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https://issues.apache.org/jira/browse/YARN-4789?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sangjin Lee updated YARN-4789:
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Component/s: client
> Provide helpful exception for non-PATH-like conflict with admin.user.env
> ------------------------------------------------------------------------
>
> Key: YARN-4789
> URL: https://issues.apache.org/jira/browse/YARN-4789
> Project: Hadoop YARN
> Issue Type: Bug
> Components: client
> Affects Versions: 2.7.2
> Reporter: Gera Shegalov
> Assignee: Gera Shegalov
> Labels: oct16-hard
> Attachments: YARN-4789.001.patch
>
>
> Environment variables specified in mapreduce.admin.user.env are supposed to
> be paths (class, shell, library) and they can be merged with the
> user-provided values. However, it's also possible that the cluster admins
> specify some non-PATH-like variable such as JAVA_HOME. In this case if there
> is the same variable provided by the user, we'll get a concatenation that
> does not make sense and is difficult to debug.
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