#48Hard
Design a Live Comments Feature for Facebook
Asked by:Facebook
Recommended Solutions from the Web
Great Solution
https://www.hellointerview.com/learn/system-design/problem-breakdowns/fb-live-comments
Video Solution from Meta Engineer
https://www.youtube.com/watch?v=LjLx0fCd1k8
FB Engineering Blog
https://engineering.fb.com/2011/02/07/core-infra/live-commenting-behind-the-scenes/
Leetcode Discussion
https://leetcode.com/discuss/post/583184/fbinstagram-live-comments-system-design-fqtzt/
Key Details & Edge Cases You Should Know
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How will you push live comments to all users?
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How will you make sure new comments are delivered in real-time?
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How will you ensure millions of users get live comments in real time?