[ https://issues.apache.org/jira/browse/YARN-2395?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14115797#comment-14115797 ] 

Hadoop QA commented on YARN-2395:
---------------------------------

{color:green}+1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12665397/YARN-2395-4.patch
  against trunk revision b1dce2a.

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 2 new or modified test files.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of javac compiler warnings.

    {color:green}+1 javadoc{color}.  There were no new javadoc warning messages.

    {color:green}+1 eclipse:eclipse{color}.  The patch built with eclipse:eclipse.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version 2.0.3) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number of release audit warnings.

    {color:green}+1 core tests{color}.  The patch passed unit tests in hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager.

    {color:green}+1 contrib tests{color}.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-YARN-Build/4774//testReport/
Console output: https://builds.apache.org/job/PreCommit-YARN-Build/4774//console

This message is automatically generated.

> FairScheduler: Preemption timeout should be configurable per queue
> ------------------------------------------------------------------
>
>                 Key: YARN-2395
>                 URL: https://issues.apache.org/jira/browse/YARN-2395
>             Project: Hadoop YARN
>          Issue Type: New Feature
>          Components: fairscheduler
>            Reporter: Ashwin Shankar
>            Assignee: Wei Yan
>         Attachments: YARN-2395-1.patch, YARN-2395-2.patch, YARN-2395-3.patch, YARN-2395-3.patch, YARN-2395-4.patch
>
>
> Currently in fair scheduler, the preemption logic considers fair share starvation only at leaf queue level. This jira is created to implement it at the parent queue as well.
> It involves :
> 1. Making "check for fair share starvation" and "amount of resource to preempt"  recursive such that they traverse the queue hierarchy from root to leaf.
> 2. Currently fairSharePreemptionTimeout is a global config. We could make it configurable on a per queue basis,so that we can specify different timeouts for parent queues.



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