Mercurial > hg > nginx-tests
view upstream_least_conn.t @ 572:ca54b445d982
Tests: masked nginx bug in proxy next upstream.
When iterating through several next upstreams per a worker cycle,
a previously reported event about upstream connection error may
be improperly applied to the next upstream, thus leading to the
invalid connection error. E.g., in kqueue, where the problem is
visible, this is caused by "ev->instance" that does not tolerate
more than one next upstream at once, and kevents placed on the
kqueue separately for read and write events.
The change is to limit test case to the only one next upstream.
author | Sergey Kandaurov <pluknet@nginx.com> |
---|---|
date | Thu, 14 May 2015 11:54:24 +0300 |
parents | e4ff43e00d84 |
children | e9064d691790 |
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#!/usr/bin/perl # (C) Maxim Dounin # Tests for upstream least_conn balancer module. ############################################################################### 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 upstream_least_conn/)->plan(2); $t->write_file_expand('nginx.conf', <<'EOF'); %%TEST_GLOBALS%% daemon off; events { } http { %%TEST_GLOBALS_HTTP%% upstream u { least_conn; server 127.0.0.1:8081; server 127.0.0.1:8082; } server { listen 127.0.0.1:8080; server_name localhost; location / { proxy_pass http://u; } } } EOF $t->run_daemon(\&http_daemon, 8081); $t->run_daemon(\&http_daemon, 8082); $t->run(); $t->waitforsocket('127.0.0.1:8081'); $t->waitforsocket('127.0.0.1:8082'); ############################################################################### is(many('/', 10), '8081: 5, 8082: 5', 'balanced'); my @sockets; push(@sockets, http_get('/w', start => 1)); push(@sockets, http_get('/w', start => 1)); select undef, undef, undef, 0.2; is(many('/w', 10), '8082: 10', 'least conn'); ############################################################################### sub many { my ($uri, $count) = @_; my %ports; for (1 .. $count) { if (http_get($uri) =~ /X-Port: (\d+)/) { $ports{$1} = 0 unless defined $ports{$1}; $ports{$1}++; } } return join ', ', map { $_ . ": " . $ports{$_} } sort keys %ports; } ############################################################################### sub http_daemon { my ($port) = @_; my $server = IO::Socket::INET->new( Proto => 'tcp', LocalHost => '127.0.0.1', LocalPort => $port, Listen => 5, Reuse => 1 ) or die "Can't create listening socket: $!\n"; local $SIG{PIPE} = 'IGNORE'; while (my $client = $server->accept()) { $client->autoflush(1); my $headers = ''; my $uri = ''; while (<$client>) { $headers .= $_; last if (/^\x0d?\x0a?$/); } $uri = $1 if $headers =~ /^\S+\s+([^ ]+)\s+HTTP/i; if ($uri eq '/w' && $port == 8081) { Test::Nginx::log_core('||', "$port: sleep(2.5)"); select undef, undef, undef, 2.5; } Test::Nginx::log_core('||', "$port: response, 200"); print $client <<EOF; HTTP/1.1 200 OK Connection: close X-Port: $port OK EOF close $client; } } ###############################################################################