Github user KaiXinXiaoLei commented on the issue:
https://github.com/apache/spark/pull/19951
@tgravescs the job is end, then error log apper. i think this error log
will cause illusions to believe the failure of the task.
@vanzin Your analysis is right. And i think my code can get rid of this
exception. Because when things are stopping, the sc.stopped is set true
firstly. So driver endpoint does not need to send messages to itself.
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