skip deltaBeat if dn is zero (#3630)

* skip deltaBeat
https://github.com/seaweedfs/seaweedfs/issues/3629

* fix GrpcPort

* skip url :0

* skip empty DataCenter or Rack

* skip empty heartbeat Ip

* dell msg add DataCenter

* comment todo

* fix

weed/pb/master_pb/master_helper.go

@@ -0,0 +1,5 @@
+package master_pb
+
+func (v *VolumeLocation) IsEmptyUrl() bool {
+	return v.Url == "" || v.Url == ":0"
+}

weed/server/master_grpc_server.go

@@ -70,6 +70,7 @@ func (ms *MasterServer) SendHeartbeat(stream master_pb.Seaweed_SendHeartbeatServ
 			}
 
 			message := &master_pb.VolumeLocation{
+				DataCenter: dn.GetDataCenterId(),
 				Url:        dn.Url(),
 				PublicUrl:  dn.PublicUrl,
 			}
@@ -126,6 +127,10 @@ func (ms *MasterServer) SendHeartbeat(stream master_pb.Seaweed_SendHeartbeatServ
 
 		ms.Topo.Sequence.SetMax(heartbeat.MaxFileKey)
 		if dn == nil {
+			// Skip delta heartbeat for volume server versions  better than 3.28 https://github.com/seaweedfs/seaweedfs/pull/3630
+			if heartbeat.Ip == "" {
+				continue
+			} // ToDo must be removed after update major version
 			dcName, rackName := ms.Topo.Configuration.Locate(heartbeat.Ip, heartbeat.DataCenter, heartbeat.Rack)
 			dc := ms.Topo.GetOrCreateDataCenter(dcName)
 			rack := dc.GetOrCreateRack(rackName)
@@ -181,8 +186,10 @@ func (ms *MasterServer) SendHeartbeat(stream master_pb.Seaweed_SendHeartbeatServ
 		}
 
 		if len(heartbeat.Volumes) > 0 || heartbeat.HasNoVolumes {
+			if heartbeat.Ip != "" {
 				dcName, rackName := ms.Topo.Configuration.Locate(heartbeat.Ip, heartbeat.DataCenter, heartbeat.Rack)
 				ms.Topo.DataNodeRegistration(dcName, rackName, dn)
+			}
 
 			// process heartbeat.Volumes
 			stats.MasterReceivedHeartbeatCounter.WithLabelValues("Volumes").Inc()

weed/server/volume_grpc_client_to_master.go

@@ -160,11 +160,18 @@ func (vs *VolumeServer) doHeartbeat(masterAddress pb.ServerAddress, grpcDialOpti
 
 	volumeTickChan := time.Tick(sleepInterval)
 	ecShardTickChan := time.Tick(17 * sleepInterval)
-
+	dataCenter := vs.store.GetDataCenter()
+	rack := vs.store.GetRack()
+	ip := vs.store.Ip
+	port := uint32(vs.store.Port)
 	for {
 		select {
 		case volumeMessage := <-vs.store.NewVolumesChan:
 			deltaBeat := &master_pb.Heartbeat{
+				Ip:         ip,
+				Port:       port,
+				DataCenter: dataCenter,
+				Rack:       rack,
 				NewVolumes: []*master_pb.VolumeShortInformationMessage{
 					&volumeMessage,
 				},
@@ -176,6 +183,10 @@ func (vs *VolumeServer) doHeartbeat(masterAddress pb.ServerAddress, grpcDialOpti
 			}
 		case ecShardMessage := <-vs.store.NewEcShardsChan:
 			deltaBeat := &master_pb.Heartbeat{
+				Ip:         ip,
+				Port:       port,
+				DataCenter: dataCenter,
+				Rack:       rack,
 				NewEcShards: []*master_pb.VolumeEcShardInformationMessage{
 					&ecShardMessage,
 				},
@@ -188,6 +199,10 @@ func (vs *VolumeServer) doHeartbeat(masterAddress pb.ServerAddress, grpcDialOpti
 			}
 		case volumeMessage := <-vs.store.DeletedVolumesChan:
 			deltaBeat := &master_pb.Heartbeat{
+				Ip:         ip,
+				Port:       port,
+				DataCenter: dataCenter,
+				Rack:       rack,
 				DeletedVolumes: []*master_pb.VolumeShortInformationMessage{
 					&volumeMessage,
 				},
@@ -199,6 +214,10 @@ func (vs *VolumeServer) doHeartbeat(masterAddress pb.ServerAddress, grpcDialOpti
 			}
 		case ecShardMessage := <-vs.store.DeletedEcShardsChan:
 			deltaBeat := &master_pb.Heartbeat{
+				Ip:         ip,
+				Port:       port,
+				DataCenter: dataCenter,
+				Rack:       rack,
 				DeletedEcShards: []*master_pb.VolumeEcShardInformationMessage{
 					&ecShardMessage,
 				},
@@ -227,12 +246,12 @@ func (vs *VolumeServer) doHeartbeat(masterAddress pb.ServerAddress, grpcDialOpti
 		case <-vs.stopChan:
 			var volumeMessages []*master_pb.VolumeInformationMessage
 			emptyBeat := &master_pb.Heartbeat{
-				Ip:           vs.store.Ip,
+				Ip:           ip,
-				Port:         uint32(vs.store.Port),
+				Port:         port,
 				PublicUrl:    vs.store.PublicUrl,
 				MaxFileKey:   uint64(0),
-				DataCenter:   vs.store.GetDataCenter(),
+				DataCenter:   dataCenter,
-				Rack:         vs.store.GetRack(),
+				Rack:         rack,
 				Volumes:      volumeMessages,
 				HasNoVolumes: len(volumeMessages) == 0,
 			}

weed/topology/configuration.go

@@ -22,7 +22,6 @@ type topology struct {
 type Configuration struct {
 	XMLName xml.Name `xml:"Configuration"`
 	Topo    topology `xml:"Topology"`
-	ip2location map[string]loc // this is not used any more. leave it here for later.
 }
 
 func (c *Configuration) String() string {
@@ -33,12 +32,6 @@ func (c *Configuration) String() string {
 }
 
 func (c *Configuration) Locate(ip string, dcName string, rackName string) (dc string, rack string) {
-	if c != nil && c.ip2location != nil {
-		if loc, ok := c.ip2location[ip]; ok {
-			return loc.dcName, loc.rackName
-		}
-	}
-
 	if dcName == "" {
 		dcName = "DefaultDataCenter"
 	}

weed/wdclient/masterclient.go

@@ -262,6 +262,10 @@ func (mc *MasterClient) tryConnectToMaster(master pb.ServerAddress) (nextHintedL
 }
 
 func (mc *MasterClient) updateVidMap(resp *master_pb.KeepConnectedResponse) {
+	if resp.VolumeLocation.IsEmptyUrl() {
+		glog.V(0).Infof("updateVidMap ignore short heartbeat: %+v", resp)
+		return
+	}
 	// process new volume location
 	loc := Location{
 		Url:        resp.VolumeLocation.Url,