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If an applet consumed output data (the amount of output data has changed between before and after the call to the applet), the producer is notified. It means CF_WRITE_PARTIAL and CF_WROTE_DATA are set on the output channel and the opposite stream interface is notified some room was made in its input buffer. This way, it is no longer the applet responsibility to take care of it. However, it doesn't matter if the applet does the same. Said like that, it looks like an improvement not a bug. But it really fixes a bug in the lua, for HTTP applets. Indeed, applet:receive() and applet:getline() are buggy for HTTP applets. Data are consumed but the producer is not notified. It means if the payload is not fully received in one time, the applet may be blocked because the producer remains blocked (it is time dependent). This patch must be backported as far as 2.0 (only for the HTX part).
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)