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https://issues.apache.org/jira/browse/HBASE-6725?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Kyle Purtell closed HBASE-6725.
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> Check and Put can fail when using locks
> ---------------------------------------
>
> Key: HBASE-6725
> URL: https://issues.apache.org/jira/browse/HBASE-6725
> Project: HBase
> Issue Type: Bug
> Components: master
> Affects Versions: 0.90.4
> Environment: tested on mac os x
> Reporter: Nicolas Thiébaud
> Priority: Major
> Attachments: CAPwithLocks.zip, TestCase_HBASE_6725.patch
>
>
> When multiple threads race using CAP with and a lock on the same row, several
> instances may be allowed to update the cell with the new value (although the
> expected value is different).
> If all threads race with a wrong expected value and a lock, none will be able
> to update.
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