What are the different persistence methods in Redis?

What are the different persistence methods in Redis?

Redis offers two main persistence methods: RDB (Redis Database Backup) and AOF (Append Only File). RDB creates snapshots of your dataset at specified intervals, while AOF logs every write operation received by the server.

Can you explain how RDB works?

Sure! RDB works by taking a snapshot of your dataset at specific intervals. You can configure these intervals in the Redis configuration file. The snapshot is saved to a binary file, which can be used to restore the dataset.

What about AOF? How does it differ from RDB?

AOF logs every write operation in real-time, which allows for more granular recovery. Unlike RDB, which saves snapshots, AOF can be configured to rewrite the log periodically to reduce file size.

Which method is better for data durability?

AOF is generally considered better for data durability because it logs every operation, minimizing data loss. However, it can be slower than RDB due to the overhead of logging.