change a log level

src/mnode/src/mnodeProfile.c

@@ -115,7 +115,7 @@ SConnObj *mnodeAccquireConn(int32_t connId, char *user, uint32_t ip, uint16_t po
   uint64_t expireTime = CONN_KEEP_TIME * 1000 + (uint64_t)taosGetTimestampMs();
   SConnObj *pConn = taosCacheUpdateExpireTimeByName(tsMnodeConnCache, &connId, sizeof(int32_t), expireTime);
   if (pConn == NULL) {
-    mError("connId:%d, is already destroyed, user:%s ip:%s:%u", connId, user, taosIpStr(ip), port);
+    mDebug("connId:%d, is already destroyed, user:%s ip:%s:%u", connId, user, taosIpStr(ip), port);
     return NULL;
   }