HAProxy - Load balancer
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William Lallemand d172f7b923 BUG/MINOR: mworker: only match worker processes when looking for unspawned proc
In master-worker mode, when a freshly forked worker looks up its own
entry in proc_list to send its "READY" status to the master, the loop
was breaking on the first process with pid == -1 regardless of its
type. If a non-worker process (e.g. a master or program) also had
pid == -1, the wrong entry could be selected, causing send_fd_uxst()
to use an invalid ipc_fd.

Fix this by adding a PROC_O_TYPE_WORKER check to the loop condition,
and add a BUG_ON() assertion to catch any case where the loop exits
without finding a valid worker entry.

Must be backported to 3.1.
2026-03-13 09:13:11 +01:00
.github CI: remove redundant "halog" compilation 2026-02-23 11:11:26 +01:00
addons MINOR: promex: use watcher to iterate over backend instances 2026-02-27 10:28:24 +01:00
admin BUG/MINOR: admin: haproxy-reload rename -vv long option 2026-03-08 01:37:56 +01:00
dev DEV: term-events: Fix hanshake events decoding 2026-02-18 09:44:15 +01:00
doc DOC: internals: short explanation on how thread_exec_ctx works 2026-03-12 18:28:09 +01:00
examples MINOR: mailers: warn if mailers are configured but not actually used 2025-06-27 16:41:18 +02:00
include MINOR: activity: raise the default number of memprofile buckets to 4k 2026-03-12 18:06:38 +01:00
reg-tests MINOR: jwt: Manage ec certificates in jwt_decrypt_cert 2026-03-10 14:58:47 +01:00
scripts SCRIPTS: git-show-backports: add a restart-from-last option 2026-03-09 15:36:05 +01:00
src BUG/MINOR: mworker: only match worker processes when looking for unspawned proc 2026-03-13 09:13:11 +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-dev6 2026-03-05 15:55:28 +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: fix range build without test command 2026-03-12 18:06:37 +01:00
README.md DOC: remove openssl no-deprecated CI image 2026-02-19 10:39:23 +01:00
SUBVERS BUILD: use format tags in VERDATE and SUBVERS files 2013-12-10 11:22:49 +01:00
VERDATE [RELEASE] Released version 3.4-dev6 2026-03-05 15:55:28 +01:00
VERSION [RELEASE] Released version 3.4-dev6 2026-03-05 15:55:28 +01:00

HAProxy

alpine/musl AWS-LC 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.