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Scaling Netflix’s WebSocket proxy to billions of connection

Tags: System Design, Distributed Computing, Scale

Omer Khalid, PhD's avatar
Omer Khalid, PhD
Feb 23, 2025
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In September 2024, Netflix published an article titled “Pushy to the Limit: Evolving Netflix’s WebSocket Proxy for the Future,” detailing the advancements of their WebSocket server, Pushy.

Pushy maintains persistent WebSocket connections with devices running the Netflix application, enabling efficient, on-demand data delivery without constant polling.

So…

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