报错信息：errCode = 2, detailMessage = tablet 1049655 has no queryable replicas. err: Replica on backend 10025 with tag {"location" : "group_load"}, which is not in user's resource tags: [{"location" : "group_read"}]
通过资源组读写分离，20节点写，20BE节点读
发现报错在读节点找不到副本
