HAProxy - Load balancer
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Willy Tarreau 5904f8279b
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MINOR: mux-h1: perform a graceful close at 75% glitches threshold
This avoids hitting the hard wall for connections with non-compliant
peers that are accumulating errors. We recycle the connection early
enough to permit to reset the counter. Example below with a threshold
set to 100:

Before, 1% errors:
  $ h1load -H "Host : blah" -c 1 -n 10000000 0:4445
  #     time conns tot_conn  tot_req      tot_bytes    err  cps  rps  bps   ttfb
           1     1     1039   103872        6763365   1038 1k03 103k 54M1 9.426u
           2     1     2128   212793       14086140   2127 1k08 108k 58M5 8.963u
           3     1     3215   321465       21392137   3214 1k08 108k 58M3 8.982u
           4     1     4307   430684       28735013   4306 1k09 109k 58M6 8.935u
           5     1     5390   538989       36016294   5389 1k08 108k 58M1 9.021u

After, no more errors:
  $ h1load -H "Host : blah" -c 1 -n 10000000 0:4445
  #     time conns tot_conn  tot_req      tot_bytes    err  cps  rps  bps   ttfb
           1     1     1509   113161        7487809      0 1k50 113k 59M9 8.482u
           2     1     3002   225101       15114659      0 1k49 111k 60M9 8.582u
           3     1     4508   338045       22809911      0 1k50 112k 61M5 8.523u
           4     1     5971   447785       30286861      0 1k46 109k 59M7 8.772u
           5     1     7472   560335       37955271      0 1k49 112k 61M2 8.537u
2025-12-20 19:29:37 +01:00
.github CI: github: use git prefix for openssl-master.yml 2025-12-18 16:13:04 +01:00
addons MINOR: applet: Add a flag to know an applet is using HTX buffers 2025-08-25 11:11:05 +02:00
admin ADMIN: dump-certs: let dry-run compare certificates 2025-11-20 16:50:20 +01:00
dev CLEANUP: use the automatic alignment feature 2025-12-09 17:14:58 +01:00
doc MINOR: mux-h1: perform a graceful close at 75% glitches threshold 2025-12-20 19:29:37 +01:00
examples MINOR: mailers: warn if mailers are configured but not actually used 2025-06-27 16:41:18 +02:00
include MINOR: tools: add a secure implementation of memset 2025-12-19 17:42:57 +01:00
reg-tests REGTESTS: quic: fix a TLS stack usage 2025-12-15 09:44:42 +01:00
scripts REGTESTS: fix error when no test are skipped 2025-12-18 17:26:50 +01:00
src MINOR: mux-h1: perform a graceful close at 75% glitches threshold 2025-12-20 19:29:37 +01:00
tests TESTS: quic: add unit-tests for QUIC TX part 2025-09-08 14:49:03 +02:00
.cirrus.yml CI: cirrus-ci: bump FreeBSD image to 14-3 2025-10-09 14:06:48 +02:00
.gitattributes MINOR: Configure the cpp userdiff driver for *.[ch] in .gitattributes 2021-02-22 18:17:57 +01:00
.gitignore MINOR: tevt/dev: Add term_events tool 2025-01-31 10:41:50 +01:00
.mailmap DOC: update Tim's address in .mailmap 2021-09-16 09:14:14 +02:00
.travis.yml MEDIUM: mworker: remove USE_SYSTEMD requirement for -Ws 2024-11-20 12:07:38 +01:00
BRANCHES DOC: clarify the experimental status for certain features 2025-10-17 18:41:13 +02:00
BSDmakefile BUILD: makefile: commit the tiny FreeBSD makefile stub 2023-05-24 17:17:36 +02:00
CHANGELOG [RELEASE] Released version 3.4-dev1 2025-12-10 16:52:30 +01:00
CONTRIBUTING CLEANUP: assorted typo fixes in the code and comments 2025-04-02 11:12:20 +02:00
INSTALL MINOR: version: mention that it's development again 2025-11-26 16:11:47 +01:00
LICENSE LICENSE: add licence exception for OpenSSL 2012-09-07 13:52:26 +02:00
MAINTAINERS MAJOR: spoe: Let the SPOE back into the game 2024-05-22 09:04:38 +02:00
Makefile BUILD: Makefile: remove halog from install-admin 2025-11-19 16:52:20 +01:00
README.md DOC: change the link to the FreeBSD CI in README.md 2024-06-03 15:21:29 +02:00
SUBVERS BUILD: use format tags in VERDATE and SUBVERS files 2013-12-10 11:22:49 +01:00
VERDATE [RELEASE] Released version 3.4-dev1 2025-12-10 16:52:30 +01:00
VERSION [RELEASE] Released version 3.4-dev1 2025-12-10 16:52:30 +01:00

HAProxy

alpine/musl AWS-LC openssl no-deprecated Illumos NetBSD FreeBSD VTest

HAProxy logo

HAProxy is a free, very fast and reliable reverse-proxy offering high availability, load balancing, and proxying for TCP and HTTP-based applications.

Installation

The INSTALL file describes how to build HAProxy. A list of packages is also available on the wiki.

Getting help

The discourse and the mailing-list are available for questions or configuration assistance. You can also use the slack or IRC channel. Please don't use the issue tracker for these.

The issue tracker is only for bug reports or feature requests.

Documentation

The HAProxy documentation has been split into a number of different files for ease of use. It is available in text format as well as HTML. The wiki is also meant to replace the old architecture guide.

Please refer to the following files depending on what you're looking for:

  • INSTALL for instructions on how to build and install HAProxy
  • BRANCHES to understand the project's life cycle and what version to use
  • LICENSE for the project's license
  • CONTRIBUTING for the process to follow to submit contributions

The more detailed documentation is located into the doc/ directory:

License

HAProxy is licensed under GPL 2 or any later version, the headers under LGPL 2.1. See the LICENSE file for a more detailed explanation.