Github user srowen commented on the pull request:
https://github.com/apache/spark/pull/4690#issuecomment-75108909
@andrewor14 yeah I like that, although, it works by adding and removing a
dummy hook and checking for an exception :) Maybe we can make a Utils method
for a `safeRemoveShutdownHook` that just catches the exception? there is one
other place in `ExecutorRunner` where this can be used too. I know, that starts
to be more than a HOTFIX. I'd be OK either construing this as part of the
original JIRA or just making a new one for this slightly different issue.
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