Github user steveloughran commented on the issue:
https://github.com/apache/spark/pull/17364
Created [SPARK-20045](https://issues.apache.org/jira/browse/SPARK-20045). I
think there's room to improve resilience in the abort code, primarily to ensure
that the underlying failure cause doesn't get lost. The codepath there is
fairly complex and I'm not going to point at a snippet and say "here". Some
faulting mock committer would probably be the actual first step: show the
problems, then fix.
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