diff --git a/source/client/inc/clientInt.h b/source/client/inc/clientInt.h
index d05abb2051..7c342b85d4 100644
--- a/source/client/inc/clientInt.h
+++ b/source/client/inc/clientInt.h
@@ -455,6 +455,8 @@ enum {
 
 void sqlReqLog(int64_t rid,  bool killed, int32_t code, int8_t type);
 
+void tmqMgmtClose(void);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/source/client/src/clientMain.c b/source/client/src/clientMain.c
index 56f89ffba6..f65edc103a 100644
--- a/source/client/src/clientMain.c
+++ b/source/client/src/clientMain.c
@@ -57,8 +57,6 @@ void taos_cleanup(void) {
   }
 
   monitorClose();
-  taosHashCleanup(appInfo.pInstMap);
-  taosHashCleanup(appInfo.pInstMapByClusterId);
   tscStopCrashReport();
 
   hbMgrCleanUp();
@@ -85,6 +83,8 @@ void taos_cleanup(void) {
 
   taosConvDestroy();
 
+  tmqMgmtClose();
+
   tscInfo("all local resources released");
   taosCleanupCfg();
   taosCloseLog();
diff --git a/source/client/src/clientMonitor.c b/source/client/src/clientMonitor.c
index d1a9897caa..ae2a57ba97 100644
--- a/source/client/src/clientMonitor.c
+++ b/source/client/src/clientMonitor.c
@@ -682,7 +682,7 @@ static void* monitorThreadFunc(void *param){
   tscDebug("monitorThreadFunc start");
   int64_t     quitTime = 0;
   while (1) {
-    if (slowLogFlag > 0) {
+    if (atomic_load_32(&slowLogFlag) > 0 > 0) {
       if(quitCnt == 0){
         monitorSendAllSlowLogAtQuit();
         if(quitCnt == 0){
@@ -727,10 +727,7 @@ static void* monitorThreadFunc(void *param){
     }
     tsem2_timewait(&monitorSem, 100);
   }
-
-  taosCloseQueue(monitorQueue);
-  tsem2_destroy(&monitorSem);
-  slowLogFlag = -2;
+  atomic_store_32(&slowLogFlag, -2);
   return NULL;
 }
 
@@ -826,10 +823,16 @@ void monitorClose() {
   taosHashCleanup(monitorCounterHash);
   taosHashCleanup(monitorSlowLogHash);
   taosTmrCleanUp(monitorTimer);
+  taosCloseQueue(monitorQueue);
+  tsem2_destroy(&monitorSem);
   taosWUnLockLatch(&monitorLock);
 }
 
 int32_t monitorPutData2MonitorQueue(MonitorSlowLogData data){
+  if (atomic_load_32(&slowLogFlag) == -2) {
+    tscError("[monitor] slow log thread is exiting");
+    return -1;
+  }
   MonitorSlowLogData* slowLogData = taosAllocateQitem(sizeof(MonitorSlowLogData), DEF_QITEM, 0);
   if (slowLogData == NULL) {
     tscError("[monitor] failed to allocate slow log data");
diff --git a/source/client/src/clientTmq.c b/source/client/src/clientTmq.c
index 10d5140a0b..3c6ef00bf4 100644
--- a/source/client/src/clientTmq.c
+++ b/source/client/src/clientTmq.c
@@ -30,7 +30,6 @@
 #define DEFAULT_ASKEP_INTERVAL         1000
 
 struct SMqMgmt {
-  int8_t  inited;
   tmr_h   timer;
   int32_t rsetId;
 };
@@ -1057,6 +1056,16 @@ void tmqFreeImpl(void* handle) {
 
   taosArrayDestroyEx(tmq->clientTopics, freeClientVgImpl);
   taos_close_internal(tmq->pTscObj);
+
+  if(tmq->commitTimer) {
+    taosTmrStopA(&tmq->commitTimer);
+  }
+  if(tmq->epTimer) {
+    taosTmrStopA(&tmq->epTimer);
+  }
+  if(tmq->hbLiveTimer) {
+    taosTmrStopA(&tmq->hbLiveTimer);
+  }
   taosMemoryFree(tmq);
 
   tscDebug("consumer:0x%" PRIx64 " closed", id);
@@ -1076,6 +1085,18 @@ static void tmqMgmtInit(void) {
   }
 }
 
+void tmqMgmtClose(void) {
+  if (tmqMgmt.timer) {
+    taosTmrCleanUp(tmqMgmt.timer);
+    tmqMgmt.timer = NULL;
+  }
+
+  if (tmqMgmt.rsetId >= 0) {
+    taosCloseRef(tmqMgmt.rsetId);
+    tmqMgmt.rsetId = -1;
+  }
+}
+
 #define SET_ERROR_MSG_TMQ(MSG) \
   if (errstr != NULL) snprintf(errstr, errstrLen, MSG);
 
diff --git a/source/libs/scheduler/src/scheduler.c b/source/libs/scheduler/src/scheduler.c
index 795c21c234..fc92be8214 100644
--- a/source/libs/scheduler/src/scheduler.c
+++ b/source/libs/scheduler/src/scheduler.c
@@ -201,6 +201,7 @@ void schedulerDestroy(void) {
   }
   SCH_UNLOCK(SCH_WRITE, &schMgmt.hbLock);
 
+  taosTmrCleanUp(schMgmt.timer);
   qWorkerDestroy(&schMgmt.queryMgmt);
   schMgmt.queryMgmt = NULL;
 }