This is the first time I've ever heard any criticism for redis. As far as I know, everyone loves it, it's a great tool for many jobs and it's amazingly written and solid to boot. I think many of the critics are trying to apply it in ways it wasn't meant to be used.
As far as I know, its main purpose is non-critical data that needs to be accessed as quickly as possible in various different ways, and that's where redis shines.
As far as I know, its main purpose is non-critical data that needs to be accessed as quickly as possible in various different ways, and that's where redis shines.