Github user tejasapatil commented on the pull request:
https://github.com/apache/spark/pull/13042#issuecomment-218540631
@podwhitehawk I agree with @srowen about single argument being passed.
Generally speaking, there is not a maximum path length in Unix but there
might be restrictions on the length of each individual filename / dirname (this
might be due to FS) [0]. Now its possible that the input `dir` is itself a
super super large string and which might cause `rm -rf` to fail due to too
large command. I would argue that even `find .. -delete` would be a victim of
the same. Worse case, we are not able to cleanup the dir using Unix command..
but we still have backup from using Java IO (which I guess will also hit some
limits because it will boil down to a system call).
[0] :
https://www.quora.com/Why-does-UNIX-system-have-maximum-path-of-108-bytes
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