Pradeep Subrahmanion created YARN-4275:

             Summary: Rest API to expose YARN CLASSPATH and other useful system 
                 Key: YARN-4275
             Project: Hadoop YARN
          Issue Type: Improvement
          Components: api
    Affects Versions: 2.6.0, 2.5.0
            Reporter: Pradeep Subrahmanion

Currently to build AM request, the application client need to know about the 
YARN CLASSPATH. Application client has no way to fetch the default CLASSPATH of 
YARN or yarn.application.classpath property in yarn-site.xml through REST API.

Introduce a new REST API to fetch yarn CLASSPATH and other system properties 
that may be useful for those who implement REST client. 

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