[rabbitmq-discuss] Performance and load testing of RMQ
Simon MacMullen
simon at rabbitmq.com
Thu Sep 26 10:32:50 BST 2013
On 25/09/2013 6:20PM, k.madnani84 wrote:
> I have few questions on MultiCastMain.java...
>
> 1) Could you tell me how is the -c option behaving and what appropriate
> integer value should we use in it.
It turns on confirms, and then will only allow (number specified)
unconfirmed messages before pausing publishing and waiting for confirms.
> 2) What is nacked rate? It comes always 0 msg/s irrespective of what options
> we use.
Nacks are very rare, you would only tend to receive them if a queue
crashes and you are using confirms.
> 3) What is returned rate?
Number of basic.return messages received when using mandatory publishing.
> 4) Whenever we use the option -f immediate it throws an exception "Exception
> in thread "Thread-1" com.rabbitmq.client.AlreadyClosedException: clean
> connection shutdown; reason: Attempt to use closed channel
> "
Yes, immediate support was removed from RabbitMQ server 3.0.0, see
http://www.rabbitmq.com/blog/2012/11/19/breaking-things-with-rabbitmq-3-0/.
Cheers, Simon
--
Simon MacMullen
RabbitMQ, Pivotal
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