Github user tgravescs commented on the pull request:
https://github.com/apache/spark/pull/2126#issuecomment-53434178
I assume you are not using secure HDFS? Is this problem something caused
inside of Mesos? Like is it doing nested doAs calls. I'm not familiar with the
mesos deploys.
You shouldn't need to set the HADOOP_USER_NAME variable because it is
already creating a remote user and then doing a doAs with that user, which
should be setting the user without the need for the env variable.
What is the debug statment returning for the user when you run into the
problem?
logDebug("running as user: " + user)
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