Oozie stuck in PREP state
Coordinator is in status PREP when it's start time is in the future. Start time in your config is 2014-02-25 11:31 UTC, so if you submitted in at the time of posting the question (2014-02-25 06:45 UTC) it still had about 5 hours to wait in PREP status before creating the first materialization and switching to RUNNING. See documentation about status transitions.
Synchronous jobs (individual jobs, not coordinator jobs, etc.) do the actual work while being in PREP state. It's the case of the SSH Action for example (even though there it is a little more complicated because the java code happens synchronously but the remote shell script is executed asynchronously).
In your case, I think Dmitry's answer is the more helpful one, but it's good to keep in mind that there can be other reasons for being in the PREP state too.