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https://issues.apache.org/jira/browse/HBASE-25216?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17225968#comment-17225968
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Duo Zhang commented on HBASE-25216:
-----------------------------------
Pushed to master and branch-2. Let's wait for a while to see if it works for
branch-2.
> The client zk syncer should deal with meta replica count change
> ---------------------------------------------------------------
>
> Key: HBASE-25216
> URL: https://issues.apache.org/jira/browse/HBASE-25216
> Project: HBase
> Issue Type: Bug
> Components: master, Zookeeper
> Reporter: Duo Zhang
> Assignee: Duo Zhang
> Priority: Major
> Fix For: 3.0.0-alpha-1, 2.4.0
>
>
> The failure of TestSeparateClientZKCluster is because that, we start the zk
> syncer before we initialize meta region, and after HBASE-25099, we will scan
> zookeeper to get the meta znodes directly instead of checking the config, so
> we will get an empty list since there is no meta location on zk yet, thus we
> will sync nothing.
> But changing the order can not solve everything, as after HBASE-25099, we can
> change the meta replica count without restartinig master, so the zk syncer
> should have the ability to know the change and start to sync the location for
> the new replicas.
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