diff --git a/source/common/src/tmsg.c b/source/common/src/tmsg.c
index 0ce46d1cd072a2ab898d5f894f90e0d02a8873b9..1b0b4b1e4b879001ea98057cb3769242bba61e0a 100644
--- a/source/common/src/tmsg.c
+++ b/source/common/src/tmsg.c
@@ -276,7 +276,7 @@ static int32_t tDeserializeSClientHbReq(SDecoder *pDecoder, SClientHbReq *pReq)
       pReq->query = taosMemoryCalloc(1, sizeof(*pReq->query));
       if (NULL == pReq->query) return -1;
       if (tDecodeU32(pDecoder, &pReq->query->connId) < 0) return -1;
-      
+
       int32_t num = 0;
       if (tDecodeI32(pDecoder, &num) < 0) return -1;
       if (num > 0) {
diff --git a/source/dnode/mnode/impl/src/mndStb.c b/source/dnode/mnode/impl/src/mndStb.c
index 3f2f4062f1bc49ab77f46b4099c850407ba7dd40..63bcef2a5bd80839ad5a7e6e052f18b46f1106c4 100644
--- a/source/dnode/mnode/impl/src/mndStb.c
+++ b/source/dnode/mnode/impl/src/mndStb.c
@@ -2929,7 +2929,7 @@ static int32_t mndRetrieveStb(SRpcMsg *pReq, SShowObj *pShow, SSDataBlock *pBloc
 
     if (pDb != NULL && pStb->dbUid != pDb->uid) {
       sdbRelease(pSdb, pStb);
-    continue;
+      continue;
     }
 
     cols = 0;
diff --git a/source/libs/transport/src/transCli.c b/source/libs/transport/src/transCli.c
index 50ed9fa61b181ae02fa934da1108a7e7fc130123..c23d6d0a1f42fc46f3b52b7bba8c1ca21f8e4f39 100644
--- a/source/libs/transport/src/transCli.c
+++ b/source/libs/transport/src/transCli.c
@@ -462,6 +462,7 @@ void cliHandleExceptImpl(SCliConn* pConn, int32_t code) {
   if (transQueueEmpty(&pConn->cliMsgs)) {
     if (pConn->broken == true && CONN_NO_PERSIST_BY_APP(pConn)) {
       tTrace("%s conn %p handle except, persist:0", CONN_GET_INST_LABEL(pConn), pConn);
+      if (T_REF_VAL_GET(pConn) > 1) transUnrefCliHandle(pConn);
       transUnrefCliHandle(pConn);
       return;
     }
@@ -521,6 +522,7 @@ void cliHandleExceptImpl(SCliConn* pConn, int32_t code) {
     destroyCmsg(pMsg);
     tTrace("%s conn %p start to destroy, ref:%d", CONN_GET_INST_LABEL(pConn), pConn, T_REF_VAL_GET(pConn));
   } while (!transQueueEmpty(&pConn->cliMsgs));
+  if (T_REF_VAL_GET(pConn) > 1) transUnrefCliHandle(pConn);
   transUnrefCliHandle(pConn);
 }
 void cliHandleExcept(SCliConn* conn) {