SarenIT — WritingTechnical articles by Kamil Supera.https://saren-it.com/Anatomy of an N+1: How One Redundant findById Turned 50 Updates into 1000 Querieshttps://saren-it.com/blog/n_1/https://saren-it.com/blog/n_1/A production war story: APM flagged an N+1 pattern in a nightly cache job. The culprit was not lazy loading — it was a redundant re-fetch multiplied by a loop that should never have contained it.Sun, 19 Jul 2026 00:00:00 GMT