Redis CPU Spike! 5-Min Emergency Fix

Fix Redis 70%+ CPU spikes fast: hotkeys, slowlog, Lua, AOF, conn storms—5-min checklist & commands inside.

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When Redis CPU usage exceeds the 70% warning line, you will observe:

• Client request latency significantly increases

• INFO command shows used_cpu_sys and used_cpu_user consistently at high levels

• Monitoring charts display abnormal spikes

• May be accompanied by errors like OOM command not allowed

Step 1: Real-time Snapshot Analysis

# View real-time running commands (refresh every second)
redis-cli --hotkeys
redis-cli --bigkeys

# Monitor slow queries (requires prior configuration)
redis-cli slowlog get 10

# View client connections
redis-cli client list | grep -E “(cmd=.*|omem=.*)”