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From "Lars Hofhansl (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-8355) BaseRegionObserver#preCompactScannerOpen returns null
Date Sat, 04 May 2013 05:30:17 GMT

    [ https://issues.apache.org/jira/browse/HBASE-8355?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13649018#comment-13649018
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Lars Hofhansl commented on HBASE-8355:
--------------------------------------

Hmm... Yes. So at least I got that part of my original patch right. :)

I seem to recall that I had a good reason for return null in BaseRegionObserver, but since
I can't remember why now and there appears to be no good reason for for it I agree with Jesse.

                
> BaseRegionObserver#preCompactScannerOpen 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: Andrew Purtell
>         Attachments: 8355-0.94.patch, 8355.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.

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