Queue congestion (public queue)

We frequently notice that submissions get stuck in the queue. This happens with RabbitMQ when incoming messages rate is greater then outgoing messages.

How can we solve this issue?

• Can we have multiple Rabbit Queues (one for each Codabench Queue)
• Can we increase the rate limits so that we don't get this problem
• Can we have a UI to monitor the queue and interact with the queue?