diff --git a/source/libs/transport/src/transCli.c b/source/libs/transport/src/transCli.c
index 54ffcabc8d..064c110a9f 100644
--- a/source/libs/transport/src/transCli.c
+++ b/source/libs/transport/src/transCli.c
@@ -60,6 +60,7 @@ typedef struct SCliThrd {
   int64_t     pid;     // pid
   uv_loop_t*  loop;
   SAsyncPool* asyncPool;
+  uv_idle_t*  idle;
   uv_timer_t  timer;
   void*       pool;  // conn pool
 
@@ -116,6 +117,7 @@ static void cliSendCb(uv_write_t* req, int status);
 // callback after conn  to server
 static void cliConnCb(uv_connect_t* req, int status);
 static void cliAsyncCb(uv_async_t* handle);
+static void cliIdleCb(uv_idle_t* handle);
 
 static int cliAppCb(SCliConn* pConn, STransMsg* pResp, SCliMsg* pMsg);
 
@@ -962,6 +964,10 @@ static void cliAsyncCb(uv_async_t* handle) {
   }
   if (pThrd->stopMsg != NULL) cliHandleQuit(pThrd->stopMsg, pThrd);
 }
+static void cliIdleCb(uv_idle_t* handle) {
+  SCliThrd* thrd = handle->data;
+  tTrace("do idle work");
+}
 
 static void* cliWorkThread(void* arg) {
   SCliThrd* pThrd = (SCliThrd*)arg;
@@ -1024,6 +1030,11 @@ static SCliThrd* createThrdObj() {
   uv_timer_init(pThrd->loop, &pThrd->timer);
   pThrd->timer.data = pThrd;
 
+  // pThrd->idle = taosMemoryCalloc(1, sizeof(uv_idle_t));
+  // uv_idle_init(pThrd->loop, pThrd->idle);
+  // pThrd->idle->data = pThrd;
+  //  uv_idle_start(pThrd->idle, cliIdleCb);
+
   pThrd->pool = createConnPool(4);
   transDQCreate(pThrd->loop, &pThrd->delayQueue);
 
@@ -1045,6 +1056,8 @@ static void destroyThrdObj(SCliThrd* pThrd) {
 
   transDQDestroy(pThrd->delayQueue, destroyCmsg);
   transDQDestroy(pThrd->timeoutQueue, NULL);
+
+  taosMemoryFree(pThrd->idle);
   taosMemoryFree(pThrd->loop);
   taosMemoryFree(pThrd);
 }
diff --git a/source/libs/transport/src/transComm.c b/source/libs/transport/src/transComm.c
index fb59aafb33..c99effb26f 100644
--- a/source/libs/transport/src/transComm.c
+++ b/source/libs/transport/src/transComm.c
@@ -152,16 +152,18 @@ int transDumpFromBuffer(SConnBuffer* connBuf, char** buf) {
 
 int transResetBuffer(SConnBuffer* connBuf) {
   SConnBuffer* p = connBuf;
-  if (p->total <= p->len) {
+  if (p->total < p->len) {
     int left = p->len - p->total;
     memmove(p->buf, p->buf + p->total, left);
     p->left = -1;
     p->total = 0;
     p->len = left;
-  } else {
+  } else if (p->total == p->len) {
     p->left = -1;
     p->total = 0;
     p->len = 0;
+  } else {
+    assert(0);
   }
   return 0;
 }
diff --git a/source/libs/transport/src/transSvr.c b/source/libs/transport/src/transSvr.c
index e360926b40..a97e0b53c1 100644
--- a/source/libs/transport/src/transSvr.c
+++ b/source/libs/transport/src/transSvr.c
@@ -238,7 +238,7 @@ static void uvHandleReq(SSvrConn* pConn) {
   transMsg.msgType = pHead->msgType;
   transMsg.code = pHead->code;
 
-  transClearBuffer(&pConn->readBuf);
+  // transClearBuffer(&pConn->readBuf);
 
   pConn->inType = pHead->msgType;
   if (pConn->status == ConnNormal) {