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It is possible to start too many applets on sporadic burst of events after an inactivity period. It is due to the way we estimate if a new applet must be created or not. It is based on a frequency counter. We compare the events processing rate against the number of events currently processed (in progress or waiting to be processed). But we should also take care of the number of idle applets. We already track the number of idle applets, but it is global and not per-thread. Thus we now also track the number of idle applets per-thread. It is not a big deal because this fills a hole in the spoe_agent structure. Thanks to this counter, we can refrain applets creation if there is enough idle applets to handle currently processed events. This patch should be backported to every stable versions.
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)