Github user andrewor14 commented on the pull request:
https://github.com/apache/spark/pull/4474#issuecomment-73564181
@lianhuiwang I think it's a bad idea in general to catch out of memory
errors, because by the time it is thrown the JVM may already be in a bad state
even if we are able to recover by aborting the task. I think the correct thing
to do here is to avoid the OOM in the first place through some other means
instead of trying to recover from it when it's already too late.
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