Github user dongjoon-hyun commented on the issue:
https://github.com/apache/spark/pull/20359
Thank you for review, @cloud-fan and @gatorsmile .
So far, there is no test case to generate this kind of Spark job hung (in
executor-side).
I fully understand your viewpoints. I'll try this way in our customer
production environment first after internal QE. Since this is intermittent
deadlock situation, we don't know whether this is clearly removed or not. But,
we can monitor that at least.
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