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Large Values and Tail Latency in Valkey: Reply Copy Avoidance and COMMANDLOG large-reply
Find out why multi-MB values raise p99.9 for every Valkey client, when 9.0 reply copy avoidance applies, what the COMMANDLOG large-reply log costs, and how to find and fix big values.
Monitoring Valkey: Prometheus Metrics, COMMANDLOG, JSON Logs and the Alerts That Matter
Set up Valkey 9.1 monitoring with redis_exporter and Prometheus: the INFO fields that matter, COMMANDLOG and JSON logs, and starter alert rules with the reasoning behind each.
A Latency Incident Runbook for Valkey 9: Find the Source of a Spike
Trace a Valkey 9.1 latency spike to its cause: client or server, COMMANDLOG, LATENCY DOCTOR and the 27 events 9.1.3 emits, I/O threads, fork, expiry, eviction, and swap.
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