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The number of stick-counter entries usable by track-sc rules is currently set at build time. There is no good value for this since the vast majority of users don't need any, most need only a few and rare users need more. Adding more counters for everyone increases memory and CPU usages for no reason. This patch moves the per-session and per-stream arrays to a pool of a size defined at boot time. This way it becomes possible to set the number of entries at boot time via a new global setting "tune.stick-counters" that sets the limit for the whole process. When not set, the MAX_SESS_STR_CTR value still applies, or 3 if not set, as before. It is also possible to lower the value to 0 to save a bit of memory if not used at all. Note that a few low-level sample-fetch functions had to be protected due to the ability to use sample-fetches in the global section to set some variables.
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)