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HAProxy - Load balancer
32234e7513
One issue with the config parser is that while it tries to report as many errors as possible at once, it's actually unbounded. Thus, when calling haproxy on a wrong file, it can take ages to process, such as here on half a gigabyte of map file instead of config file: $ time ./haproxy -c -f large.map 2>&1 |wc -l 16777220 real 0m31.324s user 0m22.595s sys 0m28.909s This patch modifies readcfgfile() to stop reading the config file after a reasonable amount of fatal errors. This threshold is set to 50, which seems more than enough to spot a recurrent issue with a bit of context in a terminal to address several issues at once, without filling logs nor taking time to parse the file. The difference is clear now: $ time ./haproxy -c -f large.map 2>&1 |wc -l 55 real 0m0.005s user 0m0.004s sys 0m0.003s This may be backported to older versions without causing too many difficulties. However the patch will not apply as-is, it will require to increment the "fatal" count for each place where ERR_FATAL is set in the parsing loop. |
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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)