[rabbitmq-discuss] Query about performance

Michael Giagnocavo mgg at giagnocavo.net
Mon Jan 20 20:28:07 GMT 2014

>> i) Removed basicQos() call from the consumer code, so that the full 
> capacity is used

>Consider using a larger prefetch count instead of unlimited.

I'll just an an anecdote here: Shovel does unlimited prefetch by default. This lead to our RabbitMQ instances grinding to a halt under any sort of load due to exhausting memory. A 2K msg prefetch solved everything with no perf loss.


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