From Wikitech
Wikimedia infrastructure

Data centres and PoPs


HTTP Caching




These are the current (and former) clusters used by the Wikimedia Foundation, grouped by colocation facilities.

Map of Wikimedia Foundation clusters


One of the Wikimedia server racks at CyrusOne (codfw).
Servers in Ashburn, Virginia (eqiad).
Cluster Location Usage Since
Codfw cluster‎ Carrollton, Texas (United States) Application services 2014
eqdfw Dallas, Texas (United States) Networking 2015[1][2]
Ulsfo cluster‎ San Francisco (United States) Caching 2014[3]
eqord Chicago, Illinois (United States) Networking 2015[1][2]
Eqiad cluster‎ Ashburn, Virginia (United States) Application services 2010
Esams cluster‎ Amsterdam (Netherlands) Caching 2006?
Knams cluster Amsterdam (Netherlands) Networking (for esams) 2006?


Cluster Location Usage Years
Pmtpa cluster‎ Tampa, Florida (United States) Application services 2004 – 2014
Lopar cluster‎ Paris (France) Caching 2005 – 2008?
Yaseo cluster Seoul (South Korea) zhwiki and kowiki 2005 – 2009[4][5]
San Diego "cluster" San Diego (United States) Database and webserver 2001 – 2004

See also


  1. 1.0 1.1 WMF Infrastructure Quarterly Review 2015 FQ1, page 66 "TechOps - Appendix", 15 October 2015
  2. 2.0 2.1 T91077 EQDFW/EQORD Deployment, Wikimedia Phabricator, 27 February 2015
  3. "ULSFO going online", Deployments calendar, Week of 3 February 2014.
  4. Start unknown. Oldest mention in Server admin log, 10 September 2010.
  5. "Decommissioned all yaseo servers", Server admin log, 23 July 2009.