Github user pwendell commented on the pull request:
https://github.com/apache/spark/pull/247#issuecomment-39402799
Hey TD - Did a pass. Had some questions and surface level comment.
One thing that came up a few was the use of a busy-wait/Thread.sleep along
with interruption. Ideally rather than calling sleep in a loop you would sleep
on a condition variable and notify it in the other thread. With the current
approach you anyways have to keep a pointer to the thread so it knows what to
interrupt. Why not just have a CV?
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