2008-03 Randy Shoup: eBay's Architectural Principles (QCon London 2008, p25).pdf
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eBay’s Architectural Principles
Architectural Strategies, Patterns, and Forces
for Scaling a Large eCommerce Site
Randy Shoup
eBay Distinguished Architect
QCon London 2008
March 14, 2008
What we’re up against
• eBay manages …
Over 276 000 000 registered users
–
Over
276
,
000
,
000
registered
users
– Over 2 Billion photos
– eBay users worldwide trade on average $2039
in goods every second
An SUV is sold every 5 minutes
A sporting good sells every 2 seconds
in
goods
every
second
– eBay averages well over 1 billion page views
per day
– At any given time, there are over 113 million
items for sale in over 50 000 categories
items
for
sale
in
over
50
,
000
categories
– eBay stores over 2 Petabytes of data – over
200 times the size of the Library of Congress!
– The eBay platform handles 5.5 billion API calls
Over ½ Million pounds of
per month
• In a dynamic environment
– 300+ features per quarter
Kimchi are sold every year!
– W e roll 100,000+ lines of code every two weeks
• In 39 countries, in 7 languages, 24x7x365
>48 Billion SQL executions/day!
© 2008 eBay Inc.
>48
Billion
SQL
executions/day!
of 25
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