Dev Tools · 1h ago
Postgres Lock Monitoring: Why Joining pg_stat_activity and pg_locks Is Critical
Lock contention in Postgres often manifests as latency spikes, not errors. The article explains that pg_stat_activity alone shows who is waiting, while pg_locks shows who holds locks; joining them with pg_blocking_pids() reveals the blocking tree. Without a dashboard, production freezes can last 30 minutes instead of 3.
Meridian48 take
This is a practical deep-dive for Postgres DBAs, but the core lesson—monitoring lock chains proactively—applies broadly to any relational database in production.
postgresqldatabase-monitoring