Github user mccheah commented on the pull request:
https://github.com/apache/spark/pull/4106#issuecomment-76032123
The security model I want to support is: if the client application wants to
execute a job that reads and writes from HDFS that has been secured with
kerberos, they should be allowed to do so if they have the keytab file at the
client side. I also want to do this without token distribution. Is there no way
to do this securely without token distribution?
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