Github user sryza commented on the pull request:
https://github.com/apache/spark/pull/3409#issuecomment-64062102
Adding the ability to specify java options for the ExecutorLauncher AM in
yarn-client mode sounds reasonable. I think we should use a config property
name that's more specific - perhaps spark.yarn.am.extraJavaOptions or
spark.yarn.executorLauncher.extraJavaOptions.
One thing we need to decide is how this property interacts with driver java
options in yarn-cluster mode. The simplest would probably be to have the
property only affect the yarn-client AM.
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