| #!/usr/bin/perl |
| |
| # (C) Sergey Kandaurov |
| # (C) Nginx, Inc. |
| |
| # Stream tests for upstream least_conn 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_least_conn/)->plan(2) |
| ->write_file_expand('nginx.conf', <<'EOF'); |
| |
| %%TEST_GLOBALS%% |
| |
| daemon off; |
| |
| events { |
| } |
| |
| stream { |
| upstream u { |
| least_conn; |
| server 127.0.0.1:8081; |
| server 127.0.0.1:8082; |
| } |
| |
| server { |
| listen 127.0.0.1:8080; |
| proxy_pass u; |
| } |
| } |
| |
| EOF |
| |
| $t->run_daemon(\&stream_daemon, port(8081)); |
| $t->run_daemon(\&stream_daemon, port(8082)); |
| $t->run(); |
| |
| $t->waitforsocket('127.0.0.1:' . port(8081)); |
| $t->waitforsocket('127.0.0.1:' . port(8082)); |
| |
| ############################################################################### |
| |
| my @ports = my ($port1, $port2) = (port(8081), port(8082)); |
| |
| is(many(10), "$port1: 5, $port2: 5", 'balanced'); |
| |
| my @sockets; |
| for (1 .. 2) { |
| my $s = stream('127.0.0.1:' . port(8080)); |
| $s->write('w'); |
| push @sockets, $s; |
| } |
| |
| select undef, undef, undef, 0.2; |
| |
| is(many(10), "$port2: 10", 'least_conn'); |
| |
| ############################################################################### |
| |
| sub many { |
| my ($count) = @_; |
| my (%ports); |
| |
| for (1 .. $count) { |
| if (stream('127.0.0.1:' . port(8080))->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"); |
| |
| my $port = $client->sockport(); |
| |
| if ($buffer =~ /w/ && $port == port(8081)) { |
| Test::Nginx::log_core('||', "$port: sleep(2.5)"); |
| select undef, undef, undef, 2.5; |
| } |
| |
| $buffer = $port; |
| |
| log2o("$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('||', @_); } |
| |
| ############################################################################### |