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https://issues.apache.org/jira/browse/MAPREDUCE-3641?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13186479#comment-13186479
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Hadoop QA commented on MAPREDUCE-3641:
--------------------------------------
+1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12510620/MAPREDUCE-3641.patch
against trunk revision .
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 6 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 eclipse:eclipse. The patch built with eclipse:eclipse.
+1 findbugs. The patch does not introduce any new Findbugs (version 1.3.9)
warnings.
+1 release audit. The applied patch does not increase the total number of
release audit warnings.
+1 core tests. The patch passed unit tests in .
+1 contrib tests. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/1612//testReport/
Console output:
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/1612//console
This message is automatically generated.
> CapacityScheduler should be more conservative assigning off-switch requests
> ---------------------------------------------------------------------------
>
> Key: MAPREDUCE-3641
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3641
> Project: Hadoop Map/Reduce
> Issue Type: Sub-task
> Components: mrv2, scheduler
> Affects Versions: 0.23.0
> Reporter: Arun C Murthy
> Assignee: Arun C Murthy
> Priority: Blocker
> Attachments: MAPREDUCE-3641.patch, MAPREDUCE-3641.patch,
> MAPREDUCE-3641.patch, MAPREDUCE-3641.patch
>
>
> In hadoop-1, the CS is very conservative handing out off-switch assignments,
> we need to do the same in YARN.
> We noticed performance regressions due to this, particularly for reduces.
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