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https://issues.apache.org/jira/browse/HADOOP-4688?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12654286#action_12654286
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Hadoop QA commented on HADOOP-4688:
-----------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12395029/4688-0.patch
against trunk revision 723918.
+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 does not increase the total number of javac
compiler warnings.
+1 findbugs. The patch does not introduce any new Findbugs warnings.
+1 Eclipse classpath. The patch retains Eclipse classpath integrity.
-1 core tests. The patch failed core unit tests.
-1 contrib tests. The patch failed contrib unit tests.
Test results:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/3682/testReport/
Findbugs warnings:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/3682/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/3682/artifact/trunk/build/test/checkstyle-errors.html
Console output:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/3682/console
This message is automatically generated.
> multiple spills/reducers test case for mergeParts() needed
> ----------------------------------------------------------
>
> Key: HADOOP-4688
> URL: https://issues.apache.org/jira/browse/HADOOP-4688
> Project: Hadoop Core
> Issue Type: Test
> Components: mapred
> Affects Versions: 0.19.1
> Reporter: Yuri Pradkin
> Assignee: Chris Douglas
> Fix For: 0.20.0
>
> Attachments: 4688-0.patch
>
>
> The first patch version (incorrect) for
> http://issues.apache.org/jira/browse/HADOOP-4614 exposed a problem that
> existing tests do not exercise some code paths of
> MapOutputBuffer::mergeParts(). In particular, we need a test that would
> validate output when numSpills >1 and partitions >1.
> This might be a test that has more than 1 reducer and forces multiple first
> level (map) spills by setting *io.sort.mb* (and possibly
> *io.sort.spill.percent*) to small values.
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