Snapshot and AOF Combination
The recommended approach for backups is to use a combination of RDB snapshots and AOF persistence. RDB snapshots provide a point-in-time backup with lower memory and storage overhead, while AOF persistence ensures data durability and faster recovery from crashes.
Redis Configuration:
# Enable AOF Persistence
appendonly yes# Optionally, set AOF rewrite rules to control the AOF file size
auto-aof-rewrite-percentage 100
auto-aof-rewrite-min-size 64mb
Note: It’s crucial to ensure that the backup files are regularly copied to external storage or another server to prevent data loss due to server failures or disasters.
Complete tutorial on Backup in Redis
A Redis backup is a copy of the Redis dataset that is saved to a separate location, typically on disk, to provide a means of data recovery.
- Redis provides several commands and mechanisms to perform backups, including snapshots and persistence options.
- While Redis is known for its high performance and low latency, it’s important to have a backup strategy in place to ensure data durability and recoverability in case of data loss or system failures.