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https://issues.apache.org/jira/browse/PIG-480?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12786465#action_12786465
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Hadoop QA commented on PIG-480:
-------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12426989/PIG_480.patch
against trunk revision 887401.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 3 new or modified tests.
+1 javadoc. The javadoc tool did not generate any warning messages.
-1 javac. The applied patch generated 230 javac compiler warnings (more
than the trunk's current 213 warnings).
+1 findbugs. The patch does not introduce any new Findbugs warnings.
-1 release audit. The applied patch generated 397 release audit warnings
(more than the trunk's current 396 warnings).
+1 core tests. The patch passed core unit tests.
+1 contrib tests. The patch passed contrib unit tests.
Test results:
http://hudson.zones.apache.org/hudson/job/Pig-Patch-h8.grid.sp2.yahoo.net/97/testReport/
Release audit warnings:
http://hudson.zones.apache.org/hudson/job/Pig-Patch-h8.grid.sp2.yahoo.net/97/artifact/trunk/patchprocess/releaseAuditDiffWarnings.txt
Findbugs warnings:
http://hudson.zones.apache.org/hudson/job/Pig-Patch-h8.grid.sp2.yahoo.net/97/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output:
http://hudson.zones.apache.org/hudson/job/Pig-Patch-h8.grid.sp2.yahoo.net/97/console
This message is automatically generated.
> PERFORMANCE: Use identity mapper in a chain of M-R jobs
> -------------------------------------------------------
>
> Key: PIG-480
> URL: https://issues.apache.org/jira/browse/PIG-480
> Project: Pig
> Issue Type: Improvement
> Affects Versions: 0.2.0
> Reporter: Olga Natkovich
> Assignee: Ying He
> Attachments: PIG_480.patch, PIG_480.patch
>
>
> For jobs with two or more MR jobs, use identity mapper wherever possible in
> second and subsequent MR jobs. Identity mapper is about 50% than pig empty
> map job because it doesn't parse the data.
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