d0d60a007d
This is used to index the proxy's name and it contains a copy of the pointer to the proxy's name in <id>. Changing that for a ceb_node placed just before <id> saves 32 bytes to the struct proxy, which is now 3112 bytes large. Here we need to continue to support duplicates since they're still allowed between type-incompatible proxies. Interestingly, the use of cebis_next_dup() instead of cebis_next() in proxy_find_by_name() allows us to get rid of an strcmp() that was performed for each use_backend rule. A test with a large config (100k backends) shows that we can get 3% extra performance on a config involving a static use_backend rule (3.09M to 3.18M rps), and even 4.5% on a dynamic rule selecting a random backend (2.47M to 2.59M).
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.