Github user kiszk commented on the issue:
https://github.com/apache/spark/pull/21342
Basically, I agree with this two-step direction. However, I think that it
is too risky to simply throw and catch `SparkException`. This is because other
`SparkException` may be caught in step 2. For example, [this
line](https://github.com/apache/spark/pull/21342/files#diff-b024f971b46c65ddb0e4f9dcd3a831f7L100)
throws `SparkException`.
Can we throw and catch another Exception or filter the caught
`SparkException` with certain string?
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