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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7805) Scan of same region processed serially if table has region observer coprocessor
Date Sun, 10 Feb 2013 15:27:12 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7805?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13575448#comment-13575448
] 

Ted Yu commented on HBASE-7805:
-------------------------------

I got the following compilation error when putting the 2 attached files in trunk or 0.94:

[ERROR] /Users/tyu/94-hbase/src/test/java/org/apache/hadoop/hbase/client/ParallelScanTestCoProc.java:[29,52]
<anonymous org.apache.hadoop.hbase.client.ParallelScanTestCoProc$1> is not abstract
and does not override abstract method nextRaw(java.util.List<org.apache.hadoop.hbase.KeyValue>,int,java.lang.String)
in org.apache.hadoop.hbase.regionserver.RegionScanner
                
> 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
>             Fix For: 0.94.5
>
>         Attachments: 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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