update log

nm/start.go

@@ -160,6 +160,7 @@ func monitorWorker(op *operate.DockerOp) {
 						select {
 						case <-ticker.C:
 							if isSend {
+								log.Info("The once-off message is send")
 								return
 							}
 							ticker = time.NewTicker(time.Second * 20)