Mercurial > hg > nginx-tests
view stream_upstream_max_conns.t @ 1990:85d88cd5091c
Tests: SSI include stub tests.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Thu, 04 Jul 2024 17:42:55 +0300 |
parents | f3ba4c74de31 |
children |
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#!/usr/bin/perl # (C) Nginx, Inc. # (C) Sergey Kandaurov # Tests for stream upstream module with max_conns feature. ############################################################################### use warnings; use strict; use Test::More; use IO::Select; 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/stream stream_upstream_least_conn/) ->has(qw/stream_upstream_hash/)->plan(14); $t->write_file_expand('nginx.conf', <<'EOF'); %%TEST_GLOBALS%% daemon off; events { } stream { %%TEST_GLOBALS_STREAM%% upstream u_unlim { server 127.0.0.1:8081 max_conns=0; server 127.0.0.1:8082; } upstream u_lim { server 127.0.0.1:8081 max_conns=3; } upstream u_backup { server 127.0.0.1:8081 max_conns=2; server 127.0.0.1:8082 backup; } upstream u_backup_lim { server 127.0.0.1:8081 max_conns=2; server 127.0.0.1:8082 backup max_conns=3; } upstream u_two { server 127.0.0.1:8081 max_conns=1; server 127.0.0.1:8082 max_conns=1; } upstream u_some { server 127.0.0.1:8081 max_conns=1; server 127.0.0.1:8082; } upstream u_many { server 127.0.0.1:8081 max_conns=1; server 127.0.0.1:8081 max_conns=1; server 127.0.0.1:8082; } upstream u_weight { server 127.0.0.1:8081 weight=2 max_conns=1; server 127.0.0.1:8082; } upstream u_lc { least_conn; server 127.0.0.1:8081 max_conns=1; server 127.0.0.1:8082; } upstream u_lc_backup { least_conn; server 127.0.0.1:8081 max_conns=2; server 127.0.0.1:8082 backup; } upstream u_lc_backup_lim { least_conn; server 127.0.0.1:8081 max_conns=2; server 127.0.0.1:8082 backup max_conns=3; } upstream u_hash { hash $remote_addr; server 127.0.0.1:8081 max_conns=1; server 127.0.0.1:8082 max_conns=2; } upstream u_chash { hash $remote_addr consistent; server 127.0.0.1:8081 max_conns=1; server 127.0.0.1:8082 max_conns=2; } server { listen 127.0.0.1:8086; proxy_pass u_unlim; } server { listen 127.0.0.1:8087; proxy_pass u_lim; } server { listen 127.0.0.1:8088; proxy_pass u_backup; } server { listen 127.0.0.1:8089; proxy_pass u_backup_lim; } server { listen 127.0.0.1:8090; proxy_pass u_two; } server { listen 127.0.0.1:8091; proxy_pass u_some; } server { listen 127.0.0.1:8092; proxy_pass u_many; } server { listen 127.0.0.1:8093; proxy_pass u_weight; } server { listen 127.0.0.1:8094; proxy_pass u_lc; } server { listen 127.0.0.1:8095; proxy_pass u_lc_backup; } server { listen 127.0.0.1:8096; proxy_pass u_lc_backup_lim; } server { listen 127.0.0.1:8097; proxy_pass u_hash; } server { listen 127.0.0.1:8098; proxy_pass u_chash; } } EOF $t->run_daemon(\&http_daemon, port(8081), port(8082), port(8085)); $t->run(); $t->waitforsocket('127.0.0.1:' . port(8081)); $t->waitforsocket('127.0.0.1:' . port(8082)); $t->waitforsocket('127.0.0.1:' . port(8085)); ############################################################################### my @ports = my ($p1, $p2) = (port(8081), port(8082)); # two peers without max_conns is(parallel(8086, '/u_unlim?delay=0', 4), "$p1: 2, $p2: 2", 'unlimited'); # reopen connection to test connection subtraction my @s = http_get_multi(8087, '/u_lim', 2, 1.1); get(8087, '/close'); push @s, http_get_multi(8087, '/u_lim', 1, 1.1); get(8085, '/closeall'); is(http_end_multi(\@s), "$p1: 3", 'conn subtraction'); # simple test with limited peer is(parallel(8087, '/u_lim', 4), "$p1: 3", 'single'); # limited peer with backup peer is(peers(8088, '/u_backup', 6), "$p1 $p1 $p2 $p2 $p2 $p2", 'backup'); # peer and backup peer, both limited is(peers(8089, '/u_backup_lim', 6), "$p1 $p1 $p2 $p2 $p2 ", 'backup limited'); # all peers limited is(parallel(8090, '/u_two', 4), "$p1: 1, $p2: 1", 'all peers'); # subset of peers limited is(parallel(8091, '/u_some', 4), "$p1: 1, $p2: 3", 'some peers'); # ensure that peer "weight" does not affect its max_conns limit is(parallel(8093, '/u_weight', 4), "$p1: 1, $p2: 3", 'weight'); # peers with equal server value aggregate max_conns limit is(parallel(8092, '/u_many', 6), "$p1: 2, $p2: 4", 'equal peer'); # least_conn balancer tests is(parallel(8094, '/u_lc', 4), "$p1: 1, $p2: 3", 'least_conn'); is(peers(8095, '/u_lc_backup', 6), "$p1 $p1 $p2 $p2 $p2 $p2", 'least_conn backup'); is(peers(8096, '/u_lc_backup_lim', 6), "$p1 $p1 $p2 $p2 $p2 ", 'least_conn backup limited'); # hash balancer tests is(parallel(8097, '/u_hash', 4), "$p1: 1, $p2: 2", 'hash'); is(parallel(8098, '/u_chash', 4), "$p1: 1, $p2: 2", 'hash consistent'); ############################################################################### sub peers { my ($port, $uri, $count) = @_; my @sockets = http_get_multi($port, $uri, $count, 1.1); get(8085, '/closeall'); join ' ', map { defined $_ && /X-Port: (\d+)/ && $1 } map { http_end $_ } (@sockets); } sub parallel { my ($port, $uri, $count) = @_; my @sockets = http_get_multi($port, $uri, $count); for (1 .. 20) { last if IO::Select->new(@sockets)->can_read(3) == $count; select undef, undef, undef, 0.01; } get(8085, '/closeall'); return http_end_multi(\@sockets); } sub get { my ($port, $uri, %opts) = @_; my $s = IO::Socket::INET->new( Proto => 'tcp', PeerAddr => '127.0.0.1', PeerPort => port($port), ) or die "Can't connect to nginx: $!\n"; http_get($uri, socket => $s, %opts); } sub http_get_multi { my ($port, $uri, $count, $wait) = @_; my @sockets; for (0 .. $count - 1) { $sockets[$_] = get($port, $uri, start => 1); IO::Select->new($sockets[$_])->can_read($wait) if $wait; } return @sockets; } sub http_end_multi { my ($sockets) = @_; my %ports; for my $sock (@$sockets) { my $r = http_end($sock); if ($r && $r =~ /X-Port: (\d+)/) { $ports{$1} = 0 unless defined $ports{$1}; $ports{$1}++; } close $sock; } my @keys = map { my $p = $_; grep { $p == $_ } keys %ports } @ports; return join ', ', map { $_ . ": " . $ports{$_} } @keys; } ############################################################################### sub http_daemon { my (@ports) = @_; my (@socks, @clients); for my $port (@ports) { my $server = IO::Socket::INET->new( Proto => 'tcp', LocalHost => "127.0.0.1:$port", Listen => 42, Reuse => 1 ) or die "Can't create listening socket: $!\n"; push @socks, $server; } my $sel = IO::Select->new(@socks); my $skip = 4; my $count = 0; local $SIG{PIPE} = 'IGNORE'; OUTER: while (my @ready = $sel->can_read) { foreach my $fh (@ready) { if (grep $_ == $fh, @socks) { my $new = $fh->accept; $new->autoflush(1); $sel->add($new); $count++; } else { my @busy = grep { $_->sockport() } @ready; # finish other handles if ($fh->sockport() == port(8085) && @busy > 1 && grep $_->sockport() != port(8085), @busy) { next; } # late events in other handles if ($fh->sockport() == port(8085) && @busy == 1 && $count > 1 && $skip-- > 0) { select undef, undef, undef, 0.1; next OUTER; } my $rv = process_socket($fh, \@clients); if ($rv == 1) { $sel->remove($fh); $fh->close; } if ($rv == 2) { for (@clients) { $sel->remove($_); $_->close; } $sel->remove($fh); $fh->close; $skip = 4; } $count--; } } } } # Returns true to close connection sub process_socket { my ($client, $saved) = @_; my $port = $client->sockport(); my $headers = ''; my $uri = ''; while (<$client>) { $headers .= $_; last if (/^\x0d?\x0a?$/); } return 1 if $headers eq ''; $uri = $1 if $headers =~ /^\S+\s+([^ ]+)\s+HTTP/i; return 1 if $uri eq ''; Test::Nginx::log_core('||', "$port: response, 200"); print $client <<EOF; HTTP/1.1 200 OK X-Port: $port OK EOF return 2 if $uri =~ /closeall/; return 1 if $uri =~ /close/; push @$saved, $client; return 0; } ###############################################################################