Mercurial > hg > nginx-tests
view fastcgi.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 | 5ac92857e419 |
children |
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#!/usr/bin/perl # (C) Maxim Dounin # Test for fastcgi backend. ############################################################################### 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; eval { require FCGI; }; plan(skip_all => 'FCGI not installed') if $@; plan(skip_all => 'win32') if $^O eq 'MSWin32'; my $t = Test::Nginx->new()->has(qw/http fastcgi/)->plan(8) ->write_file_expand('nginx.conf', <<'EOF'); %%TEST_GLOBALS%% daemon off; events { } http { %%TEST_GLOBALS_HTTP%% upstream u { server 127.0.0.1:8081; } server { listen 127.0.0.1:8080; server_name localhost; location / { fastcgi_pass 127.0.0.1:8081; fastcgi_param REQUEST_URI $request_uri; } location /catch { fastcgi_pass 127.0.0.1:8081; fastcgi_param REQUEST_URI "/stderr"; fastcgi_catch_stderr sample; } location /var { fastcgi_pass $arg_b; fastcgi_param REQUEST_URI $request_uri; } } } EOF $t->run_daemon(\&fastcgi_daemon); $t->run()->waitforsocket('127.0.0.1:' . port(8081)); ############################################################################### like(http_get('/'), qr/SEE-THIS/, 'fastcgi request'); like(http_get('/redir'), qr/ 302 /, 'fastcgi redirect'); like(http_get('/'), qr/^3$/m, 'fastcgi third request'); unlike(http_head('/'), qr/SEE-THIS/, 'no data in HEAD'); like(http_get('/stderr'), qr/SEE-THIS/, 'large stderr handled'); like(http_get('/catch'), qr/502 Bad/, 'catch stderr'); like(http_get('/var?b=127.0.0.1:' . port(8081)), qr/SEE-THIS/, 'fastcgi with variables'); like(http_get('/var?b=u'), qr/SEE-THIS/, 'fastcgi with variables to upstream'); ############################################################################### sub fastcgi_daemon { my $socket = FCGI::OpenSocket('127.0.0.1:' . port(8081), 5); my $request = FCGI::Request(\*STDIN, \*STDOUT, \*STDERR, \%ENV, $socket); my $count; while( $request->Accept() >= 0 ) { $count++; if ($ENV{REQUEST_URI} eq '/stderr') { warn "sample stderr text" x 512; } print <<EOF; Location: http://localhost/redirect Content-Type: text/html SEE-THIS $count EOF } FCGI::CloseSocket($socket); } ###############################################################################