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https://issues.apache.org/jira/browse/HBASE-6537?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lars Hofhansl updated HBASE-6537:
---------------------------------
Resolution: Fixed
Status: Resolved (was: Patch Available)
Committed to 0.94.
Thank you for the patch Zhou.
> Race between balancer and disable table can lead to inconsistent cluster
> ------------------------------------------------------------------------
>
> Key: HBASE-6537
> URL: https://issues.apache.org/jira/browse/HBASE-6537
> Project: HBase
> Issue Type: Bug
> Components: master
> Affects Versions: 0.94.0
> Reporter: Zhou wenjian
> Assignee: Zhou wenjian
> Fix For: 0.94.2
>
> Attachments: HBASE-6537-94-v2.patch, HBASE-6537-trunk.patch,
> HBASE-6537-trunk-v2.patch
>
>
> Appear in 94. trunk is ok for the issue
> Balancer will collect the regionplans to move(unassign and then assign).
> before unassign, disable table appears,
> after close the region in rs, master will delete the znode, romove region
> from RIT,
> and then clean the region from the online regions.
> During romoving region from RIT and cleaning out the region from the online
> regions.
> balancer begins to unassign, it will get a NotServingRegionException and if
> the table is disabling, it will deal with the state in master and delete the
> znode . However the table is disabled now, so the RIT and znode will remain.
> TimeoutMonitor draws a blank on it.
> It will hold back enabling the table or balancer unless restart
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