diff --git a/source/libs/scheduler/src/schRemote.c b/source/libs/scheduler/src/schRemote.c
index 8c9003a9b2af371ebdb50620f53d382c04609a03..ecd9daf1bcd3b83803754017aec27c1ebe62becf 100644
--- a/source/libs/scheduler/src/schRemote.c
+++ b/source/libs/scheduler/src/schRemote.c
@@ -20,7 +20,7 @@
 #include "tmsg.h"
 #include "tref.h"
 #include "trpc.h"
-
+// clang-format off
 int32_t schValidateRspMsgType(SSchJob *pJob, SSchTask *pTask, int32_t msgType) {
   int32_t lastMsgType = pTask->lastMsgType;
   int32_t taskStatus = SCH_GET_TASK_STATUS(pTask);
@@ -402,7 +402,7 @@ int32_t schHandleDropCallback(void *param, SDataBuf *pMsg, int32_t code) {
   qDebug("QID:0x%" PRIx64 ",TID:0x%" PRIx64 " drop task rsp received, code:0x%x", pParam->queryId, pParam->taskId,
          code);
   if (pMsg) {
-    taosMemoryFree(pMsg->pData);       
+    taosMemoryFree(pMsg->pData);
   }
   return TSDB_CODE_SUCCESS;
 }
@@ -415,7 +415,7 @@ int32_t schHandleLinkBrokenCallback(void *param, SDataBuf *pMsg, int32_t code) {
 
   if (head->isHbParam) {
     taosMemoryFree(pMsg->pData);
-    
+
     SSchHbCallbackParam *hbParam = (SSchHbCallbackParam *)param;
     SSchTrans            trans = {.pTrans = hbParam->pTrans, .pHandle = NULL};
     SCH_ERR_RET(schUpdateHbConnection(&hbParam->nodeEpId, &trans));
@@ -1104,7 +1104,7 @@ int32_t schBuildAndSendMsg(SSchJob *pJob, SSchTask *pTask, SQueryNodeAddr *addr,
 
 #if 1
   SSchTrans trans = {.pTrans = pJob->conn.pTrans, .pHandle = SCH_GET_TASK_HANDLE(pTask)};
-  schAsyncSendMsg(pJob, pTask, &trans, addr, msgType, msg, msgSize, persistHandle, (rpcCtx.args ? &rpcCtx : NULL));
+  code = schAsyncSendMsg(pJob, pTask, &trans, addr, msgType, msg, msgSize, persistHandle, (rpcCtx.args ? &rpcCtx : NULL));
   msg = NULL;
   SCH_ERR_JRET(code);
 
@@ -1114,7 +1114,7 @@ int32_t schBuildAndSendMsg(SSchJob *pJob, SSchTask *pTask, SQueryNodeAddr *addr,
 #else
   if (TDMT_VND_SUBMIT != msgType) {
     SSchTrans trans = {.pTrans = pJob->conn.pTrans, .pHandle = SCH_GET_TASK_HANDLE(pTask)};
-    schAsyncSendMsg(pJob, pTask, &trans, addr, msgType, msg, msgSize, persistHandle, (rpcCtx.args ? &rpcCtx : NULL));
+    code = schAsyncSendMsg(pJob, pTask, &trans, addr, msgType, msg, msgSize, persistHandle, (rpcCtx.args ? &rpcCtx : NULL));
     msg = NULL;
     SCH_ERR_JRET(code);
 
@@ -1136,3 +1136,4 @@ _return:
   taosMemoryFreeClear(msg);
   SCH_RET(code);
 }
+// clang-format on
diff --git a/source/libs/transport/src/transCli.c b/source/libs/transport/src/transCli.c
index 763483cbf6245448afa6d70e7952862ce88cbfee..7052b0b915137678d6aff528a26540a973cd74f5 100644
--- a/source/libs/transport/src/transCli.c
+++ b/source/libs/transport/src/transCli.c
@@ -1432,7 +1432,7 @@ int transSendRequest(void* shandle, const SEpSet* pEpSet, STransMsg* pReq, STran
   if (pThrd == NULL && valid == false) {
     transFreeMsg(pReq->pCont);
     transReleaseExHandle(transGetInstMgt(), (int64_t)shandle);
-    return -1;
+    return TSDB_CODE_RPC_BROKEN_LINK;
   }
 
   TRACE_SET_MSGID(&pReq->info.traceId, tGenIdPI64());
@@ -1477,7 +1477,7 @@ int transSendRecv(void* shandle, const SEpSet* pEpSet, STransMsg* pReq, STransMs
   if (pThrd == NULL && valid == false) {
     transFreeMsg(pReq->pCont);
     transReleaseExHandle(transGetInstMgt(), (int64_t)shandle);
-    return -1;
+    return TSDB_CODE_RPC_BROKEN_LINK;
   }
 
   tsem_t* sem = taosMemoryCalloc(1, sizeof(tsem_t));
diff --git a/source/libs/transport/src/transSvr.c b/source/libs/transport/src/transSvr.c
index db05aefe7b1930b286e3a2cc8aa92a251077939d..447db7613656613255369230138979a7596754a9 100644
--- a/source/libs/transport/src/transSvr.c
+++ b/source/libs/transport/src/transSvr.c
@@ -275,16 +275,15 @@ void uvOnRecvCb(uv_stream_t* cli, ssize_t nread, const uv_buf_t* buf) {
     if (pBuf->len <= TRANS_PACKET_LIMIT) {
       while (transReadComplete(pBuf)) {
         tTrace("%s conn %p alread read complete packet", transLabel(pTransInst), conn);
-        if (pBuf->invalid) {
-          tTrace("%s conn %p alread read invalid packet", transLabel(pTransInst), conn);
+        if (true == pBuf->invalid || false == uvHandleReq(conn)) {
+          tError("%s conn %p read invalid packet", transLabel(pTransInst), conn);
           destroyConn(conn, true);
           return;
-        } else {
-          if (false == uvHandleReq(conn)) break;
         }
       }
       return;
     } else {
+      tError("%s conn %p read invalid packet, exceed limit", transLabel(pTransInst), conn);
       destroyConn(conn, true);
       return;
     }