blob: e28925e7dbffa7d7fa1039de5283a129ca022f4e [file] [log] [blame]
#!/usr/bin/perl
# (C) Sergey Kandaurov
# (C) Nginx, Inc.
# Stream tests for upstream hash balancer module.
###############################################################################
use warnings;
use strict;
use Test::More;
use IO::Select;
BEGIN { use FindBin; chdir($FindBin::Bin); }
use lib 'lib';
use Test::Nginx;
use Test::Nginx::Stream qw/ stream /;
###############################################################################
select STDERR; $| = 1;
select STDOUT; $| = 1;
my $t = Test::Nginx->new()->has(qw/stream stream_upstream_hash/)->plan(4);
$t->write_file_expand('nginx.conf', <<'EOF');
%%TEST_GLOBALS%%
daemon off;
events {
}
stream {
upstream hash {
hash $remote_addr;
server 127.0.0.1:8082;
server 127.0.0.1:8083;
}
upstream cons {
hash $remote_addr consistent;
server 127.0.0.1:8082;
server 127.0.0.1:8083;
}
upstream empty {
hash $proxy_protocol_addr;
server 127.0.0.1:8082;
server 127.0.0.1:8083;
}
upstream cempty {
hash $proxy_protocol_addr consistent;
server 127.0.0.1:8082;
server 127.0.0.1:8083;
}
server {
listen 127.0.0.1:8080;
proxy_pass hash;
}
server {
listen 127.0.0.1:8081;
proxy_pass cons;
}
server {
listen 127.0.0.1:8084;
proxy_pass empty;
}
server {
listen 127.0.0.1:8085;
proxy_pass cempty;
}
}
EOF
$t->run_daemon(\&stream_daemon, port(8082));
$t->run_daemon(\&stream_daemon, port(8083));
$t->run();
$t->waitforsocket('127.0.0.1:' . port(8082));
$t->waitforsocket('127.0.0.1:' . port(8083));
###############################################################################
my @ports = my ($port2, $port3) = (port(8082), port(8083));
is(many(10, port(8080)), "$port3: 10", 'hash');
like(many(10, port(8081)), qr/($port2|$port3): 10/, 'hash consistent');
# fallback to round-robin
TODO: {
local $TODO = 'not yet' unless $t->has_version('1.17.1');
like(many(4, port(8084)), qr/$port2: 2, $port3: 2/, 'empty key');
like(many(4, port(8085)), qr/$port2: 2, $port3: 2/, 'empty key - consistent');
}
###############################################################################
sub many {
my ($count, $port) = @_;
my (%ports);
for (1 .. $count) {
if (stream("127.0.0.1:$port")->io('.') =~ /(\d+)/) {
$ports{$1} = 0 unless defined $ports{$1};
$ports{$1}++;
}
}
my @keys = map { my $p = $_; grep { $p == $_ } keys %ports } @ports;
return join ', ', map { $_ . ": " . $ports{$_} } @keys;
}
###############################################################################
sub stream_daemon {
my ($port) = @_;
my $server = IO::Socket::INET->new(
Proto => 'tcp',
LocalAddr => '127.0.0.1',
LocalPort => $port,
Listen => 5,
Reuse => 1
)
or die "Can't create listening socket: $!\n";
my $sel = IO::Select->new($server);
local $SIG{PIPE} = 'IGNORE';
while (my @ready = $sel->can_read) {
foreach my $fh (@ready) {
if ($server == $fh) {
my $new = $fh->accept;
$new->autoflush(1);
$sel->add($new);
} elsif (stream_handle_client($fh)) {
$sel->remove($fh);
$fh->close;
}
}
}
}
sub stream_handle_client {
my ($client) = @_;
log2c("(new connection $client)");
$client->sysread(my $buffer, 65536) or return 1;
log2i("$client $buffer");
$buffer = $client->sockport();
log2o("$client $buffer");
$client->syswrite($buffer);
return 1;
}
sub log2i { Test::Nginx::log_core('|| <<', @_); }
sub log2o { Test::Nginx::log_core('|| >>', @_); }
sub log2c { Test::Nginx::log_core('||', @_); }
###############################################################################