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By glamdring
via techblog.bozho.net
Submitted: Jul 17 2014 / 15:01

When working with AWS, in order to have a highly-available setup, once must have instances in more than one availability zone (AZ ≈ data center). If one AZ dies (which may happen), your application should continue serving requests. It’s simple to setup your application nodes in multiple AZ (if they are properly written to be stateless), but it’s trickier for databases, message queues and everything that has state. So let’s see how to configure RabbitMQ. The first steps are not relevant only to RabbitMQ, but to any persistent data solution.
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