Inside Netflix

Kasun Weerasinghe
2 min readAug 22, 2024

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Unveiling the Powerhouse Behind Seamless Streaming

https://www.linkedin.com/pulse/inside-netflix-deep-dive-its-cutting-edge-system-architecture/

Extensive Systems Design at, an overview on Netflix — the cutting edge System Architecture

First, Netflix is not only the leading player in streaming because of its big content but also because it has a very sophisticated system architecture. It is this elegant foundation that enables millions of users around the world to stream on any device, from anywhere seamlessly.

Microservices- These are small, independent services that discuss over an API and form a large-scale application. This way it scales better, can evolve more easily and has fewer things that could possibly go wrong at the same time so even if one service fails this wouldnt have a cascading effect wrecking your whole system. Netflix uses Cassandra for data storage which is a distributed and highly scalable NoSQL database. Since Cassandra supports scaling out, Netflix has a solution to make certain they can store vast amounts of data on many different machines and that the routers handle peak throughput periods.

Kafka- Netflix uses Kafka as the heart of its messaging system for sending scalable real-time data streaming and communication between different services. It’s designed to allow data to flow freely across the platform, whether it is from user requests or video transcoding and content recommendations.

Hystrix- Hystrix, another critical ingredient ensures fault tolerance by monitoring microservice conversations. This approach is very useful to localize failures, thus avoiding cascading ones and ensuring that system stays resilient under heavy load. Netflix on the other hand utilizes a tool that they’ve developed themselves called Chaos Monkey — which randomly terminates (even production) instances to test whether their service is resilient enough or ‘built-to-survive-failures’. Netfix is proactive to the testing that they are always ready for whatever comes their way.

As an API gateway Zulu takes the incoming requests from users and routes to right services. The gateway is essential to helping keep the platform as responsive and efficient for users so that they get fast, well-targeted responses.

Delivery The Netflix CDN Open Connect is an essential service of course! This helps to reduce latency and buffering for end users by placing servers closer to them.

In summary, Netflix’s cutting-edge system architecture is a blend of innovative technologies and smart engineering practices. By utilizing microservices, Cassandra, Kafka, Hystrix, and Chaos Monkey, Netflix has built a robust, scalable, and resilient platform that continues to set the standard for streaming services globally.

Also, Refer this:- https://kasun-r-weerasinghe.medium.com/architecture-of-netflix-1c38257f1f4a

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Kasun Weerasinghe
Kasun Weerasinghe

Written by Kasun Weerasinghe

Hi there! 👋 I'm Kasun, Front-End Developer. With a deep love for technology and innovation.

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