Steve Loughran commented on YARN-1565:

-ignore the yarn config one. like you say: not a new problem. And no, no 
findbugs errors listed.

> Add a way for YARN clients to get critical YARN system properties from the RM
> -----------------------------------------------------------------------------
>                 Key: YARN-1565
>                 URL: https://issues.apache.org/jira/browse/YARN-1565
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: resourcemanager
>    Affects Versions: 2.2.0
>            Reporter: Steve Loughran
>         Attachments: YARN-1565-001.patch, YARN-1565-002.patch, 
> YARN-1565-003.patch
> If you are trying to build up an AM request, you need to know
> # the limits of memory, core &c for the chosen queue
> # the existing YARN classpath
> # the path separator for the target platform (so your classpath comes out 
> right)
> # cluster OS: in case you need some OS-specific changes
> The classpath can be in yarn-site.xml, but a remote client may not have that. 
> The site-xml file doesn't list Queue resource limits, cluster OS or the path 
> separator.
> A way to query the RM for these values would make it easier for YARN clients 
> to build up AM submissions with less guesswork and client-side config.

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