[rabbitmq-discuss] messages not getting acknowledged as it should be

Matthias Radestock matthias at rabbitmq.com
Tue Jan 22 23:28:27 GMT 2013

On 22/01/13 23:16, jdepp wrote:
> thanks....so setting basicqos will help a little but basically it all boils
> down to the actual processing of my consumer, right?

If you set the basic.qos prefetch to 1 then consuming will be no faster 
than basic.get. By setting a higher value - tuned to the network latency 
and consumer processing time - one can ensure that a consumer neither 
has to wait for the broker (as it would with a too low prefetch 
settings) nor buffer lots of messages (as it would with a too high 
prefetch settings).


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