Redis is good only for a limited set of use cases. 1. Cache it's amazing... unless you need keys something more complex than key value, e.g. multiple keys, inv

Redis is good only for a limited set of use cases. 1. Cache it's amazing... unless you need keys something more complex than key value, e.g. multiple keys, invalidate by pattern etc... So ... not so good actually. 2. Pubsub doesn't sale really good, and that'a a real limitation 3. The new pubsub is purely a copy of Kafka ( they admit that in docs) but in a much less supported, and feature rich version. So despite I'm still using Redis in my Day today, as of 2020 I don't see redis in any new setup.