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HAProxy - Load balancer
350f8b0c07
Each time a new SSL context is allocated, global.sslconns is incremented. If global.maxsslconn is reached, the allocation is cancelled. This procedure was not entirely thread-safe due to the check and increment operations conducted at different stage. This could lead to global.maxsslconn slightly exceeded when several threads allocate SSL context while sslconns is near the limit. To fix this, use a CAS operation in a do/while loop. This code is similar to the actconn/maxconn increment for connection. A new function increment_sslconn() is defined for this operation. For the moment, only SSL code is using it. However, it is expected that QUIC will also use it to count QUIC connections as SSL ones. This should be backported to all stable releases. Note that prior to the 2.6, sslconns was outside of global struct, so this commit should be slightly adjusted. |
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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)