According to DB-Engines, Redis is the #1 key value store and #7 overall most popular database. It’s a versatile in-memory data store that’s been around since 2009 and remains very popular for many types of use cases. Redis is more powerful, more popular, and better supported than the closest competitor, Memcached. Memcached can only do a small fraction of the things Redis can do. In this Redis Jetpack guide, you’ll learn some basics about Redis, use cases and CLI commands, and much more.