.EncodedJwt
+}
+
 type UploadResult struct {
 	Name       string `json:"name,omitempty"`
 	Size       uint32 `json:"size,omitempty"`
@@ -65,18 +75,18 @@ func init() {
 var fileNameEscaper = strings.NewReplacer(`\`, `\\`, `"`, `\"`)
 
 // Upload sends a POST request to a volume server to upload the content with adjustable compression level
-func UploadData(uploadUrl string, filename string, cipher bool, data []byte, isInputCompressed bool, mtype string, pairMap map[string]string, jwt security.EncodedJwt) (uploadResult *UploadResult, err error) {
-	uploadResult, err = retriedUploadData(uploadUrl, filename, cipher, data, isInputCompressed, mtype, pairMap, jwt)
+func UploadData(data []byte, option *UploadOption) (uploadResult *UploadResult, err error) {
+	uploadResult, err = retriedUploadData(data, option)
 	return
 }
 
 // Upload sends a POST request to a volume server to upload the content with fast compression
-func Upload(uploadUrl string, filename string, cipher bool, reader io.Reader, isInputCompressed bool, mtype string, pairMap map[string]string, jwt security.EncodedJwt) (uploadResult *UploadResult, err error, data []byte) {
-	uploadResult, err, data = doUpload(uploadUrl, filename, cipher, reader, isInputCompressed, mtype, pairMap, jwt)
+func Upload(reader io.Reader, option *UploadOption) (uploadResult *UploadResult, err error, data []byte) {
+	uploadResult, err, data = doUpload(reader, option)
 	return
 }
 
-func doUpload(uploadUrl string, filename string, cipher bool, reader io.Reader, isInputCompressed bool, mtype string, pairMap map[string]string, jwt security.EncodedJwt) (uploadResult *UploadResult, err error, data []byte) {
+func doUpload(reader io.Reader, option *UploadOption) (uploadResult *UploadResult, err error, data []byte) {
 	bytesReader, ok := reader.(*util.BytesReader)
 	if ok {
 		data = bytesReader.Bytes
@@ -87,38 +97,38 @@ func doUpload(uploadUrl string, filename string, cipher bool, reader io.Reader,
 			return
 		}
 	}
-	uploadResult, uploadErr := retriedUploadData(uploadUrl, filename, cipher, data, isInputCompressed, mtype, pairMap, jwt)
+	uploadResult, uploadErr := retriedUploadData(data, option)
 	return uploadResult, uploadErr, data
 }
 
-func retriedUploadData(uploadUrl string, filename string, cipher bool, data []byte, isInputCompressed bool, mtype string, pairMap map[string]string, jwt security.EncodedJwt) (uploadResult *UploadResult, err error) {
+func retriedUploadData(data []byte, option *UploadOption) (uploadResult *UploadResult, err error) {
 	for i := 0; i < 3; i++ {
-		uploadResult, err = doUploadData(uploadUrl, filename, cipher, data, isInputCompressed, mtype, pairMap, jwt)
+		uploadResult, err = doUploadData(data, option)
 		if err == nil {
 			uploadResult.RetryCount = i
 			return
 		} else {
-			glog.Warningf("uploading to %s: %v", uploadUrl, err)
+			glog.Warningf("uploading to %s: %v", option.UploadUrl, err)
 		}
 		time.Sleep(time.Millisecond * time.Duration(237*(i+1)))
 	}
 	return
 }
 
-func doUploadData(uploadUrl string, filename string, cipher bool, data []byte, isInputCompressed bool, mtype string, pairMap map[string]string, jwt security.EncodedJwt) (uploadResult *UploadResult, err error) {
-	contentIsGzipped := isInputCompressed
+func doUploadData(data []byte, option *UploadOption) (uploadResult *UploadResult, err error) {
+	contentIsGzipped := option.IsInputCompressed
 	shouldGzipNow := false
-	if !isInputCompressed {
-		if mtype == "" {
-			mtype = http.DetectContentType(data)
-			// println("detect1 mimetype to", mtype)
-			if mtype == "application/octet-stream" {
-				mtype = ""
+	if !option.IsInputCompressed {
+		if option.MimeType == "" {
+			option.MimeType = http.DetectContentType(data)
+			// println("detect1 mimetype to", MimeType)
+			if option.MimeType == "application/octet-stream" {
+				option.MimeType = ""
 			}
 		}
-		if shouldBeCompressed, iAmSure := util.IsCompressableFileType(filepath.Base(filename), mtype); iAmSure && shouldBeCompressed {
+		if shouldBeCompressed, iAmSure := util.IsCompressableFileType(filepath.Base(option.Filename), option.MimeType); iAmSure && shouldBeCompressed {
 			shouldGzipNow = true
-		} else if !iAmSure && mtype == "" && len(data) > 16*1024 {
+		} else if !iAmSure && option.MimeType == "" && len(data) > 16*1024 {
 			var compressed []byte
 			compressed, err = util.GzipData(data[0:128])
 			shouldGzipNow = len(compressed)*10 < 128*9 // can not compress to less than 90%
@@ -131,14 +141,14 @@ func doUploadData(uploadUrl string, filename string, cipher bool, data []byte, i
 	// this could be double copying
 	clearDataLen = len(data)
 	clearData := data
-	if shouldGzipNow && !cipher {
+	if shouldGzipNow && !option.Cipher {
 		compressed, compressErr := util.GzipData(data)
 		// fmt.Printf("data is compressed from %d ==> %d\n", len(data), len(compressed))
 		if compressErr == nil {
 			data = compressed
 			contentIsGzipped = true
 		}
-	} else if isInputCompressed {
+	} else if option.IsInputCompressed {
 		// just to get the clear data length
 		clearData, err = util.DecompressData(data)
 		if err == nil {
@@ -146,7 +156,7 @@ func doUploadData(uploadUrl string, filename string, cipher bool, data []byte, i
 		}
 	}
 
-	if cipher {
+	if option.Cipher {
 		// encrypt(gzip(data))
 
 		// encrypt
@@ -158,23 +168,39 @@ func doUploadData(uploadUrl string, filename string, cipher bool, data []byte, i
 		}
 
 		// upload data
-		uploadResult, err = upload_content(uploadUrl, func(w io.Writer) (err error) {
+		uploadResult, err = upload_content(func(w io.Writer) (err error) {
 			_, err = w.Write(encryptedData)
 			return
-		}, "", false, len(encryptedData), "", nil, jwt)
+		}, len(encryptedData), &UploadOption{
+			UploadUrl:         option.UploadUrl,
+			Filename:          "",
+			Cipher:            false,
+			IsInputCompressed: false,
+			MimeType:          "",
+			PairMap:           nil,
+			Jwt:               option.Jwt,
+		})
 		if uploadResult == nil {
 			return
 		}
-		uploadResult.Name = filename
-		uploadResult.Mime = mtype
+		uploadResult.Name = option.Filename
+		uploadResult.Mime = option.MimeType
 		uploadResult.CipherKey = cipherKey
 		uploadResult.Size = uint32(clearDataLen)
 	} else {
 		// upload data
-		uploadResult, err = upload_content(uploadUrl, func(w io.Writer) (err error) {
+		uploadResult, err = upload_content(func(w io.Writer) (err error) {
 			_, err = w.Write(data)
 			return
-		}, filename, contentIsGzipped, len(data), mtype, pairMap, jwt)
+		}, len(data), &UploadOption{
+			UploadUrl:         option.UploadUrl,
+			Filename:          option.Filename,
+			Cipher:            false,
+			IsInputCompressed: contentIsGzipped,
+			MimeType:          option.MimeType,
+			PairMap:           option.PairMap,
+			Jwt:               option.Jwt,
+		})
 		if uploadResult == nil {
 			return
 		}
@@ -187,20 +213,20 @@ func doUploadData(uploadUrl string, filename string, cipher bool, data []byte, i
 	return uploadResult, err
 }
 
-func upload_content(uploadUrl string, fillBufferFunction func(w io.Writer) error, filename string, isGzipped bool, originalDataSize int, mtype string, pairMap map[string]string, jwt security.EncodedJwt) (*UploadResult, error) {
+func upload_content(fillBufferFunction func(w io.Writer) error, originalDataSize int, option *UploadOption) (*UploadResult, error) {
 	buf := GetBuffer()
 	defer PutBuffer(buf)
 	body_writer := multipart.NewWriter(buf)
 	h := make(textproto.MIMEHeader)
-	h.Set("Content-Disposition", fmt.Sprintf(`form-data; name="file"; filename="%s"`, fileNameEscaper.Replace(filename)))
-	h.Set("Idempotency-Key", uploadUrl)
-	if mtype == "" {
-		mtype = mime.TypeByExtension(strings.ToLower(filepath.Ext(filename)))
+	h.Set("Content-Disposition", fmt.Sprintf(`form-data; name="file"; filename="%s"`, fileNameEscaper.Replace(option.Filename)))
+	h.Set("Idempotency-Key", option.UploadUrl)
+	if option.MimeType == "" {
+		option.MimeType = mime.TypeByExtension(strings.ToLower(filepath.Ext(option.Filename)))
 	}
-	if mtype != "" {
-		h.Set("Content-Type", mtype)
+	if option.MimeType != "" {
+		h.Set("Content-Type", option.MimeType)
 	}
-	if isGzipped {
+	if option.IsInputCompressed {
 		h.Set("Content-Encoding", "gzip")
 	}
 
@@ -219,17 +245,17 @@ func upload_content(uploadUrl string, fillBufferFunction func(w io.Writer) error
 		return nil, err
 	}
 
-	req, postErr := http.NewRequest("POST", uploadUrl, bytes.NewReader(buf.Bytes()))
+	req, postErr := http.NewRequest("POST", option.UploadUrl, bytes.NewReader(buf.Bytes()))
 	if postErr != nil {
-		glog.V(1).Infof("create upload request %s: %v", uploadUrl, postErr)
-		return nil, fmt.Errorf("create upload request %s: %v", uploadUrl, postErr)
+		glog.V(1).Infof("create upload request %s: %v", option.UploadUrl, postErr)
+		return nil, fmt.Errorf("create upload request %s: %v", option.UploadUrl, postErr)
 	}
 	req.Header.Set("Content-Type", content_type)
-	for k, v := range pairMap {
+	for k, v := range option.PairMap {
 		req.Header.Set(k, v)
 	}
-	if jwt != "" {
-		req.Header.Set("Authorization", "BEARER "+string(jwt))
+	if option.Jwt != "" {
+		req.Header.Set("Authorization", "BEARER "+string(option.Jwt))
 	}
 	// print("+")
 	resp, post_err := HttpClient.Do(req)
@@ -240,7 +266,7 @@ func upload_content(uploadUrl string, fillBufferFunction func(w io.Writer) error
 		}
 	}
 	if post_err != nil {
-		return nil, fmt.Errorf("upload %s %d bytes to %v: %v", filename, originalDataSize, uploadUrl, post_err)
+		return nil, fmt.Errorf("upload %s %d bytes to %v: %v", option.Filename, originalDataSize, option.UploadUrl, post_err)
 	}
 	// print("-")
 	defer util.CloseResponse(resp)
@@ -254,16 +280,16 @@ func upload_content(uploadUrl string, fillBufferFunction func(w io.Writer) error
 
 	resp_body, ra_err := ioutil.ReadAll(resp.Body)
 	if ra_err != nil {
-		return nil, fmt.Errorf("read response body %v: %v", uploadUrl, ra_err)
+		return nil, fmt.Errorf("read response body %v: %v", option.UploadUrl, ra_err)
 	}
 
 	unmarshal_err := json.Unmarshal(resp_body, &ret)
 	if unmarshal_err != nil {
-		glog.Errorf("unmarshal %s: %v", uploadUrl, string(resp_body))
-		return nil, fmt.Errorf("unmarshal %v: %v", uploadUrl, unmarshal_err)
+		glog.Errorf("unmarshal %s: %v", option.UploadUrl, string(resp_body))
+		return nil, fmt.Errorf("unmarshal %v: %v", option.UploadUrl, unmarshal_err)
 	}
 	if ret.Error != "" {
-		return nil, fmt.Errorf("unmarshalled error %v: %v", uploadUrl, ret.Error)
+		return nil, fmt.Errorf("unmarshalled error %v: %v", option.UploadUrl, ret.Error)
 	}
 	ret.ETag = etag
 	ret.ContentMd5 = resp.Header.Get("Content-MD5")

weed/pb/Makefile

@@ -6,6 +6,7 @@ gen:
 	protoc master.proto --go_out=plugins=grpc:./master_pb --go_opt=paths=source_relative
 	protoc volume_server.proto --go_out=plugins=grpc:./volume_server_pb --go_opt=paths=source_relative
 	protoc filer.proto --go_out=plugins=grpc:./filer_pb --go_opt=paths=source_relative
+	protoc remote.proto --go_out=plugins=grpc:./remote_pb --go_opt=paths=source_relative
 	protoc iam.proto --go_out=plugins=grpc:./iam_pb --go_opt=paths=source_relative
 	protoc messaging.proto --go_out=plugins=grpc:./messaging_pb --go_opt=paths=source_relative
 	# protoc filer.proto --java_out=../../other/java/client/src/main/java

weed/pb/filer.proto

@@ -238,13 +238,12 @@ message AssignVolumeRequest {
 
 message AssignVolumeResponse {
     string file_id = 1;
-    string url = 2;
-    string public_url = 3;
     int32 count = 4;
     string auth = 5;
     string collection = 6;
     string replication = 7;
     string error = 8;
+    Location location = 9;
 }
 
 message LookupVolumeRequest {
@@ -258,6 +257,7 @@ message Locations {
 message Location {
     string url = 1;
     string public_url = 2;
+    uint32 grpc_port = 3;
 }
 message LookupVolumeResponse {
     map<string, Locations> locations_map = 1;
@@ -305,6 +305,7 @@ message GetFilerConfigurationResponse {
     string metrics_address = 9;
     int32 metrics_interval_sec = 10;
     string version = 11;
+    string cluster_id = 12;
 }
 
 message SubscribeMetadataRequest {
@@ -312,6 +313,7 @@ message SubscribeMetadataRequest {
     string path_prefix = 2;
     int64 since_ns = 3;
     int32 signature = 4;
+    repeated string path_prefixes = 6;
 }
 message SubscribeMetadataResponse {
     string directory = 1;
@@ -336,6 +338,7 @@ message KeepConnectedResponse {
 message LocateBrokerRequest {
     string resource = 1;
 }
+
 message LocateBrokerResponse {
     bool found = 1;
     // if found, send the exact address
@@ -386,23 +389,6 @@ message FilerConf {
 /////////////////////////
 // Remote Storage related
 /////////////////////////
-message RemoteConf {
-    string type = 1;
-    string name = 2;
-    string s3_access_key = 4;
-    string s3_secret_key = 5;
-    string s3_region = 6;
-    string s3_endpoint = 7;
-}
-
-message RemoteStorageMapping {
-    map<string,RemoteStorageLocation> mappings = 1;
-}
-message RemoteStorageLocation {
-    string name = 1;
-    string bucket = 2;
-    string path = 3;
-}
 message DownloadToLocalRequest {
     string directory = 1;
     string name = 2;

weed/pb/filer_pb/filer_client.go

@@ -38,9 +38,6 @@ func GetEntry(filerClient FilerClient, fullFilePath util.FullPath) (entry *Entry
 		// glog.V(3).Infof("read %s request: %v", fullFilePath, request)
 		resp, err := LookupEntry(client, request)
 		if err != nil {
-			if err == ErrNotFound {
-				return nil
-			}
 			glog.V(3).Infof("read %s %v: %v", fullFilePath, resp, err)
 			return err
 		}

weed/pb/filer_pb/filer_pb_helper.go

@@ -151,7 +151,3 @@ func (fp *FilerConf_PathConf) Key() interface{} {
 	key, _ := proto.Marshal(fp)
 	return string(key)
 }
-func (fp *RemoteStorageLocation) Key() interface{} {
-	key, _ := proto.Marshal(fp)
-	return string(key)
-}

weed/pb/filer_pb_tail.go

@@ -12,12 +12,12 @@ import (
 
 type ProcessMetadataFunc func(resp *filer_pb.SubscribeMetadataResponse) error
 
-func FollowMetadata(filerAddress string, grpcDialOption grpc.DialOption,
-	clientName string, pathPrefix string, lastTsNs int64, selfSignature int32,
+func FollowMetadata(filerAddress ServerAddress, grpcDialOption grpc.DialOption, clientName string,
+	pathPrefix string, additionalPathPrefixes []string, lastTsNs int64, selfSignature int32,
 	processEventFn ProcessMetadataFunc, fatalOnError bool) error {
 
-	err := WithFilerClient(filerAddress, grpcDialOption, makeFunc(
-		clientName, pathPrefix, lastTsNs, selfSignature, processEventFn, fatalOnError))
+	err := WithFilerClient(filerAddress, grpcDialOption, makeFunc(clientName,
+		pathPrefix, additionalPathPrefixes, lastTsNs, selfSignature, processEventFn, fatalOnError))
 	if err != nil {
 		return fmt.Errorf("subscribing filer meta change: %v", err)
 	}
@@ -28,8 +28,8 @@ func WithFilerClientFollowMetadata(filerClient filer_pb.FilerClient,
 	clientName string, pathPrefix string, lastTsNs int64, selfSignature int32,
 	processEventFn ProcessMetadataFunc, fatalOnError bool) error {
 
-	err := filerClient.WithFilerClient(makeFunc(
-		clientName, pathPrefix, lastTsNs, selfSignature, processEventFn, fatalOnError))
+	err := filerClient.WithFilerClient(makeFunc(clientName,
+		pathPrefix, nil, lastTsNs, selfSignature, processEventFn, fatalOnError))
 	if err != nil {
 		return fmt.Errorf("subscribing filer meta change: %v", err)
 	}
@@ -37,16 +37,17 @@ func WithFilerClientFollowMetadata(filerClient filer_pb.FilerClient,
 	return nil
 }
 
-func makeFunc(clientName string, pathPrefix string, lastTsNs int64, selfSignature int32,
+func makeFunc(clientName string, pathPrefix string, additionalPathPrefixes []string, lastTsNs int64, selfSignature int32,
 	processEventFn ProcessMetadataFunc, fatalOnError bool) func(client filer_pb.SeaweedFilerClient) error {
 	return func(client filer_pb.SeaweedFilerClient) error {
 		ctx, cancel := context.WithCancel(context.Background())
 		defer cancel()
 		stream, err := client.SubscribeMetadata(ctx, &filer_pb.SubscribeMetadataRequest{
-			ClientName: clientName,
-			PathPrefix: pathPrefix,
-			SinceNs:    lastTsNs,
-			Signature:  selfSignature,
+			ClientName:   clientName,
+			PathPrefix:   pathPrefix,
+			PathPrefixes: additionalPathPrefixes,
+			SinceNs:      lastTsNs,
+			Signature:    selfSignature,
 		})
 		if err != nil {
 			return fmt.Errorf("subscribe: %v", err)

weed/pb/grpc_client_server.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"fmt"
 	"github.com/chrislusf/seaweedfs/weed/glog"
+	"github.com/chrislusf/seaweedfs/weed/util"
 	"math/rand"
 	"net/http"
 	"strconv"
@@ -135,20 +136,6 @@ func WithCachedGrpcClient(fn func(*grpc.ClientConn) error, address string, opts
 	return executionErr
 }
 
-func ParseServerToGrpcAddress(server string) (serverGrpcAddress string, err error) {
-	return ParseServerAddress(server, 10000)
-}
-func ParseServersToGrpcAddresses(servers []string) (serverGrpcAddresses []string, err error) {
-	for _, server := range servers {
-		if serverGrpcAddress, parseErr := ParseServerToGrpcAddress(server); parseErr == nil {
-			serverGrpcAddresses = append(serverGrpcAddresses, serverGrpcAddress)
-		} else {
-			return nil, parseErr
-		}
-	}
-	return
-}
-
 func ParseServerAddress(server string, deltaPort int) (newServerAddress string, err error) {
 
 	host, port, parseErr := hostAndPort(server)
@@ -158,7 +145,7 @@ func ParseServerAddress(server string, deltaPort int) (newServerAddress string,
 
 	newPort := int(port) + deltaPort
 
-	return fmt.Sprintf("%s:%d", host, newPort), nil
+	return util.JoinHostPort(host, newPort), nil
 }
 
 func hostAndPort(address string) (host string, port uint64, err error) {
@@ -183,7 +170,7 @@ func ServerToGrpcAddress(server string) (serverGrpcAddress string) {
 
 	grpcPort := int(port) + 10000
 
-	return fmt.Sprintf("%s:%d", host, grpcPort)
+	return util.JoinHostPort(host, grpcPort)
 }
 
 func GrpcAddressToServerAddress(grpcAddress string) (serverAddress string) {
@@ -194,30 +181,24 @@ func GrpcAddressToServerAddress(grpcAddress string) (serverAddress string) {
 
 	port := int(grpcPort) - 10000
 
-	return fmt.Sprintf("%s:%d", host, port)
+	return util.JoinHostPort(host, port)
 }
 
-func WithMasterClient(master string, grpcDialOption grpc.DialOption, fn func(client master_pb.SeaweedClient) error) error {
-
-	masterGrpcAddress, parseErr := ParseServerToGrpcAddress(master)
-	if parseErr != nil {
-		return fmt.Errorf("failed to parse master grpc %v: %v", master, parseErr)
-	}
-
+func WithMasterClient(master ServerAddress, grpcDialOption grpc.DialOption, fn func(client master_pb.SeaweedClient) error) error {
 	return WithCachedGrpcClient(func(grpcConnection *grpc.ClientConn) error {
 		client := master_pb.NewSeaweedClient(grpcConnection)
 		return fn(client)
-	}, masterGrpcAddress, grpcDialOption)
+	}, master.ToGrpcAddress(), grpcDialOption)
 
 }
 
-func WithOneOfGrpcMasterClients(masterGrpcAddresses []string, grpcDialOption grpc.DialOption, fn func(client master_pb.SeaweedClient) error) (err error) {
+func WithOneOfGrpcMasterClients(masterGrpcAddresses []ServerAddress, grpcDialOption grpc.DialOption, fn func(client master_pb.SeaweedClient) error) (err error) {
 
 	for _, masterGrpcAddress := range masterGrpcAddresses {
 		err = WithCachedGrpcClient(func(grpcConnection *grpc.ClientConn) error {
 			client := master_pb.NewSeaweedClient(grpcConnection)
 			return fn(client)
-		}, masterGrpcAddress, grpcDialOption)
+		}, masterGrpcAddress.ToGrpcAddress(), grpcDialOption)
 		if err == nil {
 			return nil
 		}
@@ -235,33 +216,28 @@ func WithBrokerGrpcClient(brokerGrpcAddress string, grpcDialOption grpc.DialOpti
 
 }
 
-func WithFilerClient(filer string, grpcDialOption grpc.DialOption, fn func(client filer_pb.SeaweedFilerClient) error) error {
+func WithFilerClient(filer ServerAddress, grpcDialOption grpc.DialOption, fn func(client filer_pb.SeaweedFilerClient) error) error {
 
-	filerGrpcAddress, parseErr := ParseServerToGrpcAddress(filer)
-	if parseErr != nil {
-		return fmt.Errorf("failed to parse filer grpc %v: %v", filer, parseErr)
-	}
-
-	return WithGrpcFilerClient(filerGrpcAddress, grpcDialOption, fn)
+	return WithGrpcFilerClient(filer, grpcDialOption, fn)
 
 }
 
-func WithGrpcFilerClient(filerGrpcAddress string, grpcDialOption grpc.DialOption, fn func(client filer_pb.SeaweedFilerClient) error) error {
+func WithGrpcFilerClient(filerGrpcAddress ServerAddress, grpcDialOption grpc.DialOption, fn func(client filer_pb.SeaweedFilerClient) error) error {
 
 	return WithCachedGrpcClient(func(grpcConnection *grpc.ClientConn) error {
 		client := filer_pb.NewSeaweedFilerClient(grpcConnection)
 		return fn(client)
-	}, filerGrpcAddress, grpcDialOption)
+	}, filerGrpcAddress.ToGrpcAddress(), grpcDialOption)
 
 }
 
-func WithOneOfGrpcFilerClients(filerGrpcAddresses []string, grpcDialOption grpc.DialOption, fn func(client filer_pb.SeaweedFilerClient) error) (err error) {
+func WithOneOfGrpcFilerClients(filerAddresses []ServerAddress, grpcDialOption grpc.DialOption, fn func(client filer_pb.SeaweedFilerClient) error) (err error) {
 
-	for _, filerGrpcAddress := range filerGrpcAddresses {
+	for _, filerAddress := range filerAddresses {
 		err = WithCachedGrpcClient(func(grpcConnection *grpc.ClientConn) error {
 			client := filer_pb.NewSeaweedFilerClient(grpcConnection)
 			return fn(client)
-		}, filerGrpcAddress, grpcDialOption)
+		}, filerAddress.ToGrpcAddress(), grpcDialOption)
 		if err == nil {
 			return nil
 		}

weed/pb/master.proto

@@ -62,6 +62,7 @@ message Heartbeat {
     bool has_no_ec_shards = 19;
 
     map<string, uint32> max_volume_counts = 4;
+    uint32 grpc_port = 20;
 
 }
 
@@ -127,7 +128,7 @@ message SuperBlockExtra {
 
 message KeepConnectedRequest {
     string name = 1;
-    uint32 grpc_port = 2;
+    string client_address = 3;
 }
 
 message VolumeLocation {
@@ -137,6 +138,7 @@ message VolumeLocation {
     repeated uint32 deleted_vids = 4;
     string leader = 5; // optional when leader is not itself
     string data_center = 6; // optional when DataCenter is in use
+    uint32 grpc_port = 7;
 }
 
 message LookupVolumeRequest {
@@ -156,6 +158,7 @@ message LookupVolumeResponse {
 message Location {
     string url = 1;
     string public_url = 2;
+    uint32 grpc_port = 3;
 }
 
 message AssignRequest {
@@ -172,11 +175,11 @@ message AssignRequest {
 }
 message AssignResponse {
     string fid = 1;
-    string url = 2;
-    string public_url = 3;
     uint64 count = 4;
     string error = 5;
     string auth = 6;
+    repeated Location replicas = 7;
+    Location location = 8;
 }
 
 message StatisticsRequest {
@@ -227,6 +230,7 @@ message DiskInfo {
 message DataNodeInfo {
     string id = 1;
     map<string, DiskInfo> diskInfos = 2;
+    uint32 grpc_port = 3;
 }
 message RackInfo {
     string id = 1;

weed/pb/remote.proto

@@ -0,0 +1,75 @@
+syntax = "proto3";
+
+package remote_pb;
+
+option go_package = "github.com/chrislusf/seaweedfs/weed/pb/remote_pb";
+option java_package = "seaweedfs.client";
+option java_outer_classname = "FilerProto";
+
+/////////////////////////
+// Remote Storage related
+/////////////////////////
+message RemoteConf {
+  string type = 1;
+  string name = 2;
+  string s3_access_key = 4;
+  string s3_secret_key = 5;
+  string s3_region = 6;
+  string s3_endpoint = 7;
+  string s3_storage_class = 8;
+  bool s3_force_path_style = 9;
+  bool s3_v4_signature = 11;
+
+  string gcs_google_application_credentials = 10;
+  string gcs_project_id = 12;
+
+  string azure_account_name = 15;
+  string azure_account_key = 16;
+
+  string backblaze_key_id = 20;
+  string backblaze_application_key = 21;
+  string backblaze_endpoint = 22;
+
+  string aliyun_access_key = 25;
+  string aliyun_secret_key = 26;
+  string aliyun_endpoint = 27;
+  string aliyun_region = 28;
+
+  string tencent_secret_id = 30;
+  string tencent_secret_key = 31;
+  string tencent_endpoint = 32;
+
+  string baidu_access_key = 35;
+  string baidu_secret_key = 36;
+  string baidu_endpoint = 37;
+  string baidu_region = 38;
+
+  string wasabi_access_key = 40;
+  string wasabi_secret_key = 41;
+  string wasabi_endpoint = 42;
+  string wasabi_region = 43;
+
+  repeated string hdfs_namenodes = 50;
+  string hdfs_username = 51;
+  string hdfs_service_principal_name = 52;
+  string hdfs_data_transfer_protection = 53;
+
+  string filebase_access_key = 60;
+  string filebase_secret_key = 61;
+  string filebase_endpoint = 62;
+
+  string storj_access_key = 65;
+  string storj_secret_key = 66;
+  string storj_endpoint = 67;
+
+}
+
+message RemoteStorageMapping {
+  map<string,RemoteStorageLocation> mappings = 1;
+  string primary_bucket_storage_name = 2;
+}
+message RemoteStorageLocation {
+  string name = 1;
+  string bucket = 2;
+  string path = 3;
+}

weed/pb/remote_pb/remote.pb.go

@@ -0,0 +1,751 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.25.0
+// 	protoc        v3.12.3
+// source: remote.proto
+
+package remote_pb
+
+import (
+	proto "github.com/golang/protobuf/proto"
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+// This is a compile-time assertion that a sufficiently up-to-date version
+// of the legacy proto package is being used.
+const _ = proto.ProtoPackageIsVersion4
+
+/////////////////////////
+// Remote Storage related
+/////////////////////////
+type RemoteConf struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Type                            string   `protobuf:"bytes,1,opt,name=type,proto3" json:"type,omitempty"`
+	Name                            string   `protobuf:"bytes,2,opt,name=name,proto3" json:"name,omitempty"`
+	S3AccessKey                     string   `protobuf:"bytes,4,opt,name=s3_access_key,json=s3AccessKey,proto3" json:"s3_access_key,omitempty"`
+	S3SecretKey                     string   `protobuf:"bytes,5,opt,name=s3_secret_key,json=s3SecretKey,proto3" json:"s3_secret_key,omitempty"`
+	S3Region                        string   `protobuf:"bytes,6,opt,name=s3_region,json=s3Region,proto3" json:"s3_region,omitempty"`
+	S3Endpoint                      string   `protobuf:"bytes,7,opt,name=s3_endpoint,json=s3Endpoint,proto3" json:"s3_endpoint,omitempty"`
+	S3StorageClass                  string   `protobuf:"bytes,8,opt,name=s3_storage_class,json=s3StorageClass,proto3" json:"s3_storage_class,omitempty"`
+	S3ForcePathStyle                bool     `protobuf:"varint,9,opt,name=s3_force_path_style,json=s3ForcePathStyle,proto3" json:"s3_force_path_style,omitempty"`
+	S3V4Signature                   bool     `protobuf:"varint,11,opt,name=s3_v4_signature,json=s3V4Signature,proto3" json:"s3_v4_signature,omitempty"`
+	GcsGoogleApplicationCredentials string   `protobuf:"bytes,10,opt,name=gcs_google_application_credentials,json=gcsGoogleApplicationCredentials,proto3" json:"gcs_google_application_credentials,omitempty"`
+	GcsProjectId                    string   `protobuf:"bytes,12,opt,name=gcs_project_id,json=gcsProjectId,proto3" json:"gcs_project_id,omitempty"`
+	AzureAccountName                string   `protobuf:"bytes,15,opt,name=azure_account_name,json=azureAccountName,proto3" json:"azure_account_name,omitempty"`
+	AzureAccountKey                 string   `protobuf:"bytes,16,opt,name=azure_account_key,json=azureAccountKey,proto3" json:"azure_account_key,omitempty"`
+	BackblazeKeyId                  string   `protobuf:"bytes,20,opt,name=backblaze_key_id,json=backblazeKeyId,proto3" json:"backblaze_key_id,omitempty"`
+	BackblazeApplicationKey         string   `protobuf:"bytes,21,opt,name=backblaze_application_key,json=backblazeApplicationKey,proto3" json:"backblaze_application_key,omitempty"`
+	BackblazeEndpoint               string   `protobuf:"bytes,22,opt,name=backblaze_endpoint,json=backblazeEndpoint,proto3" json:"backblaze_endpoint,omitempty"`
+	AliyunAccessKey                 string   `protobuf:"bytes,25,opt,name=aliyun_access_key,json=aliyunAccessKey,proto3" json:"aliyun_access_key,omitempty"`
+	AliyunSecretKey                 string   `protobuf:"bytes,26,opt,name=aliyun_secret_key,json=aliyunSecretKey,proto3" json:"aliyun_secret_key,omitempty"`
+	AliyunEndpoint                  string   `protobuf:"bytes,27,opt,name=aliyun_endpoint,json=aliyunEndpoint,proto3" json:"aliyun_endpoint,omitempty"`
+	AliyunRegion                    string   `protobuf:"bytes,28,opt,name=aliyun_region,json=aliyunRegion,proto3" json:"aliyun_region,omitempty"`
+	TencentSecretId                 string   `protobuf:"bytes,30,opt,name=tencent_secret_id,json=tencentSecretId,proto3" json:"tencent_secret_id,omitempty"`
+	TencentSecretKey                string   `protobuf:"bytes,31,opt,name=tencent_secret_key,json=tencentSecretKey,proto3" json:"tencent_secret_key,omitempty"`
+	TencentEndpoint                 string   `protobuf:"bytes,32,opt,name=tencent_endpoint,json=tencentEndpoint,proto3" json:"tencent_endpoint,omitempty"`
+	BaiduAccessKey                  string   `protobuf:"bytes,35,opt,name=baidu_access_key,json=baiduAccessKey,proto3" json:"baidu_access_key,omitempty"`
+	BaiduSecretKey                  string   `protobuf:"bytes,36,opt,name=baidu_secret_key,json=baiduSecretKey,proto3" json:"baidu_secret_key,omitempty"`
+	BaiduEndpoint                   string   `protobuf:"bytes,37,opt,name=baidu_endpoint,json=baiduEndpoint,proto3" json:"baidu_endpoint,omitempty"`
+	BaiduRegion                     string   `protobuf:"bytes,38,opt,name=baidu_region,json=baiduRegion,proto3" json:"baidu_region,omitempty"`
+	WasabiAccessKey                 string   `protobuf:"bytes,40,opt,name=wasabi_access_key,json=wasabiAccessKey,proto3" json:"wasabi_access_key,omitempty"`
+	WasabiSecretKey                 string   `protobuf:"bytes,41,opt,name=wasabi_secret_key,json=wasabiSecretKey,proto3" json:"wasabi_secret_key,omitempty"`
+	WasabiEndpoint                  string   `protobuf:"bytes,42,opt,name=wasabi_endpoint,json=wasabiEndpoint,proto3" json:"wasabi_endpoint,omitempty"`
+	WasabiRegion                    string   `protobuf:"bytes,43,opt,name=wasabi_region,json=wasabiRegion,proto3" json:"wasabi_region,omitempty"`
+	HdfsNamenodes                   []string `protobuf:"bytes,50,rep,name=hdfs_namenodes,json=hdfsNamenodes,proto3" json:"hdfs_namenodes,omitempty"`
+	HdfsUsername                    string   `protobuf:"bytes,51,opt,name=hdfs_username,json=hdfsUsername,proto3" json:"hdfs_username,omitempty"`
+	HdfsServicePrincipalName        string   `protobuf:"bytes,52,opt,name=hdfs_service_principal_name,json=hdfsServicePrincipalName,proto3" json:"hdfs_service_principal_name,omitempty"`
+	HdfsDataTransferProtection      string   `protobuf:"bytes,53,opt,name=hdfs_data_transfer_protection,json=hdfsDataTransferProtection,proto3" json:"hdfs_data_transfer_protection,omitempty"`
+	FilebaseAccessKey               string   `protobuf:"bytes,60,opt,name=filebase_access_key,json=filebaseAccessKey,proto3" json:"filebase_access_key,omitempty"`
+	FilebaseSecretKey               string   `protobuf:"bytes,61,opt,name=filebase_secret_key,json=filebaseSecretKey,proto3" json:"filebase_secret_key,omitempty"`
+	FilebaseEndpoint                string   `protobuf:"bytes,62,opt,name=filebase_endpoint,json=filebaseEndpoint,proto3" json:"filebase_endpoint,omitempty"`
+	StorjAccessKey                  string   `protobuf:"bytes,65,opt,name=storj_access_key,json=storjAccessKey,proto3" json:"storj_access_key,omitempty"`
+	StorjSecretKey                  string   `protobuf:"bytes,66,opt,name=storj_secret_key,json=storjSecretKey,proto3" json:"storj_secret_key,omitempty"`
+	StorjEndpoint                   string   `protobuf:"bytes,67,opt,name=storj_endpoint,json=storjEndpoint,proto3" json:"storj_endpoint,omitempty"`
+}
+
+func (x *RemoteConf) Reset() {
+	*x = RemoteConf{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_remote_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *RemoteConf) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*RemoteConf) ProtoMessage() {}
+
+func (x *RemoteConf) ProtoReflect() protoreflect.Message {
+	mi := &file_remote_proto_msgTypes[0]
+	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 RemoteConf.ProtoReflect.Descriptor instead.
+func (*RemoteConf) Descriptor() ([]byte, []int) {
+	return file_remote_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *RemoteConf) GetType() string {
+	if x != nil {
+		return x.Type
+	}
+	return ""
+}
+
+func (x *RemoteConf) GetName() string {
+	if x != nil {
+		return x.Name
+	}
+	return ""
+}
+
+func (x *RemoteConf) GetS3AccessKey() string {
+	if x != nil {
+		return x.S3AccessKey
+	}
+	return ""
+}
+
+func (x *RemoteConf) GetS3SecretKey() string {
+	if x != nil {
+		return x.S3SecretKey
+	}
+	return ""
+}
+
+func (x *RemoteConf) GetS3Region() string {
+	if x != nil {
+		return x.S3Region
+	}
+	return ""
+}
+
+func (x *RemoteConf) GetS3Endpoint() string {
+	if x != nil {
+		return x.S3Endpoint
+	}
+	return ""
+}
+
+func (x *RemoteConf) GetS3StorageClass() string {
+	if x != nil {
+		return x.S3StorageClass
+	}
+	return ""
+}
+
+func (x *RemoteConf) GetS3ForcePathStyle() bool {
+	if x != nil {
+		return x.S3ForcePathStyle
+	}
+	return false
+}
+
+func (x *RemoteConf) GetS3V4Signature() bool {
+	if x != nil {
+		return x.S3V4Signature
+	}
+	return false
+}
+
+func (x *RemoteConf) GetGcsGoogleApplicationCredentials() string {
+	if x != nil {
+		return x.GcsGoogleApplicationCredentials
+	}
+	return ""
+}
+
+func (x *RemoteConf) GetGcsProjectId() string {
+	if x != nil {
+		return x.GcsProjectId
+	}
+	return ""
+}
+
+func (x *RemoteConf) GetAzureAccountName() string {
+	if x != nil {
+		return x.AzureAccountName
+	}
+	return ""
+}
+
+func (x *RemoteConf) GetAzureAccountKey() string {
+	if x != nil {
+		return x.AzureAccountKey
+	}
+	return ""
+}
+
+func (x *RemoteConf) GetBackblazeKeyId() string {
+	if x != nil {
+		return x.BackblazeKeyId
+	}
+	return ""
+}
+
+func (x *RemoteConf) GetBackblazeApplicationKey() string {
+	if x != nil {
+		return x.BackblazeApplicationKey
+	}
+	return ""
+}
+
+func (x *RemoteConf) GetBackblazeEndpoint() string {
+	if x != nil {
+		return x.BackblazeEndpoint
+	}
+	return ""
+}
+
+func (x *RemoteConf) GetAliyunAccessKey() string {
+	if x != nil {
+		return x.AliyunAccessKey
+	}
+	return ""
+}
+
+func (x *RemoteConf) GetAliyunSecretKey() string {
+	if x != nil {
+		return x.AliyunSecretKey
+	}
+	return ""
+}
+
+func (x *RemoteConf) GetAliyunEndpoint() string {
+	if x != nil {
+		return x.AliyunEndpoint
+	}
+	return ""
+}
+
+func (x *RemoteConf) GetAliyunRegion() string {
+	if x != nil {
+		return x.AliyunRegion
+	}
+	return ""
+}
+
+func (x *RemoteConf) GetTencentSecretId() string {
+	if x != nil {
+		return x.TencentSecretId
+	}
+	return ""
+}
+
+func (x *RemoteConf) GetTencentSecretKey() string {
+	if x != nil {
+		return x.TencentSecretKey
+	}
+	return ""
+}
+
+func (x *RemoteConf) GetTencentEndpoint() string {
+	if x != nil {
+		return x.TencentEndpoint
+	}
+	return ""
+}
+
+func (x *RemoteConf) GetBaiduAccessKey() string {
+	if x != nil {
+		return x.BaiduAccessKey
+	}
+	return ""
+}
+
+func (x *RemoteConf) GetBaiduSecretKey() string {
+	if x != nil {
+		return x.BaiduSecretKey
+	}
+	return ""
+}
+
+func (x *RemoteConf) GetBaiduEndpoint() string {
+	if x != nil {
+		return x.BaiduEndpoint
+	}
+	return ""
+}
+
+func (x *RemoteConf) GetBaiduRegion() string {
+	if x != nil {
+		return x.BaiduRegion
+	}
+	return ""
+}
+
+func (x *RemoteConf) GetWasabiAccessKey() string {
+	if x != nil {
+		return x.WasabiAccessKey
+	}
+	return ""
+}
+
+func (x *RemoteConf) GetWasabiSecretKey() string {
+	if x != nil {
+		return x.WasabiSecretKey
+	}
+	return ""
+}
+
+func (x *RemoteConf) GetWasabiEndpoint() string {
+	if x != nil {
+		return x.WasabiEndpoint
+	}
+	return ""
+}
+
+func (x *RemoteConf) GetWasabiRegion() string {
+	if x != nil {
+		return x.WasabiRegion
+	}
+	return ""
+}
+
+func (x *RemoteConf) GetHdfsNamenodes() []string {
+	if x != nil {
+		return x.HdfsNamenodes
+	}
+	return nil
+}
+
+func (x *RemoteConf) GetHdfsUsername() string {
+	if x != nil {
+		return x.HdfsUsername
+	}
+	return ""
+}
+
+func (x *RemoteConf) GetHdfsServicePrincipalName() string {
+	if x != nil {
+		return x.HdfsServicePrincipalName
+	}
+	return ""
+}
+
+func (x *RemoteConf) GetHdfsDataTransferProtection() string {
+	if x != nil {
+		return x.HdfsDataTransferProtection
+	}
+	return ""
+}
+
+func (x *RemoteConf) GetFilebaseAccessKey() string {
+	if x != nil {
+		return x.FilebaseAccessKey
+	}
+	return ""
+}
+
+func (x *RemoteConf) GetFilebaseSecretKey() string {
+	if x != nil {
+		return x.FilebaseSecretKey
+	}
+	return ""
+}
+
+func (x *RemoteConf) GetFilebaseEndpoint() string {
+	if x != nil {
+		return x.FilebaseEndpoint
+	}
+	return ""
+}
+
+func (x *RemoteConf) GetStorjAccessKey() string {
+	if x != nil {
+		return x.StorjAccessKey
+	}
+	return ""
+}
+
+func (x *RemoteConf) GetStorjSecretKey() string {
+	if x != nil {
+		return x.StorjSecretKey
+	}
+	return ""
+}
+
+func (x *RemoteConf) GetStorjEndpoint() string {
+	if x != nil {
+		return x.StorjEndpoint
+	}
+	return ""
+}
+
+type RemoteStorageMapping struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Mappings                 map[string]*RemoteStorageLocation `protobuf:"bytes,1,rep,name=mappings,proto3" json:"mappings,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
+	PrimaryBucketStorageName string                            `protobuf:"bytes,2,opt,name=primary_bucket_storage_name,json=primaryBucketStorageName,proto3" json:"primary_bucket_storage_name,omitempty"`
+}
+
+func (x *RemoteStorageMapping) Reset() {
+	*x = RemoteStorageMapping{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_remote_proto_msgTypes[1]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *RemoteStorageMapping) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*RemoteStorageMapping) ProtoMessage() {}
+
+func (x *RemoteStorageMapping) ProtoReflect() protoreflect.Message {
+	mi := &file_remote_proto_msgTypes[1]
+	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 RemoteStorageMapping.ProtoReflect.Descriptor instead.
+func (*RemoteStorageMapping) Descriptor() ([]byte, []int) {
+	return file_remote_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *RemoteStorageMapping) GetMappings() map[string]*RemoteStorageLocation {
+	if x != nil {
+		return x.Mappings
+	}
+	return nil
+}
+
+func (x *RemoteStorageMapping) GetPrimaryBucketStorageName() string {
+	if x != nil {
+		return x.PrimaryBucketStorageName
+	}
+	return ""
+}
+
+type RemoteStorageLocation struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Name   string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
+	Bucket string `protobuf:"bytes,2,opt,name=bucket,proto3" json:"bucket,omitempty"`
+	Path   string `protobuf:"bytes,3,opt,name=path,proto3" json:"path,omitempty"`
+}
+
+func (x *RemoteStorageLocation) Reset() {
+	*x = RemoteStorageLocation{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_remote_proto_msgTypes[2]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *RemoteStorageLocation) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*RemoteStorageLocation) ProtoMessage() {}
+
+func (x *RemoteStorageLocation) ProtoReflect() protoreflect.Message {
+	mi := &file_remote_proto_msgTypes[2]
+	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 RemoteStorageLocation.ProtoReflect.Descriptor instead.
+func (*RemoteStorageLocation) Descriptor() ([]byte, []int) {
+	return file_remote_proto_rawDescGZIP(), []int{2}
+}
+
+func (x *RemoteStorageLocation) GetName() string {
+	if x != nil {
+		return x.Name
+	}
+	return ""
+}
+
+func (x *RemoteStorageLocation) GetBucket() string {
+	if x != nil {
+		return x.Bucket
+	}
+	return ""
+}
+
+func (x *RemoteStorageLocation) GetPath() string {
+	if x != nil {
+		return x.Path
+	}
+	return ""
+}
+
+var File_remote_proto protoreflect.FileDescriptor
+
+var file_remote_proto_rawDesc = []byte{
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+	0x69, 0x6c, 0x65, 0x72, 0x50, 0x72, 0x6f, 0x74, 0x6f, 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, 0x72, 0x65, 0x6d, 0x6f, 0x74, 0x65, 0x5f, 0x70, 0x62, 0x62, 0x06, 0x70, 0x72, 0x6f,
+	0x74, 0x6f, 0x33,
+}
+
+var (
+	file_remote_proto_rawDescOnce sync.Once
+	file_remote_proto_rawDescData = file_remote_proto_rawDesc
+)
+
+func file_remote_proto_rawDescGZIP() []byte {
+	file_remote_proto_rawDescOnce.Do(func() {
+		file_remote_proto_rawDescData = protoimpl.X.CompressGZIP(file_remote_proto_rawDescData)
+	})
+	return file_remote_proto_rawDescData
+}
+
+var file_remote_proto_msgTypes = make([]protoimpl.MessageInfo, 4)
+var file_remote_proto_goTypes = []interface{}{
+	(*RemoteConf)(nil),            // 0: remote_pb.RemoteConf
+	(*RemoteStorageMapping)(nil),  // 1: remote_pb.RemoteStorageMapping
+	(*RemoteStorageLocation)(nil), // 2: remote_pb.RemoteStorageLocation
+	nil,                           // 3: remote_pb.RemoteStorageMapping.MappingsEntry
+}
+var file_remote_proto_depIdxs = []int32{
+	3, // 0: remote_pb.RemoteStorageMapping.mappings:type_name -> remote_pb.RemoteStorageMapping.MappingsEntry
+	2, // 1: remote_pb.RemoteStorageMapping.MappingsEntry.value:type_name -> remote_pb.RemoteStorageLocation
+	2, // [2:2] is the sub-list for method output_type
+	2, // [2:2] is the sub-list for method input_type
+	2, // [2:2] is the sub-list for extension type_name
+	2, // [2:2] is the sub-list for extension extendee
+	0, // [0:2] is the sub-list for field type_name
+}
+
+func init() { file_remote_proto_init() }
+func file_remote_proto_init() {
+	if File_remote_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_remote_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*RemoteConf); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_remote_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*RemoteStorageMapping); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_remote_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*RemoteStorageLocation); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_remote_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   4,
+			NumExtensions: 0,
+			NumServices:   0,
+		},
+		GoTypes:           file_remote_proto_goTypes,
+		DependencyIndexes: file_remote_proto_depIdxs,
+		MessageInfos:      file_remote_proto_msgTypes,
+	}.Build()
+	File_remote_proto = out.File
+	file_remote_proto_rawDesc = nil
+	file_remote_proto_goTypes = nil
+	file_remote_proto_depIdxs = nil
+}

weed/pb/remote_pb/remote_pb_helper.go

@@ -0,0 +1,8 @@
+package remote_pb
+
+import "github.com/golang/protobuf/proto"
+
+func (fp *RemoteStorageLocation) Key() interface{} {
+	key, _ := proto.Marshal(fp)
+	return string(key)
+}

weed/pb/server_address.go

@@ -0,0 +1,130 @@
+package pb
+
+import (
+	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
+	"github.com/chrislusf/seaweedfs/weed/util"
+	"net"
+	"strconv"
+	"strings"
+)
+
+type ServerAddress string
+type ServerAddresses string
+
+func NewServerAddress(host string, port int, grpcPort int) ServerAddress {
+	if grpcPort == port+10000 {
+		return ServerAddress(util.JoinHostPort(host, port))
+	}
+	return ServerAddress(util.JoinHostPort(host, port) + "." + strconv.Itoa(grpcPort))
+}
+
+func NewServerAddressWithGrpcPort(address string, grpcPort int) ServerAddress {
+	if grpcPort == 0 {
+		return ServerAddress(address)
+	}
+	_, port, _ := hostAndPort(address)
+	if uint64(grpcPort) == port+10000 {
+		return ServerAddress(address)
+	}
+	return ServerAddress(address + "." + strconv.Itoa(grpcPort))
+}
+
+func NewServerAddressFromDataNode(dn *master_pb.DataNodeInfo) ServerAddress {
+	return NewServerAddressWithGrpcPort(dn.Id, int(dn.GrpcPort))
+}
+
+func NewServerAddressFromLocation(dn *master_pb.Location) ServerAddress {
+	return NewServerAddressWithGrpcPort(dn.Url, int(dn.GrpcPort))
+}
+
+func (sa ServerAddress) String() string {
+	return sa.ToHttpAddress()
+}
+
+func (sa ServerAddress) ToHttpAddress() string {
+	portsSepIndex := strings.LastIndex(string(sa), ":")
+	if portsSepIndex < 0 {
+		return string(sa)
+	}
+	if portsSepIndex+1 >= len(sa) {
+		return string(sa)
+	}
+	ports := string(sa[portsSepIndex+1:])
+	sepIndex := strings.LastIndex(string(ports), ".")
+	if sepIndex >= 0 {
+		host := string(sa[0:portsSepIndex])
+		return net.JoinHostPort(host, ports[0:sepIndex])
+	}
+	return string(sa)
+}
+
+func (sa ServerAddress) ToGrpcAddress() string {
+	portsSepIndex := strings.LastIndex(string(sa), ":")
+	if portsSepIndex < 0 {
+		return string(sa)
+	}
+	if portsSepIndex+1 >= len(sa) {
+		return string(sa)
+	}
+	ports := string(sa[portsSepIndex+1:])
+	sepIndex := strings.LastIndex(ports, ".")
+	if sepIndex >= 0 {
+		host := string(sa[0:portsSepIndex])
+		return net.JoinHostPort(host, ports[sepIndex+1:])
+	}
+	return ServerToGrpcAddress(string(sa))
+}
+
+func (sa ServerAddresses) ToAddresses() (addresses []ServerAddress) {
+	parts := strings.Split(string(sa), ",")
+	for _, address := range parts {
+		if address != "" {
+			addresses = append(addresses, ServerAddress(address))
+		}
+	}
+	return
+}
+
+func (sa ServerAddresses) ToAddressStrings() (addresses []string) {
+	parts := strings.Split(string(sa), ",")
+	for _, address := range parts {
+		addresses = append(addresses, address)
+	}
+	return
+}
+
+func ToAddressStrings(addresses []ServerAddress) []string {
+	var strings []string
+	for _, addr := range addresses {
+		strings = append(strings, string(addr))
+	}
+	return strings
+}
+func FromAddressStrings(strings []string) []ServerAddress {
+	var addresses []ServerAddress
+	for _, addr := range strings {
+		addresses = append(addresses, ServerAddress(addr))
+	}
+	return addresses
+}
+
+func ParseUrl(input string) (address ServerAddress, path string, err error) {
+	if !strings.HasPrefix(input, "http://") {
+		return "", "", fmt.Errorf("url %s needs prefix 'http://'", input)
+	}
+	input = input[7:]
+	pathSeparatorIndex := strings.Index(input, "/")
+	hostAndPorts := input
+	if pathSeparatorIndex > 0 {
+		path = input[pathSeparatorIndex:]
+		hostAndPorts = input[0:pathSeparatorIndex]
+	}
+	commaSeparatorIndex := strings.Index(input, ":")
+	if commaSeparatorIndex < 0 {
+		err = fmt.Errorf("port should be specified in %s", input)
+		return
+	}
+	address = ServerAddress(hostAndPorts)
+	return
+}

weed/pb/volume_server.proto

@@ -3,6 +3,8 @@ syntax = "proto3";
 package volume_server_pb;
 option go_package = "github.com/chrislusf/seaweedfs/weed/pb/volume_server_pb";
 
+import "remote.proto";
+
 //////////////////////////////////////////////////
 
 service VolumeServer {
@@ -260,6 +262,7 @@ message CopyFileRequest {
 }
 message CopyFileResponse {
     bytes file_content = 1;
+    int64 modified_ts_ns = 2;
 }
 
 message ReadNeedleBlobRequest {
@@ -472,15 +475,16 @@ message FetchAndWriteNeedleRequest {
     uint32 cookie = 3;
     int64 offset = 4;
     int64 size = 5;
+    message Replica {
+        string url = 1;
+        string public_url = 2;
+        int32 grpc_port = 3;
+    }
+    repeated Replica replicas = 6;
+    string auth = 7;
     // remote conf
-    string remote_type = 6;
-    string remote_name = 7;
-    string s3_access_key = 8;
-    string s3_secret_key = 9;
-    string s3_region = 10;
-    string s3_endpoint = 11;
-    string remote_bucket = 12;
-    string remote_path = 13;
+    remote_pb.RemoteConf remote_conf = 15;
+    remote_pb.RemoteStorageLocation remote_location = 16;
 }
 message FetchAndWriteNeedleResponse {
 }

weed/remote_storage/azure/azure_highlevel.go

@@ -0,0 +1,120 @@
+package azure
+
+import (
+	"context"
+	"crypto/rand"
+	"encoding/base64"
+	"errors"
+	"fmt"
+	"github.com/Azure/azure-pipeline-go/pipeline"
+	. "github.com/Azure/azure-storage-blob-go/azblob"
+	"io"
+	"sync"
+)
+
+// copied from https://github.com/Azure/azure-storage-blob-go/blob/master/azblob/highlevel.go#L73:6
+// uploadReaderAtToBlockBlob was not public
+
+// uploadReaderAtToBlockBlob uploads a buffer in blocks to a block blob.
+func uploadReaderAtToBlockBlob(ctx context.Context, reader io.ReaderAt, readerSize int64,
+	blockBlobURL BlockBlobURL, o UploadToBlockBlobOptions) (CommonResponse, error) {
+	if o.BlockSize == 0 {
+		// If bufferSize > (BlockBlobMaxStageBlockBytes * BlockBlobMaxBlocks), then error
+		if readerSize > BlockBlobMaxStageBlockBytes*BlockBlobMaxBlocks {
+			return nil, errors.New("buffer is too large to upload to a block blob")
+		}
+		// If bufferSize <= BlockBlobMaxUploadBlobBytes, then Upload should be used with just 1 I/O request
+		if readerSize <= BlockBlobMaxUploadBlobBytes {
+			o.BlockSize = BlockBlobMaxUploadBlobBytes // Default if unspecified
+		} else {
+			o.BlockSize = readerSize / BlockBlobMaxBlocks   // buffer / max blocks = block size to use all 50,000 blocks
+			if o.BlockSize < BlobDefaultDownloadBlockSize { // If the block size is smaller than 4MB, round up to 4MB
+				o.BlockSize = BlobDefaultDownloadBlockSize
+			}
+			// StageBlock will be called with blockSize blocks and a Parallelism of (BufferSize / BlockSize).
+		}
+	}
+
+	if readerSize <= BlockBlobMaxUploadBlobBytes {
+		// If the size can fit in 1 Upload call, do it this way
+		var body io.ReadSeeker = io.NewSectionReader(reader, 0, readerSize)
+		if o.Progress != nil {
+			body = pipeline.NewRequestBodyProgress(body, o.Progress)
+		}
+		return blockBlobURL.Upload(ctx, body, o.BlobHTTPHeaders, o.Metadata, o.AccessConditions, o.BlobAccessTier, o.BlobTagsMap, o.ClientProvidedKeyOptions)
+	}
+
+	var numBlocks = uint16(((readerSize - 1) / o.BlockSize) + 1)
+
+	blockIDList := make([]string, numBlocks) // Base-64 encoded block IDs
+	progress := int64(0)
+	progressLock := &sync.Mutex{}
+
+	err := DoBatchTransfer(ctx, BatchTransferOptions{
+		OperationName: "uploadReaderAtToBlockBlob",
+		TransferSize:  readerSize,
+		ChunkSize:     o.BlockSize,
+		Parallelism:   o.Parallelism,
+		Operation: func(offset int64, count int64, ctx context.Context) error {
+			// This function is called once per block.
+			// It is passed this block's offset within the buffer and its count of bytes
+			// Prepare to read the proper block/section of the buffer
+			var body io.ReadSeeker = io.NewSectionReader(reader, offset, count)
+			blockNum := offset / o.BlockSize
+			if o.Progress != nil {
+				blockProgress := int64(0)
+				body = pipeline.NewRequestBodyProgress(body,
+					func(bytesTransferred int64) {
+						diff := bytesTransferred - blockProgress
+						blockProgress = bytesTransferred
+						progressLock.Lock() // 1 goroutine at a time gets a progress report
+						progress += diff
+						o.Progress(progress)
+						progressLock.Unlock()
+					})
+			}
+
+			// Block IDs are unique values to avoid issue if 2+ clients are uploading blocks
+			// at the same time causing PutBlockList to get a mix of blocks from all the clients.
+			blockIDList[blockNum] = base64.StdEncoding.EncodeToString(newUUID().bytes())
+			_, err := blockBlobURL.StageBlock(ctx, blockIDList[blockNum], body, o.AccessConditions.LeaseAccessConditions, nil, o.ClientProvidedKeyOptions)
+			return err
+		},
+	})
+	if err != nil {
+		return nil, err
+	}
+	// All put blocks were successful, call Put Block List to finalize the blob
+	return blockBlobURL.CommitBlockList(ctx, blockIDList, o.BlobHTTPHeaders, o.Metadata, o.AccessConditions, o.BlobAccessTier, o.BlobTagsMap, o.ClientProvidedKeyOptions)
+}
+
+// The UUID reserved variants.
+const (
+	reservedNCS       byte = 0x80
+	reservedRFC4122   byte = 0x40
+	reservedMicrosoft byte = 0x20
+	reservedFuture    byte = 0x00
+)
+
+type uuid [16]byte
+
+// NewUUID returns a new uuid using RFC 4122 algorithm.
+func newUUID() (u uuid) {
+	u = uuid{}
+	// Set all bits to randomly (or pseudo-randomly) chosen values.
+	rand.Read(u[:])
+	u[8] = (u[8] | reservedRFC4122) & 0x7F // u.setVariant(ReservedRFC4122)
+
+	var version byte = 4
+	u[6] = (u[6] & 0xF) | (version << 4) // u.setVersion(4)
+	return
+}
+
+// String returns an unparsed version of the generated UUID sequence.
+func (u uuid) String() string {
+	return fmt.Sprintf("%x-%x-%x-%x-%x", u[0:4], u[4:6], u[6:8], u[8:10], u[10:])
+}
+
+func (u uuid) bytes() []byte {
+	return u[:]
+}

weed/remote_storage/azure/azure_storage_client.go

@@ -0,0 +1,252 @@
+package azure
+
+import (
+	"context"
+	"fmt"
+	"github.com/Azure/azure-storage-blob-go/azblob"
+	"github.com/chrislusf/seaweedfs/weed/filer"
+	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
+	"github.com/chrislusf/seaweedfs/weed/pb/remote_pb"
+	"github.com/chrislusf/seaweedfs/weed/remote_storage"
+	"github.com/chrislusf/seaweedfs/weed/util"
+	"io"
+	"io/ioutil"
+	"net/url"
+	"os"
+	"reflect"
+)
+
+func init() {
+	remote_storage.RemoteStorageClientMakers["azure"] = new(azureRemoteStorageMaker)
+}
+
+type azureRemoteStorageMaker struct{}
+
+func (s azureRemoteStorageMaker) HasBucket() bool {
+	return true
+}
+
+func (s azureRemoteStorageMaker) Make(conf *remote_pb.RemoteConf) (remote_storage.RemoteStorageClient, error) {
+
+	client := &azureRemoteStorageClient{
+		conf: conf,
+	}
+
+	accountName, accountKey := conf.AzureAccountName, conf.AzureAccountKey
+	if len(accountName) == 0 || len(accountKey) == 0 {
+		accountName, accountKey = os.Getenv("AZURE_STORAGE_ACCOUNT"), os.Getenv("AZURE_STORAGE_ACCESS_KEY")
+		if len(accountName) == 0 || len(accountKey) == 0 {
+			return nil, fmt.Errorf("either AZURE_STORAGE_ACCOUNT or AZURE_STORAGE_ACCESS_KEY environment variable is not set")
+		}
+	}
+
+	// Use your Storage account's name and key to create a credential object.
+	credential, err := azblob.NewSharedKeyCredential(accountName, accountKey)
+	if err != nil {
+		return nil, fmt.Errorf("invalid Azure credential with account name:%s: %v", accountName, err)
+	}
+
+	// Create a request pipeline that is used to process HTTP(S) requests and responses.
+	p := azblob.NewPipeline(credential, azblob.PipelineOptions{})
+
+	// Create an ServiceURL object that wraps the service URL and a request pipeline.
+	u, _ := url.Parse(fmt.Sprintf("https://%s.blob.core.windows.net", accountName))
+	client.serviceURL = azblob.NewServiceURL(*u, p)
+
+	return client, nil
+}
+
+type azureRemoteStorageClient struct {
+	conf       *remote_pb.RemoteConf
+	serviceURL azblob.ServiceURL
+}
+
+var _ = remote_storage.RemoteStorageClient(&azureRemoteStorageClient{})
+
+func (az *azureRemoteStorageClient) Traverse(loc *remote_pb.RemoteStorageLocation, visitFn remote_storage.VisitFunc) (err error) {
+
+	pathKey := loc.Path[1:]
+	containerURL := az.serviceURL.NewContainerURL(loc.Bucket)
+
+	// List the container that we have created above
+	for marker := (azblob.Marker{}); marker.NotDone(); {
+		// Get a result segment starting with the blob indicated by the current Marker.
+		listBlob, err := containerURL.ListBlobsFlatSegment(context.Background(), marker, azblob.ListBlobsSegmentOptions{
+			Prefix: pathKey,
+		})
+		if err != nil {
+			return fmt.Errorf("azure traverse %s%s: %v", loc.Bucket, loc.Path, err)
+		}
+
+		// ListBlobs returns the start of the next segment; you MUST use this to get
+		// the next segment (after processing the current result segment).
+		marker = listBlob.NextMarker
+
+		// Process the blobs returned in this result segment (if the segment is empty, the loop body won't execute)
+		for _, blobInfo := range listBlob.Segment.BlobItems {
+			key := blobInfo.Name
+			key = "/" + key
+			dir, name := util.FullPath(key).DirAndName()
+			err = visitFn(dir, name, false, &filer_pb.RemoteEntry{
+				RemoteMtime: blobInfo.Properties.LastModified.Unix(),
+				RemoteSize:  *blobInfo.Properties.ContentLength,
+				RemoteETag:  string(blobInfo.Properties.Etag),
+				StorageName: az.conf.Name,
+			})
+			if err != nil {
+				return fmt.Errorf("azure processing %s%s: %v", loc.Bucket, loc.Path, err)
+			}
+		}
+	}
+
+	return
+}
+func (az *azureRemoteStorageClient) ReadFile(loc *remote_pb.RemoteStorageLocation, offset int64, size int64) (data []byte, err error) {
+
+	key := loc.Path[1:]
+	containerURL := az.serviceURL.NewContainerURL(loc.Bucket)
+	blobURL := containerURL.NewBlockBlobURL(key)
+
+	downloadResponse, readErr := blobURL.Download(context.Background(), offset, size, azblob.BlobAccessConditions{}, false, azblob.ClientProvidedKeyOptions{})
+	if readErr != nil {
+		return nil, readErr
+	}
+	// NOTE: automatically retries are performed if the connection fails
+	bodyStream := downloadResponse.Body(azblob.RetryReaderOptions{MaxRetryRequests: 20})
+	defer bodyStream.Close()
+
+	data, err = ioutil.ReadAll(bodyStream)
+
+	if err != nil {
+		return nil, fmt.Errorf("failed to download file %s%s: %v", loc.Bucket, loc.Path, err)
+	}
+
+	return
+}
+
+func (az *azureRemoteStorageClient) WriteDirectory(loc *remote_pb.RemoteStorageLocation, entry *filer_pb.Entry) (err error) {
+	return nil
+}
+
+func (az *azureRemoteStorageClient) RemoveDirectory(loc *remote_pb.RemoteStorageLocation) (err error) {
+	return nil
+}
+
+func (az *azureRemoteStorageClient) WriteFile(loc *remote_pb.RemoteStorageLocation, entry *filer_pb.Entry, reader io.Reader) (remoteEntry *filer_pb.RemoteEntry, err error) {
+
+	key := loc.Path[1:]
+	containerURL := az.serviceURL.NewContainerURL(loc.Bucket)
+	blobURL := containerURL.NewBlockBlobURL(key)
+
+	readerAt, ok := reader.(io.ReaderAt)
+	if !ok {
+		return nil, fmt.Errorf("unexpected reader: readerAt expected")
+	}
+	fileSize := int64(filer.FileSize(entry))
+
+	_, err = uploadReaderAtToBlockBlob(context.Background(), readerAt, fileSize, blobURL, azblob.UploadToBlockBlobOptions{
+		BlockSize:   4 * 1024 * 1024,
+		Parallelism: 16})
+	if err != nil {
+		return nil, fmt.Errorf("azure upload to %s%s: %v", loc.Bucket, loc.Path, err)
+	}
+
+	metadata := toMetadata(entry.Extended)
+	if len(metadata) > 0 {
+		_, err = blobURL.SetMetadata(context.Background(), metadata, azblob.BlobAccessConditions{}, azblob.ClientProvidedKeyOptions{})
+		if err != nil {
+			return nil, fmt.Errorf("azure set metadata on %s%s: %v", loc.Bucket, loc.Path, err)
+		}
+	}
+
+	// read back the remote entry
+	return az.readFileRemoteEntry(loc)
+
+}
+
+func (az *azureRemoteStorageClient) readFileRemoteEntry(loc *remote_pb.RemoteStorageLocation) (*filer_pb.RemoteEntry, error) {
+	key := loc.Path[1:]
+	containerURL := az.serviceURL.NewContainerURL(loc.Bucket)
+	blobURL := containerURL.NewBlockBlobURL(key)
+
+	attr, err := blobURL.GetProperties(context.Background(), azblob.BlobAccessConditions{}, azblob.ClientProvidedKeyOptions{})
+
+	if err != nil {
+		return nil, err
+	}
+
+	return &filer_pb.RemoteEntry{
+		RemoteMtime: attr.LastModified().Unix(),
+		RemoteSize:  attr.ContentLength(),
+		RemoteETag:  string(attr.ETag()),
+		StorageName: az.conf.Name,
+	}, nil
+
+}
+
+func toMetadata(attributes map[string][]byte) map[string]string {
+	metadata := make(map[string]string)
+	for k, v := range attributes {
+		metadata[k] = string(v)
+	}
+	return metadata
+}
+
+func (az *azureRemoteStorageClient) UpdateFileMetadata(loc *remote_pb.RemoteStorageLocation, oldEntry *filer_pb.Entry, newEntry *filer_pb.Entry) (err error) {
+	if reflect.DeepEqual(oldEntry.Extended, newEntry.Extended) {
+		return nil
+	}
+	metadata := toMetadata(newEntry.Extended)
+
+	key := loc.Path[1:]
+	containerURL := az.serviceURL.NewContainerURL(loc.Bucket)
+
+	_, err = containerURL.NewBlobURL(key).SetMetadata(context.Background(), metadata, azblob.BlobAccessConditions{}, azblob.ClientProvidedKeyOptions{})
+
+	return
+}
+
+func (az *azureRemoteStorageClient) DeleteFile(loc *remote_pb.RemoteStorageLocation) (err error) {
+	key := loc.Path[1:]
+	containerURL := az.serviceURL.NewContainerURL(loc.Bucket)
+	if _, err = containerURL.NewBlobURL(key).Delete(context.Background(),
+		azblob.DeleteSnapshotsOptionInclude, azblob.BlobAccessConditions{}); err != nil {
+		return fmt.Errorf("azure delete %s%s: %v", loc.Bucket, loc.Path, err)
+	}
+	return
+}
+
+func (az *azureRemoteStorageClient) ListBuckets() (buckets []*remote_storage.Bucket, err error) {
+	ctx := context.Background()
+	for containerMarker := (azblob.Marker{}); containerMarker.NotDone(); {
+		listContainer, err := az.serviceURL.ListContainersSegment(ctx, containerMarker, azblob.ListContainersSegmentOptions{})
+		if err == nil {
+			for _, v := range listContainer.ContainerItems {
+				buckets = append(buckets, &remote_storage.Bucket{
+					Name:      v.Name,
+					CreatedAt: v.Properties.LastModified,
+				})
+			}
+		} else {
+			return buckets, err
+		}
+		containerMarker = listContainer.NextMarker
+	}
+	return
+}
+
+func (az *azureRemoteStorageClient) CreateBucket(name string) (err error) {
+	containerURL := az.serviceURL.NewContainerURL(name)
+	if _, err = containerURL.Create(context.Background(), azblob.Metadata{}, azblob.PublicAccessNone); err != nil {
+		return fmt.Errorf("create bucket %s: %v", name, err)
+	}
+	return
+}
+
+func (az *azureRemoteStorageClient) DeleteBucket(name string) (err error) {
+	containerURL := az.serviceURL.NewContainerURL(name)
+	if _, err = containerURL.Delete(context.Background(), azblob.ContainerAccessConditions{}); err != nil {
+		return fmt.Errorf("delete bucket %s: %v", name, err)
+	}
+	return
+}

weed/remote_storage/gcs/gcs_storage_client.go

@@ -0,0 +1,238 @@
+package gcs
+
+import (
+	"cloud.google.com/go/storage"
+	"context"
+	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/glog"
+	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
+	"github.com/chrislusf/seaweedfs/weed/pb/remote_pb"
+	"github.com/chrislusf/seaweedfs/weed/remote_storage"
+	"github.com/chrislusf/seaweedfs/weed/util"
+	"google.golang.org/api/iterator"
+	"google.golang.org/api/option"
+	"io"
+	"io/ioutil"
+	"os"
+	"reflect"
+)
+
+func init() {
+	remote_storage.RemoteStorageClientMakers["gcs"] = new(gcsRemoteStorageMaker)
+}
+
+type gcsRemoteStorageMaker struct{}
+
+func (s gcsRemoteStorageMaker) HasBucket() bool {
+	return true
+}
+
+func (s gcsRemoteStorageMaker) Make(conf *remote_pb.RemoteConf) (remote_storage.RemoteStorageClient, error) {
+	client := &gcsRemoteStorageClient{
+		conf: conf,
+	}
+
+	googleApplicationCredentials := conf.GcsGoogleApplicationCredentials
+
+	if googleApplicationCredentials == "" {
+		found := false
+		googleApplicationCredentials, found = os.LookupEnv("GOOGLE_APPLICATION_CREDENTIALS")
+		if !found {
+			return nil, fmt.Errorf("need to specific GOOGLE_APPLICATION_CREDENTIALS env variable")
+		}
+	}
+
+	projectID := conf.GcsProjectId
+	if projectID == "" {
+		found := false
+		projectID, found = os.LookupEnv("GOOGLE_CLOUD_PROJECT")
+		if !found {
+			glog.Warningf("need to specific GOOGLE_CLOUD_PROJECT env variable")
+		}
+	}
+
+	googleApplicationCredentials = util.ResolvePath(googleApplicationCredentials)
+
+	c, err := storage.NewClient(context.Background(), option.WithCredentialsFile(googleApplicationCredentials))
+	if err != nil {
+		return nil, fmt.Errorf("failed to create client: %v", err)
+	}
+
+	client.client = c
+	client.projectID = projectID
+	return client, nil
+}
+
+type gcsRemoteStorageClient struct {
+	conf      *remote_pb.RemoteConf
+	client    *storage.Client
+	projectID string
+}
+
+var _ = remote_storage.RemoteStorageClient(&gcsRemoteStorageClient{})
+
+func (gcs *gcsRemoteStorageClient) Traverse(loc *remote_pb.RemoteStorageLocation, visitFn remote_storage.VisitFunc) (err error) {
+
+	pathKey := loc.Path[1:]
+
+	objectIterator := gcs.client.Bucket(loc.Bucket).Objects(context.Background(), &storage.Query{
+		Delimiter: "",
+		Prefix:    pathKey,
+		Versions:  false,
+	})
+
+	var objectAttr *storage.ObjectAttrs
+	for err == nil {
+		objectAttr, err = objectIterator.Next()
+		if err != nil {
+			if err == iterator.Done {
+				return nil
+			}
+			return err
+		}
+
+		key := objectAttr.Name
+		key = "/" + key
+		dir, name := util.FullPath(key).DirAndName()
+		err = visitFn(dir, name, false, &filer_pb.RemoteEntry{
+			RemoteMtime: objectAttr.Updated.Unix(),
+			RemoteSize:  objectAttr.Size,
+			RemoteETag:  objectAttr.Etag,
+			StorageName: gcs.conf.Name,
+		})
+	}
+	return
+}
+func (gcs *gcsRemoteStorageClient) ReadFile(loc *remote_pb.RemoteStorageLocation, offset int64, size int64) (data []byte, err error) {
+
+	key := loc.Path[1:]
+	rangeReader, readErr := gcs.client.Bucket(loc.Bucket).Object(key).NewRangeReader(context.Background(), offset, size)
+	if readErr != nil {
+		return nil, readErr
+	}
+	data, err = ioutil.ReadAll(rangeReader)
+
+	if err != nil {
+		return nil, fmt.Errorf("failed to download file %s%s: %v", loc.Bucket, loc.Path, err)
+	}
+
+	return
+}
+
+func (gcs *gcsRemoteStorageClient) WriteDirectory(loc *remote_pb.RemoteStorageLocation, entry *filer_pb.Entry) (err error) {
+	return nil
+}
+
+func (gcs *gcsRemoteStorageClient) RemoveDirectory(loc *remote_pb.RemoteStorageLocation) (err error) {
+	return nil
+}
+
+func (gcs *gcsRemoteStorageClient) WriteFile(loc *remote_pb.RemoteStorageLocation, entry *filer_pb.Entry, reader io.Reader) (remoteEntry *filer_pb.RemoteEntry, err error) {
+
+	key := loc.Path[1:]
+
+	metadata := toMetadata(entry.Extended)
+	wc := gcs.client.Bucket(loc.Bucket).Object(key).NewWriter(context.Background())
+	wc.Metadata = metadata
+	if _, err = io.Copy(wc, reader); err != nil {
+		return nil, fmt.Errorf("upload to gcs %s/%s%s: %v", loc.Name, loc.Bucket, loc.Path, err)
+	}
+	if err = wc.Close(); err != nil {
+		return nil, fmt.Errorf("close gcs %s/%s%s: %v", loc.Name, loc.Bucket, loc.Path, err)
+	}
+
+	// read back the remote entry
+	return gcs.readFileRemoteEntry(loc)
+
+}
+
+func (gcs *gcsRemoteStorageClient) readFileRemoteEntry(loc *remote_pb.RemoteStorageLocation) (*filer_pb.RemoteEntry, error) {
+	key := loc.Path[1:]
+	attr, err := gcs.client.Bucket(loc.Bucket).Object(key).Attrs(context.Background())
+
+	if err != nil {
+		return nil, err
+	}
+
+	return &filer_pb.RemoteEntry{
+		RemoteMtime: attr.Updated.Unix(),
+		RemoteSize:  attr.Size,
+		RemoteETag:  attr.Etag,
+		StorageName: gcs.conf.Name,
+	}, nil
+
+}
+
+func toMetadata(attributes map[string][]byte) map[string]string {
+	metadata := make(map[string]string)
+	for k, v := range attributes {
+		metadata[k] = string(v)
+	}
+	return metadata
+}
+
+func (gcs *gcsRemoteStorageClient) UpdateFileMetadata(loc *remote_pb.RemoteStorageLocation, oldEntry *filer_pb.Entry, newEntry *filer_pb.Entry) (err error) {
+	if reflect.DeepEqual(oldEntry.Extended, newEntry.Extended) {
+		return nil
+	}
+	metadata := toMetadata(newEntry.Extended)
+
+	key := loc.Path[1:]
+
+	if len(metadata) > 0 {
+		_, err = gcs.client.Bucket(loc.Bucket).Object(key).Update(context.Background(), storage.ObjectAttrsToUpdate{
+			Metadata: metadata,
+		})
+	} else {
+		// no way to delete the metadata yet
+	}
+
+	return
+}
+func (gcs *gcsRemoteStorageClient) DeleteFile(loc *remote_pb.RemoteStorageLocation) (err error) {
+	key := loc.Path[1:]
+	if err = gcs.client.Bucket(loc.Bucket).Object(key).Delete(context.Background()); err != nil {
+		return fmt.Errorf("gcs delete %s%s: %v", loc.Bucket, key, err)
+	}
+	return
+}
+
+func (gcs *gcsRemoteStorageClient) ListBuckets() (buckets []*remote_storage.Bucket, err error) {
+	if gcs.projectID == "" {
+		return nil, fmt.Errorf("gcs project id or GOOGLE_CLOUD_PROJECT env variable not set")
+	}
+	iter := gcs.client.Buckets(context.Background(), gcs.projectID)
+	for {
+		b, err := iter.Next()
+		if err == iterator.Done {
+			break
+		}
+		if err != nil {
+			return buckets, err
+		}
+		buckets = append(buckets, &remote_storage.Bucket{
+			Name:      b.Name,
+			CreatedAt: b.Created,
+		})
+	}
+	return
+}
+
+func (gcs *gcsRemoteStorageClient) CreateBucket(name string) (err error) {
+	if gcs.projectID == "" {
+		return fmt.Errorf("gcs project id or GOOGLE_CLOUD_PROJECT env variable not set")
+	}
+	err = gcs.client.Bucket(name).Create(context.Background(), gcs.projectID, &storage.BucketAttrs{})
+	if err != nil {
+		return fmt.Errorf("create bucket %s: %v", name, err)
+	}
+	return
+}
+
+func (gcs *gcsRemoteStorageClient) DeleteBucket(name string) (err error) {
+	err = gcs.client.Bucket(name).Delete(context.Background())
+	if err != nil {
+		return fmt.Errorf("delete bucket %s: %v", name, err)
+	}
+	return
+}

weed/remote_storage/hdfs/hdfs_kerberos.go

@@ -0,0 +1,55 @@
+package hdfs
+
+import (
+	"fmt"
+	"os"
+	"os/user"
+	"strings"
+
+	krb "github.com/jcmturner/gokrb5/v8/client"
+	"github.com/jcmturner/gokrb5/v8/config"
+	"github.com/jcmturner/gokrb5/v8/credentials"
+)
+
+// copy-paste from https://github.com/colinmarc/hdfs/blob/master/cmd/hdfs/kerberos.go
+func getKerberosClient() (*krb.Client, error) {
+	configPath := os.Getenv("KRB5_CONFIG")
+	if configPath == "" {
+		configPath = "/etc/krb5.conf"
+	}
+
+	cfg, err := config.Load(configPath)
+	if err != nil {
+		return nil, err
+	}
+
+	// Determine the ccache location from the environment, falling back to the
+	// default location.
+	ccachePath := os.Getenv("KRB5CCNAME")
+	if strings.Contains(ccachePath, ":") {
+		if strings.HasPrefix(ccachePath, "FILE:") {
+			ccachePath = strings.SplitN(ccachePath, ":", 2)[1]
+		} else {
+			return nil, fmt.Errorf("unusable ccache: %s", ccachePath)
+		}
+	} else if ccachePath == "" {
+		u, err := user.Current()
+		if err != nil {
+			return nil, err
+		}
+
+		ccachePath = fmt.Sprintf("/tmp/krb5cc_%s", u.Uid)
+	}
+
+	ccache, err := credentials.LoadCCache(ccachePath)
+	if err != nil {
+		return nil, err
+	}
+
+	client, err := krb.NewFromCCache(ccache, cfg)
+	if err != nil {
+		return nil, err
+	}
+
+	return client, nil
+}

weed/remote_storage/hdfs/hdfs_storage_client.go

@@ -0,0 +1,191 @@
+package hdfs
+
+import (
+	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/glog"
+	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
+	"github.com/chrislusf/seaweedfs/weed/pb/remote_pb"
+	"github.com/chrislusf/seaweedfs/weed/remote_storage"
+	"github.com/chrislusf/seaweedfs/weed/util"
+	"github.com/colinmarc/hdfs/v2"
+	"io"
+	"os"
+	"path"
+)
+
+func init() {
+	remote_storage.RemoteStorageClientMakers["hdfs"] = new(hdfsRemoteStorageMaker)
+}
+
+type hdfsRemoteStorageMaker struct{}
+
+func (s hdfsRemoteStorageMaker) HasBucket() bool {
+	return false
+}
+
+func (s hdfsRemoteStorageMaker) Make(conf *remote_pb.RemoteConf) (remote_storage.RemoteStorageClient, error) {
+	client := &hdfsRemoteStorageClient{
+		conf: conf,
+	}
+
+	options := hdfs.ClientOptions{
+		Addresses:           conf.HdfsNamenodes,
+		UseDatanodeHostname: false,
+	}
+
+	if conf.HdfsServicePrincipalName != "" {
+		var err error
+		options.KerberosClient, err = getKerberosClient()
+		if err != nil {
+			return nil, fmt.Errorf("get kerberos authentication: %s", err)
+		}
+		options.KerberosServicePrincipleName = conf.HdfsServicePrincipalName
+
+		if conf.HdfsDataTransferProtection != "" {
+			options.DataTransferProtection = conf.HdfsDataTransferProtection
+		}
+	} else {
+		options.User = conf.HdfsUsername
+	}
+
+	c, err := hdfs.NewClient(options)
+	if err != nil {
+		return nil, err
+	}
+
+	client.client = c
+	return client, nil
+}
+
+type hdfsRemoteStorageClient struct {
+	conf   *remote_pb.RemoteConf
+	client *hdfs.Client
+}
+
+var _ = remote_storage.RemoteStorageClient(&hdfsRemoteStorageClient{})
+
+func (c *hdfsRemoteStorageClient) Traverse(loc *remote_pb.RemoteStorageLocation, visitFn remote_storage.VisitFunc) (err error) {
+
+	return remote_storage.TraverseBfs(func(parentDir util.FullPath, visitFn remote_storage.VisitFunc) error {
+		children, err := c.client.ReadDir(string(parentDir))
+		if err != nil {
+			return err
+		}
+		for _, child := range children {
+			if err := visitFn(string(parentDir), child.Name(), child.IsDir(), &filer_pb.RemoteEntry{
+				StorageName:       c.conf.Name,
+				LastLocalSyncTsNs: 0,
+				RemoteETag:        "",
+				RemoteMtime:       child.ModTime().Unix(),
+				RemoteSize:        child.Size(),
+			}); err != nil {
+				return nil
+			}
+		}
+		return nil
+	}, util.FullPath(loc.Path), visitFn)
+
+}
+func (c *hdfsRemoteStorageClient) ReadFile(loc *remote_pb.RemoteStorageLocation, offset int64, size int64) (data []byte, err error) {
+
+	f, err := c.client.Open(loc.Path)
+	if err != nil {
+		return
+	}
+	defer f.Close()
+	data = make([]byte, size)
+	_, err = f.ReadAt(data, offset)
+
+	return
+
+}
+
+func (c *hdfsRemoteStorageClient) WriteDirectory(loc *remote_pb.RemoteStorageLocation, entry *filer_pb.Entry) (err error) {
+	return c.client.MkdirAll(loc.Path, os.FileMode(entry.Attributes.FileMode))
+}
+
+func (c *hdfsRemoteStorageClient) RemoveDirectory(loc *remote_pb.RemoteStorageLocation) (err error) {
+	return c.client.RemoveAll(loc.Path)
+}
+
+func (c *hdfsRemoteStorageClient) WriteFile(loc *remote_pb.RemoteStorageLocation, entry *filer_pb.Entry, reader io.Reader) (remoteEntry *filer_pb.RemoteEntry, err error) {
+
+	dirname := path.Dir(loc.Path)
+
+	// ensure parent directory
+	if err = c.client.MkdirAll(dirname, 0755); err != nil {
+		return
+	}
+
+	// remove existing file
+	info, err := c.client.Stat(loc.Path)
+	if err == nil {
+		err = c.client.Remove(loc.Path)
+		if err != nil {
+			return
+		}
+	}
+
+	// create new file
+	out, err := c.client.Create(loc.Path)
+	if err != nil {
+		return
+	}
+
+	cleanup := func() {
+		if removeErr := c.client.Remove(loc.Path); removeErr != nil {
+			glog.Errorf("clean up %s%s: %v", loc.Name, loc.Path, removeErr)
+		}
+	}
+
+	if _, err = io.Copy(out, reader); err != nil {
+		cleanup()
+		return
+	}
+
+	if err = out.Close(); err != nil {
+		cleanup()
+		return
+	}
+
+	info, err = c.client.Stat(loc.Path)
+	if err != nil {
+		return
+	}
+
+	return &filer_pb.RemoteEntry{
+		RemoteMtime: info.ModTime().Unix(),
+		RemoteSize:  info.Size(),
+		RemoteETag:  "",
+		StorageName: c.conf.Name,
+	}, nil
+
+}
+
+func (c *hdfsRemoteStorageClient) UpdateFileMetadata(loc *remote_pb.RemoteStorageLocation, oldEntry *filer_pb.Entry, newEntry *filer_pb.Entry) error {
+	if oldEntry.Attributes.FileMode != newEntry.Attributes.FileMode {
+		if err := c.client.Chmod(loc.Path, os.FileMode(newEntry.Attributes.FileMode)); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (c *hdfsRemoteStorageClient) DeleteFile(loc *remote_pb.RemoteStorageLocation) (err error) {
+	if err = c.client.Remove(loc.Path); err != nil {
+		return fmt.Errorf("hdfs delete %s: %v", loc.Path, err)
+	}
+	return
+}
+
+func (c *hdfsRemoteStorageClient) ListBuckets() (buckets []*remote_storage.Bucket, err error) {
+	return
+}
+
+func (c *hdfsRemoteStorageClient) CreateBucket(name string) (err error) {
+	return
+}
+
+func (c *hdfsRemoteStorageClient) DeleteBucket(name string) (err error) {
+	return
+}

weed/remote_storage/remote_storage.go

@@ -3,13 +3,28 @@ package remote_storage
 import (
 	"fmt"
 	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
+	"github.com/chrislusf/seaweedfs/weed/pb/remote_pb"
+	"github.com/golang/protobuf/proto"
 	"io"
+	"sort"
 	"strings"
 	"sync"
+	"time"
 )
 
-func ParseLocation(remote string) (loc *filer_pb.RemoteStorageLocation) {
-	loc = &filer_pb.RemoteStorageLocation{}
+func ParseLocationName(remote string) (locationName string) {
+	if strings.HasSuffix(string(remote), "/") {
+		remote = remote[:len(remote)-1]
+	}
+	parts := strings.SplitN(string(remote), "/", 2)
+	if len(parts) >= 1 {
+		return parts[0]
+	}
+	return
+}
+
+func parseBucketLocation(remote string) (loc *remote_pb.RemoteStorageLocation) {
+	loc = &remote_pb.RemoteStorageLocation{}
 	if strings.HasSuffix(string(remote), "/") {
 		remote = remote[:len(remote)-1]
 	}
@@ -27,32 +42,98 @@ func ParseLocation(remote string) (loc *filer_pb.RemoteStorageLocation) {
 	return
 }
 
-func FormatLocation(loc *filer_pb.RemoteStorageLocation) string {
+func parseNoBucketLocation(remote string) (loc *remote_pb.RemoteStorageLocation) {
+	loc = &remote_pb.RemoteStorageLocation{}
+	if strings.HasSuffix(string(remote), "/") {
+		remote = remote[:len(remote)-1]
+	}
+	parts := strings.SplitN(string(remote), "/", 2)
+	if len(parts) >= 1 {
+		loc.Name = parts[0]
+	}
+	loc.Path = string(remote[len(loc.Name):])
+	if loc.Path == "" {
+		loc.Path = "/"
+	}
+	return
+}
+
+func FormatLocation(loc *remote_pb.RemoteStorageLocation) string {
+	if loc.Bucket == "" {
+		return fmt.Sprintf("%s%s", loc.Name, loc.Path)
+	}
 	return fmt.Sprintf("%s/%s%s", loc.Name, loc.Bucket, loc.Path)
 }
 
 type VisitFunc func(dir string, name string, isDirectory bool, remoteEntry *filer_pb.RemoteEntry) error
 
+type Bucket struct {
+	Name      string
+	CreatedAt time.Time
+}
+
 type RemoteStorageClient interface {
-	Traverse(loc *filer_pb.RemoteStorageLocation, visitFn VisitFunc) error
-	ReadFile(loc *filer_pb.RemoteStorageLocation, offset int64, size int64) (data []byte, err error)
-	WriteDirectory(loc *filer_pb.RemoteStorageLocation, entry *filer_pb.Entry) (err error)
-	WriteFile(loc *filer_pb.RemoteStorageLocation, entry *filer_pb.Entry, reader io.Reader) (remoteEntry *filer_pb.RemoteEntry, err error)
-	UpdateFileMetadata(loc *filer_pb.RemoteStorageLocation, oldEntry *filer_pb.Entry, newEntry *filer_pb.Entry) (err error)
-	DeleteFile(loc *filer_pb.RemoteStorageLocation) (err error)
+	Traverse(loc *remote_pb.RemoteStorageLocation, visitFn VisitFunc) error
+	ReadFile(loc *remote_pb.RemoteStorageLocation, offset int64, size int64) (data []byte, err error)
+	WriteDirectory(loc *remote_pb.RemoteStorageLocation, entry *filer_pb.Entry) (err error)
+	RemoveDirectory(loc *remote_pb.RemoteStorageLocation) (err error)
+	WriteFile(loc *remote_pb.RemoteStorageLocation, entry *filer_pb.Entry, reader io.Reader) (remoteEntry *filer_pb.RemoteEntry, err error)
+	UpdateFileMetadata(loc *remote_pb.RemoteStorageLocation, oldEntry *filer_pb.Entry, newEntry *filer_pb.Entry) (err error)
+	DeleteFile(loc *remote_pb.RemoteStorageLocation) (err error)
+	ListBuckets() ([]*Bucket, error)
+	CreateBucket(name string) (err error)
+	DeleteBucket(name string) (err error)
 }
 
 type RemoteStorageClientMaker interface {
-	Make(remoteConf *filer_pb.RemoteConf) (RemoteStorageClient, error)
+	Make(remoteConf *remote_pb.RemoteConf) (RemoteStorageClient, error)
+	HasBucket() bool
+}
+
+type CachedRemoteStorageClient struct {
+	*remote_pb.RemoteConf
+	RemoteStorageClient
 }
 
 var (
 	RemoteStorageClientMakers = make(map[string]RemoteStorageClientMaker)
-	remoteStorageClients      = make(map[string]RemoteStorageClient)
+	remoteStorageClients      = make(map[string]CachedRemoteStorageClient)
 	remoteStorageClientsLock  sync.Mutex
 )
 
-func makeRemoteStorageClient(remoteConf *filer_pb.RemoteConf) (RemoteStorageClient, error) {
+func GetAllRemoteStorageNames() string {
+	var storageNames []string
+	for k := range RemoteStorageClientMakers {
+		storageNames = append(storageNames, k)
+	}
+	sort.Strings(storageNames)
+	return strings.Join(storageNames, "|")
+}
+
+func GetRemoteStorageNamesHasBucket() string {
+	var storageNames []string
+	for k, m := range RemoteStorageClientMakers {
+		if m.HasBucket() {
+			storageNames = append(storageNames, k)
+		}
+	}
+	sort.Strings(storageNames)
+	return strings.Join(storageNames, "|")
+}
+
+func ParseRemoteLocation(remoteConfType string, remote string) (remoteStorageLocation *remote_pb.RemoteStorageLocation, err error) {
+	maker, found := RemoteStorageClientMakers[remoteConfType]
+	if !found {
+		return nil, fmt.Errorf("remote storage type %s not found", remoteConfType)
+	}
+
+	if !maker.HasBucket() {
+		return parseNoBucketLocation(remote), nil
+	}
+	return parseBucketLocation(remote), nil
+}
+
+func makeRemoteStorageClient(remoteConf *remote_pb.RemoteConf) (RemoteStorageClient, error) {
 	maker, found := RemoteStorageClientMakers[remoteConf.Type]
 	if !found {
 		return nil, fmt.Errorf("remote storage type %s not found", remoteConf.Type)
@@ -60,13 +141,13 @@ func makeRemoteStorageClient(remoteConf *filer_pb.RemoteConf) (RemoteStorageClie
 	return maker.Make(remoteConf)
 }
 
-func GetRemoteStorage(remoteConf *filer_pb.RemoteConf) (RemoteStorageClient, error) {
+func GetRemoteStorage(remoteConf *remote_pb.RemoteConf) (RemoteStorageClient, error) {
 	remoteStorageClientsLock.Lock()
 	defer remoteStorageClientsLock.Unlock()
 
 	existingRemoteStorageClient, found := remoteStorageClients[remoteConf.Name]
-	if found {
-		return existingRemoteStorageClient, nil
+	if found && proto.Equal(existingRemoteStorageClient.RemoteConf, remoteConf) {
+		return existingRemoteStorageClient.RemoteStorageClient, nil
 	}
 
 	newRemoteStorageClient, err := makeRemoteStorageClient(remoteConf)
@@ -74,7 +155,10 @@ func GetRemoteStorage(remoteConf *filer_pb.RemoteConf) (RemoteStorageClient, err
 		return nil, fmt.Errorf("make remote storage client %s: %v", remoteConf.Name, err)
 	}
 
-	remoteStorageClients[remoteConf.Name] = newRemoteStorageClient
+	remoteStorageClients[remoteConf.Name] = CachedRemoteStorageClient{
+		RemoteConf:          remoteConf,
+		RemoteStorageClient: newRemoteStorageClient,
+	}
 
 	return newRemoteStorageClient, nil
 }

weed/remote_storage/s3/aliyun.go

@@ -0,0 +1,49 @@
+package s3
+
+import (
+	"fmt"
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/aws/credentials"
+	"github.com/aws/aws-sdk-go/aws/session"
+	"github.com/aws/aws-sdk-go/service/s3"
+	"github.com/chrislusf/seaweedfs/weed/pb/remote_pb"
+	"github.com/chrislusf/seaweedfs/weed/remote_storage"
+	"github.com/chrislusf/seaweedfs/weed/util"
+	"os"
+)
+
+func init() {
+	remote_storage.RemoteStorageClientMakers["aliyun"] = new(AliyunRemoteStorageMaker)
+}
+
+type AliyunRemoteStorageMaker struct{}
+
+func (s AliyunRemoteStorageMaker) HasBucket() bool {
+	return true
+}
+
+func (s AliyunRemoteStorageMaker) Make(conf *remote_pb.RemoteConf) (remote_storage.RemoteStorageClient, error) {
+	client := &s3RemoteStorageClient{
+		conf: conf,
+	}
+	accessKey := util.Nvl(conf.AliyunAccessKey, os.Getenv("ALICLOUD_ACCESS_KEY_ID"))
+	secretKey := util.Nvl(conf.AliyunSecretKey, os.Getenv("ALICLOUD_ACCESS_KEY_SECRET"))
+
+	config := &aws.Config{
+		Endpoint:                      aws.String(conf.AliyunEndpoint),
+		Region:                        aws.String(conf.AliyunRegion),
+		S3ForcePathStyle:              aws.Bool(false),
+		S3DisableContentMD5Validation: aws.Bool(true),
+	}
+	if accessKey != "" && secretKey != "" {
+		config.Credentials = credentials.NewStaticCredentials(accessKey, secretKey, "")
+	}
+
+	sess, err := session.NewSession(config)
+	if err != nil {
+		return nil, fmt.Errorf("create aliyun session: %v", err)
+	}
+	sess.Handlers.Build.PushFront(skipSha256PayloadSigning)
+	client.conn = s3.New(sess)
+	return client, nil
+}

weed/remote_storage/s3/backblaze.go

@@ -0,0 +1,44 @@
+package s3
+
+import (
+	"fmt"
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/aws/credentials"
+	"github.com/aws/aws-sdk-go/aws/session"
+	"github.com/aws/aws-sdk-go/service/s3"
+	"github.com/chrislusf/seaweedfs/weed/pb/remote_pb"
+	"github.com/chrislusf/seaweedfs/weed/remote_storage"
+)
+
+func init() {
+	remote_storage.RemoteStorageClientMakers["b2"] = new(BackBlazeRemoteStorageMaker)
+}
+
+type BackBlazeRemoteStorageMaker struct{}
+
+func (s BackBlazeRemoteStorageMaker) HasBucket() bool {
+	return true
+}
+
+func (s BackBlazeRemoteStorageMaker) Make(conf *remote_pb.RemoteConf) (remote_storage.RemoteStorageClient, error) {
+	client := &s3RemoteStorageClient{
+		conf: conf,
+	}
+	config := &aws.Config{
+		Endpoint:                      aws.String(conf.BackblazeEndpoint),
+		Region:                        aws.String("us-west-002"),
+		S3ForcePathStyle:              aws.Bool(true),
+		S3DisableContentMD5Validation: aws.Bool(true),
+	}
+	if conf.BackblazeKeyId != "" && conf.BackblazeApplicationKey != "" {
+		config.Credentials = credentials.NewStaticCredentials(conf.BackblazeKeyId, conf.BackblazeApplicationKey, "")
+	}
+
+	sess, err := session.NewSession(config)
+	if err != nil {
+		return nil, fmt.Errorf("create backblaze session: %v", err)
+	}
+	sess.Handlers.Build.PushFront(skipSha256PayloadSigning)
+	client.conn = s3.New(sess)
+	return client, nil
+}

weed/remote_storage/s3/baidu.go

@@ -0,0 +1,49 @@
+package s3
+
+import (
+	"fmt"
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/aws/credentials"
+	"github.com/aws/aws-sdk-go/aws/session"
+	"github.com/aws/aws-sdk-go/service/s3"
+	"github.com/chrislusf/seaweedfs/weed/pb/remote_pb"
+	"github.com/chrislusf/seaweedfs/weed/remote_storage"
+	"github.com/chrislusf/seaweedfs/weed/util"
+	"os"
+)
+
+func init() {
+	remote_storage.RemoteStorageClientMakers["baidu"] = new(BaiduRemoteStorageMaker)
+}
+
+type BaiduRemoteStorageMaker struct{}
+
+func (s BaiduRemoteStorageMaker) HasBucket() bool {
+	return true
+}
+
+func (s BaiduRemoteStorageMaker) Make(conf *remote_pb.RemoteConf) (remote_storage.RemoteStorageClient, error) {
+	client := &s3RemoteStorageClient{
+		conf: conf,
+	}
+	accessKey := util.Nvl(conf.BaiduAccessKey, os.Getenv("BDCLOUD_ACCESS_KEY"))
+	secretKey := util.Nvl(conf.BaiduSecretKey, os.Getenv("BDCLOUD_SECRET_KEY"))
+
+	config := &aws.Config{
+		Endpoint:                      aws.String(conf.BaiduEndpoint),
+		Region:                        aws.String(conf.BaiduRegion),
+		S3ForcePathStyle:              aws.Bool(true),
+		S3DisableContentMD5Validation: aws.Bool(true),
+	}
+	if accessKey != "" && secretKey != "" {
+		config.Credentials = credentials.NewStaticCredentials(accessKey, secretKey, "")
+	}
+
+	sess, err := session.NewSession(config)
+	if err != nil {
+		return nil, fmt.Errorf("create baidu session: %v", err)
+	}
+	sess.Handlers.Build.PushFront(skipSha256PayloadSigning)
+	client.conn = s3.New(sess)
+	return client, nil
+}

weed/remote_storage/s3/filebase.go

@@ -0,0 +1,51 @@
+package s3
+
+import (
+	"fmt"
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/aws/credentials"
+	"github.com/aws/aws-sdk-go/aws/session"
+	v4 "github.com/aws/aws-sdk-go/aws/signer/v4"
+	"github.com/aws/aws-sdk-go/service/s3"
+	"github.com/chrislusf/seaweedfs/weed/pb/remote_pb"
+	"github.com/chrislusf/seaweedfs/weed/remote_storage"
+	"github.com/chrislusf/seaweedfs/weed/util"
+	"os"
+)
+
+func init() {
+	remote_storage.RemoteStorageClientMakers["filebase"] = new(FilebaseRemoteStorageMaker)
+}
+
+type FilebaseRemoteStorageMaker struct{}
+
+func (s FilebaseRemoteStorageMaker) HasBucket() bool {
+	return true
+}
+
+func (s FilebaseRemoteStorageMaker) Make(conf *remote_pb.RemoteConf) (remote_storage.RemoteStorageClient, error) {
+	client := &s3RemoteStorageClient{
+		conf: conf,
+	}
+	accessKey := util.Nvl(conf.FilebaseAccessKey, os.Getenv("AWS_ACCESS_KEY_ID"))
+	secretKey := util.Nvl(conf.FilebaseSecretKey, os.Getenv("AWS_SECRET_ACCESS_KEY"))
+
+	config := &aws.Config{
+		Endpoint:                      aws.String(conf.FilebaseEndpoint),
+		Region:                        aws.String("us-east-1"),
+		S3ForcePathStyle:              aws.Bool(true),
+		S3DisableContentMD5Validation: aws.Bool(true),
+	}
+	if accessKey != "" && secretKey != "" {
+		config.Credentials = credentials.NewStaticCredentials(accessKey, secretKey, "")
+	}
+
+	sess, err := session.NewSession(config)
+	if err != nil {
+		return nil, fmt.Errorf("create filebase session: %v", err)
+	}
+	sess.Handlers.Sign.PushBackNamed(v4.SignRequestHandler)
+	sess.Handlers.Build.PushFront(skipSha256PayloadSigning)
+	client.conn = s3.New(sess)
+	return client, nil
+}

weed/remote_storage/s3/s3_storage_client.go

@@ -4,12 +4,15 @@ import (
 	"fmt"
 	"github.com/aws/aws-sdk-go/aws"
 	"github.com/aws/aws-sdk-go/aws/credentials"
+	"github.com/aws/aws-sdk-go/aws/request"
 	"github.com/aws/aws-sdk-go/aws/session"
+	v4 "github.com/aws/aws-sdk-go/aws/signer/v4"
 	"github.com/aws/aws-sdk-go/service/s3"
 	"github.com/aws/aws-sdk-go/service/s3/s3iface"
 	"github.com/aws/aws-sdk-go/service/s3/s3manager"
 	"github.com/chrislusf/seaweedfs/weed/filer"
 	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
+	"github.com/chrislusf/seaweedfs/weed/pb/remote_pb"
 	"github.com/chrislusf/seaweedfs/weed/remote_storage"
 	"github.com/chrislusf/seaweedfs/weed/util"
 	"io"
@@ -22,14 +25,19 @@ func init() {
 
 type s3RemoteStorageMaker struct{}
 
-func (s s3RemoteStorageMaker) Make(conf *filer_pb.RemoteConf) (remote_storage.RemoteStorageClient, error) {
+func (s s3RemoteStorageMaker) HasBucket() bool {
+	return true
+}
+
+func (s s3RemoteStorageMaker) Make(conf *remote_pb.RemoteConf) (remote_storage.RemoteStorageClient, error) {
 	client := &s3RemoteStorageClient{
 		conf: conf,
 	}
 	config := &aws.Config{
-		Region:           aws.String(conf.S3Region),
-		Endpoint:         aws.String(conf.S3Endpoint),
-		S3ForcePathStyle: aws.Bool(true),
+		Region:                        aws.String(conf.S3Region),
+		Endpoint:                      aws.String(conf.S3Endpoint),
+		S3ForcePathStyle:              aws.Bool(conf.S3ForcePathStyle),
+		S3DisableContentMD5Validation: aws.Bool(true),
 	}
 	if conf.S3AccessKey != "" && conf.S3SecretKey != "" {
 		config.Credentials = credentials.NewStaticCredentials(conf.S3AccessKey, conf.S3SecretKey, "")
@@ -39,18 +47,25 @@ func (s s3RemoteStorageMaker) Make(conf *filer_pb.RemoteConf) (remote_storage.Re
 	if err != nil {
 		return nil, fmt.Errorf("create aws session: %v", err)
 	}
+	if conf.S3V4Signature {
+		sess.Handlers.Sign.PushBackNamed(v4.SignRequestHandler)
+	}
+	sess.Handlers.Build.PushBack(func(r *request.Request) {
+		r.HTTPRequest.Header.Set("User-Agent", "SeaweedFS/"+util.VERSION_NUMBER)
+	})
+	sess.Handlers.Build.PushFront(skipSha256PayloadSigning)
 	client.conn = s3.New(sess)
 	return client, nil
 }
 
 type s3RemoteStorageClient struct {
-	conf *filer_pb.RemoteConf
+	conf *remote_pb.RemoteConf
 	conn s3iface.S3API
 }
 
 var _ = remote_storage.RemoteStorageClient(&s3RemoteStorageClient{})
 
-func (s *s3RemoteStorageClient) Traverse(remote *filer_pb.RemoteStorageLocation, visitFn remote_storage.VisitFunc) (err error) {
+func (s *s3RemoteStorageClient) Traverse(remote *remote_pb.RemoteStorageLocation, visitFn remote_storage.VisitFunc) (err error) {
 
 	pathKey := remote.Path[1:]
 
@@ -92,7 +107,7 @@ func (s *s3RemoteStorageClient) Traverse(remote *filer_pb.RemoteStorageLocation,
 	}
 	return
 }
-func (s *s3RemoteStorageClient) ReadFile(loc *filer_pb.RemoteStorageLocation, offset int64, size int64) (data []byte, err error) {
+func (s *s3RemoteStorageClient) ReadFile(loc *remote_pb.RemoteStorageLocation, offset int64, size int64) (data []byte, err error) {
 	downloader := s3manager.NewDownloaderWithClient(s.conn, func(u *s3manager.Downloader) {
 		u.PartSize = int64(4 * 1024 * 1024)
 		u.Concurrency = 1
@@ -113,11 +128,15 @@ func (s *s3RemoteStorageClient) ReadFile(loc *filer_pb.RemoteStorageLocation, of
 	return writerAt.Bytes(), nil
 }
 
-func (s *s3RemoteStorageClient) WriteDirectory(loc *filer_pb.RemoteStorageLocation, entry *filer_pb.Entry) (err error) {
+func (s *s3RemoteStorageClient) WriteDirectory(loc *remote_pb.RemoteStorageLocation, entry *filer_pb.Entry) (err error) {
 	return nil
 }
 
-func (s *s3RemoteStorageClient) WriteFile(loc *filer_pb.RemoteStorageLocation, entry *filer_pb.Entry, reader io.Reader) (remoteEntry *filer_pb.RemoteEntry, err error) {
+func (s *s3RemoteStorageClient) RemoveDirectory(loc *remote_pb.RemoteStorageLocation) (err error) {
+	return nil
+}
+
+func (s *s3RemoteStorageClient) WriteFile(loc *remote_pb.RemoteStorageLocation, entry *filer_pb.Entry, reader io.Reader) (remoteEntry *filer_pb.RemoteEntry, err error) {
 
 	fileSize := int64(filer.FileSize(entry))
 
@@ -129,7 +148,7 @@ func (s *s3RemoteStorageClient) WriteFile(loc *filer_pb.RemoteStorageLocation, e
 	// Create an uploader with the session and custom options
 	uploader := s3manager.NewUploaderWithClient(s.conn, func(u *s3manager.Uploader) {
 		u.PartSize = partSize
-		u.Concurrency = 5
+		u.Concurrency = 1
 	})
 
 	// process tagging
@@ -143,15 +162,16 @@ func (s *s3RemoteStorageClient) WriteFile(loc *filer_pb.RemoteStorageLocation, e
 
 	// Upload the file to S3.
 	_, err = uploader.Upload(&s3manager.UploadInput{
-		Bucket:               aws.String(loc.Bucket),
-		Key:                  aws.String(loc.Path[1:]),
-		Body:                 reader,
-		Tagging:              aws.String(tags),
+		Bucket:       aws.String(loc.Bucket),
+		Key:          aws.String(loc.Path[1:]),
+		Body:         reader,
+		Tagging:      aws.String(tags),
+		StorageClass: aws.String(s.conf.S3StorageClass),
 	})
 
 	//in case it fails to upload
 	if err != nil {
-		return nil, fmt.Errorf("upload to s3 %s/%s%s: %v", loc.Name, loc.Bucket, loc.Path, err)
+		return nil, fmt.Errorf("upload to %s/%s%s: %v", loc.Name, loc.Bucket, loc.Path, err)
 	}
 
 	// read back the remote entry
@@ -170,7 +190,7 @@ func toTagging(attributes map[string][]byte) *s3.Tagging {
 	return tagging
 }
 
-func (s *s3RemoteStorageClient) readFileRemoteEntry(loc *filer_pb.RemoteStorageLocation) (*filer_pb.RemoteEntry, error) {
+func (s *s3RemoteStorageClient) readFileRemoteEntry(loc *remote_pb.RemoteStorageLocation) (*filer_pb.RemoteEntry, error) {
 	resp, err := s.conn.HeadObject(&s3.HeadObjectInput{
 		Bucket: aws.String(loc.Bucket),
 		Key:    aws.String(loc.Path[1:]),
@@ -188,7 +208,7 @@ func (s *s3RemoteStorageClient) readFileRemoteEntry(loc *filer_pb.RemoteStorageL
 
 }
 
-func (s *s3RemoteStorageClient) UpdateFileMetadata(loc *filer_pb.RemoteStorageLocation, oldEntry *filer_pb.Entry, newEntry *filer_pb.Entry) (err error) {
+func (s *s3RemoteStorageClient) UpdateFileMetadata(loc *remote_pb.RemoteStorageLocation, oldEntry *filer_pb.Entry, newEntry *filer_pb.Entry) (err error) {
 	if reflect.DeepEqual(oldEntry.Extended, newEntry.Extended) {
 		return nil
 	}
@@ -207,10 +227,52 @@ func (s *s3RemoteStorageClient) UpdateFileMetadata(loc *filer_pb.RemoteStorageLo
 	}
 	return
 }
-func (s *s3RemoteStorageClient) DeleteFile(loc *filer_pb.RemoteStorageLocation) (err error) {
+func (s *s3RemoteStorageClient) DeleteFile(loc *remote_pb.RemoteStorageLocation) (err error) {
 	_, err = s.conn.DeleteObject(&s3.DeleteObjectInput{
 		Bucket: aws.String(loc.Bucket),
 		Key:    aws.String(loc.Path[1:]),
 	})
 	return
 }
+
+func (s *s3RemoteStorageClient) ListBuckets() (buckets []*remote_storage.Bucket, err error) {
+	resp, err := s.conn.ListBuckets(&s3.ListBucketsInput{})
+	if err != nil {
+		return nil, fmt.Errorf("list buckets: %v", err)
+	}
+	for _, b := range resp.Buckets {
+		buckets = append(buckets, &remote_storage.Bucket{
+			Name:      *b.Name,
+			CreatedAt: *b.CreationDate,
+		})
+	}
+	return
+}
+
+func (s *s3RemoteStorageClient) CreateBucket(name string) (err error) {
+	_, err = s.conn.CreateBucket(&s3.CreateBucketInput{
+		ACL:                        nil,
+		Bucket:                     aws.String(name),
+		CreateBucketConfiguration:  nil,
+		GrantFullControl:           nil,
+		GrantRead:                  nil,
+		GrantReadACP:               nil,
+		GrantWrite:                 nil,
+		GrantWriteACP:              nil,
+		ObjectLockEnabledForBucket: nil,
+	})
+	if err != nil {
+		return fmt.Errorf("%s create bucket %s: %v", s.conf.Name, name, err)
+	}
+	return
+}
+
+func (s *s3RemoteStorageClient) DeleteBucket(name string) (err error) {
+	_, err = s.conn.DeleteBucket(&s3.DeleteBucketInput{
+		Bucket: aws.String(name),
+	})
+	if err != nil {
+		return fmt.Errorf("delete bucket %s: %v", name, err)
+	}
+	return
+}

weed/remote_storage/s3/storj.go

@@ -0,0 +1,49 @@
+package s3
+
+import (
+	"fmt"
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/aws/credentials"
+	"github.com/aws/aws-sdk-go/aws/session"
+	"github.com/aws/aws-sdk-go/service/s3"
+	"github.com/chrislusf/seaweedfs/weed/pb/remote_pb"
+	"github.com/chrislusf/seaweedfs/weed/remote_storage"
+	"github.com/chrislusf/seaweedfs/weed/util"
+	"os"
+)
+
+func init() {
+	remote_storage.RemoteStorageClientMakers["storj"] = new(StorjRemoteStorageMaker)
+}
+
+type StorjRemoteStorageMaker struct{}
+
+func (s StorjRemoteStorageMaker) HasBucket() bool {
+	return true
+}
+
+func (s StorjRemoteStorageMaker) Make(conf *remote_pb.RemoteConf) (remote_storage.RemoteStorageClient, error) {
+	client := &s3RemoteStorageClient{
+		conf: conf,
+	}
+	accessKey := util.Nvl(conf.StorjAccessKey, os.Getenv("AWS_ACCESS_KEY_ID"))
+	secretKey := util.Nvl(conf.StorjSecretKey, os.Getenv("AWS_SECRET_ACCESS_KEY"))
+
+	config := &aws.Config{
+		Endpoint:                      aws.String(conf.StorjEndpoint),
+		Region:                        aws.String("us-west-2"),
+		S3ForcePathStyle:              aws.Bool(true),
+		S3DisableContentMD5Validation: aws.Bool(true),
+	}
+	if accessKey != "" && secretKey != "" {
+		config.Credentials = credentials.NewStaticCredentials(accessKey, secretKey, "")
+	}
+
+	sess, err := session.NewSession(config)
+	if err != nil {
+		return nil, fmt.Errorf("create storj session: %v", err)
+	}
+	sess.Handlers.Build.PushFront(skipSha256PayloadSigning)
+	client.conn = s3.New(sess)
+	return client, nil
+}

weed/remote_storage/s3/tencent.go

@@ -0,0 +1,49 @@
+package s3
+
+import (
+	"fmt"
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/aws/credentials"
+	"github.com/aws/aws-sdk-go/aws/session"
+	"github.com/aws/aws-sdk-go/service/s3"
+	"github.com/chrislusf/seaweedfs/weed/pb/remote_pb"
+	"github.com/chrislusf/seaweedfs/weed/remote_storage"
+	"github.com/chrislusf/seaweedfs/weed/util"
+	"os"
+)
+
+func init() {
+	remote_storage.RemoteStorageClientMakers["tencent"] = new(TencentRemoteStorageMaker)
+}
+
+type TencentRemoteStorageMaker struct{}
+
+func (s TencentRemoteStorageMaker) HasBucket() bool {
+	return true
+}
+
+func (s TencentRemoteStorageMaker) Make(conf *remote_pb.RemoteConf) (remote_storage.RemoteStorageClient, error) {
+	client := &s3RemoteStorageClient{
+		conf: conf,
+	}
+	accessKey := util.Nvl(conf.TencentSecretId, os.Getenv("COS_SECRETID"))
+	secretKey := util.Nvl(conf.TencentSecretKey, os.Getenv("COS_SECRETKEY"))
+
+	config := &aws.Config{
+		Endpoint:                      aws.String(conf.TencentEndpoint),
+		Region:                        aws.String("us-west-2"),
+		S3ForcePathStyle:              aws.Bool(true),
+		S3DisableContentMD5Validation: aws.Bool(true),
+	}
+	if accessKey != "" && secretKey != "" {
+		config.Credentials = credentials.NewStaticCredentials(accessKey, secretKey, "")
+	}
+
+	sess, err := session.NewSession(config)
+	if err != nil {
+		return nil, fmt.Errorf("create tencent session: %v", err)
+	}
+	sess.Handlers.Build.PushFront(skipSha256PayloadSigning)
+	client.conn = s3.New(sess)
+	return client, nil
+}