ensure metadata follow a specific folder

fix https://github.com/seaweedfs/seaweedfs/issues/5774

weed/command/filer_backup.go

@@ -9,6 +9,7 @@ import (
 	"github.com/seaweedfs/seaweedfs/weed/util"
 	"google.golang.org/grpc"
 	"regexp"
+	"strings"
 	"time"
 )
 
@@ -148,12 +149,17 @@ func doFilerBackup(grpcDialOption grpc.DialOption, backupOption *FilerBackupOpti
 		}()
 	}
 
+	prefix := sourcePath
+	if !strings.HasSuffix(prefix, "/") {
+		prefix = prefix + "/"
+	}
+
 	metadataFollowOption := &pb.MetadataFollowOption{
 		ClientName:             "backup_" + dataSink.GetName(),
 		ClientId:               clientId,
 		ClientEpoch:            clientEpoch,
 		SelfSignature:          0,
-		PathPrefix:             sourcePath,
+		PathPrefix:             prefix,
 		AdditionalPathPrefixes: nil,
 		DirectoriesToWatch:     nil,
 		StartTsNs:              startFrom.UnixNano(),

weed/command/filer_meta_backup.go

@@ -8,6 +8,7 @@ import (
 	"github.com/spf13/viper"
 	"google.golang.org/grpc"
 	"reflect"
+	"strings"
 	"time"
 
 	"github.com/seaweedfs/seaweedfs/weed/pb"
@@ -197,12 +198,16 @@ func (metaBackup *FilerMetaBackupOptions) streamMetadataBackup() error {
 
 	metaBackup.clientEpoch++
 
+	prefix := *metaBackup.filerDirectory
+	if !strings.HasSuffix(prefix, "/") {
+		prefix = prefix + "/"
+	}
 	metadataFollowOption := &pb.MetadataFollowOption{
 		ClientName:             "meta_backup",
 		ClientId:               metaBackup.clientId,
 		ClientEpoch:            metaBackup.clientEpoch,
 		SelfSignature:          0,
-		PathPrefix:             *metaBackup.filerDirectory,
+		PathPrefix:             prefix,
 		AdditionalPathPrefixes: nil,
 		DirectoriesToWatch:     nil,
 		StartTsNs:              startTime.UnixNano(),

weed/command/filer_remote_gateway_buckets.go

@@ -55,7 +55,7 @@ func (option *RemoteGatewayOptions) followBucketUpdatesAndUploadToRemote(filerSo
 		ClientId:               option.clientId,
 		ClientEpoch:            option.clientEpoch,
 		SelfSignature:          0,
-		PathPrefix:             option.bucketsDir,
+		PathPrefix:             option.bucketsDir + "/",
 		AdditionalPathPrefixes: []string{filer.DirectoryEtcRemote},
 		DirectoriesToWatch:     nil,
 		StartTsNs:              lastOffsetTs.UnixNano(),

weed/command/filer_remote_sync_dir.go

@@ -64,12 +64,17 @@ func followUpdatesAndUploadToRemote(option *RemoteSyncOptions, filerSource *sour
 
 	option.clientEpoch++
 
+	prefix := mountedDir
+	if !strings.HasSuffix(prefix, "/") {
+		prefix = prefix + "/"
+	}
+
 	metadataFollowOption := &pb.MetadataFollowOption{
 		ClientName:             "filer.remote.sync",
 		ClientId:               option.clientId,
 		ClientEpoch:            option.clientEpoch,
 		SelfSignature:          0,
-		PathPrefix:             mountedDir,
+		PathPrefix:             prefix,
 		AdditionalPathPrefixes: []string{filer.DirectoryEtcRemote},
 		DirectoriesToWatch:     nil,
 		StartTsNs:              lastOffsetTs.UnixNano(),

weed/command/filer_sync.go

@@ -296,12 +296,17 @@ func doSubscribeFilerMetaChanges(clientId int32, clientEpoch int32, grpcDialOpti
 		return setOffset(grpcDialOption, targetFiler, getSignaturePrefixByPath(sourcePath), sourceFilerSignature, offsetTsNs)
 	})
 
+	prefix := sourcePath
+	if !strings.HasSuffix(prefix, "/") {
+		prefix = prefix + "/"
+	}
+
 	metadataFollowOption := &pb.MetadataFollowOption{
 		ClientName:             clientName,
 		ClientId:               clientId,
 		ClientEpoch:            clientEpoch,
 		SelfSignature:          targetFilerSignature,
-		PathPrefix:             sourcePath,
+		PathPrefix:             prefix,
 		AdditionalPathPrefixes: nil,
 		DirectoriesToWatch:     nil,
 		StartTsNs:              sourceFilerOffsetTsNs,