Mercurial > hg > ngx_http_upstream_keepalive

annotate t/memcached-keepalive.t @ 6:bef88ba0b378

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Keepalive: distinguish between upstream servers by default. Option 'single' may be used if single pool of connections desired for some reason.
author Maxim Dounin <mdounin@mdounin.ru>
date Fri, 24 Oct 2008 02:03:39 +0400
parents ca955a7f651b
children 15530a464dba
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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 plain(skip_all => 'Cache::Memcached not installed') if $@;
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22
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23 my $t = Test::Nginx->new()->has('rewrite')->has_daemon('memcached')->plan(10)
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24 ->write_file_expand('nginx.conf', <<'EOF');
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25
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26 master_process off;
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27 daemon off;
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28
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29 events {
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30 worker_connections 1024;
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31 }
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32
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33 http {
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34 access_log off;
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35
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36 client_body_temp_path %%TESTDIR%%/client_body_temp;
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37 fastcgi_temp_path %%TESTDIR%%/fastcgi_temp;
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38 proxy_temp_path %%TESTDIR%%/proxy_temp;
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39
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40 upstream memd {
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41 server 127.0.0.1:8081;
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42 keepalive 1;
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43 }
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44
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45 upstream memd2 {
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46 server 127.0.0.1:8081;
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47 server 127.0.0.1:8082;
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48 keepalive 1 single;
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49 }
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50
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51 upstream memd3 {
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52 server 127.0.0.1:8081;
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53 server 127.0.0.1:8082;
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54 keepalive 1;
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55 }
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56
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57 upstream memd4 {
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58 server 127.0.0.1:8081;
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59 server 127.0.0.1:8082;
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60 keepalive 10;
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61 }
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62
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63 server {
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64 listen localhost:8080;
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65 server_name localhost;
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66
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67 location / {
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68 set $memcached_key $uri;
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69 memcached_pass memd;
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70 }
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71
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72 location /next {
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73 set $memcached_key $uri;
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74 memcached_next_upstream not_found;
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75 memcached_pass memd;
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76 }
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77
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78 location /memd2 {
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79 set $memcached_key "/";
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80 memcached_pass memd2;
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81 }
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82
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83 location /memd3 {
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84 set $memcached_key "/";
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85 memcached_pass memd3;
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86 }
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87
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88 location /memd4 {
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89 set $memcached_key "/";
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90 memcached_pass memd4;
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91 }
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92 }
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93 }
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94
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95 EOF
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96
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97 $t->run_daemon('memcached', '-l', '127.0.0.1', '-p', '8081');
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98 $t->run_daemon('memcached', '-l', '127.0.0.1', '-p', '8082');
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99 $t->run();
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100
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101 ###############################################################################
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102
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103 my $memd1 = Cache::Memcached->new(servers => [ '127.0.0.1:8081' ]);
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104 my $memd2 = Cache::Memcached->new(servers => [ '127.0.0.1:8082' ]);
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105
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106 $memd1->set('/', 'SEE-THIS');
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107 $memd2->set('/', 'SEE-THIS');
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108
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109 my $total = $memd1->stats()->{total}->{total_connections};
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110
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111 like(http_get('/'), qr/SEE-THIS/, 'keepalive memcached request');
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112 like(http_get('/notfound'), qr/404/, 'keepalive memcached not found');
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113 like(http_get('/next'), qr/404/,
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114 'keepalive not found with memcached_next_upstream');
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115 like(http_get('/'), qr/SEE-THIS/, 'keepalive memcached request again');
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116 like(http_get('/'), qr/SEE-THIS/, 'keepalive memcached request again');
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117 like(http_get('/'), qr/SEE-THIS/, 'keepalive memcached request again');
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118
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119 is($memd1->stats()->{total}->{total_connections}, $total + 1,
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120 'only one connection used');
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121
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122 # two backends with 'single' option - should establish only one connection
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123
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124 $total = $memd1->stats()->{total}->{total_connections} +
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125 $memd2->stats()->{total}->{total_connections};
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126
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127 http_get('/memd2');
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128 http_get('/memd2');
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129 http_get('/memd2');
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130
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131 is($memd1->stats()->{total}->{total_connections} +
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132 $memd2->stats()->{total}->{total_connections}, $total + 1,
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133 'only one connection with two backends and single');
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134
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135 $total = $memd1->stats()->{total}->{total_connections} +
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136 $memd2->stats()->{total}->{total_connections};
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137
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138 # two backends without 'single' option and maximum number of cached
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139 # connections set to 1 - should establish new connection on each request
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140
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141 http_get('/memd3');
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142 http_get('/memd3');
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143 http_get('/memd3');
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144
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145 is($memd1->stats()->{total}->{total_connections} +
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146 $memd2->stats()->{total}->{total_connections}, $total + 3,
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147 '3 connections should be established');
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148
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149 # two backends without 'single' option and maximum number of cached
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150 # connections set to 10 - should establish only two connections (1 per backend)
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151
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152 $total = $memd1->stats()->{total}->{total_connections} +
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153 $memd2->stats()->{total}->{total_connections};
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154
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155 http_get('/memd4');
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156 http_get('/memd4');
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157 http_get('/memd4');
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158
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159 is($memd1->stats()->{total}->{total_connections} +
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160 $memd2->stats()->{total}->{total_connections}, $total + 2,
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161 'connection per backend');
1
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162
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163 ###############################################################################