Puma.com and other related web properties are using Redis’ hashes, lists, and sets (sorted and unsorted) for fragment caching and third party responses caching:
We used Redis as our cache store for two reasons. First, we were already using it for other purposes, so reusing it kept the technology stack simpler. But more importantly, Redis’ wildcard key matching makes cache expiration a snap. It’s well known that cache expiration is one of two hard things in computer science, but using wildcard key searching, it’s dirt simple to pull back all keys that begin with “views” and contain the word “articles” and expire them everytime an article is changed. Memcached has no such ability.
Original title and link: Powered by Redis: PUMA.com ( ©myNoSQL)