Support for mirrored queues (x-ha-policy)

[addisonj]

In trying to use sensu with a rabbitmq cluster, one of the missing pieces is a support for mirrored queues.

http://www.rabbitmq.com/ha.html outlines using x-ha-policy.

The ruby AMQP module takes the following option when defining a queue:

:arguments => { "x-ha-policy" => "all" }

Implementation should be pretty trivial. Just curious if anything is planned or some direction on how the config should injected.

[portertech]

As Sensu data is time sensitive, the data in queues isn't necessarily worth mirroring, so I'm currently evaluating a simpler or "poor-mans" HA RabbitMQ setup w/ HAProxy. If the primary RabbitMQ backend becomes unavailable, let all TCP connections drop, causing Sensu components to go into reconnecting state, then switch to the backup RabbitMQ backend. Figuring out if something like this is possible and perhaps a good solution.

[portertech]

Using a standard RabbitMQ cluster behind HAProxy is currently the way to go, http://www.rabbitmq.com/clustering.html

Mirrored queues are not required, nor recommended.