[rabbitmq-discuss] High availability questions

[Simon MacMullen]

On 27/11/12 21:54, Chris Toomey wrote:
> I'm fairly new to RabbitMQ and we're in the process of setting up our
> production RabbitMQ servers.  We're going to set up a server cluster and
> will use mirrored queues for high availability. I've read through the
> great documentation you guys have on these topics but still have some
> questions.
>
> 1) Given the clustered server redundancy and mirrored queues, is there
> any reason to still make exchanges/queues/messages durable?  Is it just
> to protect against the case when all nodes in the cluster fail?

Or are deliberately stopped.

> 2) In order to update the server configuration, it's necessary to
> restart, correct?  If so, what's the best way to accomplish config.
> updates across a cluster while minimizing downtime and loss of redundancy?

You can update each node's config one at a time, and restart them all 
individually.

> 3) Same question for upgrading to a newer version of RabbitMQ?

In order to update the version of RabbitMQ (or Erlang for that matter) 
you need to stop the entire cluster I'm afraid.

Cheers, Simon

-- 
Simon MacMullen
RabbitMQ, VMware