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From "ramkrishna.s.vasudevan (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4727) Don't unconditionally delete UNASSIGNED ZNode for a region.
Date Fri, 04 Nov 2011 08:23:00 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4727?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13143823#comment-13143823

ramkrishna.s.vasudevan commented on HBASE-4727:

Could you pls take a look at HBASE-4540.  I think that solves your problem.. If am wrong you
can let me know.
> Don't unconditionally delete UNASSIGNED ZNode for a region.
> -----------------------------------------------------------
>                 Key: HBASE-4727
>                 URL: https://issues.apache.org/jira/browse/HBASE-4727
>             Project: HBase
>          Issue Type: Bug
>          Components: master
>    Affects Versions: 0.89.20100924
>            Reporter: Madhuwanti Vaidya
>            Assignee: Madhuwanti Vaidya
>            Priority: Minor
> Unconditionally deleting an UNASSIGNED ZNode when master processes RS2ZK_REGION_OPENED
(from the toDo queue) for a region has caused multiply assigned regions or unassigned regions.
One proposed fix is to check whether the ZNode is actually in the state RS2ZK_REGION_OPENED
before deleting it. Another fix is to not delete the ZNode at all.

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