3da1d63749
stats http-request rules evaluation is handled separately in
http_process_req_common(). Because of that, if a rule requires yielding,
the evaluation is interrupted as (F)YIELD verdict return values are not
handled there.
Since 3.2 with the introduction of costly ruleset interruption in
0846638 ("MEDIUM: stream: interrupt costly rulesets after too many
evaluations"), the issue started being more visible because stats
http-request rules would be interrupted when the evaluation counters
reached tune.max-rules-at-once, but the evaluation would never be
resumed, and the request would continue to be handled as if the
evaluation was complete. Note however that the issue already existed
in the past for actions that could return ACT_RET_YIELD such as
"pause" for instance.
This issue was reported by GH user @Wahnes in #3087, thanks to him for
providing useful repro and details.
To fix the issue, we merge rule vedict handling in
http_process_req_common() so that "stats http-request" evaluation benefits
from all return values already supported for the current ruleset.
It should be backported in 3.2 with 0846638 ("MEDIUM: stream: interrupt
costly rulesets after too many evaluations"), and probably even further
(all stable versions) if the patch adaptation is not to complex (before
HTTP_RULE_RES_FYIELD was introduced) because it is still relevant.
HAProxy
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:
- 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)
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.