What is Redis fault tolerance and how does it work?

What is Redis fault tolerance and how does it work?

Redis fault tolerance refers to the ability of Redis to continue operating correctly even in the event of failures. It uses mechanisms like replication and persistence to ensure data is not lost.

Can you explain how replication works in Redis?

Sure! In Redis, replication involves creating one or more replicas of the primary database. The replicas receive updates from the primary, ensuring they have the same data.

What happens if the primary Redis instance fails?

If the primary instance fails, one of the replicas can be promoted to primary, allowing the system to continue functioning without data loss.

Are there any limitations to Redis fault tolerance?

Yes, while Redis provides strong fault tolerance, it may not handle network partitions well, and there can be a risk of data loss if not configured properly.