Mercurial > hg > nginx-tests
view proxy_cache_valid.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 | 97c8280de681 |
children |
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#!/usr/bin/perl # (C) Sergey Kandaurov # (C) Nginx, Inc. # Tests for http proxy cache, the proxy_cache_valid directive # used with the caching parameters set in the response header. ############################################################################### 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; my $t = Test::Nginx->new()->has(qw/http proxy cache rewrite/)->plan(12) ->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; location / { proxy_pass http://127.0.0.1:8081; proxy_cache NAME; proxy_cache_valid 200 401 1m; proxy_intercept_errors on; error_page 404 401 = @fallback; add_header X-Cache-Status $upstream_cache_status; } location @fallback { return 403; } } server { listen 127.0.0.1:8081; server_name localhost; location / { add_header Cache-Control $http_x_cc always; error_page 403 = /index-no-cache; } location /index-no-cache { add_header Cache-Control no-cache always; return 401; } } } EOF $t->write_file('t.html', 'SEE-THIS'); $t->run(); ############################################################################### like(get('/t.html?1', 'X-CC: max-age=1'), qr/MISS/, 'max-age'); like(get('/t.html?2', 'X-CC: max-age=1, s-maxage=10'), qr/MISS/, 's-maxage'); like(http_get('/t.html?3'), qr/MISS/, 'proxy_cache_valid'); $t->write_file('t.html', 'NOOP'); like(http_get('/t.html?1'), qr/HIT/, 'max-age cached'); like(http_get('/t.html?2'), qr/HIT/, 's-maxage cached'); like(http_get('/t.html?3'), qr/HIT/, 'proxy_cache_valid cached'); select undef, undef, undef, 2.1; # Cache-Control in the response header overrides proxy_cache_valid like(http_get('/t.html?1'), qr/EXPIRED/, 'max-age ceased'); like(http_get('/t.html?2'), qr/HIT/, 's-maxage overrides max-age'); # ticket #1382, cache item "error" field was not set from Cache-Control: max-age like(get('/t2.html', 'X-CC: max-age=1'), qr/403 Forbidden/, 'intercept error'); $t->write_file('t2.html', 'NOOP'); like(http_get('/t2.html'), qr/403 Forbidden/, 'error cached from max-age'); # ticket #1382, cache item "error" field was set regardless of u->cacheable. like(http_get('/'), qr/403 Forbidden/, 'error no-cache'); $t->write_file('index.html', ''); like(http_get('/'), qr/200 OK/, 'error no-cache - not cacheable'); ############################################################################### sub get { my ($url, $extra) = @_; return http(<<EOF); GET $url HTTP/1.1 Host: localhost Connection: close $extra EOF } ###############################################################################