diff --git a/include/libs/monitor/clientMonitor.h b/include/libs/monitor/clientMonitor.h
index aa6ee6c9fc..abf7df1031 100644
--- a/include/libs/monitor/clientMonitor.h
+++ b/include/libs/monitor/clientMonitor.h
@@ -35,7 +35,7 @@ typedef enum {
   SLOW_LOG_WRITE = 0,
   SLOW_LOG_READ_RUNNING = 1,
   SLOW_LOG_READ_BEGINNIG = 2,
-  SLOW_LOG_READ_QUIT = 2,
+  SLOW_LOG_READ_QUIT = 3,
 } SLOW_LOG_QUEUE_TYPE;
 
 #define SLOW_LOG_SEND_SIZE_MAX 128*1024*1024
diff --git a/source/client/src/clientMonitor.c b/source/client/src/clientMonitor.c
index 320908e3de..3752aa64a4 100644
--- a/source/client/src/clientMonitor.c
+++ b/source/client/src/clientMonitor.c
@@ -717,11 +717,13 @@ static void* monitorThreadFunc(void *param){
       if(quitCnt == 0){
         monitorSendAllSlowLogAtQuit();
         if(quitCnt == 0){
+          uInfo("monitorThreadFunc quit since no slow log to send");
           break;
         }
         quitTime = taosGetMonoTimestampMs();
       }
       if(taosGetMonoTimestampMs() - quitTime > 500){   //quit at most 500ms
+        uInfo("monitorThreadFunc quit since timeout")
         break;
       }
     }
@@ -745,6 +747,7 @@ static void* monitorThreadFunc(void *param){
         monitorSendSlowLogAtRunning(slowLogData->clusterId);
       }else if(slowLogData->type == SLOW_LOG_READ_QUIT){
         if(monitorSendSlowLogAtQuit(slowLogData->clusterId)){
+          uInfo("monitorThreadFunc quit since all slow log sended");
           break;
         }
       }