[rabbitmq-discuss] conceptual question
matthias at lshift.net
Fri Jul 17 14:23:59 BST 2009
Alexis Richardson wrote:
> I am fairly sure that....
> On Fri, Jul 3, 2009 at 7:38 PM, <Ken.Anderson at sungard.com> wrote:
>> Sorry to interject here, but I'm curious as to the answer as well.
>> I'm assuming the question is related to performance - does the
>> message make on hop between nodes, and then get distributed,
Actually, the answer, at present, is 'no', though it used to be 'yes'.
We disabled the optimisation which sends just one copy of the message to
a node on which multiple destination queues reside, since it broke some
of AMQP's ordering guarantees. A fix for that, allowing us to re-enable
the optimisation, is on our todo list.
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