What are the Redis persistence options and when do you use each?

RDB (Redis Database Backup): periodic snapshots of the entire dataset to a binary file. Config: save 900 1 (save if 1 change in 900s), save 60 10000 (if 10000 changes in 60s). Pros: fast recovery from snapshots; compact file. Cons: data loss between snapshots. AOF (Append Only File): logs every write command. Config: appendonly yes; appendfsync everysec (flush to disk every second). Pros: near-zer