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When a peer applet is pushing updates, we limit the number of update sent at once via a global parameter to not spend too much time in the applet. On interrupt, we claimed for more room to be woken up quickly. However, this statement is only true if something was pushed in the buffer. Otherwise, with an empty buffer, if the stream itself is not woken up, the applet remains also blocked because there is no send activity on the other side to unblock it. In this case, instead of requesting more room, it is sufficient to state the applet have more data to send. This patch must be backported as far as 2.6.
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)