Mercurial > hg > nginx-tests

annotate stream_upstream_max_conns.t @ 1585:bff287fbf347

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Tests: added proxy_cookie_domain/path tests with "off" parameter.
author Sergey Kandaurov <pluknet@nginx.com>
date Thu, 23 Jul 2020 12:17:39 +0300
parents 3c101e516213
children f3ba4c74de31
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) Nginx, Inc.
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4 # (C) Sergey Kandaurov
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5
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6 # Tests for stream upstream module with max_conns feature.
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7
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8 ###############################################################################
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9
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10 use warnings;
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11 use strict;
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12
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13 use Test::More;
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14
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15 use IO::Select;
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16
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17 BEGIN { use FindBin; chdir($FindBin::Bin); }
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18
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19 use lib 'lib';
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20 use Test::Nginx qw/ :DEFAULT http_end /;
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21
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22 ###############################################################################
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23
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24 select STDERR; $| = 1;
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25 select STDOUT; $| = 1;
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26
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27 my $t = Test::Nginx->new()->has(qw/stream stream_upstream_least_conn/)
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28 ->has(qw/stream_upstream_hash/)->plan(14);
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29
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30 $t->write_file_expand('nginx.conf', <<'EOF');
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31
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32 %%TEST_GLOBALS%%
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33
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34 daemon off;
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35
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36 events {
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37 }
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38
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39 stream {
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40 upstream u_unlim {
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41 server 127.0.0.1:8081 max_conns=0;
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42 server 127.0.0.1:8082;
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43 }
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44 upstream u_lim {
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45 server 127.0.0.1:8081 max_conns=3;
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46 }
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47
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48 upstream u_backup {
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49 server 127.0.0.1:8081 max_conns=2;
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50 server 127.0.0.1:8082 backup;
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51 }
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52 upstream u_backup_lim {
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53 server 127.0.0.1:8081 max_conns=2;
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54 server 127.0.0.1:8082 backup max_conns=3;
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55 }
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56
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57 upstream u_two {
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58 server 127.0.0.1:8081 max_conns=1;
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59 server 127.0.0.1:8082 max_conns=1;
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60 }
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61 upstream u_some {
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62 server 127.0.0.1:8081 max_conns=1;
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63 server 127.0.0.1:8082;
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64 }
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65 upstream u_many {
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66 server 127.0.0.1:8081 max_conns=1;
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67 server 127.0.0.1:8081 max_conns=1;
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68 server 127.0.0.1:8082;
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69 }
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70
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71 upstream u_weight {
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72 server 127.0.0.1:8081 weight=2 max_conns=1;
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73 server 127.0.0.1:8082;
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74 }
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75
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76 upstream u_lc {
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77 least_conn;
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78 server 127.0.0.1:8081 max_conns=1;
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79 server 127.0.0.1:8082;
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80 }
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81 upstream u_lc_backup {
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82 least_conn;
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83 server 127.0.0.1:8081 max_conns=2;
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84 server 127.0.0.1:8082 backup;
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85 }
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86 upstream u_lc_backup_lim {
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87 least_conn;
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88 server 127.0.0.1:8081 max_conns=2;
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89 server 127.0.0.1:8082 backup max_conns=3;
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90 }
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91
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92 upstream u_hash {
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93 hash $remote_addr;
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94 server 127.0.0.1:8081 max_conns=1;
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95 server 127.0.0.1:8082 max_conns=2;
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96 }
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97 upstream u_chash {
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98 hash $remote_addr consistent;
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99 server 127.0.0.1:8081 max_conns=1;
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100 server 127.0.0.1:8082 max_conns=2;
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101 }
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102
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103 server {
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104 listen 127.0.0.1:8086;
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105 proxy_pass u_unlim;
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106 }
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107
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108 server {
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109 listen 127.0.0.1:8087;
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110 proxy_pass u_lim;
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111 }
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112
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113 server {
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114 listen 127.0.0.1:8088;
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115 proxy_pass u_backup;
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116 }
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117
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118 server {
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119 listen 127.0.0.1:8089;
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120 proxy_pass u_backup_lim;
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121 }
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122
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123 server {
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124 listen 127.0.0.1:8090;
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125 proxy_pass u_two;
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126 }
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127
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128 server {
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129 listen 127.0.0.1:8091;
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130 proxy_pass u_some;
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131 }
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132
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133 server {
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134 listen 127.0.0.1:8092;
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135 proxy_pass u_many;
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136 }
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137
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138 server {
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139 listen 127.0.0.1:8093;
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140 proxy_pass u_weight;
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141 }
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142
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143 server {
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144 listen 127.0.0.1:8094;
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145 proxy_pass u_lc;
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146 }
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147
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148 server {
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149 listen 127.0.0.1:8095;
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150 proxy_pass u_lc_backup;
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151 }
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152
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153 server {
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154 listen 127.0.0.1:8096;
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155 proxy_pass u_lc_backup_lim;
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156 }
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157
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158 server {
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159 listen 127.0.0.1:8097;
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160 proxy_pass u_hash;
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161 }
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162
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163 server {
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164 listen 127.0.0.1:8098;
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165 proxy_pass u_chash;
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166 }
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167 }
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168
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169 EOF
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170
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171 $t->run_daemon(\&http_daemon, port(8081), port(8082), port(8085));
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172 $t->run();
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173
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174 $t->waitforsocket('127.0.0.1:' . port(8081));
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175 $t->waitforsocket('127.0.0.1:' . port(8082));
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176 $t->waitforsocket('127.0.0.1:' . port(8085));
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177
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178 ###############################################################################
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179
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180 my @ports = my ($p1, $p2) = (port(8081), port(8082));
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181
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182 # two peers without max_conns
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183
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184 is(parallel(8086, '/u_unlim?delay=0', 4), "$p1: 2, $p2: 2", 'unlimited');
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185
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186 # reopen connection to test connection subtraction
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187
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188 my @s = http_get_multi(8087, '/u_lim', 2, 1.1);
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189 get(8087, '/close');
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190 push @s, http_get_multi(8087, '/u_lim', 1, 1.1);
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191 get(8085, '/closeall');
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192
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193 is(http_end_multi(\@s), "$p1: 3", 'conn subtraction');
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194
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195 # simple test with limited peer
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196
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197 is(parallel(8087, '/u_lim', 4), "$p1: 3", 'single');
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198
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199 # limited peer with backup peer
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200
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201 is(peers(8088, '/u_backup', 6), "$p1 $p1 $p2 $p2 $p2 $p2", 'backup');
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202
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203 # peer and backup peer, both limited
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204
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205 is(peers(8089, '/u_backup_lim', 6), "$p1 $p1 $p2 $p2 $p2 ", 'backup limited');
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206
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207 # all peers limited
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208
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209 is(parallel(8090, '/u_two', 4), "$p1: 1, $p2: 1", 'all peers');
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210
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211 # subset of peers limited
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212
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213 is(parallel(8091, '/u_some', 4), "$p1: 1, $p2: 3", 'some peers');
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214
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215 # ensure that peer "weight" does not affect its max_conns limit
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216
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217 is(parallel(8093, '/u_weight', 4), "$p1: 1, $p2: 3", 'weight');
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218
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219 # peers with equal server value aggregate max_conns limit
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220
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221 is(parallel(8092, '/u_many', 6), "$p1: 2, $p2: 4", 'equal peer');
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222
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223 # least_conn balancer tests
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224
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225 is(parallel(8094, '/u_lc', 4), "$p1: 1, $p2: 3", 'least_conn');
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226 is(peers(8095, '/u_lc_backup', 6), "$p1 $p1 $p2 $p2 $p2 $p2",
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227 'least_conn backup');
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228 is(peers(8096, '/u_lc_backup_lim', 6), "$p1 $p1 $p2 $p2 $p2 ",
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229 'least_conn backup limited');
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230
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231 # hash balancer tests
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232
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233 is(parallel(8097, '/u_hash', 4), "$p1: 1, $p2: 2", 'hash');
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234 is(parallel(8098, '/u_chash', 4), "$p1: 1, $p2: 2", 'hash consistent');
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235
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236 ###############################################################################
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237
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238 sub peers {
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239 my ($port, $uri, $count) = @_;
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240
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241 my @sockets = http_get_multi($port, $uri, $count, 1.1);
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242 get(8085, '/closeall');
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243
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244 join ' ', map { defined $_ && /X-Port: (\d+)/ && $1 }
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245 map { http_end $_ } (@sockets);
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246 }
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247
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248 sub parallel {
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249 my ($port, $uri, $count) = @_;
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250
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251 my @sockets = http_get_multi($port, $uri, $count);
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252 for (1 .. 20) {
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253 last if IO::Select->new(@sockets)->can_read(3) == $count;
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254 select undef, undef, undef, 0.01;
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255 }
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256 get(8085, '/closeall');
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257 return http_end_multi(\@sockets);
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258 }
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259
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260 sub get {
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261 my ($port, $uri, %opts) = @_;
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262 my $s = IO::Socket::INET->new(
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263 Proto => 'tcp',
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264 PeerAddr => '127.0.0.1',
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265 PeerPort => port($port),
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266 )
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267 or die "Can't connect to nginx: $!\n";
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268
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269 http_get($uri, socket => $s, %opts);
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270 }
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271
1041
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272 sub http_get_multi {
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273 my ($port, $uri, $count, $wait) = @_;
1041
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274 my @sockets;
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275
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diff changeset
276 for (0 .. $count - 1) {
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277 $sockets[$_] = get($port, $uri, start => 1);
1041
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278 IO::Select->new($sockets[$_])->can_read($wait) if $wait;
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279 }
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280
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281 return @sockets;
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282 }
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283
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284 sub http_end_multi {
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285 my ($sockets) = @_;
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286 my %ports;
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287
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288 for my $sock (@$sockets) {
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289 my $r = http_end($sock);
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290 if ($r && $r =~ /X-Port: (\d+)/) {
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291 $ports{$1} = 0 unless defined $ports{$1};
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292 $ports{$1}++;
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293 }
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294 close $sock;
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295 }
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296
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297 my @keys = map { my $p = $_; grep { $p == $_ } keys %ports } @ports;
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298 return join ', ', map { $_ . ": " . $ports{$_} } @keys;
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299 }
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300
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301 ###############################################################################
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302
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diff changeset
303 sub http_daemon {
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304 my (@ports) = @_;
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305 my (@socks, @clients);
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306
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diff changeset
307 for my $port (@ports) {
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308 my $server = IO::Socket::INET->new(
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309 Proto => 'tcp',
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310 LocalHost => "127.0.0.1:$port",
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311 Listen => 42,
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312 Reuse => 1
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diff changeset
313 )
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314 or die "Can't create listening socket: $!\n";
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315 push @socks, $server;
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316 }
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317
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diff changeset
318 my $sel = IO::Select->new(@socks);
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319 my $skip = 4;
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320 my $count = 0;
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321
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diff changeset
322 local $SIG{PIPE} = 'IGNORE';
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323
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parents:
diff changeset
324 OUTER:
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diff changeset
325 while (my @ready = $sel->can_read) {
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diff changeset
326 foreach my $fh (@ready) {
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diff changeset
327 if (grep $_ == $fh, @socks) {
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328 my $new = $fh->accept;
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329 $new->autoflush(1);
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330 $sel->add($new);
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diff changeset
331 $count++;
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parents:
diff changeset
332
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parents:
diff changeset
333 } else {
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diff changeset
334 my @busy = grep { $_->sockport() } @ready;
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diff changeset
335
187524328926 Tests: upstream max_conns tests.
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diff changeset
336 # finish other handles
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diff changeset
337 if ($fh->sockport() == port(8085) && @busy > 1
187524328926 Tests: upstream max_conns tests.
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parents:
diff changeset
338 && grep $_->sockport() != port(8085),
187524328926 Tests: upstream max_conns tests.
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parents:
diff changeset
339 @busy)
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parents:
diff changeset
340 {
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parents:
diff changeset
341 next;
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parents:
diff changeset
342 }
187524328926 Tests: upstream max_conns tests.
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parents:
diff changeset
343
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diff changeset
344 # late events in other handles
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diff changeset
345 if ($fh->sockport() == port(8085) && @busy == 1
187524328926 Tests: upstream max_conns tests.
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parents:
diff changeset
346 && $count > 1 && $skip-- > 0)
187524328926 Tests: upstream max_conns tests.
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parents:
diff changeset
347 {
187524328926 Tests: upstream max_conns tests.
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diff changeset
348 select undef, undef, undef, 0.1;
187524328926 Tests: upstream max_conns tests.
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diff changeset
349 next OUTER;
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parents:
diff changeset
350 }
187524328926 Tests: upstream max_conns tests.
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parents:
diff changeset
351
187524328926 Tests: upstream max_conns tests.
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parents:
diff changeset
352 my $rv = process_socket($fh, \@clients);
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
353 if ($rv == 1) {
187524328926 Tests: upstream max_conns tests.
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parents:
diff changeset
354 $sel->remove($fh);
187524328926 Tests: upstream max_conns tests.
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parents:
diff changeset
355 $fh->close;
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
356 }
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
357 if ($rv == 2) {
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
358 for (@clients) {
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
359 $sel->remove($_);
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
360 $_->close;
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
361 }
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
362 $sel->remove($fh);
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
363 $fh->close;
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
364 $skip = 4;
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
365 }
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
366 $count--;
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
367 }
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
368 }
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
369 }
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
370 }
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
371
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
372 # Returns true to close connection
187524328926 Tests: upstream max_conns tests.
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parents:
diff changeset
373
187524328926 Tests: upstream max_conns tests.
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parents:
diff changeset
374 sub process_socket {
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
375 my ($client, $saved) = @_;
187524328926 Tests: upstream max_conns tests.
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parents:
diff changeset
376 my $port = $client->sockport();
187524328926 Tests: upstream max_conns tests.
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parents:
diff changeset
377
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
378 my $headers = '';
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
379 my $uri = '';
187524328926 Tests: upstream max_conns tests.
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parents:
diff changeset
380
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
381 while (<$client>) {
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
382 $headers .= $_;
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
383 last if (/^\x0d?\x0a?$/);
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
384 }
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
385 return 1 if $headers eq '';
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
386
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
387 $uri = $1 if $headers =~ /^\S+\s+([^ ]+)\s+HTTP/i;
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
388 return 1 if $uri eq '';
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
389
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
390 Test::Nginx::log_core('||', "$port: response, 200");
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
391 print $client <<EOF;
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
392 HTTP/1.1 200 OK
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
393 X-Port: $port
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
394
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
395 OK
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
396 EOF
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
397
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
398 return 2 if $uri =~ /closeall/;
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
399 return 1 if $uri =~ /close/;
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
400
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
401 push @$saved, $client;
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
402 return 0;
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
403 }
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
404
187524328926 Tests: upstream max_conns tests.
Sergey Kandaurov <pluknet@nginx.com>
parents:
diff changeset
405 ###############################################################################