[rabbitmq-discuss] Max Cluster Size?

Tony Garnock-Jones tonygarnockjones+rabbitmq at gmail.com
Thu Mar 17 17:36:20 GMT 2011

Last I heard, Erlang distribution (and hence RabbitMQ clustering)
doesn't scale well past around 32-64 nodes. That could be seriously
out-of-date information, of course :-)

You might be better using a centralised smaller cluster or some kind
of relay tool for inter-broker communication.


On 17 March 2011 13:26, Gavin M. Roy <gmr at myyearbook.com> wrote:
> Is there a pre-established recommended or practical max-cluster size?
> In a particular architecture discussion focused around event processing, I
> am contemplating using a local RabbitMQ node per web server to capture
> events locally. A small pool of consumers would then crunch the data from
> across the cluster in as real-time of a basis as is possible. If I went down
> this route, I'd be starting with a ~500 node cluster and would size
> consumers to match message velocity and would need to be able to at least
> double the cluster size.
> The alternative is to use a much smaller cluster and use JSON-RPC Channel
> plugin.
> Thanks in advance,
> Gavin
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