Are you guys referring to line #167 or the _check_retry_tasks() method? If the former, I'll remove that shortly. If the latter, this is the way tasks to retry are scheduled in this code. The @periodic_task annotation comes from oslo-incubator's periodic_tasks.py module, and is the reason why any of the oslo-incubator files are injected into this code base at all. In fact I took pains to only bring the periodic_tasks module over, but the incubator copy/paste process pulled along all those other files for some reason.