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https://issues.apache.org/jira/browse/HBASE-7805?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13575573#comment-13575573
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Ted Yu commented on HBASE-7805:
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@James:
Can you confirm that the labels for 0.94.2 statistics are right ?
I thought performance with coprocessors should be slower.
Thanks
> Scan of same region processed serially if table has region observer
> coprocessor
> -------------------------------------------------------------------------------
>
> Key: HBASE-7805
> URL: https://issues.apache.org/jira/browse/HBASE-7805
> Project: HBase
> Issue Type: Bug
> Components: Coprocessors, Scanners
> Affects Versions: 0.94.4
> Reporter: James Taylor
> Priority: Minor
> Fix For: 0.96.0, 0.94.6
>
> Attachments: 7805-0.94.patch, 7805-trunk.txt, 7805-trunk-v2.txt,
> ParallelScanTestCoProc.java, ParallelScanTest.java
>
>
> If multiple scans to different parts of the same region are executed in
> parallel, they are processed serially if the table has a region observer
> coprocessor.
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