Design a News Feed System — Roadmap Step & Resources
Fan-out on write vs fan-out on read for a Facebook/Twitter-style feed
- Level: advanced
- Estimated time: 2 days
- Roadmap: System Design
Before this step
Interview questions
- Fan-out on write vs fan-out on read — how do you decide which to use for a celebrity account?
Study resources
- Designing Facebook's Newsfeed System (Article) — The System Design Primer's own worked example of a news feed system.
- Designing INSTAGRAM: System Design of News Feed (Video) — Gaurav Sen's popular walkthrough of designing a social media news feed.
Part of
- System Design Interview Practice & Case Studies — section
- System Design roadmap — the full learning path