Why Database Connection Pools Need Connection Validation

Episode 31 of Database Tech with Fexingo dives into connection validation — the silent killer of production databases. Lucas and Luna explore why a PostgreSQL pool at a mid-sized e-commerce company crashed during Black Friday, how a single 'SELECT 1' health check could have prevented it, and why many teams skip validation until it's too late. They break down the difference between idle-in-transaction timeouts, TCP keepalives, and application-level validation, with concrete numbers on latency trade-offs. If you've ever seen a 'connection reset' error and wondered why, this episode has answers. Plus, a quick note on how listener support keeps the show ad-free — at buy-me-a-coffee dot com slash fexingo. #DatabaseConnectionPools #ConnectionValidation #PostgreSQL #MySQL #BackendEngineering #DatabasePerformance #NodeJS #Python #Java #PostgreSQLConnectionPool #PgBouncer #HikariCP #ConnectionPoolTuning #DatabaseHealthChecks #ProductionDatabase #BackendInfrastructure #FexingoBusiness #TechnologyPodcast Keep every episode free: buymeacoffee.com/fexingo