I'm not sure how much I can help because I didn't setup the RMQ cluster so I don't know the configuration details but I know it is fairly powerful (its also par

I'm not sure how much I can help because I didn't setup the RMQ cluster so I don't know the configuration details but I know it is fairly powerful (its also partly why I can't entirely be critical of Auth0 because ZMQ is probably far less expensive infrastructure wise). I do know we use multiple queues and even exchanges (and I did not know about the one core to queue). A simple googling shows though folks have achieved far greater throughput[1] than 100k (and by the way this wasn't sustained.. it was spikes). [1]: https://blog.pivotal.io/pivotal/products/rabbitmq-hits-one-million-messages-per-second-on-google-compute-engine https://blog.pivotal.io/pivotal/products/rabbitmq-hits-one-m...