Github user zhaoyunjiong commented on the issue:
https://github.com/apache/spark/pull/14887
@jerryshao, In the original patch I made a mistake, it should return
_recoveryPath in the last instead of return null. After that fix, I don't think
it will introduce a situation where recovery data existed in multiple
directories.
I think your idea is great if yarn didn't set _recoveryPath, skip keep
records in db.
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