Mercurial > hg > nginx-tests
view stream_udp_upstream.t @ 1983:c7315caf2110
Tests: optimized processing of large QUIC packets with padding.
Path MTU discovery packets might contain a lot of padding, and creating
a copy of the whole buffer for each PADDING frame, which is just one
byte with type 0, consumes lots of resources. This was seen to result
in flapping of at least h3_keepalive.t and h3_ssl_early_data.t tests.
Fix is to copy at most 8 bytes for parse_int() calls when parsing
frame types.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Mon, 03 Jun 2024 04:17:28 +0300 |
parents | f3ba4c74de31 |
children |
line wrap: on
line source
#!/usr/bin/perl # (C) Sergey Kandaurov # (C) Nginx, Inc. # Stream tests for upstream module and balancers with datagrams. ############################################################################### use warnings; use strict; use Test::More; BEGIN { use FindBin; chdir($FindBin::Bin); } use lib 'lib'; use Test::Nginx; use Test::Nginx::Stream qw/ dgram /; ############################################################################### select STDERR; $| = 1; select STDOUT; $| = 1; my $t = Test::Nginx->new()->has(qw/stream udp/)->plan(5) ->write_file_expand('nginx.conf', <<'EOF'); %%TEST_GLOBALS%% daemon off; events { } stream { %%TEST_GLOBALS_STREAM%% proxy_responses 1; proxy_timeout 1s; upstream u { server 127.0.0.1:%%PORT_8984_UDP%%; server 127.0.0.1:%%PORT_8985_UDP%%; } upstream u2 { server 127.0.0.1:%%PORT_8986_UDP%% down; server 127.0.0.1:%%PORT_8986_UDP%%; server 127.0.0.1:%%PORT_8984_UDP%%; server 127.0.0.1:%%PORT_8985_UDP%%; } upstream u3 { server 127.0.0.1:%%PORT_8984_UDP%%; server 127.0.0.1:%%PORT_8985_UDP%% weight=2; } upstream u4 { server 127.0.0.1:%%PORT_8986_UDP%% down; server 127.0.0.1:%%PORT_8984_UDP%% backup; } server { listen 127.0.0.1:%%PORT_8980_UDP%% udp; proxy_pass u; } server { listen 127.0.0.1:%%PORT_8981_UDP%% udp; proxy_pass u2; } server { listen 127.0.0.1:%%PORT_8982_UDP%% udp; proxy_pass u3; } server { listen 127.0.0.1:%%PORT_8983_UDP%% udp; proxy_pass u4; } } EOF $t->run_daemon(\&udp_daemon, port(8984), $t); $t->run_daemon(\&udp_daemon, port(8985), $t); $t->run(); $t->waitforfile($t->testdir . '/' . port(8984)); $t->waitforfile($t->testdir . '/' . port(8985)); ############################################################################### my @ports = my ($port4, $port5) = (port(8984), port(8985)); is(many(10, port(8980)), "$port4: 5, $port5: 5", 'balanced'); is(dgram('127.0.0.1:' . port(8981))->io('.', read_timeout => 0.5), '', 'no next upstream for dgram'); is(many(10, port(8981)), "$port4: 5, $port5: 5", 'failures'); is(many(9, port(8982)), "$port4: 3, $port5: 6", 'weight'); is(many(10, port(8983)), "$port4: 10", 'backup'); ############################################################################### sub many { my ($count, $port) = @_; my (%ports); for (1 .. $count) { if (dgram("127.0.0.1:$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 udp_daemon { my ($port, $t) = @_; my $server = IO::Socket::INET->new( Proto => 'udp', LocalAddr => '127.0.0.1:' . $port, Reuse => 1, ) or die "Can't create listening socket: $!\n"; # signal we are ready open my $fh, '>', $t->testdir() . '/' . $port; close $fh; while (1) { $server->recv(my $buffer, 65536); $buffer = $server->sockport(); $server->send($buffer); } } ###############################################################################