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quic-conn layer has to handle itself STREAM frames after MUX release. If the stream was already seen, it is probably only a retransmitted frame which can be safely ignored. For other streams, an active closure may be needed. Thus it's necessary that quic-conn layer knows the highest stream ID already handled by the MUX after its release. Previously, this was done via <nb_streams> member array in quic-conn structure. Refactor this by replacing <nb_streams> by two members called <stream_max_uni>/<stream_max_bidi>. Indeed, it is unnecessary for quic-conn layer to monitor locally opened uni streams, as the peer cannot by definition emit a STREAM frame on it. Also, bidirectional streams are always opened by the remote side. Previously, <nb_streams> were set by quic-stream layer. Now, <stream_max_uni>/<stream_max_bidi> members are only set one time, just prior to QUIC MUX release. This is sufficient as quic-conn do not use them if the MUX is available. Note that previously, IDs were used relatively to their type, thus incremented by 1, after shifting the original value. For simplification, use the plain stream ID, which is incremented by 4.
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.