Your Node.js App Is Probably Killing Your PostgreSQL (Connection Pooling Explained)

📰 Dev.to · Polliog

Learn how connection pooling can save your PostgreSQL database from being overloaded by your Node.js app

intermediate Published 6 Apr 2026
Action Steps
  1. Check your Node.js app's PostgreSQL connection settings to identify potential issues
  2. Implement connection pooling using a library like pg or pgpool
  3. Configure the connection pool size and timeout settings to balance performance and resource usage
  4. Monitor your PostgreSQL database's memory and CPU usage to identify areas for improvement
  5. Optimize your database queries to reduce the load on the database
Who Needs to Know This

Backend developers and DevOps engineers can benefit from understanding connection pooling to optimize their PostgreSQL database performance and prevent overload

Key Insight

💡 Connection pooling can help prevent PostgreSQL overload by reusing existing connections instead of creating new ones

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🚨 Is your Node.js app killing your PostgreSQL database? Learn about connection pooling to save the day! 💡

Full Article

A few months ago I was looking at why a PostgreSQL instance was running at 94% memory on a server...
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