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https://issues.apache.org/jira/browse/HBASE-12686?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14247059#comment-14247059
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Vandana Ayyalasomayajula commented on HBASE-12686:
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[~rajeshbabu] Could you elaborate on what you meant by
{quote}
2) Can we just use locking so that we can wait from failure happened instead of
waiting from when split requested?
{quote}
I will add a test in the TestSplitTransactionOnCluster class and reuse
FailingSplitRegionObserver as per your suggestion.
> Failures in split before PONR not clearing the daughter regions from regions
> in transition during rollback
> ----------------------------------------------------------------------------------------------------------
>
> Key: HBASE-12686
> URL: https://issues.apache.org/jira/browse/HBASE-12686
> Project: HBase
> Issue Type: Bug
> Components: Region Assignment
> Affects Versions: 0.98.9
> Reporter: Rajeshbabu Chintaguntla
> Assignee: Vandana Ayyalasomayajula
> Priority: Blocker
> Fix For: 1.0.0, 0.98.9
>
> Attachments: HBASE-12686-98.patch, HBASE-12686-branch-1.patch
>
>
> If there are any split failures then the both daughter regions left in
> SPLITTING_NEW transition even after rollback, which will block balancing to
> happen forever until unless master is restarted.
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