diff --git a/source/libs/transport/src/trans.c b/source/libs/transport/src/trans.c
index 1a3e70e6e07d6c2a721eee07dfe4844ad1443c45..91f9a8ead209697618745e89b5b442b2f20d9c36 100644
--- a/source/libs/transport/src/trans.c
+++ b/source/libs/transport/src/trans.c
@@ -30,7 +30,8 @@ void* rpcOpen(const SRpcInit* pInit) {
     tstrncpy(pRpc->label, pInit->label, strlen(pInit->label));
   }
   pRpc->cfp = pInit->cfp;
-  pRpc->numOfThreads = pInit->numOfThreads > TSDB_MAX_RPC_THREADS ? TSDB_MAX_RPC_THREADS : pInit->numOfThreads;
+  // pRpc->numOfThreads = pInit->numOfThreads > TSDB_MAX_RPC_THREADS ? TSDB_MAX_RPC_THREADS : pInit->numOfThreads;
+  pRpc->numOfThreads = pInit->numOfThreads;
   pRpc->connType = pInit->connType;
   pRpc->idleTime = pInit->idleTime;
   pRpc->tcphandle = (*taosInitHandle[pRpc->connType])(0, pInit->localPort, pRpc->label, pRpc->numOfThreads, NULL, pRpc);
diff --git a/source/libs/transport/src/transCli.c b/source/libs/transport/src/transCli.c
index 1320e6e3ba5dcf109193d154f6586b50de072834..4ffaad3f84a5fab444aa0d72fe4c160019b68375 100644
--- a/source/libs/transport/src/transCli.c
+++ b/source/libs/transport/src/transCli.c
@@ -139,18 +139,16 @@ static void clientHandleResp(SCliConn* conn) {
 static void clientHandleExcept(SCliConn* pConn) {
   if (pConn->data == NULL) {
     clientConnDestroy(pConn, true);
-
     return;
   }
   tDebug("conn %p destroy", pConn);
   SCliMsg* pMsg = pConn->data;
+  transFreeMsg((pMsg->msg.pCont));
+  pMsg->msg.pCont = NULL;
 
   STransConnCtx* pCtx = pMsg->ctx;
   SRpcInfo*      pRpc = pCtx->pTransInst;
 
-  transFreeMsg((pMsg->msg.pCont));
-  pMsg->msg.pCont = NULL;
-
   SRpcMsg rpcMsg = {0};
   rpcMsg.ahandle = pCtx->ahandle;
   rpcMsg.code = -1;
@@ -254,7 +252,8 @@ static bool clientReadComplete(SConnBuffer* data) {
     if (msgLen > data->len) {
       data->left = msgLen - data->len;
       return false;
-    } else {
+    } else if (msgLen == data->len) {
+      data->left = 0;
       return true;
     }
   } else {
@@ -321,19 +320,19 @@ static void clientWriteCb(uv_write_t* req, int status) {
   SCliConn* pConn = req->data;
   if (status == 0) {
     tDebug("conn %p data already was written out", pConn);
+    SCliMsg* pMsg = pConn->data;
+    if (pMsg != NULL) {
+      transFreeMsg((pMsg->msg.pCont));
+      pMsg->msg.pCont = NULL;
+    }
+
   } else {
     tError("conn %p failed to write: %s", pConn, uv_err_name(status));
     clientHandleExcept(pConn);
     return;
   }
   SCliThrdObj* pThrd = pConn->hostThrd;
-  // if (pConn->stream == NULL) {
-  //  pConn->stream = (uv_stream_t*)malloc(sizeof(uv_tcp_t));
-  //  uv_tcp_init(pThrd->loop, (uv_tcp_t*)pConn->stream);
-  //  pConn->stream->data = pConn;
-  //}
   uv_read_start((uv_stream_t*)pConn->stream, clientAllocBufferCb, clientReadCb);
-  // impl later
 }
 
 static void clientWrite(SCliConn* pConn) {
@@ -378,7 +377,7 @@ static void clientHandleReq(SCliMsg* pMsg, SCliThrdObj* pThrd) {
     tDebug("conn %p get from conn pool", conn);
     conn->data = pMsg;
     conn->writeReq->data = conn;
-    // transDestroyBuffer(&conn->readBuf);
+    transDestroyBuffer(&conn->readBuf);
     clientWrite(conn);
   } else {
     SCliConn* conn = calloc(1, sizeof(SCliConn));
diff --git a/source/libs/transport/src/transSrv.c b/source/libs/transport/src/transSrv.c
index 8aa3995651b8a932b81e7cafaea820240f9402fa..485ed904e83f2000a9b9a0d552a0022e3babb004 100644
--- a/source/libs/transport/src/transSrv.c
+++ b/source/libs/transport/src/transSrv.c
@@ -306,6 +306,7 @@ void uvOnTimeoutCb(uv_timer_t* handle) {
 void uvOnWriteCb(uv_write_t* req, int status) {
   SSrvConn* conn = req->data;
   SSrvMsg*  smsg = conn->pSrvMsg;
+  destroySrvMsg(conn);
 
   transClearBuffer(&conn->readBuf);
   if (status == 0) {