Redis Replication
Redis Replication is a feature that allows data from a primary Redis server (master) to be automatically copied to one or more secondary servers (replicas). It provides data redundancy, high availability, and scalability by enabling read operations to be distributed across replicas. This mechanism ensures that replicas maintain an identical dataset as the master, supporting both synchronous and asynchronous replication modes.
Developers should use Redis Replication to enhance fault tolerance and performance in production environments, as it allows for automatic failover if the master fails and offloads read queries to replicas. It is essential for applications requiring high availability, such as e-commerce platforms or real-time analytics, where data consistency and minimal downtime are critical. Learning this is crucial for deploying resilient Redis clusters in distributed systems.