The app we use for analytics currently works by logging events to the file system and loading them into a mysql database every 5 minutes. I'm trying to convince our sysadmin to let me switch the backend out to use redis, since the only thing I'm using sql for is date filtering.<p>The main roadblock for him is redis' lack of support for automatic failover (at least for the python client libraries I've seen), which I admit has some validity to it. I don't think it's that big of an issue for our use case, but try telling that to an opinionated sysadmin.