Mercurial > hg > nginx-tests
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Tests: improved stop_daemons() to send signal again.
As was observed, it's possible that a signal to complete a uwsgi daemon
can be ignored while it is starting up, which results in tests hang due
to eternal waiting on child processes termination. Notably, it is seen
when running tests with a high number of prove jobs on a low-profile VM
against nginx with broken modules and/or configuration. To reproduce:
$ TEST_NGINX_GLOBALS=ERROR prove -j16 uwsgi*.t
Inspecting uwsgi under ktrace on FreeBSD confirms that a SIGTERM signal
is ignored at the very beginning of uwsgi startup. It is then replaced
with a default action after listen(), thus waiting until uwsgi is ready
to accept new TCP connections doesn't completely solve the hang window.
The fix is to retry sending a signal some time after waitpid(WNOHANG)
continuously demonstrated no progress with reaping a signaled process.
It is modelled after f13ead27f89c that improved stop() for nginx.
| author | Sergey Kandaurov <pluknet@nginx.com> |
|---|---|
| date | Wed, 29 Dec 2021 22:29:23 +0300 |
| parents | f3ba4c74de31 |
| children |
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Test suite for nginx. Use prove to run tests as one usually do for perl tests. Individual tests may be run as well. Note: tests run nginx (and backend daemons if needed) listening on localhost and may use various ports in 8000 .. 8999 range. Usage: $ TEST_NGINX_BINARY=/path/to/nginx prove . By default tests expect nginx binary to be at ../nginx/objs/nginx. Environment variables: TEST_NGINX_BINARY Sets path to nginx binary to be tested, defaults to "../nginx/objs/nginx". TEST_NGINX_MODULES Sets path to modules directory, defaults to dirname of TEST_NGINX_BINARY. TEST_NGINX_VERBOSE Be a bit more verbose (in particular, print requests sent and responses got from nginx). Note that this requires prove -v (or HARNESS_VERBOSE). TEST_NGINX_LEAVE If set, temporary directory with configs and logs won't be deleted on test completion. Useful for debugging. TEST_NGINX_CATLOG Cat error log to stdout after test completion. Useful for debugging. TEST_NGINX_UNSAFE Run unsafe tests. TEST_NGINX_GLOBALS Sets additional directives in main context. TEST_NGINX_GLOBALS_HTTP Sets additional directives in http context. TEST_NGINX_GLOBALS_STREAM Sets additional directives in stream context. Happy testing!