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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-8355) BaseRegionObserver#pre(Compact|Flush|Store)ScannerOpen returns null
Date Tue, 07 May 2013 01:35:16 GMT

    [ https://issues.apache.org/jira/browse/HBASE-8355?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13650352#comment-13650352
] 

Andrew Purtell commented on HBASE-8355:
---------------------------------------

+1 on patch, +1 on backports, +1 on commit, thanks Jesse.
                
> BaseRegionObserver#pre(Compact|Flush|Store)ScannerOpen returns null
> -------------------------------------------------------------------
>
>                 Key: HBASE-8355
>                 URL: https://issues.apache.org/jira/browse/HBASE-8355
>             Project: HBase
>          Issue Type: Bug
>          Components: Coprocessors
>    Affects Versions: 0.98.0, 0.94.8, 0.95.1
>            Reporter: Andrew Purtell
>            Assignee: Jesse Yates
>         Attachments: 8355-0.94.patch, 8355.patch, hbase-8355-trunk-v0.patch
>
>
> As pointed out in https://github.com/forcedotcom/phoenix/pull/131, BaseRegionObserver#preCompactScannerOpen
returns null by default, which hoses any coprocessors down the line, making override of this
method mandatory. The fix is trivial, patch coming momentarily.
> Update:
> This same behavior is present in the Flush and Store versions of the same method - this
should all be moved to the proposed 'return passed scanner' default behavior.

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