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When an HTTP health-check is performed in FCGI, we must not rely on the SI source and destination addresses to set default parameters (REMOTE_ADDR/REMOTE_PORT and SERVER_NAME/SERVER_PORT) because the backend conn-stream is not attached to a stream but to a healt-check. Thus, there is no stream-interface. In addition, there is no client connection because it is an "internal" session. Thus, for now, in this case, there is only the server connection that can be used. So src/dst addresses are retrieved from the server connection when the CS application is a health-check. This patch should solve issue #1572. It must be backported to 2.5. Note than the CS api has changed. Thus, on HAProxy 2.5, we should test the session's origin instead: const struct sockaddr_storage *src = (cs_check(fstrm->cs) ? ...); const struct sockaddr_storage *dst = (cs_check(fstrm->cs) ? ...);
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)