333deef485
Change h1_process() to return -2 when the mux is destroyed but the connection is not, so that we can differentiate between "both mux and connection were destroyed" and "only the mux was destroyed". It can happen that only the mux gets destroyed, and the connection is still alive, if we did upgrade it to HTTP/2. In h1_wake(), if the connection is alive, then return 0, as the wake methods should only return -1 if the connection is dead. This fixes a bug where the ssl xprt would consider the connection destroyed, and thus would consider its tasklet should die, and return NULL, and its TASK_RUNNING flag would never be removed, leading to an infinite loop later on. This would happen anytime an HTTP/2 upgrade was successful. This should be backported up to 2.8. While the bug by commit 00f43b7c8b136515653bcb2fc014b0832ec32d61, it was not triggered before only by chance, and exists in previous releases too.
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.