Design Facebook Live Video Streaming
Last updated: June 17, 2026
Quick Overview
Design a live video streaming system at Facebook's scale. Cover video ingestion, transcoding, CDN distribution, adaptive bitrate streaming, and handling millions of concurrent viewers on a single stream.
Meta
System Design
Software Engineer
Meta
June 17, 2026Software Engineer
Onsite
System Design
Hard
134
0
121 solved
Design a live video streaming system at Facebook's scale. Cover video ingestion, transcoding, CDN distribution, adaptive bitrate streaming, and handling millions of concurrent viewers on a single stream.
How to Approach This
- Start by clarifying functional and non-functional requirements with the interviewer.
- Estimate the scale: QPS, storage, bandwidth. This drives your design decisions.
- Draw a high-level architecture first, then deep dive into 1-2 critical components.
- Discuss trade-offs explicitly (e.g., consistency vs availability, SQL vs NoSQL).
- Address failure scenarios, monitoring, and how the system handles 10x traffic spikes.
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