4185bc2cb8
Some setups where the number of threads is forced without any binding (no cpu-map), are quite suspicious if they result in less threads than available CPUs, and not even predictably bound, so we want to notify the user that this might be an oversight. Similarly, when thread-groups is forced and not nbthread (and no cpu-map), and the final number of threads is lower than the hard-limit or the number of CPUs we also indicate the impact and how to remedy it. This can happen for example when starting on a machine with more than 64 CPUs and thread-groups forced to 1, or on more than 128 CPUs and thread-groups forced to 2 (e.g. when moving an older config to a new platform). It is possible that some of these conditions might need to be readjusted in the future to catch other traps or to relax certain commonly used, valid cases, so for now it is preferable not to backport this patch. |
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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.