Mercurial > hg > nginx-tests
annotate stream_upstream_max_conns.t @ 1391:62f06d8dfc63
Tests: ported upstream max_conns tests to stream, reduced diffs.
author | Sergey Kandaurov <pluknet@nginx.com> |
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date | Wed, 07 Nov 2018 14:49:34 +0300 |
parents | upstream_max_conns.t@766bcbb632ee |
children | 3c101e516213 |
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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 ->plan(12); |
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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 server { |
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93 listen 127.0.0.1:8086; |
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94 proxy_pass u_unlim; |
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95 } |
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96 |
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97 server { |
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98 listen 127.0.0.1:8087; |
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99 proxy_pass u_lim; |
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100 } |
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101 |
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102 server { |
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103 listen 127.0.0.1:8088; |
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104 proxy_pass u_backup; |
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105 } |
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106 |
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107 server { |
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108 listen 127.0.0.1:8089; |
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109 proxy_pass u_backup_lim; |
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110 } |
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111 |
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112 server { |
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113 listen 127.0.0.1:8090; |
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114 proxy_pass u_two; |
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115 } |
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116 |
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117 server { |
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118 listen 127.0.0.1:8091; |
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119 proxy_pass u_some; |
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120 } |
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121 |
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122 server { |
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123 listen 127.0.0.1:8092; |
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124 proxy_pass u_many; |
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125 } |
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126 |
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127 server { |
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128 listen 127.0.0.1:8093; |
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129 proxy_pass u_weight; |
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130 } |
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131 |
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132 server { |
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133 listen 127.0.0.1:8094; |
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134 proxy_pass u_lc; |
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135 } |
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136 |
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137 server { |
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138 listen 127.0.0.1:8095; |
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139 proxy_pass u_lc_backup; |
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140 } |
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141 |
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142 server { |
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143 listen 127.0.0.1:8096; |
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144 proxy_pass u_lc_backup_lim; |
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145 } |
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146 } |
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147 |
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148 EOF |
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149 |
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150 $t->run_daemon(\&http_daemon, port(8081), port(8082), port(8085)); |
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151 $t->run(); |
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152 |
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153 $t->waitforsocket('127.0.0.1:' . port(8081)); |
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154 $t->waitforsocket('127.0.0.1:' . port(8082)); |
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155 $t->waitforsocket('127.0.0.1:' . port(8085)); |
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156 |
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157 ############################################################################### |
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158 |
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159 my @ports = my ($p1, $p2) = (port(8081), port(8082)); |
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160 |
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161 # two peers without max_conns |
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162 |
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163 is(parallel(8086, '/u_unlim?delay=0', 4), "$p1: 2, $p2: 2", 'unlimited'); |
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164 |
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165 # reopen connection to test connection subtraction |
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166 |
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167 my @s = http_get_multi(8087, '/u_lim', 2, 1.1); |
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168 get(8087, '/close'); |
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169 push @s, http_get_multi(8087, '/u_lim', 1, 1.1); |
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170 get(8085, '/closeall'); |
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171 |
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172 is(http_end_multi(\@s), "$p1: 3", 'conn subtraction'); |
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173 |
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174 # simple test with limited peer |
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175 |
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176 is(parallel(8087, '/u_lim', 4), "$p1: 3", 'single'); |
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177 |
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178 # limited peer with backup peer |
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179 |
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180 is(peers(8088, '/u_backup', 6), "$p1 $p1 $p2 $p2 $p2 $p2", 'backup'); |
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181 |
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182 # peer and backup peer, both limited |
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183 |
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184 is(peers(8089, '/u_backup_lim', 6), "$p1 $p1 $p2 $p2 $p2 ", 'backup limited'); |
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185 |
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186 # all peers limited |
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187 |
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188 is(parallel(8090, '/u_two', 4), "$p1: 1, $p2: 1", 'all peers'); |
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189 |
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190 # subset of peers limited |
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191 |
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192 is(parallel(8091, '/u_some', 4), "$p1: 1, $p2: 3", 'some peers'); |
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193 |
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194 # ensure that peer "weight" does not affect its max_conns limit |
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195 |
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196 is(parallel(8093, '/u_weight', 4), "$p1: 1, $p2: 3", 'weight'); |
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197 |
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198 # peers with equal server value aggregate max_conns limit |
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199 |
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200 is(parallel(8092, '/u_many', 6), "$p1: 2, $p2: 4", 'equal peer'); |
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201 |
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202 # least_conn balancer tests |
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203 |
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204 is(parallel(8094, '/u_lc', 4), "$p1: 1, $p2: 3", 'least_conn'); |
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205 is(peers(8095, '/u_lc_backup', 6), "$p1 $p1 $p2 $p2 $p2 $p2", |
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206 'least_conn backup'); |
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207 is(peers(8096, '/u_lc_backup_lim', 6), "$p1 $p1 $p2 $p2 $p2 ", |
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208 'least_conn backup limited'); |
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209 |
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210 ############################################################################### |
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211 |
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212 sub peers { |
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213 my ($port, $uri, $count) = @_; |
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214 |
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215 my @sockets = http_get_multi($port, $uri, $count, 1.1); |
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216 get(8085, '/closeall'); |
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217 |
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218 join ' ', map { defined $_ && /X-Port: (\d+)/ && $1 } |
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219 map { http_end $_ } (@sockets); |
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220 } |
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221 |
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222 sub parallel { |
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223 my ($port, $uri, $count) = @_; |
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224 |
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225 my @sockets = http_get_multi($port, $uri, $count); |
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226 for (1 .. 20) { |
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227 last if IO::Select->new(@sockets)->can_read(3) == $count; |
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228 select undef, undef, undef, 0.01; |
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229 } |
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230 get(8085, '/closeall'); |
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231 return http_end_multi(\@sockets); |
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232 } |
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233 |
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234 sub get { |
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235 my ($port, $uri, %opts) = @_; |
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236 my $s = IO::Socket::INET->new( |
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237 Proto => 'tcp', |
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238 PeerAddr => '127.0.0.1', |
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239 PeerPort => port($port), |
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240 ) |
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241 or die "Can't connect to nginx: $!\n"; |
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242 |
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243 http_get($uri, socket => $s, %opts); |
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244 } |
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245 |
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246 sub http_get_multi { |
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247 my ($port, $uri, $count, $wait) = @_; |
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248 my @sockets; |
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249 |
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250 for (0 .. $count - 1) { |
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251 $sockets[$_] = get($port, $uri, start => 1); |
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252 IO::Select->new($sockets[$_])->can_read($wait) if $wait; |
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253 } |
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254 |
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255 return @sockets; |
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256 } |
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257 |
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258 sub http_end_multi { |
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259 my ($sockets) = @_; |
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260 my %ports; |
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261 |
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262 for my $sock (@$sockets) { |
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263 my $r = http_end($sock); |
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264 if ($r && $r =~ /X-Port: (\d+)/) { |
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265 $ports{$1} = 0 unless defined $ports{$1}; |
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266 $ports{$1}++; |
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267 } |
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268 close $sock; |
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269 } |
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270 |
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271 my @keys = map { my $p = $_; grep { $p == $_ } keys %ports } @ports; |
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272 return join ', ', map { $_ . ": " . $ports{$_} } @keys; |
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273 } |
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274 |
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275 ############################################################################### |
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276 |
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277 sub http_daemon { |
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278 my (@ports) = @_; |
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279 my (@socks, @clients); |
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280 |
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281 for my $port (@ports) { |
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282 my $server = IO::Socket::INET->new( |
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283 Proto => 'tcp', |
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284 LocalHost => "127.0.0.1:$port", |
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285 Listen => 42, |
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286 Reuse => 1 |
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287 ) |
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288 or die "Can't create listening socket: $!\n"; |
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289 push @socks, $server; |
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290 } |
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291 |
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292 my $sel = IO::Select->new(@socks); |
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293 my $skip = 4; |
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294 my $count = 0; |
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295 |
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296 local $SIG{PIPE} = 'IGNORE'; |
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297 |
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298 OUTER: |
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299 while (my @ready = $sel->can_read) { |
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300 foreach my $fh (@ready) { |
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301 if (grep $_ == $fh, @socks) { |
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302 my $new = $fh->accept; |
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303 $new->autoflush(1); |
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304 $sel->add($new); |
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305 $count++; |
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306 |
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307 } else { |
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308 my @busy = grep { $_->sockport() } @ready; |
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309 |
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310 # finish other handles |
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311 if ($fh->sockport() == port(8085) && @busy > 1 |
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312 && grep $_->sockport() != port(8085), |
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313 @busy) |
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314 { |
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315 next; |
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316 } |
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317 |
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318 # late events in other handles |
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319 if ($fh->sockport() == port(8085) && @busy == 1 |
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320 && $count > 1 && $skip-- > 0) |
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321 { |
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322 select undef, undef, undef, 0.1; |
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323 next OUTER; |
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324 } |
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325 |
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326 my $rv = process_socket($fh, \@clients); |
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327 if ($rv == 1) { |
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328 $sel->remove($fh); |
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329 $fh->close; |
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330 } |
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331 if ($rv == 2) { |
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332 for (@clients) { |
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333 $sel->remove($_); |
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334 $_->close; |
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335 } |
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336 $sel->remove($fh); |
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337 $fh->close; |
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338 $skip = 4; |
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339 } |
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340 $count--; |
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341 } |
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342 } |
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343 } |
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344 } |
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345 |
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346 # Returns true to close connection |
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347 |
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348 sub process_socket { |
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349 my ($client, $saved) = @_; |
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350 my $port = $client->sockport(); |
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351 |
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352 my $headers = ''; |
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353 my $uri = ''; |
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354 |
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355 while (<$client>) { |
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356 $headers .= $_; |
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357 last if (/^\x0d?\x0a?$/); |
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358 } |
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359 return 1 if $headers eq ''; |
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360 |
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361 $uri = $1 if $headers =~ /^\S+\s+([^ ]+)\s+HTTP/i; |
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362 return 1 if $uri eq ''; |
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363 |
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364 Test::Nginx::log_core('||', "$port: response, 200"); |
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365 print $client <<EOF; |
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366 HTTP/1.1 200 OK |
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367 X-Port: $port |
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368 |
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369 OK |
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370 EOF |
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371 |
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372 return 2 if $uri =~ /closeall/; |
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373 return 1 if $uri =~ /close/; |
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374 |
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375 push @$saved, $client; |
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376 return 0; |
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377 } |
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378 |
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379 ############################################################################### |