Redis HA (High Availability)
- Another popular setup is the main deployment with a secondary deployment that is always kept in sync with the replication. The secondary instances can be one or more instances in our deployment, which helps in scale reads from Redis, and provide failover in the case when the main is lost.
Redis and its role in System Design
Redis is an open-source, in-memory data structure store used as a database, cache, and message broker. It is widely used for its fast performance, flexibility, and ease of use.
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