[rabbitmq-discuss] Clustering Question

Fri Jun 5 20:29:12 BST 2009

Guys

I recommend Tony's recent london geek night talk on this subject.  I
think I posted the URL in the last day or two.

alexis

On Fri, Jun 5, 2009 at 7:55 PM, Arvind Jayaprakash<work at anomalizer.net> wrote:
> On Jun 05, Hugh Watkins wrote:
>>I was trying to understand how the clustering support works in RabbitMQ
>>
>>1) From the documentation the message queue data is not clustered, so if you
>>have queue created on one machine and the queue is not persisted then that
>>box going down will cause the queued messages to be destroyed. Is this a
>>correct interpretation?
>>
>>I have a system that is creating perishable queue messages, i.e. they need
>>to be acted on in 100-200 ms or it's to late a timeout will occur further up
>>the chain.  I would like to setup a cluster an protect as many messages as
>>possible.  It would not be worth creating a persistent queue  because it
>>would slow down the processing and as I mentioned these are perishable
>>messages.
>>
>>It seems like I should create different queues on each machine in the
>>cluster and try to load balance across those queues, either by having the
>>producers write too the local queue, round robin or some other mechanism.
>> The workers in turn would listen on all queues.  Does this sound
>>reasonable?  It requires more configuration than I was hoping for because at
>>least the workers have to be aware on another queue being created if another
>>node is added.
>
> Clustering is not going to help in increasing the queue reliability in
> the current implementation. If you intend to replicate queues on
> multiple nodes, they might as well be standalone nodes. Clustering
> increases the availability of only bindings and exchanges.
>
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