Github user vanzin commented on the issue: https://github.com/apache/spark/pull/17723 > but I am unsure about kubernetes (perusing their documentation left me unsure) or any others That's kinda orthogonal. This PR isn't Mesos-specific. Mesos, AFAICT, does not support Kerberos (or so I've gathered from Michael's comments on JIRA and here). But that has no bearing on whether applications running on Mesos can talk to Hadoop services that use kerberos. So, this is purely about handling Hadoop authentication for Hadoop services. The authentication used to launch the application on Mesos has nothing to do with the auth used to talk to HDFS or other services. The same applies if you replace Mesos with any other cluster manager.
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