[jira] [Resolved] (HBASE-26193) Do not store meta region location as permanent state on zookeeper

["Duo Zhang (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-26193?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Duo Zhang resolved HBASE-26193.
-------------------------------
    Resolution: Fixed

Pushed to master and branch-2.

Thanks [~stack] and [~zyork] for reviewing.

> Do not store meta region location as permanent state on zookeeper
> -----------------------------------------------------------------
>
>                 Key: HBASE-26193
>                 URL: https://issues.apache.org/jira/browse/HBASE-26193
>             Project: HBase
>          Issue Type: Improvement
>          Components: meta, Zookeeper
>            Reporter: Duo Zhang
>            Assignee: Duo Zhang
>            Priority: Major
>             Fix For: 2.5.0, 3.0.0-alpha-2
>
>
> As it breaks one of our design rules
> https://hbase.apache.org/book.html#design.invariants.zk.data
> We used to think hbase should be recovered automatically when all the data on zk (except the replication data) are cleared, but obviously, if you clear the meta region location, the cluster will be in trouble, and need to use operation tools to recover the cluster.
> So here, along with the ConnectionRegistry improvements, we should also consider move the meta region location off zookeeper.



--
This message was sent by Atlassian Jira
(v8.3.4#803005)