Github user zsxwing commented on the pull request:
https://github.com/apache/spark/pull/5277#issuecomment-87941679
> I am worried about the case where calling EventLoop.stop() from the event
loop thread itself (which can happen transitively here) leads to a one-threaded
deadlock, but I guess your other patch addresses this?
Yes. Calling EventLoop.stop() from the event loop thread itself won't lead
a one-threaded deadlock.
@JoshRosen Your thoughts about moving these `stop`s out of the lock?
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