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https://issues.apache.org/jira/browse/HBASE-12005?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14140774#comment-14140774
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Jimmy Xiang commented on HBASE-12005:
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Sure, will add a helper method to make the checking easy to understand.
bq. If either is null in below, it is a fatal condition?
It is not. If the master restarts, these region states are lost since they are
not persisted before PONR.
bq. yet you test them individually?
We can check them together.
> Split/merge fails if master restarts before PONR
> ------------------------------------------------
>
> Key: HBASE-12005
> URL: https://issues.apache.org/jira/browse/HBASE-12005
> Project: HBase
> Issue Type: Bug
> Affects Versions: 2.0.0
> Reporter: Jimmy Xiang
> Assignee: Jimmy Xiang
> Attachments: hbase-12005.patch, hbase-12005_v1.1.patch
>
>
> This applies to RPC based assignment. The root cause is that we don't persist
> the state of the new region(s). If we do persist it, we need to clean it up
> if the split/merge fails.
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