Redis observability guidance — which metrics to monitor (memory, connections, hit ratio, ops/sec, rejected connections), which built-in commands to reach for during incident triage (SLOWLOG, INFO, MEMORY DOCTOR, CLIENT LIST, FT.PROFILE), and when to use the Redis Insight GUI. Use when setting up mon

Redis Observability What to watch, what to run, and what to alert on. Covers the metrics every Redis deployment should monitor and the built in commands for ad hoc diagnosis. When to apply Setting up monitoring or alerts for a Redis instance. Diagnosing a Redis performance regression (high latency, memory pressure, connection storms). Profiling a slow FT.SEARCH or pipeline. Wiring Redis metrics into Prometheus, Datadog, CloudWatch, or similar. 1. Monitor these metrics These come from INFO and should be exported to your monitoring system. Metric What it tells you Alert when used memory Current memory usage 80% of maxmemory connected clients Open connections Sudden spikes or drops blocked clients Clients waiting on blocking ops 0 sustained instantaneous ops per sec Current throughput Significant drops keyspace hits / keyspace misses Cache hit ratio Hit ratio < 80% rejected connections Hit maxclients cap 0 rdb last save time Last persistence snapshot Too old vs. RPO See [references/metrics.md](references/metrics.md). 2. Built in commands for debugging Reach for these when something looks off. Topic Command Slow commands SLOWLOG GET 10 / SLOWLOG LEN / SLOWLOG RESET Server snapshot INFO all (or INFO memory / INFO stats / INFO clients / INFO replication ) Memory diagnostics MEMORY DOCTOR / MEMORY STATS / MEMORY USAGE <key Connections CLIENT LIST / CLIENT INFO RQE / Search FT.INFO <idx / FT.PROFILE <idx SEARCH QUERY "..." The two most useful for incident triage: SLOWLOG GET to find queries that exceeded the slowlog log slower than threshold (10ms by default). The output shows the exact command and duration in microseconds. MEMORY DOCTOR for memory pressure — it returns a one paragraph summary of what's unusual about memory usage right now. See [references/commands.md](references/commands.md). 3. Redis Insight For interactive use (running queries, browsing keys, profiling indexes), [Redis Insight](https://redis.io/insight/) is the official GUI. It surfaces the same SLOWLOG / INFO / FT.PROFILE data visually and includes Redis Copilot for natural language queries. Useful during development and incident response; not a replacement for exporting metrics to your monitoring system. References [Redis: Latency monitoring](https://redis.io/docs/latest/operate/oss and stack/management/optimization/latency/) [Redis Insight](https://redis.io/insight/)

redis-observability