Sandy Ryza created YARN-702:
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Summary: minicluster classpath construction requires user to set
yarn.is.minicluster in the job conf
Key: YARN-702
URL: https://issues.apache.org/jira/browse/YARN-702
Project: Hadoop YARN
Issue Type: Improvement
Components: nodemanager
Affects Versions: 2.0.4-alpha
Reporter: Sandy Ryza
YARN-129 improved classpath construction for miniclusters by, when
yarn.is.minicluster is set, adding the current JVM's classpath to the
ContainerLaunchContext for the MR AM and tasks. An issue with this is that it
requires the user to set yarn.is.minicluster on the mapreduce side in the job
conf, if they are not copying to RM conf into the jobconf.
I think it would be better to bypass the ContainerLaunchContext and instead
have the nodemanager check the property, and if it is true, do the classpath
additions there.
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