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Willy Tarreau 64d20fc9e0 BUG/MINOR: fd: my_closefrom() on Linux could skip contiguous series of sockets 
We got a detailed report analysis showing that our optimization consisting
in using poll() to detect already closed FDs within a 1024 range has an
issue with the case where 1024 consecutive FDs are open (hence do not show
POLLNVAL) and none of them has any activity report. In this case poll()
returns zero update and we would just skip the loop that inspects all the
FDs to close the valid ones. One visible effect is that the called programs
might occasionally see some FDs being exposed in the low range of their fd
space, possibly making the process run out of FDs when trying to open a
file for example.

Note that this is actually a fix for commit b8e602cb1b ("BUG/MINOR: fd:
make sure my_closefrom() doesn't miss some FDs") that already faced a
more common form of this problem (incomplete but non-empty FDs reported).

This can be backported up to 2.0.
2024-04-19 17:06:21 +02:00
.github CI: reduce ASAN log redirection umbrella size 2024-04-17 11:14:44 +02:00
addons CLEANUP: assorted typo fixes in the code and comments 2024-03-05 11:50:34 +01:00
admin BUILD: address a few remaining calloc(size, n) cases 2024-02-10 11:37:27 +01:00
dev MEDIUM: ring: use the topmost bit of the tail as a lock 2024-03-25 17:34:19 +00:00
doc MINOR: ssl: implement keylog fetches for backend connections 2024-04-19 14:48:44 +02:00
examples CLEANUP: assorted typo fixes in the code and comments 2023-11-23 16:23:14 +01:00
include MEDIUM: muxes: Use one callback function to shut a mux stream 2024-04-19 16:33:40 +02:00
reg-tests CLEANUP: assorted typo fixes in the code and comments 2024-04-17 11:14:44 +02:00
scripts CI: ssl: add yet another OpenSSL download fallback 2024-02-07 11:05:45 +01:00
src BUG/MINOR: fd: my_closefrom() on Linux could skip contiguous series of sockets 2024-04-19 17:06:21 +02:00
tests Revert "MAJOR: import: update mt_list to support exponential back-off" 2023-09-15 17:13:43 +02:00
.cirrus.yml CI: cirrus-ci: display gdb bt if any 2023-09-22 08:28:30 +02:00
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.gitignore CONTRIB: Add vi file extensions to .gitignore 2023-06-02 18:14:34 +02:00
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BRANCHES
BSDmakefile BUILD: makefile: commit the tiny FreeBSD makefile stub 2023-05-24 17:17:36 +02:00
CHANGELOG [RELEASE] Released version 3.0-dev7 2024-04-06 17:02:07 +02:00
CONTRIBUTING
INSTALL DOC: install: clarify the build process by splitting it into subsections 2024-04-11 18:02:26 +02:00
LICENSE
MAINTAINERS MAJOR: spoe: Deprecate the SPOE filter 2024-03-15 11:29:39 +01:00
Makefile REORG: stats: extract JSON related functions 2024-04-18 17:04:08 +02:00
README
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VERDATE [RELEASE] Released version 3.0-dev7 2024-04-06 17:02:07 +02:00
VERSION [RELEASE] Released version 3.0-dev7 2024-04-06 17:02:07 +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)