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EPISODE · Jun 4, 2026 · 8 MIN

Why Database Connection Pools Need Connection Validation

from Database Tech with Fexingo: SQL, NoSQL, and Data Storage Conversations · host Fexingo

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

Episode metadata supplied by the publisher feed · Published Jun 4, 2026

What this episode covers

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

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Frequently Asked Questions

How long is this episode of Database Tech with Fexingo: SQL, NoSQL, and Data Storage Conversations?

This episode is 8 minutes long.

When was this Database Tech with Fexingo: SQL, NoSQL, and Data Storage Conversations episode published?

This episode was published on June 4, 2026.

What is this episode about?

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...

Can I download this Database Tech with Fexingo: SQL, NoSQL, and Data Storage Conversations episode?

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