Rails World 2024
Making The Best of a Bad Situation - Lessons from one of Intercom's most painful outages

Incidents are an opportunity to level up, and on 22 Feb 2024 Intercom had one of its most painful outages in recent memory. The root cause? A 32-bit foreign key referencing a 64-bit primary key. Miles McGuire shared what happened, why it happened, and what they are doing to ensure it won't happen again (including some changes you can make to your own Rails apps to help make sure you don’t make the same mistakes.)

#outage #lessonslearned

Thank you Shopify for sponsoring the editing and post-production of these videos. Check out insights from the Engineering team at: https://shopify.engineering/

Stay tuned: all 2024 Rails World videos will be subtitled in Japanese and Brazilian Portuguese soon thanks to our sponsor Happy Scribe, a transcription service built on Rails. https://www.happyscribe.com/

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