Github user vanzin commented on the issue: https://github.com/apache/spark/pull/17723 > This was my point - we should not introduce system specific api's into spark core infrastructure api's/spi's Sorry, I still have no idea what your point is. How do you suggest we support Hadoop security without having code to do it? How can a Spark application running on Mesos talk to secure HDFS without this code? Please explain that, because so far, I'm really confused about exactly what you think this change is about. Adding support for Hadoop security does not preclude adding support for other systems.
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