add nm heartbeat time monitor

nm/start.go

@@ -82,7 +82,7 @@ func StartMonitor() {
 			log.Info("Monitoring node manager client thread start......")
 			for _, managerClient := range usedNodeManagerClient {
 				log.WithField("Status", managerClient.Status).WithField("Is Del", managerClient.IsDel).WithField("EndPoint", managerClient.Endpoint).Info("Monitoring node manager client thread")
-				if managerClient.GetStatus() {
+				if managerClient.GetStatus() && !managerClient.IsDel {
 					sub := time.Now().Sub(managerClient.GetLastHeartTime()).Seconds()
 					log.WithField("time(uint seconds)", sub).Info("Main thread monitor nm heartbeat time")
 					if int64(sub) > conf.GetConfig().HeartRespTimeSecond {