Database Connection Pool Exhaustion: Causes and Fixes
Why apps hit 'too many connections', how connection pool exhaustion happens, and how to diagnose, size, and fix it before it takes your database down.
ActiveRecord Monitoring: N+1, Slow Queries & Pool Exhaustion
Detect ActiveRecord N+1 queries, slow SQL and pool exhaustion in Rails. Bullet, Prosopite, pg slow logs, Sidekiq pool sizing, and HTTP latency as canary.
PostgreSQL Production Monitoring: Slow Queries & Replication
Monitor PostgreSQL in production. pg_stat_statements, replication lag, autovacuum bloat, lock trees, connection pools, and alert thresholds.
Database Monitoring: How to Monitor MySQL, PostgreSQL, and Redis Uptime
Database downtime brings your entire application down. Learn how to monitor MySQL, PostgreSQL, and Redis uptime, connectivity, and performance from outside.