All 7 Redis Backup & Disaster Recovery questions
More in Redis Backup & Disaster Recovery
How do you create a manual backup of your Redis data at a specific point in time? How do you restore a Redis instance from a previously saved RDB backup file? What is a reasonable backup schedule and retention policy to establish for a production Redis instance? How do managed cloud Redis services typically handle backup and disaster recovery differently than a self hosted Redis instance? How would you design and test a complete disaster recovery drill for a Redis based application to verify your team can actually recover successfully under pressure? What considerations are important when backing up a very large Redis dataset without significantly impacting production performance during the backup process?
Advertisement
Redis › Redis Backup & Disaster Recovery

How would you set up a disaster recovery plan for Redis that accounts for an entire data center or region becoming unavailable?

Intermediate

Answer

You would maintain replicas or a full standby Redis Cluster in a geographically separate location, regularly synchronize or ship backups to that separate location, document and periodically test a clear failover procedure for redirecting your application to the standby location, and ensure your team knows exactly what steps to take during an actual disaster scenario.
-- Replicate to a standby instance in a different region
REPLICAOF primary_server_in_other_region 6379
Real-world example A global e-commerce company maintains a fully synchronized Redis replica in a separate geographic region, with a documented and regularly tested failover procedure ready to redirect traffic there if their primary data center ever becomes completely unavailable.

Common follow-ups: How often should a disaster recovery failover procedure actually be tested?;What is an acceptable amount of data loss during this kind of regional failover?

Redis Replication;Redis Sentinel & High Availability
All 7 Redis Backup & Disaster Recovery questions