title: Retrieve queue length with Celery (RabbitMQ, Django)
body: <p>I'm using Celery in a django project, my broker is RabbitMQ, and I want to retrieve the length of the queues. I went through the code of Celery but did not find the tool to do that. I found this issue on stackoverflow (<a href="https://stackoverflow.com/questions/1038318/check-rabbitmq-queue-size-from-client">Check RabbitMQ queue size from client</a>), but I don't find it satisfying.</p>
  
  <p>Everything is setup in celery, so there should be some kind of magic method to retrieve what I want, without specifying a channel / connection.</p>
  
  <p>Does anyone have any idea about this question ?</p>
  
  <p>Thanks !</p>