diff --git a/src/inc/sdb.h b/src/inc/sdb.h
index 4a1969b700..f645039441 100644
--- a/src/inc/sdb.h
+++ b/src/inc/sdb.h
@@ -23,10 +23,10 @@ extern "C" {
 #include "taosmsg.h"
 #include "tsdb.h"
 
-extern short    sdbPeerPort;
-extern short    sdbSyncPort;
+extern short    tsMgmtMgmtPort;
+extern short    tsMgmtSyncPort;
 extern int      sdbMaxNodes;
-extern int      sdbHbTimer;  // seconds
+extern int      tsMgmtPeerHBTimer;  // seconds
 extern char     sdbZone[];
 extern char     sdbMasterIp[];
 extern char     sdbPrivateIp[];
diff --git a/src/inc/trpc.h b/src/inc/trpc.h
index 3ae6e9ea97..ef86e672d1 100644
--- a/src/inc/trpc.h
+++ b/src/inc/trpc.h
@@ -25,7 +25,6 @@ extern "C" {
 
 #define TAOS_CONN_UDPS     0
 #define TAOS_CONN_UDPC     1
-#define TAOS_CONN_UDP      1
 #define TAOS_CONN_TCPS     2
 #define TAOS_CONN_TCPC     3
 #define TAOS_CONN_HTTPS    4
@@ -39,7 +38,7 @@ extern "C" {
 #define TAOS_ID_REALLOCATE 2
 
 #define TAOS_CONN_SOCKET_TYPE_S()  ((strcasecmp(tsSocketType, TAOS_SOCKET_TYPE_NAME_UDP) == 0)? TAOS_CONN_UDPS:TAOS_CONN_TCPS)
-#define TAOS_CONN_SOCKET_TYPE_C()  ((strcasecmp(tsSocketType, TAOS_SOCKET_TYPE_NAME_UDP) == 0)? TAOS_CONN_UDP:TAOS_CONN_TCPC)
+#define TAOS_CONN_SOCKET_TYPE_C()  ((strcasecmp(tsSocketType, TAOS_SOCKET_TYPE_NAME_UDP) == 0)? TAOS_CONN_UDPC:TAOS_CONN_TCPC)
 
 #define taosSendMsgToPeer(x, y, z) taosSendMsgToPeerH(x, y, z, NULL)
 #define taosOpenRpcChann(x, y, z) taosOpenRpcChannWithQ(x,y,z,NULL)
diff --git a/src/os/darwin/src/tdarwin.c b/src/os/darwin/src/tdarwin.c
index 71e8a56466..de37c76edd 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 f78250cb52..6a7225b476 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 04078abb64..fee506256b 100644
--- a/src/rpc/src/ttcpserver.c
+++ b/src/rpc/src/ttcpserver.c
@@ -185,8 +185,9 @@ 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 bac89db7e2..ab26eda348 100644
--- a/src/util/src/tglobalcfg.c
+++ b/src/util/src/tglobalcfg.c
@@ -62,8 +62,8 @@ short tsMgmtShellPort = 6030;   // udp[6030-6034] tcp[6030]
 short tsVnodeShellPort = 6035;  // udp[6035-6039] tcp[6035]
 short tsMgmtVnodePort = 6040;   // udp[6040-6044] tcp[6040]
 short tsVnodeVnodePort = 6045;  // tcp[6045]
-short tsMgmtMgmtPort = 6050;    // sdbPeerPort only udp, numOfVnodes fixed to 1, range udp[6050]
-short tsMgmtSyncPort = 6050;    // sdbSyncPort only tcp, range tcp[6050]
+short tsMgmtMgmtPort = 6050;    // udp, numOfVnodes fixed to 1, range udp[6050]
+short tsMgmtSyncPort = 6050;    // tcp, range tcp[6050]
 
 int tsStatusInterval = 1;         // second
 int tsShellActivityTimer = 3;     // second
@@ -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 8de70f8a01..9a2dafe377 100644
--- a/src/util/src/tsocket.c
+++ b/src/util/src/tsocket.c
@@ -269,7 +269,6 @@ 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;
@@ -334,7 +333,6 @@ 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);
 
@@ -430,7 +428,6 @@ 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;
@@ -472,7 +469,6 @@ 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) {