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HAProxy - Load balancer
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Amaury Denoyelle f3003d1508 BUG/MAJOR: Revert "MEDIUM: mux-quic: add BUG_ON if sending on locally closed QCS" 
This reverts commit 235e8f1afd.

Prior to the above commit, snd_buf callback for QUIC MUX was able to
deal with data even after stream closure. The excess was simply
discarded, as no STREAM frame can be emitted after FIN/RESET_STREAM.
This code was later removed and replaced by a BUG_ON() to ensure snd_buf
is never called after stream closure.

However, this approach is too strict. Indeed, there is nothing in the
haproxy stream architecture which forbids this scheduling, in part
because QUIC MUX is the sole responsible of the stream closure. As such,
it is preferable to revert to the old code to prevent any triggering of
a BUG_ON() failure.

Note that nego_ff does not implement data draining if called after
stream closure. This will be done in a future patch.

Thanks to Mike Walker for his investigation on the subject.

This must be backported up to 2.8.
2026-02-17 18:18:44 +01:00
.github CI: github: fix vtest.yml with "not quictls" 2026-01-19 13:22:10 +01:00
addons CLEANUP: deviceatlas: add unlikely hints and minor code tidying 2026-02-14 15:49:00 +01:00
admin MEDIUM: systemd: implement directory loading 2026-01-16 09:55:33 +01:00
dev DEV: gdb: use unsigned longs to display pools memory usage 2026-02-16 11:07:23 +01:00
doc MINOR: jwt: Add new jwt_decrypt_jwk converter 2026-02-12 16:31:27 +01:00
examples MINOR: mailers: warn if mailers are configured but not actually used 2025-06-27 16:41:18 +02:00
include BUG/MAJOR: Revert "MEDIUM: mux-quic: add BUG_ON if sending on locally closed QCS" 2026-02-17 18:18:44 +01:00
reg-tests MINOR: startup: Add HAVE_WORKING_TCP_MD5SIG in haproxy -vv 2026-02-12 18:02:19 +01:00
scripts SCRIPTS: build-vtest: allow to set a TMPDIR and a DESTDIR 2026-02-12 18:48:09 +01:00
src BUG/MAJOR: Revert "MEDIUM: mux-quic: add BUG_ON if sending on locally closed QCS" 2026-02-17 18:18:44 +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-dev4 2026-02-04 14:59:47 +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 DEV: gdb: add a utility to find the post-mortem address from a core 2026-02-14 14:46:33 +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-dev4 2026-02-04 14:59:47 +01:00
VERSION [RELEASE] Released version 3.4-dev4 2026-02-04 14:59:47 +01:00

README.md

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.