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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-1565) Add a way for YARN clients to get critical YARN system properties from the RM
Date Mon, 06 Jan 2014 15:28:50 GMT
Steve Loughran created YARN-1565:
------------------------------------

             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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