HAProxy

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HAProxy
Original author(s)Willy Tarreau
Initial releaseDecember 16, 2001; 17 years ago (2001-12-16)
Stable release
2.0.0 / June 16, 2019; 1 day ago (2019-06-16)
Preview release
2.1-dev0 / June 16, 2019; 1 day ago (2019-06-16)
Repository Edit this at Wikidata
Written inC
Operating systemLinux, FreeBSD, OpenBSD, Solaris (8/9/10), AIX (5.1–5.3), macOS, Cygwin
LicenseGNU General Public License Version 2
Websitewww.haproxy.org

HAProxy is free, open source software that provides a high availability load balancer and proxy server for TCP and HTTP-based applications that spreads requests across multiple servers.[1] It is written in C[2] and has a reputation for being fast and efficient (in terms of processor and memory usage).[3]

HAProxy is used by a number of high-profile websites including GoDaddy, GitHub, Bitbucket,[4] Stack Overflow,[5] Reddit, Speedtest.net, Tumblr, Twitter[6][7] and Tuenti[8] and is used in the OpsWorks product from Amazon Web Services.[9]

History[edit]

HAProxy was written in 2000[10] by Willy Tarreau,[11] a core contributor to the Linux kernel,[12] who still maintains the project.

In 2013, the company HAProxy Technologies, LLC was created[13] to continue developing the software in addition to contributions from the open-source community. The company provides a commercial offering, HAProxy Enterprise and appliance-based application-delivery controllers named ALOHA. The company provides technical support and additional modules that extend the functionality of HAProxy.

Features[edit]

HAProxy has the following features:

HAProxy Community vs HAProxy Enterprise[edit]

HAProxy Enterprise Edition is an enterprise-class version of HAProxy that includes a robust and cutting-edge code base, enterprise suite of add-ons, expert support, and professional services. At its core, it incorporates feature backports from the HAProxy development branch for customers who require immediate access to the latest functionality in a hardened version of code.[17]

ALOHA[edit]

HAProxy Technologies’ ALOHA is a plug-and-play load-balancing appliance that can be deployed in any environment. ALOHA provides a graphical interface and a templating system that can be used to deploy and configure the appliance.[18] Its main intention is to be a direct competitor to Hardware Load Balancing boxes/appliances to companies that still provide separate appliance load balancers, such as F5 Networks.

Versions[edit]

HAProxy has had the following version releases:

Version Date
1.0 16 Dec 2001
1.1 10 Mar 2002
1.2 9 Sep 2003
1.3 14 Mar 2016
1.4 14 Mar 2016
1.5 25 Dec 2016
1.6 2 Jan 2018
1.7 30 Apr 2018
1.8 20 Sep 2018
1.9 19 Dec 2018
2.0 16 Jun 2019

Performance[edit]

Servers equipped with a dual-core Opteron or Xeon processor generally achieve between 15000 and 40000 hits per second, and have no trouble saturating a 2 Gbit/sec connection under Linux.[19]

Similar software[edit]

See also[edit]

References[edit]

  1. ^ "MySQL Load Balancing with HAProxy". Severalnines AB. 2011. Retrieved 19 February 2013.
  2. ^ "HAProxy on Freecode". Retrieved 5 April 2013.
  3. ^ "Nuts & Bolts: HAproxy". Retrieved 8 April 2013.
  4. ^ "The inner guts of Bitbucket". Retrieved 26 February 2015.
  5. ^ "What it takes to run Stack Overflow". Retrieved 22 November 2013.
  6. ^ "HAProxy: they use it!". Retrieved 5 April 2013.
  7. ^ "List of sites using HAProxy". Archived from the original on 10 June 2013. Retrieved 5 April 2013.
  8. ^ "Tuenti+WebRTC (Voip2day 2014)".
  9. ^ "HAProxy layer - AWS Opsworks". Retrieved 5 April 2013.
  10. ^ "HAProxy: design choices and history". Retrieved 5 April 2013.
  11. ^ "Willy Tarreau: About me". Retrieved 5 April 2013.
  12. ^ "LKML: Willy Tarreau: [ANNOUNCE] Linux 2.4.37.11". Retrieved 5 April 2013.
  13. ^ "HAProxy Technologies overview". Retrieved 21 Oct 2018.
  14. ^ Corbett, Daniel (2018-12-19). "HAProxy 1.9 Has Arrived". HAProxy Technologies. Retrieved 2019-01-22.
  15. ^ Mhedhbi, Moemen (2018-05-31). "Hitless Reloads / Hot Restarts with HAProxy!". HAProxy Technologies. Retrieved 2019-01-22.
  16. ^ Ramirez, Nick (2019-01-16). "HAProxy 1.9.2 Adds gRPC Support". HAProxy Technologies. Retrieved 2019-01-22.
  17. ^ "HAProxy Technologies Announces Improvements to Performance, Management, and Security for Enterprises". Retrieved 23 Oct 2018.
  18. ^ "ALOHA Hardware Appliance Application Delivery Controller". Retrieved 23 Oct 2018.
  19. ^ haproxy.1wt.eu#plat

External links[edit]