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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HBASE-6725) Check and Put can fail when using locks
Date Wed, 16 Nov 2016 22:16:58 GMT

     [ https://issues.apache.org/jira/browse/HBASE-6725?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

stack resolved HBASE-6725.
    Resolution: Cannot Reproduce

Resolving because against 0.90 hbase. Also locking is different now in that we don't take
it across whole row so should not conflict w/ checkAndPut.

> 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 ThiƩbaud
>         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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