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WANdisco, plc.
Public limited company
Traded as LSEWAND
Industry Big data
Configuration management
Founded San Ramon, California, U.S. (2005 (2005))
Founder David Richards, Dr. Yeturu Aahlad, Jim Campigli[1]
Headquarters Sheffield, U.K./San Ramon, U.S.
Key people
Paul Walker (Chairman)
David Richards (CEO)
Paul Harrison (CFO)
Yeturu Aahlad (Inventor)
Products Hadoop
Number of employees
circa 200
Website www.wandisco.com

WANdisco, plc., dually headquartered in Sheffield, England and San Ramon, California in the US, is a public software company specialized in the area of distributed computing. It is a corporate contributor to Hadoop, Subversion and other open source projects.


The name WANdisco is an acronym for wide area network distributed computing. Initially offering a replicated multisite product for the Concurrent Versions System (CVS), this was expanded to include CVSNT, Apache Subversion, JIRA, Git and Apache Hadoop.[2]


  • Founded by David Richards, Yeturu Aahlad and James Campigli[3]
  • CVS Multisite product launched


  • Subversion Multisite product launched [4]
  • Access Control for CVS and Subversion products launched [5]


  • Subversion Support Services launched [6]


  • Named in the SD Times 100 List [7]
  • Opened European Software Development Centre in Sheffield, UK [8]


  • Awarded £500,000 grant by Yorkshire Forward to support expansion of the Sheffield, UK location [9]
  • Forrester Research published Total Economic Impact study which showed a 167% return on investment and nine month payback period for WANdisco product [10]


  • Hyrum Wright, Subversion project's release manager, joined as director of Opensource; other core Subversion Opensource Committers hired [11]
  • Inaugural Subversion Live, the first Subversion user conference, was hosted in Silicon Valley, Boston, and London [12]



  • 300% oversubscribed IPO on the London Stock Exchange raised $24m [16]
  • Additional software development centre opened in Belfast, Northern Ireland [17]
  • Acquired SmartSVN Subversion Client [18]
  • Acquired Altostor, a big data company [19]
  • Git Multisite and support products launched [20]



WANdisco's Distributed Coordination Engine (DConE) is the shared component for WANdisco clustering products.[28] The DConE system allows multiple instances of the same application to operate on independent hardware without sharing any resources. All of the application servers are kept in synchronisation by DConE regardless of whether the servers are on the same LAN or globally separated and accessible only over a wide area network (WAN).

WANdisco's replication technology was the work of Yeturu Aahlad who had previously worked for Sun, Netscape and IBM and was involved in developing the CORBA Framework.[29] Aahlad theorized a model for effective Active replication over a WAN. In the development of DConE, WANdisco has taken the Paxos algorithm as a baseline and added significant innovations relevant to mission-critical high, transaction volume distributed environments.

WANdisco provides replicated products for CVS, Apache Subversion, Git and Apache Hadoop. In addition support, consultancy and training services are offered. In 2011 WANdisco announced uberSVN, a deployment of Apache Subversion which included a web based management console and the ability to add additional application lifecycle management features.[30] The uberSVN download was available through mid-2013.[31]

The company's website lists companies such as AT&T, APC, Avaya, Bally Technologies, Thales Group, Verisign, Sun Microsystems, Honda, NTT, Intel, John Deere, Disney, Symantec, Barclays, Merrill Lynch and Motorola.[32]

Open source contributions[edit]

In September 2013 WANDisco announced it is an official sponsor of the UC Berkeley AMPLab, a five-year collaborative effort at the University of California, Berkeley.[33]


WANdisco has three Apache Hadoop committers on staff: Konstantin Shvachko, Jagane Sundar[19] and Konstantin Boudnik. In February 2013 WANdisco released a free distribution of Hadoop containing additional components developed by WANdisco.[34]


WANdisco's involvement in the Apache Subversion open source project started in 2008[35] and they employ five contributors to work on the Subversion project with two working full-time. Namely Philip Martin, Julian Foad, Branko Čibej, Stefan Fuhrmann and Ben Reser, all of whom were Subversion contributors prior to working at WANdisco.[36]

WANdisco also runs an annual conference for the Apache Subversion community, SVN Live, featuring core committers for the SVN project.

Server binaries[edit]

WANdisco provides Subversion binary downloads for Windows, Debian, CentOS, Solaris (operating system), Ubuntu (operating system) and RHEL via its website.[37] These binaries use the default package management system for each Linux distribution.

Project announcements[edit]

In December 2010, WANdisco announced its intention to develop some features for the Subversion project,[38] specifically aimed at improving branching and merging functionality.

The Apache Foundation and some Subversion developers said the announcement contained unfounded claims and insinuations about community involvement and the lack of development on these features.[39] According to Apache, these features were already being worked on at the time.[35][40] David Richards from WANdisco clarified this position to the Subversion community[41] and followed up by announcing WANdisco's sponsorship and ongoing support for the work of the Apache Software Foundation.[42]

Apache Bloodhound[edit]

Apache Bloodhound is a software development collaboration tool, based on the Trac project. It includes an Apache Subversion repository browser, wiki, and defect tracker. In addition to the standard Trac installation, Bloodhound incorporates a number of popular modules into the core distribution, and includes additional improvements developed (as plugins) outside the Trac project. WANdisco maintains a staff of four full-time developers on this project.[citation needed]


  1. ^ "WANdisco Admission Document" (PDF). Retrieved 28 May 2012. 
  2. ^ "WANdisco for CVS, Subversion and CVSNT". Cmcrossroads.com. 2006-06-27. Retrieved 2009-11-15. 
  3. ^ "WANdisco Plc WAND First Day of Dealings". Bloomberg. 1 June 2012. Retrieved 12 October 2013. 
  4. ^ "WANdisco Announces New High Availability Disaster Recovery Solution for CVS, Subversion and CVSNT; New WANdisco HADR Product Delivers High Availability, Continuous Real-time Backup, and Automated Disaster Recovery Over a LAN or WAN". Retrieved 15 October 2013. 
  5. ^ "WANdisco Releases New Security Features for Multi-Site Development and Sarbanes-Oxley Compliance". 1 March 2006. Retrieved 15 October 2013. 
  6. ^ "WANdisco Announces Support Services for Subversion". 5 April 2007. Retrieved 15 October 2013. 
  7. ^ "Stars of the SD Times 100's past". Retrieved 15 October 2013. 
  8. ^ "WANdisco on move to City". 28 Nov 2008. Retrieved 15 October 2013. 
  9. ^ "WANdisco to v". 21 May 2010. Retrieved 15 October 2013. 
  10. ^ "Forrester Report Reveals 167% ROI and Payback Period of 9 Months for WANdisco`s Subversion MultiSite". 5 Nov 2009. Retrieved 15 October 2013. 
  11. ^ "WANdisco Plows Subversion Support Revenue Back Into the Open Source Project by Employing Yet Another Core Developer". 23 June 2010. Retrieved 15 October 2013. 
  12. ^ "World’s Largest Software Development Shops Set to Keynote at Subversion Live Conferences". 16 August 2010. Retrieved 15 October 2013. 
  13. ^ "WANdisco becomes Apache bronze sponsor". 1 Feb 2011. Retrieved 15 October 2013. 
  14. ^ "WANdisco Gets Spot as Finalist for 2011 Red Herring Top 100 North America Award.". 25 May 2011. Retrieved 15 October 2013. 
  15. ^ "How WANdisco made its Mark". 17 August 2011. Retrieved 15 October 2013. 
  16. ^ "Investors scramble for a share as WANdisco float a big success". Yorkshire Post. 1 June 2012. Retrieved 6 June 2012. 
  17. ^ "WANdisco plc establishes new software development centre in Belfast – 36 new jobs". 20 September 2012. Retrieved 15 October 2013. 
  18. ^ "WANdisco acquires user-interface". 17 September 2012. Retrieved 15 October 2013. 
  19. ^ a b Ingred Lungren (19 November 2012). "Big Data Consolidation: WANdisco Buys AltoStor For $5.1M To Beef Up Its Apache Hadoop Cred". Retrieved 12 October 2013. 
  20. ^ "WANdisco launches software solution". July 17, 2013. Retrieved 15 October 2013. 
  21. ^ "WANdisco sets up new Chinese operation". 22 Jan 2013. Retrieved 15 October 2013. 
  22. ^ "WANdisco Releases Free Hadoop Distro". 11 February 2013. Retrieved 15 October 2013. 
  23. ^ "Sheffield Wednesday: Fan David proud to back Owls". The Star. 1 August 2013. Retrieved 12 October 2013. 
  24. ^ "CFO Paul Harrison Leaves Giant Sage, Joins Tiny WANdisco". 9 May 2013. Retrieved 15 October 2013. 
  25. ^ "WANdisco raises £19m from investors". 9 May 2013. Retrieved 15 October 2013. 
  26. ^ "Britain's WANdisco says Hortonworks tie-up boosts its "big data" role". 26 September 2013. Retrieved 15 October 2013. 
  27. ^ "Sheffield’s WANdisco picks up national AIM award". 10 October 2013. Retrieved 15 October 2013. 
  28. ^ "The Distributed Coordination Engine (DConE)". White paper (WANdisco). 
  29. ^ "Methods and apparatus for managing deactivation and shutdown of a server". White paper (US Patent Office). 
  30. ^ Adrian Bridgwater (22 April 2011). "WANdisco Do-Si-Dos Apache Subversion With uberSVN". Dr. Dobb's. Retrieved 12 October 2013. 
  31. ^ "uberSVN: The Open ALM Platform for Subversion". Archived from the original on 17 July 2013. Retrieved 12 October 2013. 
  32. ^ "WANdisco Customers". Wandisco.com. Retrieved 2009-11-15. 
  33. ^ "WANdisco Announces Official Sponsorship of UC Berkeley AMPLab". Press release (WANdisco). 5 September 2013. Retrieved 12 October 2013. 
  34. ^ Maria Deutscher (2013-02-11). "WANdisco Releases Free Hadoop Distro". 
  35. ^ a b "Apache Subversion To WANdisco, Inc: Get Real", Slashdot.org, 2011-01-04, retrieved 2011-02-20 
  36. ^ http://www.wandisco.com/news/press-releases/wandisco-sponsors-apache-software-foundation-second-year-and-welcomes-core-subversion-developers
  37. ^ http://subversion.wandisco.com/component/content/article/2-news/51-subversion-169-installers-released.html
  38. ^ "WANdisco Shakes Up Software Change Management With Overhaul of Subversion" (Press release). San Ramon, CA. 201-012-20.  Check date values in: |date= (help)
  39. ^ Ben Collins-Sussman, WANdisco, ur doin it rong, retrieved 2011-02-20, He’s insulted two-thirds of the active developers (and embarrassed his own employees) by declaring them to be incompetant stewards. There’s no simpler way to garner hate and come off like an ass than to say “everyone move aside and let me fix this” 
  40. ^ Apache Software Foundation (2011-01-03), "Apache Subversion to WANdisco: +1 on the code contributions, −1 on the attitude", The Apache Software Foundation Blog, retrieved 2011-02-20, WANdisco's false implication that it is in some kind of steering position in Subversion development discredits the efforts of other contributors and companies. 
  41. ^ "Subversion Politics", WANdisco Blog, 2011-01-04 
  42. ^ "We are now a sponsor of Apache!", WANdisco Blog, 2011-02-01 

External links[edit]