haproxy

mirror of http://git.haproxy.org/git/haproxy.git/ synced 2025-03-06 19:38:22 +00:00

haproxy public development tree

Go to file

Willy Tarreau 8ae8c48eb0 MEDIUM: fwlc: re-enable per-server queuing up to maxqueue Leastconn has the nice propery of being able to sort servers by their current usage. It's really a shame to force all requests into the backend queue when the algo would be able to also consider their current queue. In order not to change existing behavior but extend it, this patch allows leastconn to elect servers which are already full if they have an explicitly configured maxqueue setting above zero and their queue hasn't reached that threshold. This will significantly reduce the pressure in the backend queue when queuing a lot with lots of servers. A test on 8 threads with 100 servers configured with maxconn 1 jumped from 165krps to 330krps with maxqueue 15 with this patch. This partially undoes commit `82cd5c13a` ("OPTIM: backend: skip LB when we know the backend is full") but allows to scale much better even by setting a single-digit maxqueue value. Some better heuristics could be used to maintain the behavior of the bypass in the patch above, consisting in keeping it if it's known that there is no server with a configured maxqueue in the farm (or in the backend).		2020-10-22 18:30:25 +02:00
.github	DOC: overhauling github issue templates	2020-08-17 20:29:27 +02:00
contrib	CONTRIB: tcploop: remove unused local variables in tcp_pause()	2020-10-22 05:17:08 +02:00
doc	MEDIUM: fwlc: re-enable per-server queuing up to maxqueue	2020-10-22 18:30:25 +02:00
examples
include	OPTIM: queue: don't call pendconn_unlink() when the pendconn is not queued	2020-10-22 17:32:28 +02:00
reg-tests	REGTEST: cache: Add if-none-match test case	2020-10-22 16:10:20 +02:00
scripts	CI: travis-ci: replace not defined SSL_LIB, SSL_INC for BotringSSL builds	2020-10-11 21:12:33 +02:00
src	MEDIUM: fwlc: re-enable per-server queuing up to maxqueue	2020-10-22 18:30:25 +02:00
tests	MEDIUM: config: remove the deprecated and dangerous global "debug" directive	2020-10-09 19:18:45 +02:00
.cirrus.yml
.gitattributes	MINOR: Commit .gitattributes	2020-09-05 16:21:59 +02:00
.gitignore	CLEANUP: Update .gitignore	2020-09-12 13:11:24 +02:00
.travis.yml	CI: travis-ci: help Coverity to detect BUG_ON() as a real stop	2020-10-09 09:55:53 +02:00
BRANCHES
CHANGELOG	[RELEASE] Released version 2.3-dev7	2020-10-17 10:31:50 +02:00
CONTRIBUTING
INSTALL	BUILD: makefile: Update feature flags for NetBSD	2020-10-09 09:53:56 +02:00
LICENSE
MAINTAINERS
Makefile	BUILD: makefile: add entries to build common debugging tools	2020-10-22 05:17:08 +02:00
README
ROADMAP
SUBVERS
VERDATE	[RELEASE] Released version 2.3-dev7	2020-10-17 10:31:50 +02:00
VERSION	[RELEASE] Released version 2.3-dev7	2020-10-17 10:31:50 +02:00

README

The HAProxy documentation has been split into a number of different files for
ease of use.

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 :

  - doc/intro.txt for a quick introduction on HAProxy
  - doc/configuration.txt for the configuration's reference manual
  - doc/lua.txt for the Lua's reference manual
  - doc/SPOE.txt for how to use the SPOE engine
  - doc/network-namespaces.txt for how to use network namespaces under Linux
  - doc/management.txt for the management guide
  - doc/regression-testing.txt for how to use the regression testing suite
  - doc/peers.txt for the peers protocol reference
  - doc/coding-style.txt for how to adopt HAProxy's coding style
  - doc/internals for developer-specific documentation (not all up to date)