英文:
AntDB cluster service is unavailable, how to solve it?
问题
我是AntDB的新用户，在使用它时遇到了一些问题，我不知道该怎么办。AntDB集群服务不可用后，我应该怎么做？非常感谢。
我希望得到一些具体的建议。期待您的回复。
英文:
I'm a new user of antdb and I'm having trouble solving some problems while using it.
What should I do after AntDB cluster service is unavailable? Thanks a lot.
I want some specific suggestions. Looking forward to your reply.
答案1
得分: 0
以下是翻译好的部分：
检查来自管理节点的集群状态。如果在相同的 RAFT 切片下幸存的主机数量（mdb_config.mdb_machines_info.sharding_id>0）≤ 50％，则由于无法正确投票选举主节点，整个 RAFT 切片内的数据都无法进行读写操作。如果要访问的数据恰好位于此数据切片上，那么集群服务将不可用。只需将切片内的服务数量恢复到超过一半，问题就会自动解决。
希望对您有所帮助。
英文:
here is the solution:
Check the cluster status from the management node. If the number of hosts surviving under the same RAFT slice (mdb_config.mdb_machines_info.sharding_id>0) is ≤ 50%, the data within the entire RAFT slice is not read/writeable due to the inability to properly vote for a master, and if the data to be accessed happens to be on this data slice , it is the described case that cluster service is not available. Just restore the number of services within the slice to more than half, it can be automatically fixed.
Hope it helps.
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