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From "Jim Brennan (Jira)" <j...@apache.org>
Subject [jira] [Created] (YARN-10664) Allow parameter expansion in NM_ADMIN_USER_ENV
Date Tue, 02 Mar 2021 15:32:00 GMT
Jim Brennan created YARN-10664:

             Summary: Allow parameter expansion in NM_ADMIN_USER_ENV
                 Key: YARN-10664
                 URL: https://issues.apache.org/jira/browse/YARN-10664
             Project: Hadoop YARN
          Issue Type: Improvement
          Components: yarn
    Affects Versions: 2.10.1, 3.4.0
            Reporter: Jim Brennan
            Assignee: Jim Brennan

Currently, {{YarnConfiguration.NM_ADMIN_USER_ENV}} does not do parameter expansion.  That
is, you cannot specify an environment variable such as {code}{{JAVA_HOME}}{code} and have
it be expanded to {{$JAVA_HOME}} inside the container.

We have a need for this in specifying different java gc options for java processing running
inside yarn containers based on which version of java is being used.

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