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From "Nick Dimiduk (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-14442) MultiTableInputFormatBase.getSplits dosenot build split for a scan whose startRow=stopRow=(startRow of a region)
Date Wed, 16 Sep 2015 18:09:45 GMT

    [ https://issues.apache.org/jira/browse/HBASE-14442?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14790833#comment-14790833
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Nick Dimiduk commented on HBASE-14442:
--------------------------------------

Hi Nathan, can you provide a unit test that demonstrates this bug? See https://github.com/apache/hbase/blob/master/hbase-server/src/test/java/org/apache/hadoop/hbase/mapreduce/TestMultiTableInputFormat.java
for existing tests.

> MultiTableInputFormatBase.getSplits dosenot build split for a scan whose startRow=stopRow=(startRow
of a region)
> ----------------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-14442
>                 URL: https://issues.apache.org/jira/browse/HBASE-14442
>             Project: HBase
>          Issue Type: Bug
>          Components: mapreduce
>    Affects Versions: 1.1.2
>            Reporter: Nathan
>            Assignee: Nathan
>   Original Estimate: 0.5h
>  Remaining Estimate: 0.5h
>
> I created a Scan whose startRow and stopRow are the same with a region's startRow, then
I found no map was built. 
> The following is the source code of this condtion:
> (startRow.length == 0 || keys.getSecond()[i].length == 0 ||
>                     Bytes.compareTo(startRow, keys.getSecond()[i]) < 0) &&
>                     (stopRow.length == 0 || Bytes.compareTo(stopRow,
>                             keys.getFirst()[i]) > 0)
> I think  a "=" should be added.



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