Merge pull request #3372 from kmlebedev/replicateWithExcludeDirectories

Makefile

@@ -10,5 +10,5 @@ install:
 full_install:
 	cd weed; go install -tags "elastic gocdk sqlite ydb tikv"
 
-test:
+tests:
 	cd weed; go test -tags "elastic gocdk sqlite ydb tikv" -v ./...

weed/command/filer_backup.go

@@ -8,6 +8,7 @@ import (
 	"github.com/chrislusf/seaweedfs/weed/security"
 	"github.com/chrislusf/seaweedfs/weed/util"
 	"google.golang.org/grpc"
+	"strings"
 	"time"
 )
 
@@ -15,6 +16,7 @@ type FilerBackupOptions struct {
 	isActivePassive *bool
 	filer           *string
 	path            *string
+	excludePaths    *string
 	debug           *bool
 	proxyByFiler    *bool
 	timeAgo         *time.Duration
@@ -28,6 +30,7 @@ func init() {
 	cmdFilerBackup.Run = runFilerBackup // break init cycle
 	filerBackupOptions.filer = cmdFilerBackup.Flag.String("filer", "localhost:8888", "filer of one SeaweedFS cluster")
 	filerBackupOptions.path = cmdFilerBackup.Flag.String("filerPath", "/", "directory to sync on filer")
+	filerBackupOptions.excludePaths = cmdFilerBackup.Flag.String("filerExcludePaths", "", "exclude directories to sync on filer")
 	filerBackupOptions.proxyByFiler = cmdFilerBackup.Flag.Bool("filerProxy", false, "read and write file chunks by filer instead of volume servers")
 	filerBackupOptions.debug = cmdFilerBackup.Flag.Bool("debug", false, "debug mode to print out received files")
 	filerBackupOptions.timeAgo = cmdFilerBackup.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\"")
@@ -84,6 +87,7 @@ func doFilerBackup(grpcDialOption grpc.DialOption, backupOption *FilerBackupOpti
 
 	sourceFiler := pb.ServerAddress(*backupOption.filer)
 	sourcePath := *backupOption.path
+	excludePaths := strings.Split(*backupOption.excludePaths, ",")
 	timeAgo := *backupOption.timeAgo
 	targetPath := dataSink.GetSinkToDirectory()
 	debug := *backupOption.debug
@@ -106,10 +110,14 @@ func doFilerBackup(grpcDialOption grpc.DialOption, backupOption *FilerBackupOpti
 
 	// create filer sink
 	filerSource := &source.FilerSource{}
-	filerSource.DoInitialize(sourceFiler.ToHttpAddress(), sourceFiler.ToGrpcAddress(), sourcePath, *backupOption.proxyByFiler)
+	filerSource.DoInitialize(
+		sourceFiler.ToHttpAddress(),
+		sourceFiler.ToGrpcAddress(),
+		sourcePath,
+		*backupOption.proxyByFiler)
 	dataSink.SetSourceFiler(filerSource)
 
-	processEventFn := genProcessFunction(sourcePath, targetPath, dataSink, debug)
+	processEventFn := genProcessFunction(sourcePath, targetPath, excludePaths, dataSink, debug)
 
 	processEventFnWithOffset := pb.AddOffsetFunc(processEventFn, 3*time.Second, func(counter int64, lastTsNs int64) error {
 		glog.V(0).Infof("backup %s progressed to %v %0.2f/sec", sourceFiler, time.Unix(0, lastTsNs), float64(counter)/float64(3))

weed/command/filer_sync.go

@@ -26,7 +26,9 @@ type SyncOptions struct {
 	filerA          *string
 	filerB          *string
 	aPath           *string
+	aExcludePaths   *string
 	bPath           *string
+	bExcludePaths   *string
 	aReplication    *string
 	bReplication    *string
 	aCollection     *string
@@ -58,7 +60,9 @@ func init() {
 	syncOptions.filerA = cmdFilerSynchronize.Flag.String("a", "", "filer A in one SeaweedFS cluster")
 	syncOptions.filerB = cmdFilerSynchronize.Flag.String("b", "", "filer B in the other SeaweedFS cluster")
 	syncOptions.aPath = cmdFilerSynchronize.Flag.String("a.path", "/", "directory to sync on filer A")
+	syncOptions.aExcludePaths = cmdFilerSynchronize.Flag.String("a.excludePaths", "", "exclude directories to sync on filer A")
 	syncOptions.bPath = cmdFilerSynchronize.Flag.String("b.path", "/", "directory to sync on filer B")
+	syncOptions.bExcludePaths = cmdFilerSynchronize.Flag.String("b.excludePaths", "", "exclude directories to sync on filer B")
 	syncOptions.aReplication = cmdFilerSynchronize.Flag.String("a.replication", "", "replication on filer A")
 	syncOptions.bReplication = cmdFilerSynchronize.Flag.String("b.replication", "", "replication on filer B")
 	syncOptions.aCollection = cmdFilerSynchronize.Flag.String("a.collection", "", "collection on filer A")
@@ -133,9 +137,24 @@ func runFilerSynchronize(cmd *Command, args []string) bool {
 		}
 		for {
 			syncOptions.clientEpoch++
-			err := doSubscribeFilerMetaChanges(syncOptions.clientId, syncOptions.clientEpoch, grpcDialOption, filerA, *syncOptions.aPath, *syncOptions.aProxyByFiler, filerB,
-				*syncOptions.bPath, *syncOptions.bReplication, *syncOptions.bCollection, *syncOptions.bTtlSec, *syncOptions.bProxyByFiler, *syncOptions.bDiskType,
-				*syncOptions.bDebug, aFilerSignature, bFilerSignature)
+			err := doSubscribeFilerMetaChanges(
+				syncOptions.clientId,
+				syncOptions.clientEpoch,
+				grpcDialOption,
+				filerA,
+				*syncOptions.aPath,
+				strings.Split(*syncOptions.aExcludePaths, ","),
+				*syncOptions.aProxyByFiler,
+				filerB,
+				*syncOptions.bPath,
+				*syncOptions.bReplication,
+				*syncOptions.bCollection,
+				*syncOptions.bTtlSec,
+				*syncOptions.bProxyByFiler,
+				*syncOptions.bDiskType,
+				*syncOptions.bDebug,
+				aFilerSignature,
+				bFilerSignature)
 			if err != nil {
 				glog.Errorf("sync from %s to %s: %v", *syncOptions.filerA, *syncOptions.filerB, err)
 				time.Sleep(1747 * time.Millisecond)
@@ -154,9 +173,24 @@ func runFilerSynchronize(cmd *Command, args []string) bool {
 		go func() {
 			for {
 				syncOptions.clientEpoch++
-				err := doSubscribeFilerMetaChanges(syncOptions.clientId, syncOptions.clientEpoch, grpcDialOption, filerB, *syncOptions.bPath, *syncOptions.bProxyByFiler, filerA,
-					*syncOptions.aPath, *syncOptions.aReplication, *syncOptions.aCollection, *syncOptions.aTtlSec, *syncOptions.aProxyByFiler, *syncOptions.aDiskType,
-					*syncOptions.aDebug, bFilerSignature, aFilerSignature)
+				err := doSubscribeFilerMetaChanges(
+					syncOptions.clientId,
+					syncOptions.clientEpoch,
+					grpcDialOption,
+					filerB,
+					*syncOptions.bPath,
+					strings.Split(*syncOptions.bExcludePaths, ","),
+					*syncOptions.bProxyByFiler,
+					filerA,
+					*syncOptions.aPath,
+					*syncOptions.aReplication,
+					*syncOptions.aCollection,
+					*syncOptions.aTtlSec,
+					*syncOptions.aProxyByFiler,
+					*syncOptions.aDiskType,
+					*syncOptions.aDebug,
+					bFilerSignature,
+					aFilerSignature)
 				if err != nil {
 					glog.Errorf("sync from %s to %s: %v", *syncOptions.filerB, *syncOptions.filerA, err)
 					time.Sleep(2147 * time.Millisecond)
@@ -186,7 +220,7 @@ func initOffsetFromTsMs(grpcDialOption grpc.DialOption, targetFiler pb.ServerAdd
 	return nil
 }
 
-func doSubscribeFilerMetaChanges(clientId int32, clientEpoch int32, grpcDialOption grpc.DialOption, sourceFiler pb.ServerAddress, sourcePath string, sourceReadChunkFromFiler bool, targetFiler pb.ServerAddress, targetPath string,
+func doSubscribeFilerMetaChanges(clientId int32, clientEpoch int32, grpcDialOption grpc.DialOption, sourceFiler pb.ServerAddress, sourcePath string, sourceExcludePaths []string, sourceReadChunkFromFiler bool, targetFiler pb.ServerAddress, targetPath string,
 	replicationStr, collection string, ttlSec int, sinkWriteChunkByFiler bool, diskType string, debug bool, sourceFilerSignature int32, targetFilerSignature int32) error {
 
 	// if first time, start from now
@@ -205,7 +239,7 @@ func doSubscribeFilerMetaChanges(clientId int32, clientEpoch int32, grpcDialOpti
 	filerSink.DoInitialize(targetFiler.ToHttpAddress(), targetFiler.ToGrpcAddress(), targetPath, replicationStr, collection, ttlSec, diskType, grpcDialOption, sinkWriteChunkByFiler)
 	filerSink.SetSourceFiler(filerSource)
 
-	persistEventFn := genProcessFunction(sourcePath, targetPath, filerSink, debug)
+	persistEventFn := genProcessFunction(sourcePath, targetPath, sourceExcludePaths, filerSink, debug)
 
 	processEventFn := func(resp *filer_pb.SubscribeMetadataResponse) error {
 		message := resp.EventNotification
@@ -302,7 +336,7 @@ func setOffset(grpcDialOption grpc.DialOption, filer pb.ServerAddress, signature
 
 }
 
-func genProcessFunction(sourcePath string, targetPath string, dataSink sink.ReplicationSink, debug bool) func(resp *filer_pb.SubscribeMetadataResponse) error {
+func genProcessFunction(sourcePath string, targetPath string, excludePaths []string, dataSink sink.ReplicationSink, debug bool) func(resp *filer_pb.SubscribeMetadataResponse) error {
 	// process function
 	processEventFn := func(resp *filer_pb.SubscribeMetadataResponse) error {
 		message := resp.EventNotification
@@ -322,7 +356,11 @@ func genProcessFunction(sourcePath string, targetPath string, dataSink sink.Repl
 		if !strings.HasPrefix(resp.Directory, sourcePath) {
 			return nil
 		}
-
+		for _, excludePath := range excludePaths {
+			if strings.HasPrefix(resp.Directory, excludePath) {
+				return nil
+			}
+		}
 		// handle deletions
 		if filer_pb.IsDelete(resp) {
 			if !strings.HasPrefix(string(sourceOldKey), sourcePath) {

weed/command/scaffold/replication.toml

@@ -13,6 +13,8 @@ grpcAddress = "localhost:18888"
 # this is not a directory on your hard drive, but on your filer.
 # i.e., all files with this "prefix" are sent to notification message queue.
 directory = "/buckets"
+# files from the directory separated by space are excluded from sending notifications
+excludeDirectories = "/buckets/tmp"
 
 [sink.local]
 enabled = false

weed/replication/replicator.go

@@ -18,6 +18,7 @@ import (
 type Replicator struct {
 	sink        sink.ReplicationSink
 	source      *source.FilerSource
+	excludeDirs []string
 }
 
 func NewReplicator(sourceConfig util.Configuration, configPrefix string, dataSink sink.ReplicationSink) *Replicator {
@@ -30,6 +31,7 @@ func NewReplicator(sourceConfig util.Configuration, configPrefix string, dataSin
 	return &Replicator{
 		sink:        dataSink,
 		source:      source,
+		excludeDirs: sourceConfig.GetStringSlice(configPrefix + "excludeDirectories"),
 	}
 }
 
@@ -41,6 +43,13 @@ func (r *Replicator) Replicate(ctx context.Context, key string, message *filer_p
 		glog.V(4).Infof("skipping %v outside of %v", key, r.source.Dir)
 		return nil
 	}
+	for _, excludeDir := range r.excludeDirs {
+		if strings.HasPrefix(key, excludeDir) {
+			glog.V(4).Infof("skipping %v of exclude dir %v", key, excludeDir)
+			return nil
+		}
+	}
+
 	var dateKey string
 	if r.sink.IsIncremental() {
 		var mTime int64