[rabbitmq-discuss] Cluster problem after network bouncing

Wed May 14 09:05:34 BST 2014

On 14/05/14 08:58, Simon MacMullen wrote:
> On 13/05/2014 18:04, Leonardo N. S. Pereira wrote:
>> Hi Simon, thanks very much for your answer.
>> What is the recommended set up for HA running in AWS?
>> Is there a way to workaround the partition problem?
>
> Don't cluster across more than two AZs.
>
> Unless service availability is more important to you than avoiding data
> loss, don't cluster across AZs at all.

Also note that in practice the situation you created in your tests, and 
which causes the odd behaviour - partial partitions (where communication 
between nodes is severed in just one direction) - is less likely to 
occur in practice than full partitions.

Matthias.