Redis Replication for Redundancy

Imagine your data disappearing or your server becoming overloaded! Redis replication is a robust feature designed to prevent these issues.

It allows you to create exact copies of your Redis dataset across multiple Redis instances. These copies are called replicas (formerly slaves), and the original is the master.

In a replication setup, one Redis instance acts as the master. It's the primary source for all write operations.

• Master: Handles all write commands (like SET, LPUSH) and propagates changes to its replicas.
• Replicas: Receive a copy of the master's data. They primarily handle read commands (like GET, LRANGE), offloading work from the master.