Critical Description
When a DAG is submitted - "2014-08-21 16:38:06,153 INFO [main] rpc.DAGClientRPCImpl (DAGClientRPCImpl.java:log(428)) - Waiting for DAG to start running" is logged.
After this, nothing seems to get logged till the first task completes.
It would be useful to log when the state changes to RUNNING - as well as at least one line stating the number of tasks, etc (0% progress line). Also, progress could be logged every few seconds irrespective of whether it has changed or not to give the impression that the job has not just gotten stuck.