[rabbitmq-discuss] Clustering RabbitMQ between Datacentres
pkelly at gmail.com
Mon Oct 31 13:53:19 GMT 2011
On 31 October 2011 13:26, Simon MacMullen <simon at rabbitmq.com> wrote:
> On 31/10/11 13:20, Pete Kelly wrote:
>> We are looking at clustering our RabbitMQ setup at the moment - however
>> we are looking to do it across 2 data centres, one in Europe and one in
>> the USA. There is a VPN between the 2 DC's so packets can be routed
>> between the 2 networks directly over the VPN.
>> Is this a good idea, or would it be classed as one of the "WAN"
>> scenarios which is warned against in the Clustering guide?
> No and yes, unfortunately.
> If it's is a good idea, great! However if not, we will look into having
>> clusters at each end with mod shovel or take another approach.
> Another approach would be the federation plugin.
Thanks, it mentions federation is incompatible with clusters at release 2.5
(I assume), is this still the case?
> Are there any further docs or explanations anyone can point me to to
>> describe the specific problems RabbitMQ has over a "WAN" ?
> It's discussed a bit in this blog post:
> but the short version is that its the CAP theorem. RabbitMQ clustering
> chooses Consistency and Availability and thus loses Partition Tolerance -
> which doesn't work out so well if the links between nodes can go down.
> Cheers, Simon
> Simon MacMullen
> RabbitMQ, VMware
> rabbitmq-discuss mailing list
> rabbitmq-discuss at lists.**rabbitmq.com<rabbitmq-discuss at lists.rabbitmq.com>
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