c898b29e64
There is no need to limit the size of the TX buffer to QUIC_MIN_CC_PKTSIZE bytes
when the connection is in closing state. There is already a test which limits the
number of bytes to be used from this TX buffer after this useless test removed.
It limits this number of bytes to the size of the TX buffer itself:
if (end > (unsigned char *)b_wrap(buf))
end = (unsigned char *)b_wrap(buf);
This is exactly what is needed when the connection is in closing state. Indeed,
the size of the TX buffers are limited to reduce the memory usage. The connection
only needs to send short datagrams with at most 2 packets with a CONNECTION_CLOSE*
frames. They are built only one time and backed up into small TX buffer allocated
from a dedicated pool.
The size of this TX buffer is QUIC_MAX_CC_BUFSIZE which depends on QUIC_MIN_CC_PKTSIZE:
#define QUIC_MIN_CC_PKTSIZE 128
#define QUIC_MAX_CC_BUFSIZE (2 * (QUIC_MIN_CC_PKTSIZE + QUIC_DGRAM_HEADLEN))
This size is smaller than an MTU.
This patch should be backported as far as 2.9 to ease further backports to come.
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.