Mercurial > hg > nginx-tests
view proxy_cache.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 |
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#!/usr/bin/perl # (C) Maxim Dounin # Tests for http proxy cache. ############################################################################### 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; my $t = Test::Nginx->new()->has(qw/http proxy cache gzip/)->plan(15) ->write_file_expand('nginx.conf', <<'EOF'); %%TEST_GLOBALS%% daemon off; events { } http { %%TEST_GLOBALS_HTTP%% proxy_cache_path %%TESTDIR%%/cache levels=1:2 keys_zone=NAME:1m; server { listen 127.0.0.1:8080; server_name localhost; gzip on; gzip_min_length 0; location / { proxy_pass http://127.0.0.1:8081; proxy_cache NAME; proxy_cache_valid 200 302 2s; proxy_cache_valid 301 1d; proxy_cache_valid any 1m; proxy_cache_min_uses 1; proxy_cache_use_stale error timeout invalid_header http_500 http_404; proxy_no_cache $arg_e; add_header X-Cache-Status $upstream_cache_status; } } server { listen 127.0.0.1:8081; server_name localhost; location / { limit_rate 512; } } } EOF $t->write_file('t.html', 'SEE-THIS'); $t->write_file('t2.html', 'SEE-THIS'); $t->write_file('empty.html', ''); $t->write_file('big.html', 'x' x 1024); $t->run(); ############################################################################### like(http_get('/t.html'), qr/SEE-THIS/, 'proxy request'); $t->write_file('t.html', 'NOOP'); like(http_get('/t.html'), qr/SEE-THIS/, 'proxy request cached'); unlike(http_head('/t2.html'), qr/SEE-THIS/, 'head request'); like(http_get('/t2.html'), qr/SEE-THIS/, 'get after head'); unlike(http_head('/t2.html'), qr/SEE-THIS/, 'head after get'); like(http_head('/empty.html?head'), qr/MISS/, 'empty head first'); like(http_head('/empty.html?head'), qr/HIT/, 'empty head second'); like(http_get_range('/t.html', 'Range: bytes=4-'), qr/^THIS/m, 'cached range'); like(http_get_range('/t.html', 'Range: bytes=0-2,4-'), qr/^SEE.*^THIS/ms, 'cached multipart range'); like(http_get('/empty.html'), qr/MISS/, 'empty get first'); like(http_get('/empty.html'), qr/HIT/, 'empty get second'); select(undef, undef, undef, 3.1); unlink $t->testdir() . '/t.html'; like(http_gzip_request('/t.html'), qr/HTTP.*STALE.*1c\x0d\x0a.{28}\x0d\x0a0\x0d\x0a\x0d\x0a\z/s, 'non-empty get stale'); unlink $t->testdir() . '/empty.html'; like(http_gzip_request('/empty.html'), qr/HTTP.*STALE.*14\x0d\x0a.{20}\x0d\x0a0\x0d\x0a\x0d\x0a\z/s, 'empty get stale'); # no client connection close with response on non-cacheable HEAD requests # see 545b5e4d83b2 in nginx for detailed explanation my $s = http(<<EOF, start => 1); HEAD /big.html?e=1 HTTP/1.1 Host: localhost EOF my $r = http_get('/t.html', socket => $s); like($r, qr/Connection: keep-alive/, 'non-cacheable head - keepalive'); like($r, qr/SEE-THIS/, 'non-cacheable head - second'); ############################################################################### sub http_get_range { my ($url, $extra) = @_; return http(<<EOF); GET $url HTTP/1.1 Host: localhost Connection: close $extra EOF } ###############################################################################