0e6f968ee3
As reported in GH #2958, commit 6c9b315 caused a regression with sc_* fetches and tracked counter id > 9. As such, the below configuration would cause a BUG_ON() to be triggered: global log stdout format raw local0 tune.stick-counters 11 defaults log global mode http frontend www bind *:8080 acl track_me bool(true) http-request set-var(txn.track_var) str("a") http-request track-sc10 var(txn.track_var) table rate_table if track_me http-request set-var(txn.track_var_rate) sc_gpc_rate(0,10,rate_table) http-request return status 200 backend rate_table stick-table type string size 1k expire 5m store gpc_rate(1,1m) While in 6c9b315 the src_fetch logic was removed from smp_fetch_sc_stkctr(), num > 9 is indeed not expected anymore as original num value. But what we didn't consider is that num is effectively re-assigned for generic sc_* variant. Thus the BUG_ON() is misplaced as it should only be evaluated for non-generic fetches. It explains why it triggers with valid configurations Thanks to GH user @tkjaer for his detailed report and bug analysis No backport needed, this bug is specific to 3.2.
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.