diff --git a/src/rpc/src/rpcMain.c b/src/rpc/src/rpcMain.c
index b0a5a0bfc0d2c53aec4187de265c6726494273a0..6a45b10693f1cfcca7ec4552435c0c58069d2cf5 100644
--- a/src/rpc/src/rpcMain.c
+++ b/src/rpc/src/rpcMain.c
@@ -493,7 +493,7 @@ static SRpcConn *rpcOpenConn(SRpcInfo *pRpc, char *peerFqdn, uint16_t peerPort,
   SRpcConn *pConn;
 
   uint32_t peerIp = taosGetIpFromFqdn(peerFqdn);
-  if (peerIp == -1) {
+  if (peerIp == 0xFFFFFFFF) {
     tError("%s, failed to resolve FQDN:%s", pRpc->label, peerFqdn); 
     terrno = TSDB_CODE_RPC_APP_ERROR; 
     return NULL;
diff --git a/src/util/src/tsocket.c b/src/util/src/tsocket.c
index 00c8bba94e21151b9491673ba055d0c7c26b70e3..4ff73807e8a1e41ea38c5be1f17b8be34ed52bb9 100644
--- a/src/util/src/tsocket.c
+++ b/src/util/src/tsocket.c
@@ -44,7 +44,7 @@ uint32_t taosGetIpFromFqdn(const char *fqdn) {
   struct addrinfo hints = {0};
   struct addrinfo *result = NULL;
 
-  getaddrinfo(fqdn, NULL, &hints, &result);
+  int32_t ret = getaddrinfo(fqdn, NULL, &hints, &result);
   if (result) {
     struct sockaddr *sa = result->ai_addr;
     struct sockaddr_in *si = (struct sockaddr_in*)sa;
@@ -53,7 +53,8 @@ uint32_t taosGetIpFromFqdn(const char *fqdn) {
     freeaddrinfo(result);
     return ip;
   } else {
-    return -1;
+    uError("failed get the addr info, code:%d, reason:%s", ret, gai_strerror(ret));
+    return 0xFFFFFFFF;
   }
 }