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From "Zhou wenjian (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-6537) Balancer compete with disable table will lead to cluster inconsistent
Date Thu, 09 Aug 2012 09:25:19 GMT

     [ https://issues.apache.org/jira/browse/HBASE-6537?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Zhou wenjian updated HBASE-6537:
--------------------------------

    Attachment: HBASE-6537-94.patch
    
> Balancer compete with disable table will lead to cluster inconsistent 
> ----------------------------------------------------------------------
>
>                 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
>             Fix For: 0.94.1
>
>         Attachments: HBASE-6537-94.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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