![Andy Pavlo (@andy_pavlo@discuss.systems) on X: "This is a good example of how config defaults can be wrong. MySQL's INNODB_ADAPTIVE_HASH_INDEX is set to ON by default. This company has 100s of DBs so Andy Pavlo (@andy_pavlo@discuss.systems) on X: "This is a good example of how config defaults can be wrong. MySQL's INNODB_ADAPTIVE_HASH_INDEX is set to ON by default. This company has 100s of DBs so](https://pbs.twimg.com/media/E8XCskHXEAcGn2n.jpg)
Andy Pavlo (@andy_pavlo@discuss.systems) on X: "This is a good example of how config defaults can be wrong. MySQL's INNODB_ADAPTIVE_HASH_INDEX is set to ON by default. This company has 100s of DBs so
![Story about unexpected slowdown during AWS RDS upgrade to AWS Aurora and InnoDB adaptive hash index parameter | by Henrik Peinar | Security and Node.js Story about unexpected slowdown during AWS RDS upgrade to AWS Aurora and InnoDB adaptive hash index parameter | by Henrik Peinar | Security and Node.js](https://miro.medium.com/v2/resize:fit:940/1*irtKPlHu5NQSre16UjCbEw.png)
Story about unexpected slowdown during AWS RDS upgrade to AWS Aurora and InnoDB adaptive hash index parameter | by Henrik Peinar | Security and Node.js
![Story about unexpected slowdown during AWS RDS upgrade to AWS Aurora and InnoDB adaptive hash index parameter | by Henrik Peinar | Security and Node.js Story about unexpected slowdown during AWS RDS upgrade to AWS Aurora and InnoDB adaptive hash index parameter | by Henrik Peinar | Security and Node.js](https://miro.medium.com/v2/resize:fit:1358/1*aUGjPHi32QpsgU9QhCUWiA.png)