Mercurial > hg > ngx_http_upstream_keepalive

annotate t/memcached-keepalive.t @ 27:f3b50effc1d4

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Keepalive: add proxy tests.
author Maxim Dounin <mdounin@mdounin.ru>
date Tue, 26 Jul 2011 12:52:34 +0400
parents 2ee28064a04a
children 489c5d4318ff
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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 memcached 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 eval { require Cache::Memcached; };
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21 plan(skip_all => 'Cache::Memcached not installed') if $@;
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22
24
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23 my $t = Test::Nginx->new()->has('rewrite')->has_daemon('memcached')->plan(17)
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24 ->write_file_expand('nginx.conf', <<'EOF');
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25
20
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26 %%TEST_GLOBALS%%
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27
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28 daemon off;
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29
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30 events {
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31 }
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32
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33 http {
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34 %%TEST_GLOBALS_HTTP%%
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35
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36 upstream memd {
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37 server 127.0.0.1:8081;
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38 keepalive 1;
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39 }
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40
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41 upstream memd2 {
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42 server 127.0.0.1:8081;
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43 server 127.0.0.1:8082;
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44 keepalive 1 single;
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45 }
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46
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47 upstream memd3 {
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48 server 127.0.0.1:8081;
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49 server 127.0.0.1:8082;
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50 keepalive 1;
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51 }
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52
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53 upstream memd4 {
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54 server 127.0.0.1:8081;
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55 server 127.0.0.1:8082;
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56 keepalive 10;
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57 }
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58
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59 server {
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60 listen 127.0.0.1:8080;
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61 server_name localhost;
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62
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63 location / {
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64 set $memcached_key $uri;
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65 memcached_pass memd;
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66 }
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67
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68 location /next {
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69 set $memcached_key $uri;
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70 memcached_next_upstream not_found;
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71 memcached_pass memd;
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72 }
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73
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74 location /memd2 {
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75 set $memcached_key "/";
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76 memcached_pass memd2;
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77 }
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78
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79 location /memd3 {
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80 set $memcached_key "/";
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81 memcached_pass memd3;
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82 }
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83
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84 location /memd4 {
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85 set $memcached_key "/";
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86 memcached_pass memd4;
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87 }
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88 }
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89 }
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90
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91 EOF
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92
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93 my $memhelp = `memcached -h`;
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94 my @memopts1 = ();
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95 my @memopts2 = ();
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96
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97 if ($memhelp =~ /repcached/) {
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98 # repcached patches adds additional listen socket memcached
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99 # that should be different too
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100
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101 push @memopts1, '-X', '8091';
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102 push @memopts2, '-X', '8092';
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103 }
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104 if ($memhelp =~ /-U/) {
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105 # UDP ports no longer off by default in memcached 1.2.7+
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106
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107 push @memopts1, '-U', '0';
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108 push @memopts2, '-U', '0';
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109 }
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110
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111 $t->run_daemon('memcached', '-l', '127.0.0.1', '-p', '8081', @memopts1);
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112 $t->run_daemon('memcached', '-l', '127.0.0.1', '-p', '8082', @memopts2);
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113
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114 $t->run();
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115
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116 $t->waitforsocket('127.0.0.1:8081')
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117 or die "Unable to start memcached";
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118 $t->waitforsocket('127.0.0.1:8082')
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119 or die "Unable to start second memcached";
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120
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121 ###############################################################################
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122
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123 my $memd1 = Cache::Memcached->new(servers => [ '127.0.0.1:8081' ]);
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124 my $memd2 = Cache::Memcached->new(servers => [ '127.0.0.1:8082' ]);
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125
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126 $memd1->set('/', 'SEE-THIS');
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127 $memd2->set('/', 'SEE-THIS');
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128 $memd1->set('/big', 'X' x 1000000);
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129
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130 my $total = $memd1->stats()->{total}->{total_connections};
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131
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132 like(http_get('/'), qr/SEE-THIS/, 'keepalive memcached request');
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133 like(http_get('/notfound'), qr/404/, 'keepalive memcached not found');
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134 like(http_get('/next'), qr/404/,
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135 'keepalive not found with memcached_next_upstream');
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136 like(http_get('/'), qr/SEE-THIS/, 'keepalive memcached request again');
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137 like(http_get('/'), qr/SEE-THIS/, 'keepalive memcached request again');
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138 like(http_get('/'), qr/SEE-THIS/, 'keepalive memcached request again');
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139
6
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140 is($memd1->stats()->{total}->{total_connections}, $total + 1,
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141 'only one connection used');
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142
11
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143 # Since nginx doesn't read all data from connection in some situations (head
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144 # requests, post_action, errors writing to client) we have to close such
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145 # connections. Check if we really do close them.
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146
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147 $total = $memd1->stats()->{total}->{total_connections};
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148
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149 unlike(http_head('/'), qr/SEE-THIS/, 'head request');
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150 like(http_get('/'), qr/SEE-THIS/, 'get after head');
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151
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152 is($memd1->stats()->{total}->{total_connections}, $total + 1,
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153 'head request closes connection');
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154
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155 $total = $memd1->stats()->{total}->{total_connections};
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156
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157 unlike(http_head('/big'), qr/XXX/, 'big head');
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158 like(http_get('/'), qr/SEE-THIS/, 'get after big head');
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159
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160 is($memd1->stats()->{total}->{total_connections}, $total + 1,
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161 'big head request closes connection');
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162
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163 # two backends with 'single' option - should establish only one connection
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164
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165 $total = $memd1->stats()->{total}->{total_connections} +
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166 $memd2->stats()->{total}->{total_connections};
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167
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168 http_get('/memd2');
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169 http_get('/memd2');
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170 http_get('/memd2');
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171
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172 is($memd1->stats()->{total}->{total_connections} +
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173 $memd2->stats()->{total}->{total_connections}, $total + 1,
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174 'only one connection with two backends and single');
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175
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176 $total = $memd1->stats()->{total}->{total_connections} +
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177 $memd2->stats()->{total}->{total_connections};
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178
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179 # two backends without 'single' option and maximum number of cached
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180 # connections set to 1 - should establish new connection on each request
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181
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182 http_get('/memd3');
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183 http_get('/memd3');
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184 http_get('/memd3');
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185
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186 is($memd1->stats()->{total}->{total_connections} +
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187 $memd2->stats()->{total}->{total_connections}, $total + 3,
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188 '3 connections should be established');
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189
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190 # two backends without 'single' option and maximum number of cached
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191 # connections set to 10 - should establish only two connections (1 per backend)
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192
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193 $total = $memd1->stats()->{total}->{total_connections} +
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194 $memd2->stats()->{total}->{total_connections};
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195
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196 http_get('/memd4');
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197 http_get('/memd4');
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198 http_get('/memd4');
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199
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200 is($memd1->stats()->{total}->{total_connections} +
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201 $memd2->stats()->{total}->{total_connections}, $total + 2,
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202 'connection per backend');
1
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203
24
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204 $t->stop();
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205
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206 like(`grep -F '[alert]' ${\($t->testdir())}/error.log`, qr/^$/s, 'no alerts');
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207
1
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208 ###############################################################################