[rabbitmq-discuss] High availibility in queues

[Marek Majkowski]

On Thu, Nov 25, 2010 at 09:45, Gargi, Nikhilesh Prakash
<nikhilesh.gargi at hp.com> wrote:
> We are planning to use RabbitMQ in clustering.
>
> If we add 4 RabbitMQ nodes in a cluster, all the credentials, exchanges and bindings get copied to each mnesia db. However, since the queues are specific to nodes, the message directed to a particular queue will be lost (if the node on which that queue was created is down). Is it correct? How can we workaround this? This seems to be a weak link for a High availability solution we need. Are the message will be persisted somewhere and will be delivered to that queue after that particular node comes up?
>
> If the message is gonna lost, can we have a workaround that we create copies of the queues explicitly on each node. Now since they are copies, the exchange will send the message to all the nodes and even if a node is down, message will be delivered to all the copies of that queue.


Clustering != HA.

Maybe this thread will help:
http://lists.rabbitmq.com/pipermail/rabbitmq-discuss/2010-November/010010.html

Cheers,
 Marek