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Posted to yarn-dev@hadoop.apache.org by "Jason Lowe (JIRA)" <ji...@apache.org> on 2014/07/29 15:47:38 UTC

[jira] [Created] (YARN-2369) Environment variable handling assumes values should be appended

Jason Lowe created YARN-2369:
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             Summary: Environment variable handling assumes values should be appended
                 Key: YARN-2369
                 URL: https://issues.apache.org/jira/browse/YARN-2369
             Project: Hadoop YARN
          Issue Type: Bug
    Affects Versions: 2.2.0
            Reporter: Jason Lowe


When processing environment variables for a container context the code assumes that the value should be appended to any pre-existing value in the environment.  This may be desired behavior for handling path-like environment variables such as PATH, LD_LIBRARY_PATH, CLASSPATH, etc. but it is a non-intuitive and harmful way to handle any variable that does not have path-like semantics.



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