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876b411f2b
Previous patch 160287b676 ("MEDIUM: pipe/thread: maintain a per-thread
local cache of recently used pipes") didn't replace all pipe counter
updates with atomic ops since some were already under a lock, which is
obviously not a valid reason since these ones can be updated in parallel
to other atomic ops. The result was that the pipes_used could seldom be
seen as negative in the stats (harmless) but also this could result in
slightly more pipes being allocated than permitted, thus stealing a few
file descriptors that were not usable for connections anymore. Let's use
pure atomic ops everywhere these counters are updated.
No backport is needed.
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)