Github user andrewor14 commented on the pull request:
https://github.com/apache/spark/pull/2864#issuecomment-60314190
I see... when the JVM's `UncaughtExceptionHandler` catches an OOM exception
it doesn't actually kill the JVM. However, we do want to log the fact that we
are facing an OOM exception somewhere. Even though
`ExecutorUncaughtExceptionHandler` eventually does that it's not clear from the
name `tryOrExit` that we will log the error. I'm just not sure how badly this
issue needs to be fixed. We do this in other places too (e.g. LiveListenerBus
has a polling thread).
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