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https://issues.apache.org/jira/browse/HADOOP-3297?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12594506#action_12594506
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Hadoop QA commented on HADOOP-3297:
-----------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12381308/3297.patch
against trunk revision 653638.
+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 tests are needed for 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 appears to introduce 2 new Findbugs warnings.
+1 release audit. The applied patch does not increase the total number of
release audit warnings.
-1 core tests. The patch failed core unit tests.
+1 contrib tests. The patch passed contrib unit tests.
Test results:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2406/testReport/
Findbugs warnings:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2406/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2406/artifact/trunk/build/test/checkstyle-errors.html
Console output:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2406/console
This message is automatically generated.
> The way in which ReduceTask/TaskTracker gets completion events during shuffle
> can be improved
> ---------------------------------------------------------------------------------------------
>
> Key: HADOOP-3297
> URL: https://issues.apache.org/jira/browse/HADOOP-3297
> Project: Hadoop Core
> Issue Type: Improvement
> Components: mapred
> Reporter: Devaraj Das
> Assignee: Devaraj Das
> Fix For: 0.18.0
>
> Attachments: 3297.patch
>
>
> Certain things like poll frequency, number of events fetched in one go, etc.
> can probably be improved to improve the shuffle performance. This would
> affect the task-->tasktracker and the tasktracker-->jobtracker shuffle
> related RPCs.
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