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As reported by Tristan in GH #2561, syslog messages sent over rings are malformed since commit01aa0a05("MEDIUM: ring: change the ring reader to use the new vector-based API now"). Indeed, take a look at the following log message produced prior to01aa0a05: 181 <134>1 2024-05-07T09:45:21.543263+02:00 - haproxy 113700 - - 127.0.0.1:56136 [07/May/2024:09:45:21.491] front front/s1 0/0/21/30/51 404 369 - - ---- 1/1/0/0/0 0/0 "GET / HTTP/1.1" Starting with01aa0a05, here's the equivalent log message: <134>1 2024-05-07T09:45:21.543263+02:00 - haproxy 112729 - - 127.0.0.1:56136 [07/May/2024:09:45:21.491] front front/s1 0/0/66/39/105 404 369 - - ---- 1/1/0/0/0 0/0 "GET / HTTP/1.1"-fwr -> Message is missing octet counting header, and garbage bytes are found at the end of the payload. This bug is caused by a small mistake in syslog_applet_append_event(): when the function was refactored to use vector API instead of buffer API, we used 'trash.area' as starting pointer to write the event instead of 'trash.area + trash.data', causing existing octet counting prefix (already written in trash) to be overwritten and trash.data to be wrongly incremented. No backport needed (01aa0a05was introduced during 3.0 development)
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)