Github user vanzin commented on the issue:
https://github.com/apache/spark/pull/17986
I don't think this is really necessary. These files are created in
`Utils.getLocalDir`, which on the launcher side is a temporary directory (see
`Utils.getOrCreateLocalRootDirsImpl`). Meaning that as soon as the launcher
exits, these files will be deleted.
If you really want to fix this instance, it may be better to follow Sean's
suggestion and fix all instances, creating an explicit temporary directory
where the files are stored. All this is going to do, though, is to delete the
files earlier - they'd still be deleted when the process exits.
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