Can an ALTER TABLE command take down your production? 🤯 It happened to GitHub on 27th November 2021 when most of their services were down because of a large schema migration. Why did the outage happen? GitHub ran a migration on a massive MySQL table and it made their replicas enter deadlock and crash. Here are the 5 insights about their architecture
ALTER TABLE taking down GitHub
ALTER TABLE taking down GitHub
ALTER TABLE taking down GitHub
Can an ALTER TABLE command take down your production? 🤯 It happened to GitHub on 27th November 2021 when most of their services were down because of a large schema migration. Why did the outage happen? GitHub ran a migration on a massive MySQL table and it made their replicas enter deadlock and crash. Here are the 5 insights about their architecture