Github user JoshRosen commented on the pull request:
https://github.com/apache/spark/pull/1643#issuecomment-50693477
Would it be possible to store the PIDs of the workers inside of
PythonWorkerFactory and directly kill the workers via SIGTERM? Or send a
command to the Python daemon and have it kill the workers? That seems like it
would be less complex than this socket-polling approach.
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