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https://issues.apache.org/jira/browse/YARN-80?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13450423#comment-13450423
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Hudson commented on YARN-80:
----------------------------
Integrated in Hadoop-Mapreduce-trunk-Commit #2728 (See
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk-Commit/2728/])
YARN-80. Add support for delaying rack-local containers in
CapacityScheduler. Contributed by Arun C. Murthy. (Revision 1381872)
Result = FAILURE
acmurthy :
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1381872
Files :
* /hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt
*
/hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/CapacitySchedulerConfiguration.java
*
/hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/LeafQueue.java
*
/hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/resources/capacity-scheduler.xml
*
/hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestLeafQueue.java
> Support delay scheduling for node locality in MR2's capacity scheduler
> ----------------------------------------------------------------------
>
> Key: YARN-80
> URL: https://issues.apache.org/jira/browse/YARN-80
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: capacityscheduler
> Reporter: Todd Lipcon
> Assignee: Arun C Murthy
> Fix For: 2.1.0-alpha
>
> Attachments: YARN-80.patch, YARN-80.patch
>
>
> The capacity scheduler in MR2 doesn't support delay scheduling for achieving
> node-level locality. So, jobs exhibit poor data locality even if they have
> good rack locality. Especially on clusters where disk throughput is much
> better than network capacity, this hurts overall job performance. We should
> optionally support node-level delay scheduling heuristics similar to what the
> fair scheduler implements in MR1.
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