Mercurial > hg > nginx-tests
view stream_status_variable.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 | f3ba4c74de31 |
children |
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#!/usr/bin/perl # (C) Sergey Kandaurov # (C) Nginx, Inc. # Tests for stream status variable. ############################################################################### use warnings; use strict; use Test::More; BEGIN { use FindBin; chdir($FindBin::Bin); } use lib 'lib'; use Test::Nginx; use Test::Nginx::Stream qw/ stream /; ############################################################################### select STDERR; $| = 1; select STDOUT; $| = 1; my $t = Test::Nginx->new()->has(qw/stream stream_return stream_access/) ->has(qw/stream_limit_conn/); $t->write_file_expand('nginx.conf', <<'EOF'); %%TEST_GLOBALS%% daemon off; events { } stream { %%TEST_GLOBALS_STREAM%% log_format status $status; limit_conn_zone $binary_remote_addr zone=zone:1m; server { listen 127.0.0.1:8080; return SEE-THIS; access_log %%TESTDIR%%/200.log status; } server { listen 127.0.0.1:8081; return SEE-THIS; deny all; access_log %%TESTDIR%%/403.log status; } server { listen 127.0.0.1:8082; proxy_pass 127.0.0.1:8083; access_log %%TESTDIR%%/502.log status; proxy_connect_timeout 0; } server { listen 127.0.0.1:8084; proxy_pass example.com:$remote_port; access_log %%TESTDIR%%/500.log status; } server { listen 127.0.0.1:8085; limit_conn zone 1; proxy_pass 127.0.0.1:8086; access_log %%TESTDIR%%/503.log status; } server { listen 127.0.0.1:8086 proxy_protocol; return SEE-THIS; access_log %%TESTDIR%%/400.log status; } } EOF $t->run()->plan(6); ############################################################################### stream('127.0.0.1:' . port(8080))->read(); stream('127.0.0.1:' . port(8081))->read(); stream('127.0.0.1:' . port(8082))->read(); stream('127.0.0.1:' . port(8084))->read(); my $s = stream('127.0.0.1:' . port(8085)); stream('127.0.0.1:' . port(8085))->read(); $s->io('PROXY INVALID'); $t->stop(); is($t->read_file('200.log'), "200\n", 'stream status 200'); is($t->read_file('400.log'), "400\n", 'stream status 400'); is($t->read_file('403.log'), "403\n", 'stream status 403'); is($t->read_file('500.log'), "500\n", 'stream status 500'); is($t->read_file('502.log'), "502\n", 'stream status 502'); is($t->read_file('503.log'), "503\n200\n", 'stream status 503'); ###############################################################################