Redis › Redis Monitoring & Observability

What key metrics should you monitor to keep track of a Redis instance's overall health?

Beginner

Answer

You should regularly monitor memory usage relative to your configured maximum, the number of currently connected clients, hit and miss ratio for cache workloads, replication status and lag if using replicas, and the rate of commands being processed, together giving you a solid picture of whether Redis is healthy and performing as expected.
redis-cli info stats
redis-cli info memory
redis-cli info replication
Real-world example An operations team builds a monitoring dashboard tracking these core metrics for their production Redis instance, catching a memory usage trend heading toward their configured limit well before it actually becomes a problem.

Common follow-ups: What tools are commonly used to visualize these metrics over time?;How often should these key metrics realistically be checked?