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https://issues.apache.org/jira/browse/YARN-3489?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14546691#comment-14546691
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Hadoop QA commented on YARN-3489:
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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/12733319/YARN-3489-branch-2.7.03.patch
 |
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / b0ad644 |
| Console output | 
https://builds.apache.org/job/PreCommit-YARN-Build/7960/console |


This message was automatically generated.

> RMServerUtils.validateResourceRequests should only obtain queue info once
> -------------------------------------------------------------------------
>
>                 Key: YARN-3489
>                 URL: https://issues.apache.org/jira/browse/YARN-3489
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: resourcemanager
>    Affects Versions: 2.6.0
>            Reporter: Jason Lowe
>            Assignee: Varun Saxena
>              Labels: BB2015-05-RFC
>         Attachments: YARN-3489-branch-2.7.02.patch, 
> YARN-3489-branch-2.7.03.patch, YARN-3489-branch-2.7.patch, 
> YARN-3489.01.patch, YARN-3489.02.patch, YARN-3489.03.patch
>
>
> Since the label support was added we now get the queue info for each request 
> being validated in SchedulerUtils.validateResourceRequest.  If 
> validateResourceRequests needs to validate a lot of requests at a time (e.g.: 
> large cluster with lots of varied locality in the requests) then it will get 
> the queue info for each request.  Since we build the queue info this 
> generates a lot of unnecessary garbage, as the queue isn't changing between 
> requests.  We should grab the queue info once and pass it down rather than 
> building it again for each request.



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