[rabbitmq-discuss] Broker leak with MulticastMain?

Holger Hoffstätte holger at wizards.de
Wed Jul 16 12:42:05 BST 2008

Matthias Radestock wrote:
> The broker grows because it is queuing messages. And that in turn 
> happens because the producer sends messages as fast as it can, and the 
> broker cannot deliver them to consumers at the same rate.
> MulticastMain allows you to limit the sender rate with "-r". So just use 
> that option to control the rate.

Ah yes - now that explains it. I had misunderstood the test and assumed 
that it always received the same number of messages that the producer(s) 
sent, but  fully reading through the code I now see that it calculates 
only based on the fixed time interval, and that of course can lead to 
queue-up if the rates are not symmetric. Using the -r flag works fine and 
keeps the broker steady.


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