---
author:
    email: mail@petermolnar.net
    image: https://petermolnar.net/favicon.jpg
    name: Peter Molnar
    url: https://petermolnar.net
copies:
- http://web.archive.org/web/20141207175938/https://petermolnar.eu/blips/table_definition_cache-in-mysql-5-6/
lang: en
published: '2013-07-22T10:40:05+00:00'
redirect:
- '359261558859239000'
tags:
- MySQL

---

When upgrading to MySQL 5.6 and you see insane memory usage, Google
"table\_definition\_cache" to save the day.