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https://issues.apache.org/jira/browse/MAPREDUCE-1059?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12792802#action_12792802
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Hadoop QA commented on MAPREDUCE-1059:
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-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12428394/MAPREDUCE-1059.3.patch
against trunk revision 892411.
+1 @author. The patch does not contain any @author tags.
-1 tests included. The patch doesn't appear to include any new or modified
tests.
Please justify why no new tests are needed for this
patch.
Also please list what manual steps were performed to
verify this patch.
+1 javadoc. The javadoc tool did not generate any warning messages.
+1 javac. The applied patch does not increase the total number of javac
compiler warnings.
+1 findbugs. The patch does not introduce any new Findbugs warnings.
+1 release audit. The applied patch does not increase the total number of
release audit warnings.
+1 core tests. The patch passed core unit tests.
-1 contrib tests. The patch failed contrib unit tests.
Test results:
http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h3.grid.sp2.yahoo.net/222/testReport/
Findbugs warnings:
http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h3.grid.sp2.yahoo.net/222/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results:
http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h3.grid.sp2.yahoo.net/222/artifact/trunk/build/test/checkstyle-errors.html
Console output:
http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h3.grid.sp2.yahoo.net/222/console
This message is automatically generated.
> distcp can generate uneven map task assignments
> -----------------------------------------------
>
> Key: MAPREDUCE-1059
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1059
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: distcp
> Reporter: Aaron Kimball
> Assignee: Aaron Kimball
> Attachments: MAPREDUCE-1059.2.patch, MAPREDUCE-1059.3.patch,
> MAPREDUCE-1059.patch
>
>
> distcp writes out a SequenceFile containing the source files to transfer, and
> their sizes. Map tasks are created over spans of this file, representing
> files which each mapper should transfer. In practice, some transfer loads
> yield many empty map tasks and a few tasks perform the bulk of the work.
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