Gaurav Sen on Instagram: "Incident Report: https://aws.amazon.com/message/101925/ Fault Tolerance Lesson: https://interviewready.io/learn/system-design-course/building-an-ecommerce-app-1-to-1m/4-debugging-in-the-trenches?tab=chapters It was a combination of DynamoDB's DNS failure and health checks, which led to a cascading comedy of collapses in EC2 and load balancers. #AWS #Incident #DNS"

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