mirror of
https://git.haproxy.org/git/haproxy.git/
synced 2026-01-20 09:31:42 +01:00
52ec6f14c4
When HAproxy is stopping, the DNS resolutions must be stopped, except those triggered from a "do-resolve" action. To do so, the resolutions themselves cannot be destroyed, the current design is too complex. However, it is possible to mute the resolvers tasks. The same is already performed with the health-checks. On soft-stop, the tasks are still running periodically but nothing if performed. For the resolvers, when the process is stopping, before running a resolution, we check all the requesters attached to this resolution. If t least a request is a stream or if there is a requester attached to a running proxy, a new resolution is triggered. Otherwise, we ignored the resolution. It will be evaluated again on the next wakeup. This way, "do-resolv" action are still working during soft-stop but other resoluation are stopped. Of course, it may be see as a feature and not a bug because it was never performed. But it is in fact not expected at all to still performing resolutions when HAProxy is stopping. In addution, a proxy option will be added to change this behavior. This patch partially fixes the issue #1874. It could be backported to 2.7 and maybe to 2.6. But no further.
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)