Github user nishkamravi2 commented on the pull request:
https://github.com/apache/spark/pull/731#issuecomment-49969218
Correct me if I'm wrong, but I think this PR intends to facilitate that by
allowing multiple executor JVM's to run on the same node (per worker) as
opposed to launching multiple worker daemons and one executor per worker.
Multiple worker daemons can be considered redundant.
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