Hello, as from object, when I run scala spark-shell on our mesos (0.19) cluster some spark slaves just hang at the end of the staging phase for any given elaboration.
The cluster has mixed OSes (Ubuntu 14.04 / Debian 7.4), but if I run the same shell and commands using coarse grained mode everything works just fine. I'm using a spark 1.1.0-SNAPSHOT built from sources (pulled today from git), on openjdk-7. Sadly I can't get any error message from the sandboxes for the hanging slaves, everything seems in order, just stuck. Any suggestion on how to debug this? thanks, Federico
