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HAProxy - Load balancer
26146194d3
The master-worker code registers an exit handler to deal with configuration issues during reload, leading to a restart of the master process in wait mode. But it shouldn't do that when it's expected that the program stops during config parsing or condition checks, as the reload operation is unexpectedly called and results in abnormal behavior and even crashes: $ HAPROXY_MWORKER_REEXEC=1 ./haproxy -W -c -f /dev/null Configuration file is valid [NOTICE] (18418) : haproxy version is 2.5-dev2-ee2420-6 [NOTICE] (18418) : path to executable is ./haproxy [WARNING] (18418) : config : Reexecuting Master process in waitpid mode Segmentation fault $ HAPROXY_MWORKER_REEXEC=1 ./haproxy -W -cc 1 [NOTICE] (18412) : haproxy version is 2.5-dev2-ee2420-6 [NOTICE] (18412) : path to executable is ./haproxy [WARNING] (18412) : config : Reexecuting Master process in waitpid mode [WARNING] (18412) : config : Reexecuting Master process Note that the presence of this variable happens by accident when haproxy is called from within its own programs (see issue #1324), but this should be the object of a separate fix. This patch fixes this by preventing the atexit registration in such situations. This should be backported as far as 1.8. MODE_CHECK_CONDITION has to be dropped for versions prior to 2.5. |
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| include | ||
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| src | ||
| tests | ||
| .cirrus.yml | ||
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| BRANCHES | ||
| CHANGELOG | ||
| CONTRIBUTING | ||
| INSTALL | ||
| LICENSE | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
| ROADMAP | ||
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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)