[rabbitmq-discuss] Multiple shovels to increase create a LB queue?

Tue Jan 14 06:58:13 GMT 2014

On 14 Jan 2014, at 10:54, Michael Giagnocavo <mgg at giagnocavo.net> wrote:

> What's the rea difference? It seems if I declare all the upstreams on a few downstream queues, it's the same as shoveling. Except shoveling gets the messages out immediately, instead of on-demand. I've read the comparisons and other docs, but it's not quite clear. And federation can connect the multiple central brokers together, but I'm not sure that really helps us - every consumer can connect to every central.
> 
> The only other point of info was a message from Simon saying:
> 
> "Since federation has quite a pull-based model it might prove more fiddly 
> to use than shovel in a situation where you have a lot of satellite 
> brokers publishing to a central broker."

Your assessment is fair, I just wanted to point out that federated queues
can help achieve a similar architecture.

MK

Software Engineer, Pivotal/RabbitMQ