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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3434) Interaction between reservations and userlimit can result in significant ULF violation
Date Mon, 11 May 2015 17:31:01 GMT

    [ https://issues.apache.org/jira/browse/YARN-3434?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14538232#comment-14538232
] 

Hadoop QA commented on YARN-3434:
---------------------------------

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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:red}-1{color} | patch |   0m  0s | The patch command could not apply the patch during
dryrun. |
\\
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|| Subsystem || Report/Notes ||
| Patch URL | http://issues.apache.org/jira/secure/attachment/12731239/YARN-3434-branch2.7.patch
|
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / b9cebfc |
| Console output | https://builds.apache.org/job/PreCommit-YARN-Build/7864/console |


This message was automatically generated.

> 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
>
>         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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