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https://issues.apache.org/jira/browse/HADOOP-4789?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12656378#action_12656378
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Hadoop QA commented on HADOOP-4789:
-----------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12395464/hadoop-4789-v1.patch
against trunk revision 726129.
+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 passed contrib unit tests.
Test results:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/3742/testReport/
Findbugs warnings:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/3742/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/3742/artifact/trunk/build/test/checkstyle-errors.html
Console output:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/3742/console
This message is automatically generated.
> Change fair scheduler to share between pools by default, not between invidual
> jobs
> ----------------------------------------------------------------------------------
>
> Key: HADOOP-4789
> URL: https://issues.apache.org/jira/browse/HADOOP-4789
> Project: Hadoop Core
> Issue Type: Improvement
> Components: contrib/fair-share
> Reporter: Matei Zaharia
> Assignee: Matei Zaharia
> Priority: Minor
> Attachments: hadoop-4789-v1.patch
>
>
> The fair scheduler currently treats jobs as equal entities in sharing by
> default, so that a user who submits 2 jobs gets 2x the share of a user who
> submits only 1 job. We found that it makes more sense to support equal shares
> between individual pools instead, and have one pool per user, because users
> can otherwise game the system by submitting multiple small jobs. This patch
> will set the scheduler to share between pools by default and set the default
> pool assignment process to one pool per user. it will also be possible to
> give weights to pools so that some users/groups/applications get a larger
> share of the cluster if they really do need to run more jobs.
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