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From "Lars Hofhansl (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-10844) Coprocessor failure during batchmutation leaves the memstore datastructs in an inconsistent state
Date Tue, 15 Apr 2014 07:11:18 GMT

    [ https://issues.apache.org/jira/browse/HBASE-10844?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13969285#comment-13969285
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Lars Hofhansl commented on HBASE-10844:
---------------------------------------

Oh, I totally agree. I was just answering Ram's hypothetical question :)
A _post_ hook is a post hook, it should not undo anything.


> Coprocessor failure during batchmutation leaves the memstore datastructs in an inconsistent
state
> -------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-10844
>                 URL: https://issues.apache.org/jira/browse/HBASE-10844
>             Project: HBase
>          Issue Type: Bug
>          Components: regionserver
>            Reporter: Devaraj Das
>            Assignee: Devaraj Das
>             Fix For: 0.99.0, 0.94.19, 0.98.2, 0.96.3
>
>         Attachments: 10844-1.txt
>
>
> Observed this in the testing with Phoenix. The test in Phoenix - MutableIndexFailureIT
deliberately fails the batchmutation call via the installed coprocessor. But the update is
not rolled back. That leaves the memstore inconsistent. In particular, I observed that getFlushableSize
is updated before the coprocessor was called but the update is not rolled back. When the region
is being closed at some later point, the assert introduced in HBASE-10514 in the HRegion.doClose()
causes the RegionServer to shutdown abnormally.



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