Avery Payne:
Finally, with regard to the up vs actually running issue, I'm not even going to try and address it due to the race conditions involved.
RabbitMQ is the canonical example of the real world problems here. With durable queues containing a lot of persistent messages, it can be tens of minutes (on one of my machines) before a freshly started RabbitMQ daemon opens its server socket and allows TCP connections.
