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ed5ac9c786
As discussed in issue #178, the change brought around 1.9-dev11 by commit 1eb6c55808 ("MINOR: lb: make the leastconn algorithm more accurate") causes some harm in the situation it tried to improve. By always applying the server's weight even for no connection, we end up always picking the same servers for the first connections, so under a low load, if servers only have either 0 or 1 connections, in practice the same servers will always be picked. This patch partially restores the original behaviour but still keeping the spirit of the aforementioned patch. Now what is done is that servers with no connections will always be picked first, regardless of their weight, so they will effectively follow round-robin. Only servers with one connection or more will see an accurate weight applied. This patch was developed and tested by @malsumis and @jaroslawr who reported the initial issue. It should be backported to 2.0 and 1.9.
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)