support no fqdn for single dnode

include/common/tmsg.h

@@ -369,6 +369,7 @@ typedef struct {
   int32_t  acctId;
   int64_t  clusterId;
   uint32_t connId;
+  int32_t  dnodeNum;
   int8_t   superUser;
   int8_t   connType;
   SEpSet   epSet;

source/client/src/clientMsgHandler.c

@@ -58,7 +58,7 @@ int32_t processConnectRsp(void* param, const SDataBuf* pMsg, int32_t code) {
     return code;
   }
 
-  if (!isEpsetEqual(&pTscObj->pAppInfo->mgmtEp.epSet, &connectRsp.epSet)) {
+  if (connectRsp.dnodeNum > 1 && !isEpsetEqual(&pTscObj->pAppInfo->mgmtEp.epSet, &connectRsp.epSet)) {
     updateEpSet_s(&pTscObj->pAppInfo->mgmtEp, &connectRsp.epSet);
   }
 

source/common/src/tmsg.c

@@ -2751,6 +2751,7 @@ int32_t tSerializeSConnectRsp(void *buf, int32_t bufLen, SConnectRsp *pRsp) {
   if (tEncodeI32(&encoder, pRsp->acctId) < 0) return -1;
   if (tEncodeI64(&encoder, pRsp->clusterId) < 0) return -1;
   if (tEncodeU32(&encoder, pRsp->connId) < 0) return -1;
+  if (tEncodeI32(&encoder, pRsp->dnodeNum) < 0) return -1;
   if (tEncodeI8(&encoder, pRsp->superUser) < 0) return -1;
   if (tEncodeI8(&encoder, pRsp->connType) < 0) return -1;
   if (tEncodeSEpSet(&encoder, &pRsp->epSet) < 0) return -1;
@@ -2770,6 +2771,7 @@ int32_t tDeserializeSConnectRsp(void *buf, int32_t bufLen, SConnectRsp *pRsp) {
   if (tDecodeI32(&decoder, &pRsp->acctId) < 0) return -1;
   if (tDecodeI64(&decoder, &pRsp->clusterId) < 0) return -1;
   if (tDecodeU32(&decoder, &pRsp->connId) < 0) return -1;
+  if (tDecodeI32(&decoder, &pRsp->dnodeNum) < 0) return -1;
   if (tDecodeI8(&decoder, &pRsp->superUser) < 0) return -1;
   if (tDecodeI8(&decoder, &pRsp->connType) < 0) return -1;
   if (tDecodeSEpSet(&decoder, &pRsp->epSet) < 0) return -1;

source/dnode/mnode/impl/src/mndProfile.c

@@ -227,6 +227,7 @@ static int32_t mndProcessConnectReq(SNodeMsg *pReq) {
   connectRsp.clusterId = pMnode->clusterId;
   connectRsp.connId = pConn->id;
   connectRsp.connType = connReq.connType;
+  connectRsp.dnodeNum = mndGetDnodeSize(pMnode);
 
   snprintf(connectRsp.sVersion, sizeof(connectRsp.sVersion), "ver:%s\nbuild:%s\ngitinfo:%s", version, buildinfo,
            gitinfo);