System Design of Youtube | Mock Interview 5+ years of Experience | HLD | Code Decode
In this video we have akshat with us and we have had mock interview on system design on Youtube HLD
Connect with Akshat : https://enginebogie.com/u/akshatgupta
Linkedin : / gupta-akshat
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Akshat is having experience of 5@Years
Functional Requirements
1. Upload Videos
2. Browse Videos
3. Watch Videos
4. User Analytics / Youtube Studio
5. Multi device support -- Network
6. Recommendations / Feed Page
7. User Comments / Share/ Subscriber Likes
Non Functional
1. Highly available
2. Partition Tolerance
3. Consistency -- Eventual Consistency
4. Users -- 2 Billion
5. Number of videos watched = 5 billion
6. DAU -- 5 million -- 10 million
7. Per user video -- 5 videos per user
8. 10% upload : creator
9. Average video size : 300 MB
1080 p HD -- 120 fps : 1MB : 2MB
Total daily storage -- 5mil _ 10% _ _ 300 MB == 150 TB _ -- 300 TB
- - 450 TB
1. CDN -- Amazon CDN Avg cost per GB = 0.5$ / GB
per day metrics
Cost Optimization
5mil *_ 5 videos _ 0.3GB * 0.05 = 150 K $
Scalability :
auto - scalable solution
replication --. 3x replication = 1.5 PB
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