The Marathon UI doesn't say much:
Agent log on on of the nodes:
[root@mesos-01 vagrant]# journalctl -u mesos-slave | grep 8100a55c-4769
Jul 11 13:15:14 mesos-01 mesos-slave[13462]: I0711 13:15:14.339555 13466 slave.cpp:1361] Got assigned task outyet.8100a55c-4769-11e6-9c8a-a24f98af1591 for framework e5a57e77-2d09-461c-8ea7-5a3631c43516-0000
Jul 11 13:15:14 mesos-01 mesos-slave[13462]: I0711 13:15:14.354274 13470 slave.cpp:1480] Launching task outyet.8100a55c-4769-11e6-9c8a-a24f98af1591 for framework e5a57e77-2d09-461c-8ea7-5a3631c43516-0000
Jul 11 13:15:14 mesos-01 mesos-slave[13462]: I0711 13:15:14.355965 13470 paths.cpp:528] Trying to chown '/var/lib/mesos/slaves/e5a57e77-2d09-461c-8ea7-5a3631c43516-S0/frameworks/e5a57e77-2d09-461c-8ea7-5a3631c43516-0000/executors/outyet.8100a55c-4769-11e6-9c8a-a24f98af1591/runs/3e22524c-575b-4094-af1f-4e582487217f' to user 'root'
Jul 11 13:15:14 mesos-01 mesos-slave[13462]: I0711 13:15:14.363742 13470 slave.cpp:5352] Launching executor outyet.8100a55c-4769-11e6-9c8a-a24f98af1591 of framework e5a57e77-2d09-461c-8ea7-5a3631c43516-0000 with resources cpus(*):0.1; mem(*):32 in work directory '/var/lib/mesos/slaves/e5a57e77-2d09-461c-8ea7-5a3631c43516-S0/frameworks/e5a57e77-2d09-461c-8ea7-5a3631c43516-0000/executors/outyet.8100a55c-4769-11e6-9c8a-a24f98af1591/runs/3e22524c-575b-4094-af1f-4e582487217f'
Jul 11 13:15:14 mesos-01 mesos-slave[13462]: I0711 13:15:14.365597 13470 slave.cpp:1698] Queuing task 'outyet.8100a55c-4769-11e6-9c8a-a24f98af1591' for executor 'outyet.8100a55c-4769-11e6-9c8a-a24f98af1591' of framework e5a57e77-2d09-461c-8ea7-5a3631c43516-0000
Jul 11 13:15:14 mesos-01 mesos-slave[13462]: I0711 13:15:14.372925 13468 docker.cpp:1036] Starting container '3e22524c-575b-4094-af1f-4e582487217f' for task 'outyet.8100a55c-4769-11e6-9c8a-a24f98af1591' (and executor 'outyet.8100a55c-476-11e6-9c8a-a24f98af1591') of framework 'e5a57e77-2d09-461c-8ea7-5a3631c43516-0000'
Jul 11 13:16:14 mesos-01 mesos-slave[13462]: I0711 13:16:14.365823 13467 slave.cpp:4307] Terminating executor ''outyet.8100a55c-4769-11e6-9c8a-a24f98af1591' of framework e5a57e77-2d09-461c-8ea7-5a3631c43516-0000' because it did not register within 1mins
Jul 11 13:16:14 mesos-01 mesos-slave[13462]: E0711 13:16:14.659958 13467 slave.cpp:3758] Container '3e22524c-575b-4094-af1f-4e582487217f' for executor 'outyet.8100a55c-4769-11e6-9c8a-a24f98af1591' of framework e5a57e77-2d09-461c-8ea7-5a3631c43516-0000 failed to start: future discarded
Jul 11 13:16:14 mesos-01 mesos-slave[13462]: E0711 13:16:14.660315 13467 slave.cpp:3855] Termination of executor 'outyet.8100a55c-4769-11e6-9c8a-a24f98af1591' of framework e5a57e77-2d09-461c-8ea7-5a3631c43516-0000 failed: Unknown container: 3e22524c-575b-4094-af1f-4e582487217f
Jul 11 13:16:14 mesos-01 mesos-slave[13462]: I0711 13:16:14.660468 13467 slave.cpp:3012] Handling status update TASK_FAILED (UUID: 3f9ae582-aab1-4fbc-8331-8ac358c27a60) for task outyet.8100a55c-4769-11e6-9c8a-a24f98af1591 of framework e5a57e77-2d09-461c-8ea7-5a3631c43516-0000 from @0.0.0.0:0
Jul 11 13:16:14 mesos-01 mesos-slave[13462]: I0711 13:16:14.710644 13469 status_update_manager.cpp:320] Received status update TASK_FAILED (UUID: 3f9ae582-aab1-4fbc-8331-8ac358c27a60) for task outyet.8100a55c-4769-11e6-9c8a-a24f98af1591 of framework e5a57e77-2d09-461c-8ea7-5a3631c43516-0000
Jul 11 13:16:14 mesos-01 mesos-slave[13462]: I0711 13:16:14.711376 13469 status_update_manager.cpp:824] Checkpointing UPDATE for status update TASK_FAILED (UUID: 3f9ae582-aab1-4fbc-8331-8ac358c27a60) for task outyet.8100a55c-4769-11e6-9c8a-a24f98af1591 of framework e5a57e77-2d09-461c-8ea7-5a3631c43516-0000
Jul 11 13:16:14 mesos-01 mesos-slave[13462]: I0711 13:16:14.751345 13469 slave.cpp:3410] Forwarding the update TASK_FAILED (UUID: 3f9ae582-aab1-4fbc-8331-8ac358c27a60) for task outyet.8100a55c-4769-11e6-9c8a-a24f98af1591 of framework e5a57e77-2d09-461c-8ea7-5a3631c43516-0000 to master@172.17.85.100:5050
Jul 11 13:16:14 mesos-01 mesos-slave[13462]: I0711 13:16:14.885550 13469 status_update_manager.cpp:392] Received status update acknowledgement (UUID: 3f9ae582-aab1-4fbc-8331-8ac358c27a60) for task outyet.8100a55c-4769-11e6-9c8a-a24f98af1591 of framework e5a57e77-2d09-461c-8ea7-5a3631c43516-0000
Jul 11 13:16:14 mesos-01 mesos-slave[13462]: I0711 13:16:14.885702 13469 status_update_manager.cpp:824] Checkpointing ACK for status update TASK_FAILED (UUID: 3f9ae582-aab1-4fbc-8331-8ac358c27a60) for task outyet.8100a55c-4769-11e6-9c8a-a24f98af1591 of framework e5a57e77-2d09-461c-8ea7-5a3631c43516-0000
Jul 11 13:16:14 mesos-01 mesos-slave[13462]: I0711 13:16:14.912014 13469 slave.cpp:3975] Cleaning up executor 'outyet.8100a55c-4769-11e6-9c8a-a24f98af1591' of framework e5a57e77-2d09-461c-8ea7-5a3631c43516-0000
Jul 11 13:16:14 mesos-01 mesos-slave[13462]: I0711 13:16:14.912492 13469 gc.cpp:55] Scheduling '/var/lib/mesos/slaves/e5a57e77-2d09-461c-8ea7-5a3631c43516-S0/frameworks/e5a57e77-2d09-461c-8ea7-5a3631c43516-0000/executors/outyet.8100a55c-4769-11e6-9c8a-a24f98af1591/runs/3e22524c-575b-4094-af1f-4e582487217f' for gc 6.99998944088days in the future
Jul 11 13:16:14 mesos-01 mesos-slave[13462]: I0711 13:16:14.912534 13469 gc.cpp:55] Scheduling '/var/lib/mesos/slaves/e5a57e77-2d09-461c-8ea7-5a3631c43516-S0/frameworks/e5a57e77-2d09-461c-8ea7-5a3631c43516-0000/executors/outyet.8100a55c-4769-11e6-9c8a-a24f98af1591' for gc 6.99998944040593days in the future
Jul 11 13:16:14 mesos-01 mesos-slave[13462]: I0711 13:16:14.912602 13469 gc.cpp:55] Scheduling '/var/lib/mesos/meta/slaves/e5a57e77-2d09-461c-8ea7-5a3631c43516-S0/frameworks/e5a57e77-2d09-461c-8ea7-5a3631c43516-0000/executors/outyet.8100a55c-4769-11e6-9c8a-a24f98af1591/runs/3e22524c-575b-4094-af1f-4e582487217f' for gc 6.99998944009482days in the future
Jul 11 13:16:14 mesos-01 mesos-slave[13462]: I0711 13:16:14.913044 13469 gc.cpp:55] Scheduling '/var/lib/mesos/meta/slaves/e5a57e77-2d09-461c-8ea7-5a3631c43516-S0/frameworks/e5a57e77-2d09-461c-8ea7-5a3631c43516-0000/executors/outyet.8100a55c-4769-11e6-9c8a-a24f98af1591' for gc 6.99998943986074days in the future
Eventually it's all working! Was it just taking so long to pull the images?