Github user andrewor14 commented on the pull request:
https://github.com/apache/spark/pull/1244#issuecomment-49126716
We only want to do this if the driver shares the same directory structure
as the executors. This is an assumption that is incorrect in many deployment
settings. Really, we should have something like `spark.executor.home` that is
not the same as `SPARK_HOME`.
I am not 100% sure if we can just rip this functionality out actually. I am
under the impression that Mesos still depends on something like this, so we
should double check before we remove it.
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