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Since version 2.5 the master is automatically re-executed in wait-mode when the config is successfully loaded, puting corner cases of the wait mode in plain sight. When using the -x argument and with the right timing, the master will try to get the FDs again in wait mode even through it's not needed anymore, which will harm the worker by removing its listeners. However, if it fails, (and it's suppose to, sometimes), the master will exit with EXIT_FAILURE because it does not have the MODE_MWORKER flag, but only the MODE_MWORKER_WAIT flag. With the consequence of killing the workers. This patch fixes the issue by restricting the use of _getsocks to some modes. This patch must be backported in every version supported, even through the impact should me more harmless in version prior to 2.5.
The HAProxy documentation has been split into a number of different files for ease of use. 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)