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HAProxy - Load balancer
10730 commits 28 branches 411 tags 329 MiB
C 98.1%
Shell 0.9%
Makefile 0.5%
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Willy Tarreau bbb5f1d6d2 BUG/MAJOR: idle conns: schedule the cleanup task on the correct threads 
The idle cleanup tasks' masks are wrong for threads 32 to 64, which
causes the wrong thread to wake up and clean the connections that it
does not own, with a risk of crash or infinite loop depending on
concurrent accesses. For thread 32, any thread between 32 and 64 will
be woken up, but for threads 33 to 64, in fact threads 1 to 32 will
run the task instead.

This issue only affects deployments enabling more than 32 threads. While
is it not common in 1.9 where this has to be explicit, and can easily be
dealt with by lowering the number of threads, it can be more common in
2.0 since by default the thread count is determined based on the number
of available processors, hence the MAJOR tag which is mostly relevant
to 2.x.

The problem was first introduced into 1.9-dev9 by commit 0c18a6fe3
("MEDIUM: servers: Add a way to keep idle connections alive.") and was
later moved to cfgparse.c by commit 980855bd9 ("BUG/MEDIUM: server:
initialize the orphaned conns lists and tasks at the end").

This patch needs to be backported as far as 1.9, with care as 1.9 is
slightly different there (uses idle_task[] instead of idle_conn_cleanup[]
like in 2.x).
2019-10-18 09:04:02 +02:00
.github/ISSUE_TEMPLATE DOC: Add 'Question.md' issue template, discouraging asking questions 2019-08-02 19:11:41 +02:00
contrib DOC: fix typo in Prometheus exporter doc 2019-10-09 04:38:15 +02:00
doc BUG/MINOR: tcp: Don't alter counters returned by tcp info fetchers 2019-10-17 15:20:06 +02:00
ebtree BUILD: ebtree: make eb_is_empty() and eb_is_dup() take a const 2019-10-02 15:24:19 +02:00
examples CLEANUP: removed obsolete examples an move a few to better places 2019-06-15 21:25:06 +02:00
include BUG/MEDIUM: tasklet: properly compute the sleeping threads mask in tasklet_wakeup() 2019-10-18 09:00:26 +02:00
reg-tests REGTESTS: Adapt proxy_protocol_random_fail.vtc to match normalized URI too 2019-10-14 22:28:50 +02:00
scripts BUILD: CI: install golang-1.13 when building BoringSSL 2019-09-17 13:52:39 +02:00
src BUG/MAJOR: idle conns: schedule the cleanup task on the correct threads 2019-10-18 09:04:02 +02:00
tests TESTS: Add a stress-test for mt_lists. 2019-09-23 18:16:08 +02:00
.cirrus.yml BUILD: CI: skip reg-tests/connection/proxy_protocol_random_fail.vtc on CentOS 6 2019-09-08 12:10:32 +02:00
.gitignore DOC: create a BRANCHES file to explain the life cycle 2019-06-15 22:00:14 +02:00
.travis.yml BUILD: travis-ci: limit build to branches "master" and "next" 2019-10-17 06:53:55 +02:00
BRANCHES DOC: create a BRANCHES file to explain the life cycle 2019-06-15 22:00:14 +02:00
CHANGELOG [RELEASE] Released version 2.1-dev2 2019-10-01 18:13:09 +02:00
CONTRIBUTING DOC: improve the wording in CONTRIBUTING about how to document a bug fix 2019-07-26 15:46:21 +02:00
INSTALL MINOR: build: add linux-glibc-legacy build TARGET 2019-09-01 17:28:10 +02:00
LICENSE LICENSE: add licence exception for OpenSSL 2012-09-07 13:52:26 +02:00
MAINTAINERS DOC: wurfl: added point of contact in MAINTAINERS file 2019-04-23 11:00:23 +02:00
Makefile BUILD/MEDIUM: threads: enable cpu_affinity on osx 2019-10-17 07:20:58 +02:00
README DOC: create a BRANCHES file to explain the life cycle 2019-06-15 22:00:14 +02:00
ROADMAP DOC: update the outdated ROADMAP file 2019-06-15 21:59:54 +02:00
SUBVERS BUILD: use format tags in VERDATE and SUBVERS files 2013-12-10 11:22:49 +01:00
VERDATE [RELEASE] Released version 2.1-dev2 2019-10-01 18:13:09 +02:00
VERSION [RELEASE] Released version 2.1-dev2 2019-10-01 18:13:09 +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)