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When a filter is installed on a proxy and references spoe, we must be absolutely certain that the whole chain is valid on a given process when running in multi-process mode. The problem here is that if a proxy 1 runs on process 1, referencing an SPOE agent itself based on a backend running on process 2, this last one will be completely deinited on process 1, and will thus cause random crashes when it gets messages from this proess. This patch makes sure that the whole chain is valid on all of the caller's processes. This fix must be backported to all spoe-enabled maintained versions. It may potentially disrupt configurations which already randomly crash. There hardly is any intermediary solution though, such configurations need to be fixed.
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 - 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)