https://imran-khan.com/tags/database/ Recent content in DATABASE on Imran Khan Hugo -- 0.127.0 en-us Sun, 29 Mar 2026 14:00:20 +0000 https://imran-khan.com/posts/your-connection-pool-is-too-big-or-too-small/ Sun, 29 Mar 2026 14:00:20 +0000 https://imran-khan.com/posts/your-connection-pool-is-too-big-or-too-small/ A few years ago I had an API that got slower and slower as traffic went up, which is normal, except the database was sitting at about 20% CPU the whole time. I stared at query plans for two days. Added indexes that didn’t need adding. Eventually someone looked at my code for thirty seconds and asked why I was opening a new database connection inside the request handler. So. Connection pooling.