[rabbitmq-discuss] Performance issue over time in a consumer using basic qos (mirrored queues)
matthias at rabbitmq.com
Wed Nov 9 17:46:49 GMT 2011
On 08/11/11 14:11, Tarjei Romtveit wrote:
> 3. We have currently two brokers in a cluster
> 4. The queues are set up in mirrored (We can not lose any messages),
> durable and non-exclusive.
What do you mean by "mirrored"? Presumably not rabbit's active-active HA
queue mirroring, since that only became available in 2.6.0 and you are
> Over time we see a larger performance decrease in consuming the messages
> from the broker. The consumer is deadly fast in the start. 1-2 ms per
> message. Then the retrieval gradually decreases to 25-26 ms per message.
At the risk of stating the obvious, the slow-down isn't just due to
there being no more messages in the queue, right? Are you seeing a
backlog build up? If so, is the server busy?
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