5ee266b745
This patch simplifies the code of startup_logs_init_shm(). We no longer re-exec master process twice after each reload to free its unused memory, which it had to allocate, because it has parsed all configuration sections. So, there is no longer need to keep SHM fd opened between the first and the next reloads. We can completely remove HAPROXY_STARTUPLOGS_FD. In step_init_1() we continue to call startup_logs_init_shm() to open SHM and to allocate startup logs ring area within it. In master-worker mode, worker duplicates initial startup logs ring after sending its READY state to master. Sharing the same ring between two processes until the worker finishes its initialization allows to show at master CLI output worker's startup logs. During the next reload master process should free the memory allocated for the ring structure. Then after the execvp() it will reopen and map SHM area again and it will reallocate again the ring structure.
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.