YouTube Architecture

YouTube adds a new rich set of APIs in order to become your video platform leader--all for free. Upload, edit, watch, search, and comment on video from your own site without visiting YouTube. Compose your site internally from APIs because you'll need to expose them later anyway.

YouTube grew incredibly fast, to over 100 million video views per day, with only a handful of people responsible for scaling the site. How did they manage to deliver all that video to all those users? And how have they evolved since being acquired by Google?

YouTube Reaches One Billion Views Per Day. That’s at least 11,574 views per second, 694,444 views per minute, and 41,666,667 views per hour.

Information Sources
# Google Video

Platform
# Apache
# Python
# Linux (SuSe)
# MySQL
# psyco, a dynamic python->C compiler
# lighttpd for video instead of Apache
What's Inside?
The Stats
# Supports the delivery of over 100 million videos per day.
# Founded 2/2005
# 3/2006 30 million video views/day
# 7/2006 100 million video views/day
# 2 sysadmins, 2 scalability software architects
# 2 feature developers, 2 network engineers, 1 DBA