Major Description
We at Mesosphere have written Kerberos support for Spark on Mesos. The code to use Kerberos on a Mesos cluster has been added to Apache Spark (SPARK-16742). This ticket is to complete the implementation and allow for ticket renewal and creation. Specifically for long running and streaming jobs.
Mesosphere design doc (needs revision, wip): https://docs.google.com/document/d/1xyzICg7SIaugCEcB4w1vBWp24UDkyJ1Pyt2jtnREFqc/edit#heading=h.tdnq7wilqrj6
