Mercurial > hg > ngx_http_upstream_keepalive

annotate t/fastcgi-keepalive.t @ 42:c53e018dbcf5

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Keepalive: do not reject connections with ready flag set. Instead, call read event handler explicitly to test if there are actually any unexpected data. This fixes unbuffered proxy connections not being cached with epoll and rtsig event methods.
author Maxim Dounin <mdounin@mdounin.ru>
date Thu, 08 Sep 2011 17:12:07 +0400
parents e10649a96f39
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #!/usr/bin/perl
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2
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3 # (C) Maxim Dounin
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4
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5 # Test for fastcgi backend with keepalive.
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6
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7 ###############################################################################
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8
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9 use warnings;
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10 use strict;
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11
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12 use Test::More;
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13 use Test::Nginx;
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14
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15 ###############################################################################
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16
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17 select STDERR; $| = 1;
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18 select STDOUT; $| = 1;
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19
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20 my $t = Test::Nginx->new()->write_file_expand('nginx.conf', <<'EOF');
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21
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22 %%TEST_GLOBALS%%
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23
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24 master_process off;
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25 daemon off;
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26
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27 events {
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28 }
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29
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30 http {
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31 %%TEST_GLOBALS_HTTP%%
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32
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33 upstream backend {
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34 server 127.0.0.1:8081;
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35 keepalive 1;
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36 }
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37
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38 server {
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39 listen 127.0.0.1:8080;
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40 server_name localhost;
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41
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42 location / {
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43 fastcgi_pass backend;
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44 fastcgi_keep_conn on;
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45 }
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46 }
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47 }
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48
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49 EOF
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50
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51 $t->run_daemon(\&fastcgi_test_daemon);
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52
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53 eval {
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54 open OLDERR, ">&", \*STDERR; close STDERR;
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55 $t->run();
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56 open STDERR, ">&", \*OLDERR;
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57 };
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58 plan(skip_all => 'no keepalive patches') if $@;
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59
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60 $t->plan(6);
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61
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62 ###############################################################################
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63
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64 like(http_get('/'), qr/SEE-THIS/, 'fastcgi request');
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65 like(http_get('/redir'), qr/302/, 'fastcgi redirect');
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66 like(http_get('/'), qr/^request: 3$/m, 'fastcgi third request');
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67
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68 like(http_get('/single'), qr/^connection: 1$/m, 'single connection used');
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69
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70 # New connection to fastcgi application should be established after HEAD
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71 # requests since nginx doesn't read whole response (as it doesn't need
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72 # body).
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73
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74 unlike(http_head('/head'), qr/SEE-THIS/, 'no data in HEAD');
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75
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76 like(http_get('/after'), qr/^connection: 2$/m, 'new connection after HEAD');
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77
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78 ###############################################################################
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79
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80 # Simple FastCGI responder implementation. Unlike FCGI and FCGI::Async it's
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81 # able to count connections.
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82
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83 # http://www.fastcgi.com/devkit/doc/fcgi-spec.html
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84
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85 sub fastcgi_read_record($) {
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86 my ($socket) = @_;
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87
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88 my ($n, $h, $header);
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89
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90 $n = $socket->read($header, 8);
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91 return undef if !defined $n or $n != 8;
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92
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93 @{$h}{qw/ version type id clen plen /} = unpack("CCnnC", $header);
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94
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95 $n = $socket->read($h->{content}, $h->{clen});
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96 return undef if $n != $h->{clen};
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97
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98 $n = $socket->read($h->{padding}, $h->{plen});
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99 return undef if $n != $h->{plen};
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100
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101 $h->{socket} = $socket;
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102 return $h;
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103 }
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104
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105 sub fastcgi_respond($$) {
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106 my ($h, $body) = @_;
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107
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108 # stdout
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109 $h->{socket}->write(pack("CCnnCx", $h->{version}, 6, $h->{id},
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110 length($body), 0));
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111 $h->{socket}->write($body);
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112
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113 # write some text to stdout and stderr splitted over multiple network
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114 # packets to test if we correctly set pipe length in various places
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115
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116 my $tt = "test text, just for test";
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117
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118 $h->{socket}->write(pack("CCnnCx", $h->{version}, 6, $h->{id},
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119 length($tt . $tt), 0) . $tt);
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120 select(undef, undef, undef, 0.1);
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121 $h->{socket}->write($tt . pack("CC", $h->{version}, 7));
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122 select(undef, undef, undef, 0.1);
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123 $h->{socket}->write(pack("nnCx", $h->{id}, length($tt), 0));
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124 $h->{socket}->write($tt);
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125
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126 # close stdout
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127 $h->{socket}->write(pack("CCnnCx", $h->{version}, 6, $h->{id}, 0, 0));
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128
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129 select(undef, undef, undef, 0.1);
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130
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131 # end request
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132 $h->{socket}->write(pack("CCnnCx", $h->{version}, 3, $h->{id}, 8, 0));
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133 $h->{socket}->write(pack("NCxxx", 0, 0));
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134 }
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135
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136 sub fastcgi_test_daemon {
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137 my $server = IO::Socket::INET->new(
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138 Proto => 'tcp',
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139 LocalAddr => '127.0.0.1:8081',
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140 Listen => 5,
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141 Reuse => 1
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142 )
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143 or die "Can't create listening socket: $!\n";
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144
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145 local $SIG{PIPE} = 'IGNORE';
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146
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147 my $ccount = 0;
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148 my $rcount = 0;
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149
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150 while (my $client = $server->accept()) {
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151 $client->autoflush(1);
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152 Test::Nginx::log_core('||', "fastcgi connection");
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153
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154 $ccount++;
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155
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156 while (my $h = fastcgi_read_record($client)) {
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157 Test::Nginx::log_core('||', "fastcgi record: "
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158 . " $h->{version}, $h->{type}, $h->{id}, "
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159 . "'$h->{content}'");
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160
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161 # skip everything unless stdin, then respond
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162 next if $h->{type} != 5;
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163
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164 $rcount++;
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165
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166 # respond
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167 fastcgi_respond($h, <<EOF);
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168 Location: http://localhost:8080/redirect
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169 Content-Type: text/html
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170
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171 SEE-THIS
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172 request: $rcount
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173 connection: $ccount
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174 EOF
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175 }
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176
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177 close $client;
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178 }
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179 }
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180
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181 ###############################################################################