I run it on a single server. That said, I imagine in a distributed environment (where you have a couple of machines, not tens, hundreds or more) you can do some

I run it on a single server. That said, I imagine in a distributed environment (where you have a couple of machines, not tens, hundreds or more) you can do something like this on each machine you have (probably not in parrallel though, if something happens you don't want to mess up all the servers?). If someone has a link to a good article / book / video about best practices with this, please post it? There's a lot of talk about how someone did massively scallable systems or deployments (and it's really interesting, lots of cool engineering problems & solutions there), but a real world "here's what we figured works really well for us for a smaller-scale distributed operation" would be really useful, too.