Mercurial > hg > nginx-tests
view stream_access.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) Andrey Zelenkov # (C) Nginx, Inc. # Tests for stream access module. ############################################################################### 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_access unix/); $t->write_file_expand('nginx.conf', <<'EOF'); %%TEST_GLOBALS%% daemon off; events { } stream { %%TEST_GLOBALS_STREAM%% server { listen 127.0.0.1:8082; proxy_pass [::1]:%%PORT_8080%%; } server { listen 127.0.0.1:8083; proxy_pass unix:%%TESTDIR%%/unix.sock.0; } server { listen 127.0.0.1:8085; proxy_pass [::1]:%%PORT_8081%%; } server { listen 127.0.0.1:8086; proxy_pass unix:%%TESTDIR%%/unix.sock.1; } server { listen 127.0.0.1:8088; proxy_pass [::1]:%%PORT_8082%%; } server { listen 127.0.0.1:8089; proxy_pass unix:%%TESTDIR%%/unix.sock.2; } server { listen 127.0.0.1:8091; proxy_pass [::1]:%%PORT_8083%%; } server { listen 127.0.0.1:8092; proxy_pass unix:%%TESTDIR%%/unix.sock.3; } server { listen 127.0.0.1:8094; proxy_pass [::1]:%%PORT_8084%%; } server { listen 127.0.0.1:8095; proxy_pass unix:%%TESTDIR%%/unix.sock.4; } server { listen 127.0.0.1:8097; proxy_pass [::1]:%%PORT_8085%%; } server { listen 127.0.0.1:8098; proxy_pass unix:%%TESTDIR%%/unix.sock.5; } server { listen 127.0.0.1:8081; listen [::1]:%%PORT_8080%%; listen unix:%%TESTDIR%%/unix.sock.0; proxy_pass 127.0.0.1:8080; allow all; } server { listen 127.0.0.1:8084; listen [::1]:%%PORT_8081%%; listen unix:%%TESTDIR%%/unix.sock.1; proxy_pass 127.0.0.1:8080; deny all; } server { listen 127.0.0.1:8087; listen [::1]:%%PORT_8082%%; listen unix:%%TESTDIR%%/unix.sock.2; proxy_pass 127.0.0.1:8080; allow unix:; } server { listen 127.0.0.1:8090; listen [::1]:%%PORT_8083%%; listen unix:%%TESTDIR%%/unix.sock.3; proxy_pass 127.0.0.1:8080; deny 127.0.0.1; } server { listen 127.0.0.1:8093; listen [::1]:%%PORT_8084%%; listen unix:%%TESTDIR%%/unix.sock.4; proxy_pass 127.0.0.1:8080; deny ::1; } server { listen 127.0.0.1:8096; listen [::1]:%%PORT_8085%%; listen unix:%%TESTDIR%%/unix.sock.5; proxy_pass 127.0.0.1:8080; deny unix:; } } EOF $t->try_run('no inet6 support')->plan(18); $t->run_daemon(\&stream_daemon); $t->waitforsocket('127.0.0.1:' . port(8080)); ############################################################################### my $str = 'SEE-THIS'; # allow all is(stream('127.0.0.1:' . port(8081))->io($str), $str, 'inet allow all'); is(stream('127.0.0.1:' . port(8082))->io($str), $str, 'inet6 allow all'); is(stream('127.0.0.1:' . port(8083))->io($str), $str, 'unix allow all'); # deny all is(stream('127.0.0.1:' . port(8084))->io($str), '', 'inet deny all'); is(stream('127.0.0.1:' . port(8085))->io($str), '', 'inet6 deny all'); is(stream('127.0.0.1:' . port(8086))->io($str), '', 'unix deny all'); # allow unix is(stream('127.0.0.1:' . port(8087))->io($str), $str, 'inet allow unix'); is(stream('127.0.0.1:' . port(8088))->io($str), $str, 'inet6 allow unix'); is(stream('127.0.0.1:' . port(8089))->io($str), $str, 'unix allow unix'); # deny inet is(stream('127.0.0.1:' . port(8090))->io($str), '', 'inet deny inet'); is(stream('127.0.0.1:' . port(8091))->io($str), $str, 'inet6 deny inet'); is(stream('127.0.0.1:' . port(8092))->io($str), $str, 'unix deny inet'); # deny inet6 is(stream('127.0.0.1:' . port(8093))->io($str), $str, 'inet deny inet6'); is(stream('127.0.0.1:' . port(8094))->io($str), '', 'inet6 deny inet6'); is(stream('127.0.0.1:' . port(8095))->io($str), $str, 'unix deny inet6'); # deny unix is(stream('127.0.0.1:' . port(8096))->io($str), $str, 'inet deny unix'); is(stream('127.0.0.1:' . port(8097))->io($str), $str, 'inet6 deny unix'); is(stream('127.0.0.1:' . port(8098))->io($str), '', 'unix deny unix'); ############################################################################### sub stream_daemon { my $server = IO::Socket::INET->new( Proto => 'tcp', LocalAddr => '127.0.0.1:' . port(8080), Listen => 5, Reuse => 1 ) or die "Can't create listening socket: $!\n"; local $SIG{PIPE} = 'IGNORE'; while (my $client = $server->accept()) { $client->autoflush(1); log2c("(new connection $client)"); $client->sysread(my $buffer, 65536) or next; log2i("$client $buffer"); log2o("$client $buffer"); $client->syswrite($buffer); close $client; } } sub log2i { Test::Nginx::log_core('|| <<', @_); } sub log2o { Test::Nginx::log_core('|| >>', @_); } sub log2c { Test::Nginx::log_core('||', @_); } ###############################################################################