feaac66b5e
In order to make the lock history a bit more useful, let's try to merge adjacent lock/unlock sequences that don't change anything for other threads. For this we can replace the last unlock with the new operation on the same label, and even just not store it if it was the same as the one before the unlock, since in the end it's the same as if the unlock had not been done. Now loops that used to be filled with "R:LISTENER U:LISTENER" show more useful info such as: S:IDLE_CONNS U:IDLE_CONNS S:PEER U:PEER S:IDLE_CONNS U:IDLE_CONNS R:LISTENER U:LISTENER U:STK_TABLE W:STK_SESS U:STK_SESS R:STK_TABLE U:STK_TABLE W:STK_SESS U:STK_SESS R:STK_TABLE R:STK_TABLE U:STK_TABLE W:STK_SESS U:STK_SESS W:STK_TABLE_UPDT U:STK_TABLE_UPDT S:PEER It's worth noting that it can sometimes induce confusion when recursive locks of the same label are used (a few exist on peers or stick-tables), as in such a case the two operations would be needed. However these ones are already undebuggable, so instead they will just have to be renamed to make sure they use a distinct label.
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.