How Instagram saved their platform
In this video I briefly explore how Instagram handled massive user growth and activity. I talk mainly about "denormalized counter" which was their database solution to handling accounts with massive followers.
Original Article (How Instagram Solved Its Justin Bieber Problem)
https://www.wired.com/2015/11/how-ins...
0:00 The problem
0:35 The solution
Technologies:
Memory cache: Speed
Databases: Storage
Hard disks: Traditional
Denormalized counter: Efficiency
Data centers: Infrastructure
PostgreSQL: Database