Mercurial > hg > nginx-tests
view mail_smtp_greeting_delay.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 | 74986ebee2fd |
children |
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#!/usr/bin/perl # (C) Maxim Dounin ############################################################################### use warnings; use strict; use Test::More; BEGIN { use FindBin; chdir($FindBin::Bin); } use lib 'lib'; use Test::Nginx; use Test::Nginx::SMTP; ############################################################################### select STDERR; $| = 1; select STDOUT; $| = 1; local $SIG{PIPE} = 'IGNORE'; my $t = Test::Nginx->new()->has(qw/mail smtp/)->plan(2) ->write_file_expand('nginx.conf', <<'EOF')->run(); %%TEST_GLOBALS%% daemon off; events { } mail { proxy_pass_error_message on; proxy_timeout 15s; auth_http http://127.0.0.1:8080/mail/auth; xclient off; server { listen 127.0.0.1:8025; protocol smtp; smtp_greeting_delay 1s; } } EOF ############################################################################### # With smtp_greeting_delay session expected to be closed after first error # message if client sent something before greeting. my $s = Test::Nginx::SMTP->new(); $s->send('HELO example.com'); $s->check(qr/^5.. /, "command before greeting - session must be rejected"); ok($s->eof(), "session have to be closed"); ###############################################################################