[jondot]

More or less the same. Plus it will use all cores on MRI, so you can keep using gems with C-Extensions (i.e. you don't have to run rbx or JRuby to max all cores).

Discussing reliability - this is something that sadly Sidekiq will never give you, by virtue of the fact that it uses Redis. RabbitMQ can be clustered in active-active mode, which means you have won over reliability here by just using a cluster.

When comparing queue systems, comparing Sidekiq+Redis to RabbitMQ is a bit unfair - because RabbitMQ was born to do this. And that's why if you're doing proper background jobs and messaging it's better to pick the right tool.

That being said, I do keep using Sidekiq for small Rails apps for the typical background emailers, denormalizers, etc. But I keep an eye open for when I realize that I'm doing proper messaging - in which case I'll switch over to something like Sneakers.

[MoOmer]

I've got to say that the more I hear "Redis can never be reliable" the more I cringe. It just seems like one of those things that's been said and repeated without people stopping to fact-check along the way.

Redis Clustering tutorial: http://redis.io/topics/cluster-tutorial

Redis persistence (using AOF or RDB or both): http://redis.io/topics/persistence

[jondot]

Right now Redis cannot be clustered production-ready. I wish. As I stated in the Wiki, you'll have to pry Redis from my dead body, I am very happy with it, and for me its a true swiss army knife and I've used it as such.

Even though it doesn't have clustering - it's rock solid in production and I haven't experienced a drop in one of my Redis servers in around 3 years.

That being said, if you are building a system where reliability is an explicit requirement you can't take those risks.

[druiid]

Still in beta/alpha as far as I last checked (we've been waiting for it). Additionally as far as clustering is concerned there still seem to be a lot of 'unknowns' for me with clustering Redis. Using a cluster in RabbitMQ is dead simple and it just works.

[milkshakes]

you might want to do some fact checking yourself before you cringe.

i would start here: http://aphyr.com/tags/Redis