Github user aarondav commented on the pull request:
https://github.com/apache/spark/pull/607#issuecomment-41870766
@tgraves @sryza @pwendell Please take a look if possible. I know next to
nothing about Hadoop security, but this problem bit us pretty hard recently. As
far as my understanding goes, this solution _should_ preserve the behavior of
Spark on YARN as long as tokens do not expire, which I hope is the usual case
for people just getting started with YARN.
I have not tested thoroughly on YARN, I can try to do that if this solution
seems reasonable.
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