Github user srowen commented on the pull request:
https://github.com/apache/spark/pull/7993#issuecomment-136875930
It's not the same issue as SPARK-4783, but that issue established the
behavior for this code path. It was originally a hard JVM exit; now it's an
exception (that probably causes the JVM to exit). Making it not-exit seems
wrong then which is why I referenced it.
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