Github user dragos commented on the pull request:
https://github.com/apache/spark/pull/10770#issuecomment-179290756
I am not an expert of this area of the code, nor security... so, you'd like
to run the Mesos executor as one user, but reading from HDFS using another
user? Why can't you run it as the HDFS user on Mesos as well? It seems like
there must be a better solution than to specify two different users.
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