mirror of
https://git.haproxy.org/git/haproxy.git/
synced 2025-09-23 06:41:32 +02:00
4d1ff11f05
When idle H1 connections cannot be stored into a server pool or are later evicted, they're often seen closed with a FIN then an RST. The problem is that this is sufficient to leave them in TIME_WAIT in the local sockets table and port exhaustion may happen. The reason is that in h1_release() we rely on h1_shutw_conn() which itself decides whether to close in silent or normal mode only based on the H1C_F_ST_SILENT_SHUT flag. This flag is only set by h1_shutw() based on the requested mode. But when the connection is in the idle list, the mode ought to always be silent. What this patch does is to set the flag before trying to add to the idle list, and remove it after removing from the idle list. This way if the connection fails to be added or has to be killed, it's closed with an RST. This must be backported as far as 2.4. It's not sure whether older versions need an equivalent.
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)