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https://issues.apache.org/jira/browse/YARN-3434?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14539742#comment-14539742
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Hudson commented on YARN-3434:
------------------------------

FAILURE: Integrated in Hadoop-Yarn-trunk-Java8 #194 (See 
[https://builds.apache.org/job/Hadoop-Yarn-trunk-Java8/194/])
Moved YARN-3434. (Interaction between reservations and userlimit can result in 
significant ULF violation.) From 2.8.0 to 2.7.1 (wangda: rev 
1952f88889395870e7b631d43418e075e774b9d2)
* hadoop-yarn-project/CHANGES.txt


> Interaction between reservations and userlimit can result in significant ULF 
> violation
> --------------------------------------------------------------------------------------
>
>                 Key: YARN-3434
>                 URL: https://issues.apache.org/jira/browse/YARN-3434
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: capacityscheduler
>    Affects Versions: 2.6.0
>            Reporter: Thomas Graves
>            Assignee: Thomas Graves
>             Fix For: 2.8.0, 2.7.1
>
>         Attachments: YARN-3434-branch2.7.patch, YARN-3434.patch, 
> YARN-3434.patch, YARN-3434.patch, YARN-3434.patch, YARN-3434.patch, 
> YARN-3434.patch, YARN-3434.patch
>
>
> ULF was set to 1.0
> User was able to consume 1.4X queue capacity.
> It looks like when this application launched, it reserved about 1000 
> containers, each 8G each, within about 5 seconds. I think this allowed the 
> logic in assignToUser() to allow the userlimit to be surpassed.



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