mirror of
http://git.haproxy.org/git/haproxy.git/
synced 2025-01-02 02:02:03 +00:00
haproxy public development tree
a8b7684319
It is possible to block the stats applet if a line exceeds the free space in the responsse buffer while the buffer is empty. It is only an issue in HTTP becaues of the HTX overhead and, AFAIK, only with json output. In this case, the applet is unable to write anything in the response buffer and waits for some free space to proceed further. On the other hand, because the response channel is empty, nothing is sent and thus no space can be freed. At this stage, the stream and the applet are blocked waiting for the other side. To avoid this situation, we must take care to not dump a line exceeding the free space in the HTX message. It means we cannot rely anymore on the global trash buffer. At least, not directly. The trick is to use a local trash buffer, mapped on the global one but with a different size. We use b_make() to do so. The local trash buffer is thread local to avoid any concurrency issue. It is a valid fix. However it could be good to review the internal API of the stats applet to not rely on a global variable. This patch should solve the #1873. It must be backported at least as far as 2.6. Older versions must be evaluated first but it is probably possible to hit this bug with long proxy/server names. |
||
|---|---|---|
| .github | ||
| addons | ||
| admin | ||
| dev | ||
| doc | ||
| examples | ||
| include | ||
| reg-tests | ||
| scripts | ||
| src | ||
| tests | ||
| .cirrus.yml | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .travis.yml | ||
| BRANCHES | ||
| CHANGELOG | ||
| CONTRIBUTING | ||
| INSTALL | ||
| LICENSE | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
| SUBVERS | ||
| VERDATE | ||
| VERSION | ||
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)