97490a7789
In issue #3229 it was reported that the master couldn't reload after a
failed reload following a wrong configuration.
It is still possible to do a reload using the "reload" command of the
master CLI. But every signals are blocked.
The problem was introduced in 709cde6d0 ("BUG/MEDIUM: mworker: signals
inconsistencies during startup and reload") which fixes the blocking of
signals during the reload.
However the patch missed a case, indeed, the
run_master_in_recovery_mode() is not being called when the worker failed
to parse the configuration, it is only failing when the master is
failing.
To handle this case, the mworker_unblock_signals() function must be
called upon mworker_on_new_child_failure(). But since this is called in
an haproxy signal handler it would mess with the signals.
Instead, the patch adds a task which is started by the signal handler,
and restores the signals outside of it.
This must be backported as far as 3.1.
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.