HAProxy

HAProxy
Original author(s) Willy Tarreau
Stable release 1.5.11 / February 1, 2015
Preview release 1.6-dev0 / June 19, 2014
Written in C
Operating system Linux, FreeBSD, OpenBSD, Solaris (8/9/10), AIX (5.1-5.3)
License GNU General Public License Version 2
Website www.haproxy.org

HAProxy is a free, open source high availability solution, providing load balancing and proxying for TCP and HTTP-based applications by spreading 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 GitHub, Bitbucket,[4] Stack Overflow,[5] Reddit, Tumblr, and Twitter[6][7] and is used in the OpsWorks product from Amazon Web Services.[8]

History

HAProxy was written in 2000[9] by Willy Tarreau,[10] a core contributor to the Linux kernel[11] who still maintains the project.

Performance

1U 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.[12]

See also

References

  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". Retrieved 5 April 2013.
  8. ↑ "HAProxy layer - AWS Opsworks". Retrieved 5 April 2013.
  9. ↑ "HAProxy: design choices and history". Retrieved 5 April 2013.
  10. ↑ "Willy Tarreau: About me". Retrieved 5 April 2013.
  11. ↑ ,"LKML: Willy Tarreau: [ANNOUNCE] Linux 2.4.37.11". Retrieved 5 April 2013.
  12. ↑ haproxy.1wt.eu#plat

External links