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See GH issues #141 for all the context. In short, registered signal handlers are not inherited by other threads during startup, which is normally not a problem, except that we need that the same thread as the one doing the fork() cleans up the old process using waitpid() once its death is reported via SIGCHLD, as happens in external checks. The only simple solution to this at the moment is to make sure that external checks are exclusively run on the first thread, the one which registered the signal handlers on startup. It will be far more than enough anyway given that external checks must not require to be load balanced on multiple threads! A more complex solution could be designed over the long term to let each thread deal with all signals but it sounds overkill. This must be backported as far as 1.8. |
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| contrib | ||
| doc | ||
| ebtree | ||
| examples | ||
| include | ||
| reg-tests | ||
| scripts | ||
| src | ||
| tests | ||
| .cirrus.yml | ||
| .gitignore | ||
| .travis.yml | ||
| BRANCHES | ||
| CHANGELOG | ||
| CONTRIBUTING | ||
| INSTALL | ||
| LICENSE | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
| ROADMAP | ||
| SUBVERS | ||
| VERDATE | ||
| VERSION | ||
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)