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https://issues.apache.org/jira/browse/HBASE-12005?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14140909#comment-14140909
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stack commented on HBASE-12005:
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bq. We can check them together.
You don't have to. Just add note that could be individually null?
+1 on helper method. Then +1 on patch. Just go for it I'd say Jimmy.
> 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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