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https://issues.apache.org/jira/browse/YARN-2884?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14643470#comment-14643470
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Hadoop QA commented on YARN-2884:
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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/12747414/YARN-2884-V2.patch |
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / 3e6fce9 |
| Console output | 
https://builds.apache.org/job/PreCommit-YARN-Build/8684/console |


This message was automatically generated.

> Proxying all AM-RM communications
> ---------------------------------
>
>                 Key: YARN-2884
>                 URL: https://issues.apache.org/jira/browse/YARN-2884
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: nodemanager, resourcemanager
>            Reporter: Carlo Curino
>            Assignee: Kishore Chaliparambil
>         Attachments: YARN-2884-V1.patch, YARN-2884-V2.patch
>
>
> We introduce the notion of an RMProxy, running on each node (or once per 
> rack). Upon start the AM is forced (via tokens and configuration) to direct 
> all its requests to a new services running on the NM that provide a proxy to 
> the central RM. 
> This give us a place to:
> 1) perform distributed scheduling decisions
> 2) throttling mis-behaving AMs
> 3) mask the access to a federation of RMs



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