What Happens When You Click Play on Netflix? (System Design Explained)

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Ever wondered what happens between clicking "play" and your show starting? ????

Let us walk you through the INSANE infrastructure powering Netflix:

1️⃣First Stop: Route 53 finds the fastest AWS region for you
2️⃣Second: Load balancers distribute your request across thousands of servers
3️⃣Third: Your viewing history loads from DynamoDB in microseconds
4️⃣Fourth: Video files stored in S3 get ready to stream
5️⃣Fifth: CloudFront delivers from the nearest cache location to YOU
⚡Meanwhile: Kinesis is tracking your behavior, Lambda is processing events, and EMR is crunching PETABYTES of data
????Finally: SageMaker's AI figures out what to recommend next

This complex orchestration serves the same traffic as 15% of the ENTIRE internet - without lag, without crashes, without you even noticing.

That's the beauty of distributed systems!

#NetflixArchitecture #AWSCloud #SystemDesignInterview #CloudEngineering #TechBehindTheScenes #DistributedSystems #Netflix #kodekloud