Redis is an in-memory key-value store. Aside from storing simple string-string mappings, it also supports a lot of data structures like sets, lists and queues.

It’s pretty cool.

Useful links

  • Project link https://redis.io/
  • Redis key eviction https://redis.io/docs/reference/eviction/

License

Redis recently switched to a closed-source license. There are many forks, better to move to one of them. Redict is one such fork.