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https://issues.apache.org/jira/browse/MAPREDUCE-5403?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13713958#comment-13713958
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Sandy Ryza commented on MAPREDUCE-5403:
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MR uses it as well, adding both yarn.application.classpath and
mapreduce.application.classpath to its container classpaths. The weird thing
about it is that it's a client config, and only used outside of YARN. YARN
configs should not be client configs. If we want YARN expose where its jars
are, we should expose a YARN_APPLICATION_CLASSPATH environment variable that
clients can add to their classpaths.
> Get rid of yarn.application.classpath
> -------------------------------------
>
> Key: MAPREDUCE-5403
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5403
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: client
> Affects Versions: 2.0.5-alpha
> Reporter: Sandy Ryza
> Assignee: Sandy Ryza
>
> yarn.application.classpath is a confusing property because it is used by
> MapReduce and not YARN, and MapReduce already has
> mapreduce.application.classpath, which provides the same functionality.
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