What is digg?

The idea - Oct. 04 Slashdot - User created content Del.icio.us - Bookmark / Share / Save Friendster - Social hookups, large groups, no task

Slashdot - User created content

Del.icio.us - Bookmark / Share / Save

Friendster - Social hookups, large groups, no task

$2,000 to launch Developed a project spec - elance Open source technologies - LAMP Basic utilitarian design $99 a mo. hosting

Developed a project spec - elance

Open source technologies - LAMP

Basic utilitarian design

$99 a mo. hosting

Feature Decisions Stay away from me too features Simple and rewarding - one click (digg, bury, #1) Used “ajax” where it made sense Tools to connect to other sites (blog this, javascript widget) Experiment - spy, “cloud view”, visualizations (stack, swarm)

Stay away from me too features

Simple and rewarding - one click (digg, bury, #1)

Used “ajax” where it made sense

Tools to connect to other sites (blog this, javascript widget)

Experiment - spy, “cloud view”, visualizations (stack, swarm)

The “digg effect”

Case Study: From Startup to Enterprise

One Server (Dec 2004-Mar 2005). Monitoring is “someone is working on the site most of the time.” Standard LAMP architecture. Growth -> optimizing queries -> denormalizing.

Monitoring is “someone is working on the site most of the time.”

Standard LAMP architecture.

Growth -> optimizing queries -> denormalizing.

Growth Paris Hilton Silverorange/Digg 2.0 Word of mouth, minimal advertising Steady growth with occasional insanity

Paris Hilton

Silverorange/Digg 2.0

Word of mouth, minimal advertising

Steady growth with occasional insanity

Seed Funding. Small Number of Servers (May 2004-Sep 2004) - web server, mysql master, mysql slave. Ad-hoc monitoring. 1 Dedicated operations person. Silverorange (Digg gets a professional design). Growth continues to outstrip hardware, though now more constrained by developer resources.

Small Number of Servers (May 2004-Sep 2004) - web server, mysql master, mysql slave.

Ad-hoc monitoring.

1 Dedicated operations person.

Silverorange (Digg gets a professional design).

Growth continues to outstrip hardware, though now more constrained by developer resources.

Series A. $100k on Servers. Spares! Everyone in the same place Operations Department (currently 4 people). Hire senior developers.

$100k on Servers. Spares!

Everyone in the same place

Operations Department (currently 4 people).

Hire senior developers.

Description of Digg Architecture LAMP + memcached. Rough estimate of lines of code (historical trend). I.e. Digg 1.0 = 5k lines of code. Digg 2.0 = 50k. Digg 3.0 = 200k (will fill in actual numbers). Diagram (something like timeless’s “shards” diagram).

LAMP + memcached.

Rough estimate of lines of code (historical trend). I.e. Digg 1.0 = 5k lines of code. Digg 2.0 = 50k. Digg 3.0 = 200k (will fill in actual numbers).

Diagram (something like timeless’s “shards” diagram).

Monitoring (Nagios/Cacti). A couple of screenshots - Cacti Graphs.

Development Process. Subversion, Bugzilla, Wiki. Trac.1 Developer --> 3 --> 7. Talk a little about managing that.

Office. Pictures? Moved in May 2006, already outgrowing.

Stats 1M+ Registered users 10M+ Pages per day 1.2M+ Daily unique visitors 100+ Linux boxes (break this down)

1M+ Registered users

10M+ Pages per day

1.2M+ Daily unique visitors

100+ Linux boxes (break this down)

New Features/Announcements

Future Plans Party!!!

Party!!!