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https://issues.apache.org/jira/browse/YARN-736?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13705855#comment-13705855
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Hudson commented on YARN-736:
-----------------------------
Integrated in Hadoop-Mapreduce-trunk #1484 (See
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1484/])
updating CHANGES.txt after committing
MAPREDUCE-5333,HADOOP-9661,HADOOP-9355,HADOOP-9673,HADOOP-9414,HADOOP-9416,HDFS-4797,YARN-866,YARN-736,YARN-883
to 2.1-beta branch (Revision 1502075)
Result = SUCCESS
tucu : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1502075
Files :
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt
> Add a multi-resource fair sharing metric
> ----------------------------------------
>
> Key: YARN-736
> URL: https://issues.apache.org/jira/browse/YARN-736
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: scheduler
> Affects Versions: 2.0.4-alpha
> Reporter: Sandy Ryza
> Assignee: Sandy Ryza
> Fix For: 2.1.0-beta
>
> Attachments: YARN-736-1.patch, YARN-736-2.patch, YARN-736-3.patch,
> YARN-736-4.patch, YARN-736.patch
>
>
> Currently, at a regular interval, the fair scheduler computes a fair memory
> share for each queue and application inside it. This fair share is not used
> for scheduling decisions, but is displayed in the web UI, exposed as a
> metric, and used for preemption decisions.
> With DRF and multi-resource scheduling, assigning a memory share as the fair
> share metric to every queue no longer makes sense. It's not obvious what the
> replacement should be, but probably something like fractional fairness within
> a queue, or distance from an ideal cluster state.
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