Github user markhamstra commented on the pull request:
https://github.com/apache/spark/pull/186#issuecomment-38137124
I need to find the time to think about this for a bit before I'm ready to
say that canceling all the running jobs is the least objectionable remedy, but
regardless of what action we decide to take in preRestart and/or postRestart,
at a minimum we need to be logging everything about the cause of the failure
that we can glean from the Throwable and possible message. Failing silently
and canceling all the running jobs without logging any kind of message is not
an acceptable option.
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