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4a2660aa45
When receive or send expiration date of a stream-connector is retrieved, we
now automatically check if it may expire. If not, TICK_ETERNITY is returned.
The expiration dates of the frontend and backend stream-connectors are used
to compute the stream expiration date. This operation is performed at 2
places: at the end of process_stream() and in sc_notify() if the stream is
not woken up.
With this patch, there is no special changes for process_stream() because it
was already handled. It make thing a little simpler. However, it fixes
sc_notify() by avoiding to erroneously compute an expiration date in
past. This highly reduce the stream wakeups when there is contention on the
consumer side.
The bug was introduced with the commit 8073094bf ("NUG/MEDIUM: stconn:
Always update stream's expiration date after I/O"). It was an error to
unconditionnaly set the stream expiration data, without testing blocking
conditions on both SC.
This patch must be backported to 2.8.
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)