fix/RetrtResolveFQDN_main

source/libs/sync/src/syncUtil.c

@@ -41,9 +41,19 @@ void syncUtilNodeInfo2EpSet(const SNodeInfo* pInfo, SEpSet* pEpSet) {
 }
 
 bool syncUtilNodeInfo2RaftId(const SNodeInfo* pInfo, SyncGroupId vgId, SRaftId* raftId) {
-  uint32_t ipv4 = taosGetIpv4FromFqdn(pInfo->nodeFqdn);
+  uint32_t ipv4 = 0xFFFFFFFF;
+  for(int i = 0; i < 100; i++){
+    ipv4 = taosGetIpv4FromFqdn(pInfo->nodeFqdn);
+    if (ipv4 == 0xFFFFFFFF || ipv4 == 1) {
+      sError("failed to resolve ipv4 addr, fqdn:%s", pInfo->nodeFqdn);
+      taosSsleep(1);
+    }
+    else{
+      break;
+    }
+  }
+  
   if (ipv4 == 0xFFFFFFFF || ipv4 == 1) {
-    sError("failed to resolve ipv4 addr, fqdn:%s", pInfo->nodeFqdn);
     terrno = TSDB_CODE_TSC_INVALID_FQDN;
     return false;
   }