Скачать или смотреть AWS Outage Explained: The Race Condition That Broke The World's Largest Cloud

On October 19, 2025, AWS suffered a massive 14-hour outage that started with a single race condition in AWS's DNS and cascaded across EC2, Lambda, and dozens of other services. This video breaks down exactly what happened, using architecture diagrams to explain the technical details.

🔴 What You'll Learn:
The race condition that deleted DynamoDB's DNS records
How DNS management works at AWS scale (hundreds of thousands of records)
Why the bug was "latent" and waiting to trigger
How this could have been prevented with conditional updates

🔗 Resources:
Official AWS Postmortem: https://aws.amazon.com/message/101925
Excalidraw Diagram: https://excalidraw.com/#json=jlYV56WT...

💡 Key Takeaways:
This outage demonstrates how a single bug in foundational infrastructure can cascade across an entire cloud platform. The fix is actually simple: use conditional updates (UPSERT with version checking) to prevent stale data from overwriting fresh data - a pattern that's standard practice in distributed systems.

#AWS #SystemDesign #CloudComputing #DynamoDB #TechExplained

📝 About:
Deep dives into real-world system failures, postmortems, and distributed systems architecture. If you want to understand how large-scale systems work (and break), subscribe for more technical breakdowns.

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Disclaimer: This is an educational analysis based on AWS's public postmortem. All diagrams and explanations are my interpretation for learning purposes.