diff --git a/src/os/darwin/src/tdarwin.c b/src/os/darwin/src/tdarwin.c
index 71e8a56466fbbfad778d0cdc49d38c5c9bf8c009..de37c76edd59058f0f99a63f96f425b383af405f 100644
--- a/src/os/darwin/src/tdarwin.c
+++ b/src/os/darwin/src/tdarwin.c
@@ -204,7 +204,6 @@ int taosOpenUDServerSocket(char *ip, short port) {
   char               name[128];
 
   pTrace("open ud socket:%s", name);
-  // if (tsAllowLocalhost) ip = "0.0.0.0";
   sprintf(name, "%s.%d", ip, port);
 
   bzero((char *)&serverAdd, sizeof(serverAdd));
diff --git a/src/os/linux/src/tlinux.c b/src/os/linux/src/tlinux.c
index f78250cb52629b533048628ac1ffa1bcdb9dd1b8..6a7225b47693f9c76c25fcdd3149d28381df77cf 100644
--- a/src/os/linux/src/tlinux.c
+++ b/src/os/linux/src/tlinux.c
@@ -197,7 +197,6 @@ int taosOpenUDServerSocket(char *ip, short port) {
   char               name[128];
 
   pTrace("open ud socket:%s", name);
-  // if (tsAllowLocalhost) ip = "0.0.0.0";
   sprintf(name, "%s.%d", ip, port);
 
   bzero((char *)&serverAdd, sizeof(serverAdd));
diff --git a/src/rpc/src/ttcpserver.c b/src/rpc/src/ttcpserver.c
index b6b0e07230773fdf6633cba5b1b90ac37091c9a6..abd474085474c3a59617ee5e8d7f7959c7247f71 100644
--- a/src/rpc/src/ttcpserver.c
+++ b/src/rpc/src/ttcpserver.c
@@ -195,8 +195,9 @@ static void taosProcessTcpData(void *param) {
 
       void *buffer = malloc(1024);
       int   headLen = taosReadMsg(pFdObj->fd, buffer, sizeof(STaosHeader));
+
       if (headLen != sizeof(STaosHeader)) {
-        tError("%s read error, headLen:%d", pThreadObj->label, headLen);
+        tError("%s read error, headLen:%d, errno:%d", pThreadObj->label, headLen, errno);
         taosCleanUpFdObj(pFdObj);
         tfree(buffer);
         continue;
diff --git a/src/util/src/tglobalcfg.c b/src/util/src/tglobalcfg.c
index 407761cff025cf6395bab2fc4b527dd38cb07d64..ab26eda348e0a9c1bb8af2a649a779d449056cee 100644
--- a/src/util/src/tglobalcfg.c
+++ b/src/util/src/tglobalcfg.c
@@ -77,7 +77,7 @@ float tsRatioOfQueryThreads = 0.5;
 char  tsPublicIp[TSDB_IPv4ADDR_LEN] = {0};
 char  tsInternalIp[TSDB_IPv4ADDR_LEN] = {0};
 char  tsPrivateIp[TSDB_IPv4ADDR_LEN] = {0};
-char  tsServerIpStr[TSDB_IPv4ADDR_LEN] = "0.0.0.0";
+char  tsServerIpStr[TSDB_IPv4ADDR_LEN] = "127.0.0.1";
 short tsNumOfVnodesPerCore = 8;
 short tsNumOfTotalVnodes = 0;
 short tsCheckHeaderFile = 0;
diff --git a/src/util/src/tsocket.c b/src/util/src/tsocket.c
index be352eb7adf908701224388a1138cade5fd40e4f..da57cd148a203d3597d920c0e2fb5a70c235f2fd 100644
--- a/src/util/src/tsocket.c
+++ b/src/util/src/tsocket.c
@@ -280,7 +280,6 @@ int taosOpenUdpSocket(char *ip, short port) {
   int                bufSize = 8192000;
 
   pTrace("open udp socket:%s:%d", ip, port);
-  // if (tsAllowLocalhost) ip = "0.0.0.0";
 
   memset((char *)&localAddr, 0, sizeof(localAddr));
   localAddr.sin_family = AF_INET;
@@ -345,7 +344,6 @@ int taosOpenTcpClientSocket(char *destIp, short destPort, char *clientIp) {
   int                ret;
 
   pTrace("open tcp client socket:%s:%d", destIp, destPort);
-  // if (tsAllowLocalhost) destIp = "0.0.0.0";
 
   sockFd = (int)socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
 
@@ -441,7 +439,6 @@ int taosOpenTcpServerSocket(char *ip, short port) {
   int                reuse;
 
   pTrace("open tcp server socket:%s:%d", ip, port);
-  // if (tsAllowLocalhost) ip = "0.0.0.0";
 
   bzero((char *)&serverAdd, sizeof(serverAdd));
   serverAdd.sin_family = AF_INET;
@@ -483,7 +480,6 @@ int taosOpenRawSocket(char *ip) {
   struct sockaddr_in rawAdd;
 
   pTrace("open udp raw socket:%s", ip);
-  // if (tsAllowLocalhost) ip = "0.0.0.0";
 
   fd = (int)socket(AF_INET, SOCK_RAW, IPPROTO_UDP);
   if (fd < 0) {