refactor: get retry epset from sync module only when mnode is not initialized

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

@@ -218,7 +218,6 @@ bool mndIsMnode(SMnode *pMnode, int32_t dnodeId) {
 }
 
 void mndGetMnodeEpSet(SMnode *pMnode, SEpSet *pEpSet) {
-#if 0  
   SSdb   *pSdb = pMnode->pSdb;
   int32_t totalMnodes = sdbGetSize(pSdb, SDB_MNODE);
   void   *pIter = NULL;
@@ -238,9 +237,10 @@ void mndGetMnodeEpSet(SMnode *pMnode, SEpSet *pEpSet) {
     addEpIntoEpSet(pEpSet, pObj->pDnode->fqdn, pObj->pDnode->port);
     sdbRelease(pSdb, pObj);
   }
-#else
-  syncGetRetryEpSet(pMnode->syncMgmt.sync, pEpSet);
-#endif
+
+  if (pEpSet->numOfEps == 0) {
+    syncGetRetryEpSet(pMnode->syncMgmt.sync, pEpSet);
+  }
 }
 
 static int32_t mndSetCreateMnodeRedoLogs(SMnode *pMnode, STrans *pTrans, SMnodeObj *pObj) {