Mercurial > hg > nginx-tests
view stream_upstream_hash.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 | 5c3946ebd867 |
children | 824754da4afc |
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#!/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; ############################################################################### select STDERR; $| = 1; select STDOUT; $| = 1; my $t = Test::Nginx->new()->has(qw/stream stream_upstream_hash/)->plan(2); $t->write_file_expand('nginx.conf', <<'EOF'); %%TEST_GLOBALS%% daemon off; events { } stream { upstream hash { hash $remote_addr; server 127.0.0.1:8087; server 127.0.0.1:8088; } upstream cons { hash $remote_addr consistent; server 127.0.0.1:8087; server 127.0.0.1:8088; } server { listen 127.0.0.1:8081; proxy_pass hash; } server { listen 127.0.0.1:8082; proxy_pass cons; } } EOF $t->run_daemon(\&stream_daemon, 8087); $t->run_daemon(\&stream_daemon, 8088); $t->run(); $t->waitforsocket('127.0.0.1:8087'); $t->waitforsocket('127.0.0.1:8088'); ############################################################################### is(many('.', 10, peer => '127.0.0.1:8081'), '8088: 10', 'hash'); is(many('.', 10, peer => '127.0.0.1:8082'), '8088: 10', 'hash consistent'); ############################################################################### sub many { my ($data, $count, %opts) = @_; my (%ports, $peer); $peer = $opts{peer}; for (1 .. $count) { if (stream_get($data, $peer) =~ /(\d+)/) { $ports{$1} = 0 unless defined $ports{$1}; $ports{$1}++; } } return join ', ', map { $_ . ": " . $ports{$_} } sort keys %ports; } sub stream_get { my ($data, $peer) = @_; my $s = stream_connect($peer); stream_write($s, $data); $data = ''; while (my $buf = stream_read($s)) { $data .= $buf; } return $data; } sub stream_connect { my $peer = shift; my $s = IO::Socket::INET->new( Proto => 'tcp', PeerAddr => $peer || '127.0.0.1:8080' ) or die "Can't connect to nginx: $!\n"; return $s; } sub stream_write { my ($s, $message) = @_; local $SIG{PIPE} = 'IGNORE'; $s->blocking(0); while (IO::Select->new($s)->can_write(1.5)) { my $n = $s->syswrite($message); last unless $n; $message = substr($message, $n); last unless length $message; } if (length $message) { $s->close(); } } sub stream_read { my ($s) = @_; my ($buf); $s->blocking(0); if (IO::Select->new($s)->can_read(3)) { $s->sysread($buf, 1024); }; log_in($buf); return $buf; } ############################################################################### sub stream_daemon { my ($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('||', @_); } ###############################################################################