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3d9266f414
This one started to randomly fail on me again and I could figure the problem. It mixes one checked server with one unchecked on in each backend, and tries to make sure that each checked server receives exactly one request. But that doesn't work and is entirely time- dependent because if the check starts before the client, a pure TCP check is sent to the server, which sees an aborted connection and makes the whole check fail. Here what is done is that we make sure that only the second server and not the first one is checked. The traffic is delivered to all first servers, and each HTTP server must always receive a valid HTTP request. In parallel, checks must not fail as they're delivered to dummy servers. The check doesn't fail anymore, even when started on a single thread at nice +5 while 8 processes are fighting on the same core to inject HTTP traffic at 25 Gbps, which used to systematically make it fail previously. Since it took more than one hour to fix the "expect" line for the stats output, I did it using a small script that I pasted into the vtc file in case it's needed later. The relevance of this test is questionable once its complexity is factored in. Let's keep it as long as it works without too much effort. |
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.. | ||
balance | ||
cache | ||
checks | ||
compression | ||
connection | ||
contrib | ||
converter | ||
filters | ||
http-capture | ||
http-cookies | ||
http-errorfiles | ||
http-messaging | ||
http-rules | ||
http-set-timeout | ||
jwt | ||
log | ||
lua | ||
mailers | ||
mcli | ||
peers | ||
sample_fetches | ||
seamless-reload | ||
server | ||
spoe | ||
ssl | ||
startup | ||
stick-table | ||
stickiness | ||
stream | ||
tcp-rules | ||
webstats | ||
README |
* Regression testing for HAProxy with VTest * This little README file is about how to compile and run vtest test case files (VTC files) to test HAProxy for any regression. To do so, you will have to compile vtest program sources which depends on Varnish cache application sources. vtest, formerly varnishtest, is a very useful program which has been developed to test Varnish cache application. vtest has been modified in collaboration with Varnish cache conceptor Poul-Henning Kamp to support HAProxy in addition to Varnish cache. See also: doc/regression-testing.txt * vtest compilation * $ git clone https://github.com/vtest/VTest $ cd VTest $ make vtest Then vtest program may be found at the root directory of vtest sources directory. The Varnish cache manuals are located in 'man' directory of Varnish cache sources directory. You will have to have a look at varnishtest(7) and vtc(7) manuals to use vtest. Some information may also be found in doc/regression-testing.txt in HAProxy sources. Note that VTC files for Varnish cache may be found in bin/varnishtest/tests directory of Varnish cache sources directory which may be found here: https://github.com/varnishcache/varnish-cache * vtest execution * You must set HAPROXY_PROGRAM environment variable to give the location of the HAProxy program to test to vtest: $ HAPROXY_PROGRAM=<my haproxy program> vtest ... The HAProxy VTC files found in HAProxy sources may be run with the reg-tests Makefile target. You must set the VTEST_PROGRAM environment variable to give the location of the vtest program which has been previously compiled. $ VTEST_PROGRAM=<my vtest program> make reg-tests "reg-tests" Makefile target run scripts/run-regtest.sh script. To get more information about this script run it with --help option. Note that vtest is run with -t10 and -l option. -l option is to keep keep vtest temporary directory in case of failed test cases. core files may be found in this directory (if enabled by ulimit). * vtest patches for HAProxy VTC files * When producing a patch to add a VTC regression testing file to reg-tests directory, please follow these simple rules: - If your VTC file needs others files, if possible, use the same basename as that of the VTC file, - Put these files in a directory with the same name as the code area concerned by the bug ('peers', 'lua', 'acl' etc). Please note that most tests use a common set of timeouts defined by the environment variable HAPROXY_TEST_TIMEOUT. As much as possible, for regular I/O (i.e. not errors), please try to reuse that setting so that the value may easily be adjusted when running in some particularly slow environments, or be shortened to fail faster on developers' machines.