50fca6f0b7
It is not expected/supported to reuse an httpclient instance to process several requests. A new instance must be created for each request. However, in lua, there is nothing to prevent a user to create an httpclient object and use it in a loop to process requests. That's unfortunate because this will apparently work, the requests will be sent and a response will be received and processed. However internally some ressources will be allocated and never released. When the next response is processed, the ressources allocated for the previous one are definitively lost. In this patch we take care to check that the httpclient object was never used when a request is sent from a lua script by checking HTTPCLIENT_FS_STARTED flags. This flag is set when a httpclient applet is spawned to process a request and never removed after that. In lua, the httpclient applet is created when the request is sent. So, it is the right place to do this test. This patch should fix the issue #2986. It should be backported as far as 2.6.
HAProxy
HAProxy is a free, very fast and reliable reverse-proxy offering high availability, load balancing, and proxying for TCP and HTTP-based applications.
Installation
The INSTALL file describes how to build HAProxy. A list of packages is also available on the wiki.
Getting help
The discourse and the mailing-list are available for questions or configuration assistance. You can also use the slack or IRC channel. Please don't use the issue tracker for these.
The issue tracker is only for bug reports or feature requests.
Documentation
The HAProxy documentation has been split into a number of different files for ease of use. It is available in text format as well as HTML. The wiki is also meant to replace the old architecture guide.
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)
License
HAProxy is licensed under GPL 2 or any later version, the headers under LGPL 2.1. See the LICENSE file for a more detailed explanation.