Mercurial > hg > nginx-tests
view fastcgi_body2.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 | 1a820a5a32ae |
children | 42d9fd20eeb6 |
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#!/usr/bin/perl # (C) Maxim Dounin # (C) Sergey Kandaurov # (C) Nginx, Inc. # Test for fastcgi backend with large request body, # with fastcgi_next_upstream directive. ############################################################################### 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(2) ->write_file_expand('nginx.conf', <<'EOF'); %%TEST_GLOBALS%% daemon off; events { } http { %%TEST_GLOBALS_HTTP%% upstream u { server 127.0.0.1:8081; server 127.0.0.1:8082 backup; } upstream u2 { server 127.0.0.1:8081; server 127.0.0.1:8082 backup; } server { listen 127.0.0.1:8080; server_name localhost; location / { fastcgi_pass u; fastcgi_param REQUEST_URI $request_uri; fastcgi_param CONTENT_LENGTH $content_length; # fastcgi_next_upstream error timeout; fastcgi_read_timeout 1s; } location /in_memory { fastcgi_pass u2; fastcgi_param REQUEST_URI $request_uri; fastcgi_param CONTENT_LENGTH $content_length; # fastcgi_next_upstream error timeout; fastcgi_read_timeout 1s; client_body_buffer_size 128k; } } } EOF $t->run_daemon(\&fastcgi_daemon, port(8081)); $t->run_daemon(\&fastcgi_daemon, port(8082)); $t->run(); $t->waitforsocket('127.0.0.1:' . port(8081)); $t->waitforsocket('127.0.0.1:' . port(8082)); ############################################################################### like(http_get_length('/', 'x' x 102400), qr/X-Length: 102400/, 'body length - in file'); like(http_get_length('/in_memory', 'x' x 102400), qr/X-Length: 102400/, 'body length - in memory'); ############################################################################### sub http_get_length { my ($url, $body) = @_; my $length = length $body; return http(<<EOF); GET $url HTTP/1.0 Host: localhost Content-Length: $length $body EOF } ############################################################################### sub fastcgi_daemon { my ($port) = @_; my $socket = FCGI::OpenSocket("127.0.0.1:$port", 5); my $request = FCGI::Request(\*STDIN, \*STDOUT, \*STDERR, \%ENV, $socket); while( $request->Accept() >= 0 ) { read(STDIN, my $body, $ENV{'CONTENT_LENGTH'}); my $len = length $body; sleep 3 if $port == port(8081); print <<EOF; Location: http://localhost/redirect Content-Type: text/html X-Length: $len EOF } FCGI::CloseSocket($socket); } ###############################################################################