[rabbitmq-discuss] Performence issue with clustering setup

Eugene Kirpichov ekirpichov at gmail.com
Thu Nov 24 10:15:11 GMT 2011

...And you can do this rate limiting by watching the so called "publisher
confirms" (ConfirmSelect).

On Thu, Nov 24, 2011 at 2:08 PM, Matthias Radestock
<matthias at rabbitmq.com>wrote:

> Jeffrey,
> On 23/11/11 21:40, Jeffrey Chen wrote:
>> I am testing performance on rabbitmq clustering setup. I have 2 nodes
>> with active/active setup, both nodes write to disk, and they both are in
>> a local area network. When I start my publisher and consumer, the
>> publisher is very fast, is it able to send 100000 in few seconds. The
>> problem is the consumer. My consumer is only able to consume around 500
>> messages per second.
> Publishing in AMQP is asynchronous. So when a test is measuring the rate
> at the publisher, one has no idea of the status of those published messages
> - they could all be sitting in local buffers in the client libraries, or in
> various network buffers, etc.
> Furthermore, rabbit is designed to cope with producer spikes, but that
> comes at the cost of reduced consumer rates. So if in your test the
> producer is simply bombarding rabbit with messages, the consumer rate will
> be much lower than it would be otherwise.
> For meaningful benchmark results one needs to rate limit the producer.
> Regards,
> Matthias.
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Eugene Kirpichov
Principal Engineer, Mirantis Inc. http://www.mirantis.com/
Editor, http://fprog.ru/
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