The primary technology used are
- Python with Django
- C
- AWS EC2
- Nginx
- Redis
- Postgres
Take away:
- Don't forget your favicons - 404s may cause you a lot of errors and drag down your applications
- Scaling = replacing all components of a car while driving it at 100mph
- Use http://highscalability.com.
- instrument everything
- having everyone know the code inside out
- horizontal sharding
http://www.scribd.com/doc/89025069/Mike-Krieger-Instagram-at-the-Airbnb-tech-talk-on-Scaling-Instagram
