Mercurial > hg > nginx-tests
view proxy_cache_lock_ssi.t @ 1236:93f749c1d5c5
Tests: fixed parallel tests execution with UDP.
Previously, when checking ports availability, a UDP socket was always created
first, then a TCP socket was created. On success, one of UDP and TCP sockets
was closed (depending on the "udp" option) and the second one was used to busy
this port in other scripts. This lead to the following problem: in an attempt
to reopen a UDP socket used in a given testing script it could be stolen by
another script as part of checking ports availability.
To solve this problem, UDP and TCP ports were split into two non-overlapping
ranges: TCP ports are only used in the range 8000-8499, and UDP ports - in
the range 8500-8999. In addition, the order of creating sockets in UDP tests
has been reversed: now a TCP socket used as a lock precedes a UDP socket.
author | Andrey Zelenkov <zelenkov@nginx.com> |
---|---|
date | Thu, 26 Oct 2017 18:00:21 +0300 |
parents | be45fa007655 |
children |
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#!/usr/bin/perl # (C) Maxim Dounin # Tests for http proxy cache lock with subrequests. ############################################################################### use warnings; use strict; use Test::More; BEGIN { use FindBin; chdir($FindBin::Bin); } use lib 'lib'; use Test::Nginx qw/ :DEFAULT http_end /; ############################################################################### select STDERR; $| = 1; select STDOUT; $| = 1; my $t = Test::Nginx->new()->has(qw/http proxy cache ssi/) ->write_file_expand('nginx.conf', <<'EOF')->plan(2); %%TEST_GLOBALS%% daemon off; events { } http { %%TEST_GLOBALS_HTTP%% proxy_cache_path %%TESTDIR%%/cache levels=1:2 keys_zone=NAME:1m; limit_req_zone $binary_remote_addr zone=one:1m rate=1r/m; server { listen 127.0.0.1:8080; server_name localhost; location / { proxy_pass http://127.0.0.1:8081; proxy_cache NAME; proxy_cache_lock on; proxy_cache_lock_timeout 100ms; proxy_read_timeout 3s; } location = /ssi.html { ssi on; } } server { listen 127.0.0.1:8081; server_name localhost; limit_req zone=one burst=5; } } EOF $t->write_file('ssi.html', '<!--#include virtual="/active" -->' . '<!--#include virtual="/locked" -->' . 'end' ); $t->write_file('active', 'active'); $t->write_file('locked', 'locked'); $t->run(); ############################################################################### # problem: if proxy cache lock wakeup happens in an inactive # subrequest, just a connection write event may not trigger any # further work # main request -> subrequest /active (waiting for a backend), # -> subrequest /locked (locked by another request) # this doesn't result in an infinite timeout as second subrequest # is woken up by the postpone filter once first subrequest completes, # but this is suboptimal behaviour http_get('/charge'); my $start = time(); my $s = http_get('/locked', start => 1); select undef, undef, undef, 0.2; like(http_get('/ssi.html'), qr/end/, 'cache lock ssi'); http_end($s); cmp_ok(time() - $start, '<=', 5, 'parallel execution after lock timeout'); ###############################################################################