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An idle backend connection is useless if a HTTP/3 GOAWAY frame has been received. Indeed, it is forbid to open new stream on such connection. Thus, this patch ensures such connections are removed as soon as possible. This is performed via a new check in qcc_is_dead() on QC_CF_CONN_SHUT flag for backend connections. This ensures that a shut connection is released instead of being inserted in idle list on detach operation. This commits also completes qcc_recv() with a new call to qcc_is_dead() on its ending. This is necessary if GOAWAY is received on an idle connection. For now, this is only checked for backend connections as a GOAWAY is without any real effect for frontend connections. Thus, this extra protection ensures that we do not break by incident QUIC frontend support. qcc_io_recv() also performs qcc_decode_qcs(). However, an extra qcc_is_dead() is not necessary in this case as the following qcc_io_process() already performs it. |
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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.