0376e66112
If connection closing is activated, qc_prep_pkts() can only built a datagram with a single packet. This is because we consider that only a single CONNECTION_CLOSE frame is relevant at this stage. This is handled both by qc_prep_pkts() which ensure that only a single packet datagram is built and also qc_do_build_pkt() which prevents the invokation of qc_build_frms() if <cc> is set. However, there is an incoherency for probing. First, qc_prep_pkts() deactivates it if connection closing is requested. But qc_do_build_pkt() may still emit probing frame as it does not check its <probe> argument but rather <pto_probe> QEL field directly. This can results in a packet mixing a PING and a CONNECTION close frames, which is useless. Fix this by adjusting qc_do_build_pkt() : closing argument is also checked on PING probing emission. Note that there is still shaky code here as qc_do_build_pkt() should rely only on <probe> argument to ensure this. This should be backported up to 2.6.
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.