Github user vanzin commented on the pull request:
https://github.com/apache/spark/pull/4770#issuecomment-76057882
> So yarn will use different local dir for launching each executor
But that leaves the case of a single executor being tied to a single local
disk after your patch. You're removing that feature. Disk failures are not an
issue here, if one can fail more than one can also fail, and the block manager
will figure things out.
I don't see how any of this is debatable.
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