Re-sync apps, see Hot App Updates.
Rpush will print some debug information to the log, e.g:
[2014-09-06 22:10:09] [test] { "dispatchers": { "0": { "started_at": "2014-09-06T22:09:43-07:00", "dispatched": 0, "thread_status": "sleep" } }, "queued": 0 }
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