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From "Jean-Daniel Cryans (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (HBASE-2927) BaseScanner gets stale HRegionInfo in some race cases
Date Wed, 18 Aug 2010 19:45:17 GMT

     [ https://issues.apache.org/jira/browse/HBASE-2927?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Jean-Daniel Cryans resolved HBASE-2927.

    Hadoop Flags: [Reviewed]
      Resolution: Fixed

Committed to branch and the part about the HRI to trunk.

> BaseScanner gets stale HRegionInfo in some race cases
> -----------------------------------------------------
>                 Key: HBASE-2927
>                 URL: https://issues.apache.org/jira/browse/HBASE-2927
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.20.6, 0.89.20100621
>            Reporter: Jean-Daniel Cryans
>            Assignee: Jean-Daniel Cryans
>            Priority: Critical
>             Fix For: 0.20.7, 0.90.0
>         Attachments: HBASE-2927.patch
> This issue is a branch of HBASE-2812, as it is a specific fix for disabling tables in
some situations. The issue is that the BaseScanner can get a stale HRI by the time it checks
if the region is OFFLINE, and even in trunk where we do a double checkAssigned there is no
way for us to tell if the region was offlined in the mean time.

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