grpc: watch metadata changes by directory

7 files changed, 244 insertions, 216 deletions

diff --git a/other/java/client/src/main/proto/filer.proto b/other/java/client/src/main/proto/filer.proto
index 1f1634f9b..66c6d2a13 100644
--- a/other/java/client/src/main/proto/filer.proto
+++ b/other/java/client/src/main/proto/filer.proto
@@ -342,6 +342,7 @@ message SubscribeMetadataRequest {
     int32 client_id = 7;
     int64 until_ns = 8;
     int32 client_epoch = 9;
+    repeated string directories = 10;  // exact directory to watch
 }
 message SubscribeMetadataResponse {
     string directory = 1;
diff --git a/weed/pb/filer.proto b/weed/pb/filer.proto
index 1f1634f9b..66c6d2a13 100644
--- a/weed/pb/filer.proto
+++ b/weed/pb/filer.proto
@@ -342,6 +342,7 @@ message SubscribeMetadataRequest {
     int32 client_id = 7;
     int64 until_ns = 8;
     int32 client_epoch = 9;
+    repeated string directories = 10;  // exact directory to watch
 }
 message SubscribeMetadataResponse {
     string directory = 1;
diff --git a/weed/pb/filer_pb/filer.pb.go b/weed/pb/filer_pb/filer.pb.go
index 00b7e9245..eb9047e25 100644
--- a/weed/pb/filer_pb/filer.pb.go
+++ b/weed/pb/filer_pb/filer.pb.go
@@ -2812,6 +2812,7 @@ type SubscribeMetadataRequest struct {
 	ClientId     int32    `protobuf:"varint,7,opt,name=client_id,json=clientId,proto3" json:"client_id,omitempty"`
 	UntilNs      int64    `protobuf:"varint,8,opt,name=until_ns,json=untilNs,proto3" json:"until_ns,omitempty"`
 	ClientEpoch  int32    `protobuf:"varint,9,opt,name=client_epoch,json=clientEpoch,proto3" json:"client_epoch,omitempty"`
+	Directories  []string `protobuf:"bytes,10,rep,name=directories,proto3" json:"directories,omitempty"` // exact directory to watch
 }
 
 func (x *SubscribeMetadataRequest) Reset() {
@@ -2902,6 +2903,13 @@ func (x *SubscribeMetadataRequest) GetClientEpoch() int32 {
 	return 0
 }
 
+func (x *SubscribeMetadataRequest) GetDirectories() []string {
+	if x != nil {
+		return x.Directories
+	}
+	return nil
+}
+
 type SubscribeMetadataResponse struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -3231,9 +3239,9 @@ func (x *LocateBrokerResponse) GetResources() []*LocateBrokerResponse_Resource {
 	return nil
 }
 
-// ///////////////////////
+/////////////////////////
 // Key-Value operations
-// ///////////////////////
+/////////////////////////
 type KvGetRequest struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -3438,9 +3446,9 @@ func (x *KvPutResponse) GetError() string {
 	return ""
 }
 
-// ///////////////////////
+/////////////////////////
 // path-based configurations
-// ///////////////////////
+/////////////////////////
 type FilerConf struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -3496,9 +3504,9 @@ func (x *FilerConf) GetLocations() []*FilerConf_PathConf {
 	return nil
 }
 
-// ///////////////////////
+/////////////////////////
 // Remote Storage related
-// ///////////////////////
+/////////////////////////
 type CacheRemoteObjectToLocalClusterRequest struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -4165,7 +4173,7 @@ var file_filer_proto_rawDesc = []byte{
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 }
 
 var (
diff --git a/weed/pb/master_pb/master.pb.go b/weed/pb/master_pb/master.pb.go
index 2a78d4c45..afc97b0cd 100644
--- a/weed/pb/master_pb/master.pb.go
+++ b/weed/pb/master_pb/master.pb.go
@@ -1611,7 +1611,9 @@ func (x *StatisticsResponse) GetFileCount() uint64 {
 	return 0
 }
 
+//
 // collection related
+//
 type Collection struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -1846,7 +1848,9 @@ func (*CollectionDeleteResponse) Descriptor() ([]byte, []int) {
 	return file_master_proto_rawDescGZIP(), []int{23}
 }
 
+//
 // volume related
+//
 type DiskInfo struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
diff --git a/weed/pb/mq_pb/mq.pb.go b/weed/pb/mq_pb/mq.pb.go
index 4e190f779..1f837d7bf 100644
--- a/weed/pb/mq_pb/mq.pb.go
+++ b/weed/pb/mq_pb/mq.pb.go
@@ -20,7 +20,7 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// ////////////////////////////////////////////////
+//////////////////////////////////////////////////
 type SegmentInfo struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -617,7 +617,7 @@ func (x *CheckBrokerLoadResponse) GetBytesCount() int64 {
 	return 0
 }
 
-// ////////////////////////////////////////////////
+//////////////////////////////////////////////////
 type PublishRequest struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
diff --git a/weed/pb/remote_pb/remote.pb.go b/weed/pb/remote_pb/remote.pb.go
index 6e652df18..fbe77a4ac 100644
--- a/weed/pb/remote_pb/remote.pb.go
+++ b/weed/pb/remote_pb/remote.pb.go
@@ -20,9 +20,9 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// ///////////////////////
+/////////////////////////
 // Remote Storage related
-// ///////////////////////
+/////////////////////////
 type RemoteConf struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
diff --git a/weed/server/filer_grpc_server_sub_meta.go b/weed/server/filer_grpc_server_sub_meta.go
index 03f4f4281..bd24ab54f 100644
--- a/weed/server/filer_grpc_server_sub_meta.go
+++ b/weed/server/filer_grpc_server_sub_meta.go
@@ -223,6 +223,8 @@ func (fs *FilerServer) eachEventNotificationFn(req *filer_pb.SubscribeMetadataRe
 
 		if hasPrefixIn(fullpath, req.PathPrefixes) {
 			// good
+		} else if matchByDirectory(dirPath, req.Directories) {
+			// good
 		} else {
 			if !strings.HasPrefix(fullpath, req.PathPrefix) {
 				if eventNotification.NewParentPath != "" {
@@ -263,6 +265,15 @@ func hasPrefixIn(text string, prefixes []string) bool {
 	return false
 }
 
+func matchByDirectory(dirPath string, directories []string) bool {
+	for _, dir := range directories {
+		if dirPath == dir {
+			return true
+		}
+	}
+	return false
+}
+
 func (fs *FilerServer) addClient(clientType string, clientAddress string, clientId int32, clientEpoch int32) (alreadyKnown bool, clientName string) {
 	clientName = clientType + "@" + clientAddress
 	glog.V(0).Infof("+ listener %v", clientName)