96a34d79d9
Future commits will implement GSO support to be able to emit multiple datagrams in a single syscall invocation. This will be used every time there is more data to sent than the UDP network MTU. No change will be done for Tx buffer encoding, in particular when using extra metadata datagram header. When GSO will be used, length field will contain the total length of all datagrams to emit in a single GSO syscall send. As such, QUIC send functions will detect that GSO is in use if total length is greater than MTU. This last assumption forces to ensure that MTU is constant. Indeed, in case qc_send() is interrupted, Tx buffer will be left with prepared datagrams. These datagrams will be emitted at the next qc_send() invocation. If MTU would change during these two calls, it would be impossible to know if GSO was used or not. To prevent this, mark <mtu> field of quic_cc_path as constant. |
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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.