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Aurelien DARRAGON c454296f07 OPTIM: sink: balance applets accross threads
Most of the time all sink applets (which are responsible for relaying
messages from the ring to the tcp servers endpoints) would end up being
assigned to the first available thread (tid:0), resulting in excessive CPU
usage on a single thread when multiple sink servers were defined (no
matter if they were defined over multiple "ring" sections) and significant
message load was pushed through them over the ring API.

This patch is similar to 34e4085f ("MEDIUM: peers: Balance applets across
threads") but for sinks. We use a slightly different approach, which is to
elect a random thread instead of picking the one with leasts applets. This
proves to be already sufficient to alleviate the issue.

In the case we want to have a better load distribution we should consider
breaking existing connections to reestablish them on a new thread when we
find out that they start monopolizing a cpu thread (ie: after a certain
amount of messages for instance). Also check tcpchecks migrating model for
inspiration.

This patch depends on the previous one ("MEDIUM: sink: start applets
asynchronously").
2024-07-17 16:45:49 +02:00
.github CI: weekly QUIC Interop: try to fix private image 2024-07-10 09:43:02 +02:00
addons BUG/MINOR: promex: Remove Help prefix repeated twice for each metric 2024-07-01 10:50:27 +02:00
admin ADMIN: acme.sh: remove the old acme.sh code 2024-05-31 13:37:47 +02:00
dev MEDIUM: mux-spop: Introduce the SPOP multiplexer 2024-07-12 15:27:04 +02:00
doc DOC: spoe: Update SPOE documentation to reflect recent refactoring 2024-07-12 16:38:49 +02:00
examples CLEANUP: assorted typo fixes in the code and comments 2023-11-23 16:23:14 +01:00
include MINOR: debug: use LIM2A to show limits 2024-07-16 14:04:41 +02:00
reg-tests MEDIUM: check/spoe: Use SPOP multiplexer to perform SPOP health-checks 2024-07-12 15:27:04 +02:00
scripts SCRIPTS: create-release: no more need to skip architecture.txt 2024-07-10 15:38:45 +02:00
src OPTIM: sink: balance applets accross threads 2024-07-17 16:45:49 +02:00
tests MAJOR: import: update mt_list to support exponential back-off (try #2) 2024-07-09 16:46:38 +02:00
.cirrus.yml CI: FreeBSD: upgrade image, packages 2024-06-04 11:19:00 +02:00
.gitattributes
.gitignore CONTRIB: Add vi file extensions to .gitignore 2023-06-02 18:14:34 +02:00
.mailmap DOC: update Tim's address in .mailmap 2021-09-16 09:14:14 +02:00
.travis.yml CI: travis-ci: temporarily disable arm64 builds 2021-08-07 07:28:15 +02:00
BRANCHES
BSDmakefile BUILD: makefile: commit the tiny FreeBSD makefile stub 2023-05-24 17:17:36 +02:00
CHANGELOG [RELEASE] Released version 3.1-dev3 2024-07-10 15:39:36 +02:00
CONTRIBUTING CLEANUP: assorted typo fixes in the code and comments 2021-08-16 12:37:59 +02:00
INSTALL DOC: install: don't reference removed CPU arg 2024-07-16 20:06:06 +02:00
LICENSE
MAINTAINERS MAJOR: spoe: Let the SPOE back into the game 2024-05-22 09:04:38 +02:00
Makefile MEDIUM: mux-spop: Introduce the SPOP multiplexer 2024-07-12 15:27:04 +02:00
README.md DOC: change the link to the FreeBSD CI in README.md 2024-06-03 15:21:29 +02:00
SUBVERS
VERDATE [RELEASE] Released version 3.1-dev3 2024-07-10 15:39:36 +02:00
VERSION [RELEASE] Released version 3.1-dev3 2024-07-10 15:39:36 +02:00

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.