view fastcgi_merge_params2.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 196d33c2bb45
children 42d9fd20eeb6
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#!/usr/bin/perl

# (C) Maxim Dounin

# Tests for fastcgi_param inheritance.

###############################################################################

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 cache/)->plan(4)
	->write_file_expand('nginx.conf', <<'EOF');

%%TEST_GLOBALS%%

daemon off;

events {
}

http {
    %%TEST_GLOBALS_HTTP%%

    fastcgi_cache_path  %%TESTDIR%%/cache  levels=1:2
                        keys_zone=NAME:1m;

    fastcgi_cache_key   stub;

    # no fastcgi_param at all, cache switched on at server level

    server {
        listen       127.0.0.1:8080;
        server_name  localhost;

        fastcgi_cache  NAME;

        location / {
            fastcgi_pass    127.0.0.1:8081;
        }

        location /no/ {
            fastcgi_pass    127.0.0.1:8081;
            fastcgi_cache   off;
        }
    }
}

EOF

$t->run_daemon(\&fastcgi_daemon);
$t->run()->waitforsocket('127.0.0.1:' . port(8081));

###############################################################################

like(http_get_ims('/'), qr/ims=;/,
	'if-modified-since cleared with cache');
like(http_get_ims('/'), qr/iums=;/,
	'if-unmodified-since cleared with cache');

like(http_get_ims('/no/'), qr/ims=blah;/,
	'if-modified-since preserved without cache');
like(http_get_ims('/no/'), qr/iums=blah;/,
	'if-unmodified-since preserved without cache');

###############################################################################

sub http_get_ims {
	my ($url) = @_;
	return http(<<EOF);
GET $url HTTP/1.0
Host: localhost
Connection: close
If-Modified-Since: blah
If-Unmodified-Since: blah

EOF
}

###############################################################################

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++;

		my $ims = $ENV{HTTP_IF_MODIFIED_SINCE};
		my $iums = $ENV{HTTP_IF_UNMODIFIED_SINCE};
		my $blah = $ENV{HTTP_X_BLAH};

		print <<EOF;
Location: http://localhost/redirect
Content-Type: text/html

ims=$ims;iums=$iums;blah=$blah;
EOF
	}

	FCGI::CloseSocket($socket);
}

###############################################################################