Steve Loughran created YARN-1565:
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             Summary: 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


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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