Mercurial > hg > nginx-tests
view gunzip_memcached.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 | 882267679006 |
children |
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#!/usr/bin/perl # (C) Maxim Dounin # Tests for gunzip filter module with memcached. ############################################################################### use warnings; use strict; use Test::More; BEGIN { use FindBin; chdir($FindBin::Bin); } use lib 'lib'; use Test::Nginx qw/ :DEFAULT :gzip /; ############################################################################### select STDERR; $| = 1; select STDOUT; $| = 1; eval { require Cache::Memcached; }; plan(skip_all => 'Cache::Memcached not installed') if $@; eval { require IO::Compress::Gzip; }; plan(skip_all => "IO::Compress::Gzip not found") if $@; my $t = Test::Nginx->new()->has(qw/http gunzip memcached rewrite/) ->has_daemon('memcached') ->write_file_expand('nginx.conf', <<'EOF'); %%TEST_GLOBALS%% daemon off; events { } http { %%TEST_GLOBALS_HTTP%% server { listen 127.0.0.1:8080; server_name localhost; gunzip on; location / { set $memcached_key $uri; memcached_pass 127.0.0.1:8081; memcached_gzip_flag 2; } } } EOF my $memhelp = `memcached -h`; my @memopts = (); if ($memhelp =~ /repcached/) { # repcached patch adds additional listen socket push @memopts, '-X', port(8082); } if ($memhelp =~ /-U/) { # UDP port is on by default in memcached 1.2.7+ push @memopts, '-U', '0'; } $t->run_daemon('memcached', '-l', '127.0.0.1', '-p', port(8081), @memopts); $t->run()->plan(2); $t->waitforsocket('127.0.0.1:' . port(8081)) or die "Can't start memcached"; # Put compressed value into memcached. This requires compress_threshold to be # set and compressed value to be at least 20% less than original one. my $memd = Cache::Memcached->new(servers => [ '127.0.0.1:' . port(8081) ], compress_threshold => 1, connect_timeout => 1.0); $memd->set('/', 'TEST' x 10) or die "can't put value into memcached: $!"; ############################################################################### http_gzip_like(http_gzip_request('/'), qr/TEST/, 'memcached response gzipped'); like(http_get('/'), qr/TEST/, 'memcached response gunzipped'); ###############################################################################