diff --git a/source/libs/transport/inc/transComm.h b/source/libs/transport/inc/transComm.h
index 9eb51359690ab68e549ad7c1bcaad9c0ff62115d..843798817d57f152455a37df004e42968a76d42f 100644
--- a/source/libs/transport/inc/transComm.h
+++ b/source/libs/transport/inc/transComm.h
@@ -226,6 +226,7 @@ typedef struct {
   int         index;
   int         nAsync;
   uv_async_t* asyncs;
+  int8_t      stop;
 } SAsyncPool;
 
 SAsyncPool* transCreateAsyncPool(uv_loop_t* loop, int sz, void* arg, AsyncCB cb);
diff --git a/source/libs/transport/src/transCli.c b/source/libs/transport/src/transCli.c
index 32d1e7140e5346231f525069009b252236a7a0c2..557ed548f49b136d61f37b2d00381dcbc1ff5e04 100644
--- a/source/libs/transport/src/transCli.c
+++ b/source/libs/transport/src/transCli.c
@@ -1020,6 +1020,7 @@ void cliSendQuit(SCliThrd* thrd) {
   SCliMsg* msg = taosMemoryCalloc(1, sizeof(SCliMsg));
   msg->type = Quit;
   transAsyncSend(thrd->asyncPool, &msg->q);
+  atomic_store_8(&thrd->asyncPool->stop, 1);
 }
 void cliWalkCb(uv_handle_t* handle, void* arg) {
   if (!uv_is_closing(handle)) {
@@ -1238,7 +1239,9 @@ int transReleaseCliHandle(void* handle) {
   cmsg->msg = tmsg;
   cmsg->type = Release;
 
-  transAsyncSend(pThrd->asyncPool, &cmsg->q);
+  if (0 != transAsyncSend(pThrd->asyncPool, &cmsg->q)) {
+    return -1;
+  }
   return 0;
 }
 
@@ -1279,7 +1282,10 @@ int transSendRequest(void* shandle, const SEpSet* pEpSet, STransMsg* pReq, STran
   STraceId* trace = &pReq->info.traceId;
   tGDebug("%s send request at thread:%08" PRId64 ", dst:%s:%d, app:%p", transLabel(pTransInst), pThrd->pid,
           EPSET_GET_INUSE_IP(&pCtx->epSet), EPSET_GET_INUSE_PORT(&pCtx->epSet), pReq->info.ahandle);
-  ASSERT(transAsyncSend(pThrd->asyncPool, &(cliMsg->q)) == 0);
+  if (0 != transAsyncSend(pThrd->asyncPool, &(cliMsg->q))) {
+    destroyCmsg(cliMsg);
+    return -1;
+  }
   transReleaseExHandle(transGetInstMgt(), (int64_t)shandle);
   return 0;
 }
@@ -1323,7 +1329,10 @@ int transSendRecv(void* shandle, const SEpSet* pEpSet, STransMsg* pReq, STransMs
   tGDebug("%s send request at thread:%08" PRId64 ", dst:%s:%d, app:%p", transLabel(pTransInst), pThrd->pid,
           EPSET_GET_INUSE_IP(&pCtx->epSet), EPSET_GET_INUSE_PORT(&pCtx->epSet), pReq->info.ahandle);
 
-  transAsyncSend(pThrd->asyncPool, &(cliMsg->q));
+  if (0 != transAsyncSend(pThrd->asyncPool, &cliMsg->q)) {
+    destroyCmsg(cliMsg);
+    return -1;
+  }
   tsem_wait(sem);
   tsem_destroy(sem);
   taosMemoryFree(sem);
@@ -1358,7 +1367,10 @@ int transSetDefaultAddr(void* shandle, const char* ip, const char* fqdn) {
     SCliThrd* thrd = ((SCliObj*)pTransInst->tcphandle)->pThreadObj[i];
     tDebug("%s update epset at thread:%08" PRId64, pTransInst->label, thrd->pid);
 
-    transAsyncSend(thrd->asyncPool, &(cliMsg->q));
+    if (transAsyncSend(thrd->asyncPool, &(cliMsg->q)) != 0) {
+      destroyCmsg(cliMsg);
+      return -1;
+    }
   }
   transReleaseExHandle(transGetInstMgt(), (int64_t)shandle);
   return 0;
diff --git a/source/libs/transport/src/transComm.c b/source/libs/transport/src/transComm.c
index 7c76f69f0cc147682e5c451b1459aa99086af652..c89bbd408bf1010eed8128e28aabdd55616d1784 100644
--- a/source/libs/transport/src/transComm.c
+++ b/source/libs/transport/src/transComm.c
@@ -177,7 +177,6 @@ int transSetConnOption(uv_tcp_t* stream) {
 
 SAsyncPool* transCreateAsyncPool(uv_loop_t* loop, int sz, void* arg, AsyncCB cb) {
   SAsyncPool* pool = taosMemoryCalloc(1, sizeof(SAsyncPool));
-  pool->index = 0;
   pool->nAsync = sz;
   pool->asyncs = taosMemoryCalloc(1, sizeof(uv_async_t) * pool->nAsync);
 
@@ -207,6 +206,9 @@ void transDestroyAsyncPool(SAsyncPool* pool) {
   taosMemoryFree(pool);
 }
 int transAsyncSend(SAsyncPool* pool, queue* q) {
+  if (atomic_load_8(&pool->stop) == 1) {
+    return -1;
+  }
   int idx = pool->index;
   idx = idx % pool->nAsync;
   // no need mutex here