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GH issue #2034 clearly indicates yet another case of time roll-over that went badly. Issues that happen only once every 50 days are hard to detect and debug, and are usually reported more or less synchronized from multiple sources. This patch finally does what had long been planned but never done yet, which is to force the time to wrap early after boot so that any such remaining issue can be spotted quicker. The margin delay here is 20s (it may be changed by setting BOOT_TIME_WRAP_SEC to another value). This value seems sufficient to permit failed health checks to succeed and traffic to come in and possibly start to update some time stamps (accept dates in logs, freq counters, stick-tables expiration dates etc). It could theoretically be helpful to have this in 2.7, but as can be seen with the two patches below, we've already had incorrect use cases of the internal monotonic time when the wall-clock one was needed, so we could expect to detect other ones in the future. Note that this will *not* induce bugs, it will only make them happen much faster (i.e. no need to wait for 50 days before seeing them). If it were to eventually be backported, these two previous patches must also be backported: BUG/MINOR: clock: use distinct wall-clock and monotonic start dates BUG/MEDIUM: cache: use the correct time reference when comparing dates
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)