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https://issues.apache.org/jira/browse/HBASE-27897?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Peter Somogyi resolved HBASE-27897.
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Resolution: Fixed
Merted the addendum to branch-2.4. Thanks for the review, [~zhangduo]!
> ConnectionImplementation#locateRegionInMeta should pause and retry when
> taking user region lock failed
> ------------------------------------------------------------------------------------------------------
>
> Key: HBASE-27897
> URL: https://issues.apache.org/jira/browse/HBASE-27897
> Project: HBase
> Issue Type: Improvement
> Components: Client
> Affects Versions: 2.4.17, 2.5.4
> Reporter: Xiaolin Ha
> Assignee: Xiaolin Ha
> Priority: Major
> Fix For: 2.6.0, 2.4.18, 2.5.6
>
>
> It just throws exception and skips the pause and retry logic whenÂ
> ConnectionImplementation#takeUserRegionLock fails. In some circumstances, no
> pause and retry by outer logic will make next
> ConnectionImplementation#takeUserRegionLock still fails, since all the
> threads simultaneously grab the lock.
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