43367f94f1
Support for connection reuse during server checks was implemented recently. This is activated with the server keyword check-reuse-pool. Similarly to stream processing via connect_backend(), a connection hash is calculated when trying to perform reuse for checks. This is necessary to retrieve for a connection which shares the check connect parameters. However, idle connections can additionnally be tagged using a pool-conn-name or SNI under connect_backend(). Check reuse does not test these values, which prevent to retrieve a matching connection. Improve this by using "check-sni" value as idle connection hash input for check reuse. be_calculate_conn_hash() API has been adjusted so that name value can be passed as input, both when using streams or checks. Even with the current patch, there is still some scenarii which could not be covered for checks connection reuse. most notably, when using dynamic pool-conn-name/SNI value. It is however at least sufficient to cover simpler cases. |
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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.