Github user mccheah commented on the pull request:
https://github.com/apache/spark/pull/4106#issuecomment-76042475
Your views make sense! Thanks a lot =) the discussion was helpful and
clarified the pitfalls here. I have learned a lot.
I'm going to defer to @pwendell for the decision to commit to this or not.
The way I see it, I think this is still acceptable in the limited use case that
Spark applications are trusted for accessing HDFS and the applications can
serve end users that don't have access to the HDFS credentials. That being said
I started down this path a few months ago, and priorities have shifted since
then: specifically users I'm working with want to move to YARN which would make
this feature unnecessary for them.
So it's more now a matter of if the community would still need this or not,
and our assessment of the risk that users don't understand the security
implications.
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