Introduction to Redis Cache: From Data Structures to Persistence

What is Redis

Redis is an open-source in memory key value database with extremely high performance, commonly used as a cache, message queue, and leaderboard.

Five types of data

String、List、Set、Sorted Set、Hash。

Cache Policy

Cache Aside、Read/Write Through、Write Behind。

persistence

There are two modes: RDB snapshot and AOF log.

Cluster solution

Master slave replication, sentinel mode Redis Cluster。