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Failover & Recovery Testing
Redis High Availability with Sentinel
Now the payoff: we kill the primary and watch the cluster heal itself with no human intervention. Before: note the current primary redis-cli -p 26379 sentinel get-master-addr-by-name mymaster # 1) "10.100.100.101" (redis-sv01) # 2) "6379" Seed a key so we ca...
Production Hardening & Troubleshooting
Redis High Availability with Sentinel
The build above is functionally HA. Before production, tighten these. Persistence — survive a full restart Replication protects against one node dying; persistence protects against everything restarting at once. Redis offers two mechanisms, and you can run bot...