52a7d4ec39
Check reuse is only performed if no specific check connect options are specified on the configuration. This ensures that reuse won't be performed if intending to use different connection parameters from the default traffic. This relies on tcpcheck_use_nondefault_connect() which indicates if the check has any specific connection parameters. One of them if check <mux_proto> field. However, this field may be automatically set during init_srv_check() in some specific conditions without any explicit configuration, most notably when using http-check rulesets on an HTTP backend. Thus, it prevents connection reuse for these checks. This commit fixes this by adjuting tcpcheck_use_nondefault_connect(). Beside checking check <mux_proto> field, it also detects if it is different from the server configuration. This is sufficient to know if the value is derived from the configuration or automatically calculated in init_srv_check(). Note that this patch introduces a small behavior change. Prior to it, check reuse were never performed if "check-proto" is explicitely configured. Now, check reuse will be performed if the configured value is identical to the server MUX protocol. This is considered as acceptable as connection reuse is safe when using a similar MUX protocol. This must be backported up to 3.2.
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.