Mercurial > hg > nginx-tests
view limit_rate.t @ 1752:ba6e24e38f03
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 | 5ac6efbe5552 |
children |
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#!/usr/bin/perl # (C) Sergey Kandaurov # (C) Nginx, Inc. # Tests for limit_rate and limit_rate_after directives. ############################################################################### use warnings; use strict; use Test::More; BEGIN { use FindBin; chdir($FindBin::Bin); } use lib 'lib'; use Test::Nginx; ############################################################################### select STDERR; $| = 1; select STDOUT; $| = 1; plan(skip_all => 'win32') if $^O eq 'MSWin32'; my $t = Test::Nginx->new()->has(qw/http proxy/); $t->write_file_expand('nginx.conf', <<'EOF'); %%TEST_GLOBALS%% daemon off; events { } http { %%TEST_GLOBALS_HTTP%% log_format test escape=none $uri:$arg_a$arg_xal:$upstream_response_time; server { listen 127.0.0.1:8080; server_name localhost; location / { proxy_pass http://127.0.0.1:8081; access_log %%TESTDIR%%/test.log test; } } server { listen 127.0.0.1:8081; server_name localhost; limit_rate 12k; limit_rate_after 256; location /data { add_header X-Accel-Redirect $arg_xar; add_header X-Accel-Limit-Rate $arg_xal; } location /redirect { limit_rate 0; alias %%TESTDIR%%/data; } location /var { alias %%TESTDIR%%/data; limit_rate $arg_l; limit_rate_after $arg_a; } location /proxy/ { proxy_pass http://127.0.0.1:8081/; } } } EOF $t->write_file('data', 'X' x 30000); $t->run()->plan(7); ############################################################################### # NB: response time may be 1s less, if timer is scheduled on upper half second like(http_get('/data'), qr/^(XXXXXXXXXX){3000}\x0d?\x0a?$/m, 'response body'); like($t->read_file('test.log'), qr/data::[12]/, 'limit_rate'); # /proxy -> /redirect # before 1.17.0, limit was set once in ngx_http_update_location_config() http_get('/proxy/data?xar=/redirect'); like($t->read_file('test.log'), qr!proxy/data::0!, 'X-Accel-Redirect'); # X-Accel-Limit-Rate has higher precedence http_get('/proxy/data?xar=/redirect&xal=13000'); like($t->read_file('test.log'), qr!roxy/data:13000:[12]!, 'X-Accel-Limit-Rate'); http_get('/var?l=12k&a=256'); like($t->read_file('test.log'), qr/var:256:[12]/, 'variable'); http_get('/var?l=12k&a=40k'); like($t->read_file('test.log'), qr/var:40k:0/, 'variable after'); http_get('/var'); like($t->read_file('test.log'), qr/var::0/, 'variables unset'); ###############################################################################