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c35bcfcc21
There's a minor glitch with the way idle connections start to be evicted. The lookup always goes from thread 0 to thread N-1. This causes depletion of connections on the first threads and abundance on the last ones. This is visible with the takeover() stats below: $ socat - /tmp/sock1 <<< "show activity"|grep ^fd ; \ sleep 10 ; \ socat -/tmp/sock1 <<< "show activity"|grep ^fd fd_takeover: 300144 [ 91887 84029 66254 57974 ] fd_takeover: 359631 [ 111369 99699 79145 69418 ] There are respectively 19k, 15k, 13k and 11k takeovers for only 4 threads, indicating that the first thread needs a foreign FD twice more often than the 4th one. This patch changes this si that all threads are scanned in round robin starting with the current one. The takeovers now happen in a much more distributed way (about 4 times 9k) : fd_takeover: 1420081 [ 359562 359453 346586 354480 ] fd_takeover: 1457044 [ 368779 368429 355990 363846 ] There is no need to backport this, as this happened along a few patches that were merged during 2.2 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)