116983ad94
Defaults section are indexed by their name in defproxy_by_name tree. For named sections, there is no duplicate : if two instances have the same name, the older one is removed from the tree. However, this was not the case for unnamed defaults which are all stored inconditionnally in defproxy_by_name. This commit introduces a new approach for unnamed defaults. Now, these instances are never inserted in the defproxy_by_name tree. Indeed, this is not needed as no tree lookup is performed with empty names. This may optimize slightly config parsing with a huge number of named and unnamed defaults sections, as the first ones won't fill up the tree needlessly. However, defproxy_by_name tree is also used to purge unreferenced defaults instances, both on postparsing and deinit. Thus, a new approach is needed for unnamed sections cleanup. Now, each time a new defaults is parsed, if the previous instance is unnamed, it is freed unless if referenced by a proxy. When config parsing is ended, a similar operation is performed to ensure the last unnamed defaults section won't stay in memory. To implement this, last_defproxy static variable is now set to global. Unnamed sections which cannot be removed due to proxies referencing proxies will still be removed when such proxies are freed themselves, at runtime or on deinit.
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.