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Willy Tarreau 9b5d57dfd5 BUG/MEDIUM: cache: use the correct time reference when comparing dates
The cache makes use of dates advertised by external components, such
as "last-modified" or "date". As such these are wall-clock dates, and
not internal dates. However, all comparisons are mistakenly made based
on the internal monotonic date which is designed to drift from the wall
clock one in order to catch up with stolen time (which can sometimes be
intense in VMs). As such after some run time some objects may fail to
validate or fail to expire depending on the direction of the drift. This
is particularly visible when applying an offset to the internal time to
force it to wrap soon after startup, as it will be shifted up to 49.7
days in the future depending on the current date; what happens in this
case is that the reg-test "cache_expires.vtc" fails on the 3rd test by
returning stale contents from the cache at the date of this commit.

It is really important that all external dates are compared against
"date" and not "now" for this reason.

This fix needs to be backported to all versions.
2023-02-08 11:10:33 +01:00
.github CI: Reformat `matrix.py` using `black` 2023-01-03 16:28:34 +01:00
addons BUG/MINOR: promex: Don't forget to consume the request on error 2023-01-13 09:45:23 +01:00
admin BUILD: halog: fix missing double-quote at end of help line 2022-11-25 11:11:41 +01:00
dev DEV: hpack: fix `trash` build regression 2023-01-27 10:22:20 +01:00
doc [RELEASE] Released version 2.8-dev3 2023-02-04 10:51:05 +01:00
examples EXAMPLES: remove completely outdated acl-content-sw.cfg 2022-05-30 18:14:24 +02:00
include BUG/MINOR: clock: do not mix wall-clock and monotonic time in uptime calculation 2023-02-08 11:06:55 +01:00
reg-tests REGTEST: add RFC7239 forwarded header tests 2023-01-27 15:18:59 +01:00
scripts SCRIPTS: run-regtests: add a version check 2022-11-30 18:44:33 +01:00
src BUG/MEDIUM: cache: use the correct time reference when comparing dates 2023-02-08 11:10:33 +01:00
tests TESTS: add a unit test for one_among_mask() 2022-06-21 20:29:57 +02:00
.cirrus.yml CI: cirrus-ci: bump FreeBSD image to 13-1 2022-09-09 13:30:17 +02:00
.gitattributes
.gitignore CLEANUP: exclude udp-perturb with .gitignore 2022-09-16 15:47:04 +02:00
.mailmap
.travis.yml
BRANCHES
CHANGELOG [RELEASE] Released version 2.8-dev3 2023-02-04 10:51:05 +01:00
CONTRIBUTING
INSTALL MINOR: version: mention that it's development again 2022-12-01 15:24:10 +01:00
LICENSE
MAINTAINERS CLEANUP: assorted typo fixes in the code and comments 2022-11-30 14:02:36 +01:00
Makefile BUILD: makefile: fix PCRE overriding specific lib path 2023-02-03 09:42:49 +01:00
README
SUBVERS
VERDATE [RELEASE] Released version 2.8-dev3 2023-02-04 10:51:05 +01:00
VERSION [RELEASE] Released version 2.8-dev3 2023-02-04 10:51:05 +01:00

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)