Mesos/Spark Deadlock

[Gary Malouf]

I just wanted to bring up a significant Mesos/Spark issue that makes the
combo difficult to use for teams larger than 4-5 people.  It's covered in
https://issues.apache.org/jira/browse/MESOS-1688.  My understanding is that
Spark's use of executors in fine-grained mode is a very different behavior
than many of the other common frameworks for Mesos.