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2e9c1d2960
Quite a few times some bugs have made a stream task incorrectly handle a complex combination of events, which was often reported as "100% CPU", and was usually caused by the event not being properly identified and flushed, and the stream's handler called in loops. This patch adds a call rate counter to the stream struct. It's not huge, it's really inexpensive (especially compared to the rest of the processing function) and will easily help spot such tasks in "show sess" output, possibly even allowing to kill them. A future patch should probably consist in alerting when they're above a certain threshold, possibly sending a dump and killing them. Some options could also consist in aborting in order to get an analyzable core dump and let a service manager restart a fresh new process.
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)