Mercurial > hg > nginx-tests
view stream_upstream_least_conn.t @ 1215:26884729e06b
Tests: cope with resolver resend in mail resolver tests.
Currently, if resolver didn't find PTR type in the answer section of PTR
response, it keeps the node in the resend queue until the next timer event.
author | Sergey Kandaurov <pluknet@nginx.com> |
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date | Thu, 31 Aug 2017 19:09:04 +0300 |
parents | 882267679006 |
children | 3fc6817cd84a |
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#!/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(); $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()->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('||', @_); } ###############################################################################