diff --git a/source/libs/transport/src/transCli.c b/source/libs/transport/src/transCli.c
index 11f3f070c0..82c4ef8278 100644
--- a/source/libs/transport/src/transCli.c
+++ b/source/libs/transport/src/transCli.c
@@ -671,7 +671,7 @@ static SCliConn* cliCreateConn(SCliThrd* pThrd) {
   conn->stream = (uv_stream_t*)taosMemoryMalloc(sizeof(uv_tcp_t));
   uv_tcp_init(pThrd->loop, (uv_tcp_t*)(conn->stream));
   conn->stream->data = conn;
-  transSetConnOption((uv_tcp_t*)conn->stream);
+  // transSetConnOption((uv_tcp_t*)conn->stream);
 
   uv_timer_t* timer = taosArrayGetSize(pThrd->timerList) > 0 ? *(uv_timer_t**)taosArrayPop(pThrd->timerList) : NULL;
   if (timer == NULL) {
@@ -1067,9 +1067,10 @@ void cliHandleReq(SCliMsg* pMsg, SCliThrd* pThrd) {
   STransConnCtx* pCtx = pMsg->ctx;
 
   cliMayCvtFqdnToIp(&pCtx->epSet, &pThrd->cvtAddr);
+  STraceId* trace = &pMsg->msg.info.traceId;
 
   if (!EPSET_IS_VALID(&pCtx->epSet)) {
-    tError("invalid epset");
+    tGError("%s, msg %s sent with invalid epset", pTransInst->label, TMSG_INFO(pMsg->msg.msgType));
     destroyCmsg(pMsg);
     return;
   }
@@ -1138,10 +1139,29 @@ void cliHandleReq(SCliMsg* pMsg, SCliThrd* pThrd) {
     addr.sin_addr.s_addr = ipaddr;
     addr.sin_port = (uint16_t)htons((uint16_t)conn->port);
 
-    STraceId* trace = &(pMsg->msg.info.traceId);
     tGTrace("%s conn %p try to connect to %s:%d", pTransInst->label, conn, conn->ip, conn->port);
+    int32_t fd = taosCreateSocketWithTimeout(TRANS_CONN_TIMEOUT * 4);
+    if (fd == -1) {
+      tGError("%s conn %p failed to create socket, reason:%s", transLabel(pTransInst), conn,
+              tstrerror(TAOS_SYSTEM_ERROR(errno)));
+      cliHandleExcept(conn);
+      errno = 0;
+      return;
+    }
+    int ret = uv_tcp_open((uv_tcp_t*)conn->stream, fd);
+    if (ret != 0) {
+      tGError("%s conn %p failed to set stream, reason:%s", transLabel(pTransInst), conn, uv_err_name(ret));
+      cliHandleExcept(conn);
+      return;
+    }
+    ret = transSetConnOption((uv_tcp_t*)conn->stream);
+    if (ret != 0) {
+      tGError("%s conn %p failed to set socket opt, reason:%s", transLabel(pTransInst), conn, uv_err_name(ret));
+      cliHandleExcept(conn);
+      return;
+    }
 
-    int ret = uv_tcp_connect(&conn->connReq, (uv_tcp_t*)(conn->stream), (const struct sockaddr*)&addr, cliConnCb);
+    ret = uv_tcp_connect(&conn->connReq, (uv_tcp_t*)(conn->stream), (const struct sockaddr*)&addr, cliConnCb);
     if (ret != 0) {
       tGError("%s conn %p failed to connect to %s:%d, reason:%s", pTransInst->label, conn, conn->ip, conn->port,
               uv_err_name(ret));
@@ -1156,7 +1176,6 @@ void cliHandleReq(SCliMsg* pMsg, SCliThrd* pThrd) {
     }
     uv_timer_start(conn->timer, cliConnTimeout, TRANS_CONN_TIMEOUT, 0);
   }
-  STraceId* trace = &pMsg->msg.info.traceId;
   tGTrace("%s conn %p ready", pTransInst->label, conn);
 }
 static void cliAsyncCb(uv_async_t* handle) {
diff --git a/source/libs/transport/src/transComm.c b/source/libs/transport/src/transComm.c
index 1161ed7c00..41233a6526 100644
--- a/source/libs/transport/src/transComm.c
+++ b/source/libs/transport/src/transComm.c
@@ -205,6 +205,10 @@ bool transReadComplete(SConnBuffer* connBuf) {
 }
 
 int transSetConnOption(uv_tcp_t* stream) {
+#if defined(WINDOWS) || defined(DARWIN)
+#else
+  uv_tcp_keepalive(stream, 1, 20);
+#endif
   return uv_tcp_nodelay(stream, 1);
   // int ret = uv_tcp_keepalive(stream, 5, 60);
 }
diff --git a/source/os/src/osSocket.c b/source/os/src/osSocket.c
index de628c7596..6b0bfb3a02 100644
--- a/source/os/src/osSocket.c
+++ b/source/os/src/osSocket.c
@@ -55,7 +55,7 @@ typedef struct TdSocket {
 #endif
   int      refId;
   SocketFd fd;
-} * TdSocketPtr, TdSocket;
+} *TdSocketPtr, TdSocket;
 
 typedef struct TdSocketServer {
 #if SOCKET_WITH_LOCK
@@ -63,7 +63,7 @@ typedef struct TdSocketServer {
 #endif
   int      refId;
   SocketFd fd;
-} * TdSocketServerPtr, TdSocketServer;
+} *TdSocketServerPtr, TdSocketServer;
 
 typedef struct TdEpoll {
 #if SOCKET_WITH_LOCK
@@ -71,7 +71,7 @@ typedef struct TdEpoll {
 #endif
   int     refId;
   EpollFd fd;
-} * TdEpollPtr, TdEpoll;
+} *TdEpollPtr, TdEpoll;
 
 #if 0
 int32_t taosSendto(TdSocketPtr pSocket, void *buf, int len, unsigned int flags, const struct sockaddr *dest_addr,
@@ -1005,7 +1005,7 @@ int32_t taosGetFqdn(char *fqdn) {
   // immediately
   // hints.ai_family = AF_INET;
   strcpy(fqdn, hostname);
-  strcpy(fqdn+strlen(hostname), ".local");
+  strcpy(fqdn + strlen(hostname), ".local");
 #else   // __APPLE__
   struct addrinfo  hints = {0};
   struct addrinfo *result = NULL;
@@ -1060,7 +1060,7 @@ int32_t taosCreateSocketWithTimeout(uint32_t timeout) {
 #if defined(WINDOWS)
   SOCKET fd;
 #else
-  int      fd;
+  int fd;
 #endif
   if ((fd = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP)) == INVALID_SOCKET) {
     return -1;
@@ -1071,11 +1071,12 @@ int32_t taosCreateSocketWithTimeout(uint32_t timeout) {
     return -1;
   }
 #elif defined(_TD_DARWIN_64)
-  uint32_t conn_timeout_ms = timeout * 1000;
-  if (0 != setsockopt(fd, IPPROTO_TCP, TCP_CONNECTIONTIMEOUT, (char *)&conn_timeout_ms, sizeof(conn_timeout_ms))) {
-    taosCloseSocketNoCheck1(fd);
-    return -1;
-  }
+  // invalid config
+  // uint32_t conn_timeout_ms = timeout * 1000;
+  // if (0 != setsockopt(fd, IPPROTO_TCP, TCP_CONNECTIONTIMEOUT, (char *)&conn_timeout_ms, sizeof(conn_timeout_ms))) {
+  //  taosCloseSocketNoCheck1(fd);
+  //  return -1;
+  //}
 #else  // Linux like systems
   uint32_t conn_timeout_ms = timeout * 1000;
   if (0 != setsockopt(fd, IPPROTO_TCP, TCP_USER_TIMEOUT, (char *)&conn_timeout_ms, sizeof(conn_timeout_ms))) {