Github user vanzin commented on the pull request:
https://github.com/apache/spark/pull/2320#issuecomment-184991645
@hsaputra if you don't care about multiple users, just create a principal /
keytab pair for each of your workers, and set up a cron job to "kinit" that
principal periodically. Then all processes running as the kinit'ed user (you
should run the Worker processes as that user) will be able to talk to a secured
HDFS.
There's no need to modify Spark for that.
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