Mercurial > hg > nginx-site
annotate xml/ru/docs/http/ngx_http_upstream_module.xml @ 1495:8d134b482cc3
Documented zone usage with many upstreams.
author | Yaroslav Zhuravlev <yar@nginx.com> |
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date | Wed, 27 May 2015 18:06:02 +0300 |
parents | f29398a167d0 |
children | 0b89d1e54e8f |
rev | line source |
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222
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1 <?xml version="1.0"?> |
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2 |
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3 <!-- |
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4 Copyright (C) Igor Sysoev |
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5 Copyright (C) Nginx, Inc. |
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6 --> |
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7 |
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8 <!DOCTYPE module SYSTEM "../../../../dtd/module.dtd"> |
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9 |
292 | 10 <module name="Модуль ngx_http_upstream_module" |
135
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11 link="/ru/docs/http/ngx_http_upstream_module.html" |
589 | 12 lang="ru" |
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13 rev="39"> |
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14 |
110
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15 <section id="summary"> |
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16 |
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17 <para> |
292 | 18 Модуль <literal>ngx_http_upstream_module</literal> |
19 позволяет описывать группы серверов, | |
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20 которые могут использоваться в директивах |
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21 <link doc="ngx_http_proxy_module.xml" id="proxy_pass"/>, |
1181 | 22 <link doc="ngx_http_fastcgi_module.xml" id="fastcgi_pass"/>, |
1194 | 23 <link doc="ngx_http_uwsgi_module.xml" id="uwsgi_pass"/>, |
1181 | 24 <link doc="ngx_http_scgi_module.xml" id="scgi_pass"/> и |
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25 <link doc="ngx_http_memcached_module.xml" id="memcached_pass"/>. |
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26 </para> |
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27 |
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28 </section> |
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29 |
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30 |
292 | 31 <section id="example" name="Пример конфигурации"> |
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32 |
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33 <para> |
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34 <example> |
292 | 35 upstream <emphasis>backend</emphasis> { |
36 server backend1.example.com weight=5; | |
37 server backend2.example.com:8080; | |
38 server unix:/tmp/backend3; | |
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39 |
292 | 40 server backup1.example.com:8080 backup; |
41 server backup2.example.com:8080 backup; | |
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42 } |
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43 |
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44 server { |
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45 location / { |
292 | 46 proxy_pass http://<emphasis>backend</emphasis>; |
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47 } |
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48 } |
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49 </example> |
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50 </para> |
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51 |
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52 <para> |
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53 Динамически настраиваемая группа, |
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54 доступна как часть |
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55 <commercial_version>коммерческой подписки</commercial_version>: |
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56 <example> |
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57 resolver 10.0.0.1; |
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58 |
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59 upstream <emphasis>dynamic</emphasis> { |
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60 zone upstream_dynamic 64k; |
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61 |
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62 server backend1.example.com weight=5; |
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63 server backend2.example.com:8080 fail_timeout=5s slow_start=30s; |
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64 server 192.0.2.1 max_fails=3; |
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65 server backend3.example.com resolve; |
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66 |
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67 server backup1.example.com:8080 backup; |
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68 server backup2.example.com:8080 backup; |
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69 } |
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70 |
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71 server { |
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72 location / { |
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73 proxy_pass http://<emphasis>dynamic</emphasis>; |
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74 health_check; |
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75 } |
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76 } |
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77 </example> |
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78 </para> |
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79 |
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80 </section> |
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81 |
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82 |
292 | 83 <section id="directives" name="Директивы"> |
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84 |
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85 <directive name="upstream"> |
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86 <syntax block="yes"><value>название</value></syntax> |
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87 <default/> |
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88 <context>http</context> |
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89 |
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90 <para> |
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91 Описывает группу серверов. |
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92 Серверы могут слушать на разных портах. |
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93 Кроме того, можно одновременно использовать серверы, |
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94 слушающие на TCP- и UNIX-сокетах. |
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95 </para> |
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96 |
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97 <para> |
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98 Пример: |
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99 <example> |
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100 upstream backend { |
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101 server backend1.example.com weight=5; |
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102 server 127.0.0.1:8080 max_fails=3 fail_timeout=30s; |
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103 server unix:/tmp/backend3; |
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104 |
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105 server backup1.example.com backup; |
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106 } |
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107 </example> |
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108 </para> |
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109 |
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110 <para> |
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111 По умолчанию запросы распределяются по серверам циклически |
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112 (в режиме round-robin) с учётом весов серверов. |
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113 В вышеприведённом примере каждые 7 запросов будут распределены так: |
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114 5 запросов на <literal>backend1.example.com</literal> |
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115 и по одному запросу на второй и третий серверы. |
966 | 116 Если при попытке работы с сервером происходит ошибка, то запрос |
117 передаётся следующему серверу, и так далее до тех пор, пока не будут опробованы | |
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118 все работающие серверы. |
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119 Если не удастся получить успешный ответ |
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120 ни от одного из серверов, то клиенту будет возвращён результат работы |
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121 с последним сервером. |
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122 </para> |
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123 |
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124 </directive> |
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125 |
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126 |
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127 <directive name="server"> |
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128 <syntax><value>адрес</value> [<value>параметры</value>]</syntax> |
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129 <default/> |
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130 <context>upstream</context> |
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131 |
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132 <para> |
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133 Задаёт <value>адрес</value> и другие <value>параметры</value> |
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134 сервера. |
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135 Адрес может быть указан в виде доменного имени или IP-адреса, |
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136 и необязательного порта, или в виде пути UNIX-сокета, который |
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137 указывается после префикса “<literal>unix:</literal>”. |
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138 Если порт не указан, используется порт 80. |
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139 Доменное имя, которому соответствует несколько IP-адресов, |
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140 задаёт сразу несколько серверов. |
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141 </para> |
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142 |
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143 <para> |
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144 Могут быть заданы следующие параметры: |
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145 <list type="tag"> |
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146 |
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147 <tag-name id="weight"> |
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148 <literal>weight</literal>=<value>число</value> |
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149 </tag-name> |
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150 <tag-desc> |
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151 задаёт вес сервера, по умолчанию 1. |
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152 </tag-desc> |
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153 |
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154 <tag-name id="max_fails"> |
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155 <literal>max_fails</literal>=<value>число</value> |
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156 </tag-name> |
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157 <tag-desc> |
966 | 158 задаёт число неудачных попыток работы с сервером, которые должны произойти |
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159 в течение времени, заданного параметром <literal>fail_timeout</literal>, |
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160 чтобы сервер считался недоступным на период времени, также заданный |
966 | 161 параметром <literal>fail_timeout</literal>. |
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162 По умолчанию число попыток устанавливается равным 1. |
966 | 163 Нулевое значение отключает учёт попыток. |
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164 Что считается неудачной попыткой, определяется директивами |
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165 <link doc="ngx_http_proxy_module.xml" id="proxy_next_upstream"/>, |
1181 | 166 <link doc="ngx_http_fastcgi_module.xml" id="fastcgi_next_upstream"/>, |
1194 | 167 <link doc="ngx_http_uwsgi_module.xml" id="uwsgi_next_upstream"/>, |
1181 | 168 <link doc="ngx_http_scgi_module.xml" id="scgi_next_upstream"/> и |
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169 <link doc="ngx_http_memcached_module.xml" id="memcached_next_upstream"/>. |
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170 </tag-desc> |
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171 |
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172 <tag-name id="fail_timeout"> |
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173 <literal>fail_timeout</literal>=<value>время</value> |
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174 </tag-name> |
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175 <tag-desc> |
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176 задаёт |
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177 <list type="bullet"> |
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178 |
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179 <listitem> |
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180 время, в течение которого должно произойти заданное число неудачных |
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181 попыток работы с сервером для того, чтобы сервер считался недоступным; |
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182 </listitem> |
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183 |
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184 <listitem> |
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185 и время, в течение которого сервер будет считаться недоступным. |
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186 </listitem> |
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187 |
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188 </list> |
966 | 189 По умолчанию параметр равен 10 секундам. |
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190 </tag-desc> |
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191 |
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192 <tag-name id="backup"> |
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193 <literal>backup</literal> |
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194 </tag-name> |
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195 <tag-desc> |
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196 помечает сервер как запасной сервер. |
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197 На него будут передаваться запросы в случае, если не работают основные серверы. |
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198 </tag-desc> |
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199 |
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200 <tag-name id="down"> |
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201 <literal>down</literal> |
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202 </tag-name> |
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203 <tag-desc> |
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204 помечает сервер как постоянно недоступный. |
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205 </tag-desc> |
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206 |
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207 </list> |
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208 </para> |
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209 |
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210 <para> |
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211 Кроме того, |
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212 следующие параметры доступны как часть |
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213 <commercial_version>коммерческой подписки</commercial_version>: |
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214 <list type="tag"> |
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215 |
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216 <tag-name id="max_conns"> |
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217 <literal>max_conns</literal>=<value>число</value> |
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218 </tag-name> |
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219 <tag-desc> |
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220 ограничивает максимальное <value>число</value> одновременных соединений |
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221 к проксируемому серверу (1.5.9). |
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222 Значение по умолчанию равно 0 и означает, что ограничения нет. |
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223 </tag-desc> |
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224 |
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225 <tag-name id="resolve"> |
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226 <literal>resolve</literal> |
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227 </tag-name> |
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228 <tag-desc> |
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229 отслеживает изменения IP-адресов, соответствующих доменному имени сервера, |
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230 и автоматически изменяет конфигурацию группы |
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231 без необходимости перезапуска nginx (1.5.12). |
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232 <para> |
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233 Для работы этого параметра |
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234 директива <link doc="ngx_http_core_module.xml" id="resolver"/> |
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235 должна быть задана в блоке |
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236 <link doc="ngx_http_core_module.xml" id="http"/>. |
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237 Пример: |
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238 <example> |
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239 http { |
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240 resolver 10.0.0.1; |
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241 |
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242 upstream u { |
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243 zone ...; |
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244 ... |
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245 server example.com resolve; |
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246 } |
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247 } |
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248 </example> |
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249 </para> |
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250 </tag-desc> |
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251 |
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252 <tag-name id="route"> |
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253 <literal>route</literal>=<value>строка</value> |
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254 </tag-name> |
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255 <tag-desc> |
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256 задаёт имя маршрута к серверу. |
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257 </tag-desc> |
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258 |
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259 <tag-name id="slow_start"> |
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260 <literal>slow_start</literal>=<value>время</value> |
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261 </tag-name> |
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262 <tag-desc> |
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263 задаёт <value>время</value>, в течение которого вес сервера |
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264 восстановится от нуля до своего номинального значения в ситуации, когда |
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265 неработоспособный (unhealthy) сервер вновь становится работоспособным |
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266 (<link id="health_check">healthy</link>) |
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267 или когда сервер становится доступным по прошествии времени, |
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268 в течение которого он считался <link id="fail_timeout">недоступным</link>. |
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269 Значение по умолчанию равно нулю и означает, что медленный старт выключен. |
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270 </tag-desc> |
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271 |
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272 </list> |
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273 </para> |
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274 |
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275 <para> |
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276 <note> |
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277 Если в группе только один сервер, параметры <literal>max_fails</literal>, |
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278 <literal>fail_timeout</literal> и <literal>slow_start</literal> |
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279 игнорируются и такой сервер никогда не будет считаться недоступным. |
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280 </note> |
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281 </para> |
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282 |
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283 </directive> |
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284 |
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285 |
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286 <directive name="zone"> |
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287 <syntax><value>имя</value> [<value>размер</value>]</syntax> |
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288 <default/> |
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289 <context>upstream</context> |
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290 <appeared-in>1.9.0</appeared-in> |
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291 |
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292 <para> |
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293 Задаёт <value>имя</value> и <value>размер</value> зоны разделяемой памяти, |
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294 в которой хранятся конфигурация группы и её рабочее состояние, |
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295 разделяемые между рабочими процессами. |
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296 В одной и той же зоне могут быть сразу несколько групп. |
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297 В этом случае достаточно указать <value>размер</value> только один раз. |
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298 </para> |
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299 |
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300 <para> |
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301 Дополнительно, как часть |
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302 <commercial_version>коммерческой подписки</commercial_version>, |
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303 в таких группах для изменения состава группы |
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304 или настроек отдельных серверов |
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305 нет необходимости перезапускать nginx. |
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306 Конфигурация доступна через специальный location, |
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307 в котором указана директива |
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308 <link doc="ngx_http_upstream_conf_module.xml" id="upstream_conf"/>. |
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309 </para> |
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310 |
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311 </directive> |
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312 |
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313 |
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314 <directive name="hash"> |
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315 <syntax><value>ключ</value> [<literal>consistent</literal>]</syntax> |
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316 <default/> |
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317 <context>upstream</context> |
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318 <appeared-in>1.7.2</appeared-in> |
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319 |
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320 <para> |
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321 Задаёт метод балансировки нагрузки для группы, при котором |
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322 соответствие клиента серверу определяется при помощи |
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323 хэшированного значения <value>ключа</value>. |
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324 В качестве <value>ключа</value> может использоваться |
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325 текст, переменные и их комбинации. |
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326 Следует отметить, что любое добавление или удаление серверов в группе |
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327 может привести к перераспределению большинства ключей на другие серверы. |
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328 Метод совместим с библиотекой Perl |
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329 <link url="http://search.cpan.org/perldoc?Cache%3A%3AMemcached">Cache::Memcached</link>. |
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330 </para> |
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331 |
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332 <para> |
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333 Если задан параметр <literal>consistent</literal>, то вместо |
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334 вышеописанного метода будет использоваться метод консистентного хэширования |
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335 <link url="http://www.last.fm/user/RJ/journal/2007/04/10/392555/">ketama</link>. |
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336 Метод гарантирует, что при добавлении сервера в группу или его удалении |
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337 на другие серверы будет перераспределено минимальное число ключей. |
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338 Применение метода для кэширующих серверов обеспечивает |
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339 больший процент попаданий в кэш. |
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340 Метод совместим с библиотекой Perl |
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341 <link url="http://search.cpan.org/perldoc?Cache%3A%3AMemcached%3A%3AFast">Cache::Memcached::Fast</link> |
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342 при значении параметра <value>ketama_points</value> равным 160. |
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343 </para> |
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344 |
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345 </directive> |
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346 |
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347 |
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348 <directive name="ip_hash"> |
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349 <syntax/> |
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350 <default/> |
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351 <context>upstream</context> |
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352 |
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353 <para> |
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354 Задаёт для группы метод балансировки нагрузки, при котором запросы |
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355 распределяются по серверам на основе IP-адресов клиентов. |
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356 В качестве ключа для хэширования используются первые три |
542
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357 октета IPv4-адреса клиента или IPv6-адрес клиента целиком. |
292 | 358 Метод гарантирует, что запросы одного и того же клиента |
359 будут всегда передаваться на один и тот же сервер. | |
1240
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360 Если же этот сервер будет считаться недоступным, |
292 | 361 то запросы этого клиента будут передаваться на другой сервер. |
362 С большой долей вероятности это также будет один и тот же сервер. | |
542
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363 <note> |
566 | 364 IPv6-адреса поддерживаются начиная с версий 1.3.2 и 1.2.2. |
542
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365 </note> |
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366 </para> |
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367 |
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368 <para> |
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369 Если один из серверов нужно убрать на некоторое время, то для сохранения |
292 | 370 текущего хэширования IP-адресов клиентов этот сервер нужно пометить |
371 параметром <literal>down</literal>. | |
76
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372 </para> |
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373 |
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374 <para> |
292 | 375 Пример: |
76
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376 <example> |
292 | 377 upstream backend { |
76
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378 ip_hash; |
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379 |
292 | 380 server backend1.example.com; |
381 server backend2.example.com; | |
382 server backend3.example.com <emphasis>down</emphasis>; | |
383 server backend4.example.com; | |
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384 } |
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385 </example> |
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386 </para> |
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387 |
526
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388 <para> |
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389 <note> |
566 | 390 До версий 1.3.1 и 1.2.2 для серверов, использующих метод балансировки нагрузки |
526
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391 <literal>ip_hash</literal>, нельзя было задать вес. |
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392 </note> |
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393 </para> |
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394 |
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395 </directive> |
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396 |
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397 |
316
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398 <directive name="keepalive"> |
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399 <syntax><value>соединения</value></syntax> |
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400 <default/> |
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401 <context>upstream</context> |
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402 <appeared-in>1.1.4</appeared-in> |
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403 |
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404 <para> |
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405 Задействует кэш соединений для группы серверов. |
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406 </para> |
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407 |
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408 <para> |
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409 Параметр <value>соединения</value> устанавливает максимальное число |
654
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Refined the text about cache of connections to upstream servers.
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589
diff
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410 неактивных постоянных соединений с серверами группы, которые будут |
841118e33f41
Refined the text about cache of connections to upstream servers.
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589
diff
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411 сохраняться в кэше каждого рабочего процесса. |
841118e33f41
Refined the text about cache of connections to upstream servers.
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589
diff
changeset
|
412 При превышении этого числа наиболее давно не используемые соединения |
841118e33f41
Refined the text about cache of connections to upstream servers.
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diff
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413 закрываются. |
316
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Documented the following directives: "keepalive", "proxy_http_version",
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414 <note> |
654
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Refined the text about cache of connections to upstream servers.
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589
diff
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|
415 Следует особо отметить, что директива <literal>keepalive</literal> |
841118e33f41
Refined the text about cache of connections to upstream servers.
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589
diff
changeset
|
416 не ограничивает общее число соединений с серверами группы, которые |
841118e33f41
Refined the text about cache of connections to upstream servers.
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589
diff
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|
417 рабочие процессы nginx могут открыть. |
966 | 418 Параметр <value>соединения</value> следует устанавливать достаточно |
419 консервативно, чтобы серверы группы по-прежнему могли обрабатывать | |
420 новые входящие соединения. | |
316
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Documented the following directives: "keepalive", "proxy_http_version",
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421 </note> |
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Documented the following directives: "keepalive", "proxy_http_version",
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422 </para> |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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423 |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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424 <para> |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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425 Пример конфигурации группы серверов memcached с постоянными соединениями: |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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426 <example> |
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Documented the following directives: "keepalive", "proxy_http_version",
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427 upstream memcached_backend { |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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428 server 127.0.0.1:11211; |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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|
429 server 10.0.0.2:11211; |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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diff
changeset
|
430 |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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changeset
|
431 keepalive 32; |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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diff
changeset
|
432 } |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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diff
changeset
|
433 |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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diff
changeset
|
434 server { |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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diff
changeset
|
435 ... |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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diff
changeset
|
436 |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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diff
changeset
|
437 location /memcached/ { |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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|
438 set $memcached_key $uri; |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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|
439 memcached_pass memcached_backend; |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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diff
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|
440 } |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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diff
changeset
|
441 |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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diff
changeset
|
442 } |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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diff
changeset
|
443 </example> |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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diff
changeset
|
444 </para> |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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diff
changeset
|
445 |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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diff
changeset
|
446 <para> |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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diff
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|
447 Для HTTP директиву |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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|
448 <link doc="ngx_http_proxy_module.xml" id="proxy_http_version"/> |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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diff
changeset
|
449 следует установить в “<literal>1.1</literal>”, |
367
f4033b9bc4ec
- Removed unnecessary instances of unbreakable space.
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parents:
325
diff
changeset
|
450 а поле заголовка <header>Connection</header> — очистить: |
316
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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diff
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|
451 <example> |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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diff
changeset
|
452 upstream http_backend { |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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diff
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|
453 server 127.0.0.1:8080; |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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diff
changeset
|
454 |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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diff
changeset
|
455 keepalive 16; |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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diff
changeset
|
456 } |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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diff
changeset
|
457 |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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diff
changeset
|
458 server { |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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diff
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|
459 ... |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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diff
changeset
|
460 |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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diff
changeset
|
461 location /http/ { |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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|
462 proxy_pass http://http_backend; |
1fb1c077658b
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|
463 proxy_http_version 1.1; |
1fb1c077658b
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|
464 proxy_set_header Connection ""; |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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|
465 ... |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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diff
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|
466 } |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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diff
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|
467 } |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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diff
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|
468 </example> |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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diff
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|
469 </para> |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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diff
changeset
|
470 |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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diff
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|
471 <para> |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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diff
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|
472 <note> |
1fb1c077658b
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diff
changeset
|
473 Хоть это и не рекомендуется, но также возможно использование постоянных |
966 | 474 соединений с HTTP/1.0, путём передачи поля заголовка |
316
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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diff
changeset
|
475 <header>Connection: Keep-Alive</header> серверу группы. |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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diff
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|
476 </note> |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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diff
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|
477 </para> |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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diff
changeset
|
478 |
1fb1c077658b
Documented the following directives: "keepalive", "proxy_http_version",
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diff
changeset
|
479 <para> |
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Documented the following directives: "keepalive", "proxy_http_version",
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|
480 Для работы постоянных соединений с FastCGI-серверами потребуется |
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|
481 включить директиву |
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|
482 <link doc="ngx_http_fastcgi_module.xml" id="fastcgi_keep_conn"/>: |
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|
483 <example> |
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|
484 upstream fastcgi_backend { |
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|
485 server 127.0.0.1:9000; |
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|
486 |
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Documented the following directives: "keepalive", "proxy_http_version",
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diff
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|
487 keepalive 8; |
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|
488 } |
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diff
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|
489 |
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Documented the following directives: "keepalive", "proxy_http_version",
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diff
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|
490 server { |
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Documented the following directives: "keepalive", "proxy_http_version",
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|
491 ... |
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Documented the following directives: "keepalive", "proxy_http_version",
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diff
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|
492 |
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Documented the following directives: "keepalive", "proxy_http_version",
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diff
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|
493 location /fastcgi/ { |
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Documented the following directives: "keepalive", "proxy_http_version",
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diff
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|
494 fastcgi_pass fastcgi_backend; |
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|
495 fastcgi_keep_conn on; |
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Documented the following directives: "keepalive", "proxy_http_version",
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|
496 ... |
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|
497 } |
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|
498 } |
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|
499 </example> |
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|
500 </para> |
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|
501 |
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|
502 <para> |
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503 <note> |
533
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Revamped the upstream documentation somewhat.
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526
diff
changeset
|
504 При использовании методов балансировки нагрузки, отличных |
316
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|
505 от стандартного round-robin, следует активировать их до |
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|
506 директивы <literal>keepalive</literal>. |
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507 </note> |
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|
508 |
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|
509 <note> |
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|
510 Протоколы SCGI и uwsgi не определяют семантику постоянных соединений. |
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|
511 </note> |
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512 </para> |
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|
513 |
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diff
changeset
|
514 </directive> |
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|
515 |
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|
516 |
1125
9a95b9026a16
Upstream: reallocated the "queue" directive.
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diff
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|
517 <directive name="least_conn"> |
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Upstream: reallocated the "queue" directive.
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|
518 <syntax/> |
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diff
changeset
|
519 <default/> |
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|
520 <context>upstream</context> |
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Upstream: reallocated the "queue" directive.
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diff
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|
521 <appeared-in>1.3.1</appeared-in> |
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Upstream: reallocated the "queue" directive.
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|
522 <appeared-in>1.2.2</appeared-in> |
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Upstream: reallocated the "queue" directive.
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|
523 |
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diff
changeset
|
524 <para> |
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diff
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|
525 Задаёт для группы метод балансировки нагрузки, при котором запрос |
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Upstream: reallocated the "queue" directive.
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diff
changeset
|
526 передаётся серверу с наименьшим числом активных соединений, |
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Upstream: reallocated the "queue" directive.
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parents:
1124
diff
changeset
|
527 с учётом весов серверов. |
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Upstream: reallocated the "queue" directive.
Ruslan Ermilov <ru@nginx.com>
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changeset
|
528 Если подходит сразу несколько серверов, они выбираются циклически |
9a95b9026a16
Upstream: reallocated the "queue" directive.
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parents:
1124
diff
changeset
|
529 (в режиме round-robin) с учётом их весов. |
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Upstream: reallocated the "queue" directive.
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diff
changeset
|
530 </para> |
9a95b9026a16
Upstream: reallocated the "queue" directive.
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changeset
|
531 |
9a95b9026a16
Upstream: reallocated the "queue" directive.
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changeset
|
532 </directive> |
9a95b9026a16
Upstream: reallocated the "queue" directive.
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diff
changeset
|
533 |
9a95b9026a16
Upstream: reallocated the "queue" directive.
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parents:
1124
diff
changeset
|
534 |
1450
f5b5eefc43cb
Updated commercial docs for the upcoming release.
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diff
changeset
|
535 <directive name="least_time"> |
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Updated commercial docs for the upcoming release.
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diff
changeset
|
536 <syntax><literal>header</literal> | <literal>last_byte</literal></syntax> |
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Updated commercial docs for the upcoming release.
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|
537 <default/> |
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Updated commercial docs for the upcoming release.
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|
538 <context>upstream</context> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
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diff
changeset
|
539 <appeared-in>1.7.10</appeared-in> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
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parents:
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diff
changeset
|
540 |
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Updated commercial docs for the upcoming release.
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|
541 <para> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
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parents:
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diff
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|
542 Задаёт для группы метод балансировки нагрузки, при котором запрос |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
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parents:
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diff
changeset
|
543 передаётся серверу с наименьшими средним временем ответа и |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
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parents:
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diff
changeset
|
544 числом активных соединений с учётом весов серверов. |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
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parents:
1418
diff
changeset
|
545 Если подходит сразу несколько серверов, то они выбираются циклически |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
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diff
changeset
|
546 (в режиме round-robin) с учётом их весов. |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
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diff
changeset
|
547 </para> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
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parents:
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diff
changeset
|
548 |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
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parents:
1418
diff
changeset
|
549 <para> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
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parents:
1418
diff
changeset
|
550 Если указан параметр <literal>header</literal>, |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1418
diff
changeset
|
551 то учитывается время получения |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
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parents:
1418
diff
changeset
|
552 <link id="var_upstream_header_time">заголовка ответа</link>. |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
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parents:
1418
diff
changeset
|
553 Если указан параметр <literal>last_byte</literal>, то учитывается |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
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parents:
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diff
changeset
|
554 время получения <link id="var_upstream_response_time">всего ответа</link>. |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
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parents:
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diff
changeset
|
555 </para> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1418
diff
changeset
|
556 |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1418
diff
changeset
|
557 <para> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
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parents:
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diff
changeset
|
558 <note> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
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parents:
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diff
changeset
|
559 Эта директива доступна как часть |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
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parents:
1418
diff
changeset
|
560 <commercial_version>коммерческой подписки</commercial_version>. |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
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parents:
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diff
changeset
|
561 </note> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
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diff
changeset
|
562 </para> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
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diff
changeset
|
563 |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
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parents:
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diff
changeset
|
564 </directive> |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
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parents:
1418
diff
changeset
|
565 |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1418
diff
changeset
|
566 |
1242
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
567 <directive name="health_check"> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
568 <syntax>[<value>параметры</value>]</syntax> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
569 <default/> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
570 <context>location</context> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
571 |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
572 <para> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
573 Активирует периодические проверки работоспособности серверов в |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
574 <link id="upstream">группе</link>, указанной в содержащем location. |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
575 </para> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
576 |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
577 <para> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
578 Могут быть заданы следующие необязательные параметры: |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
579 <list type="tag"> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
580 |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
581 <tag-name id="interval"> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
582 <literal>interval</literal>=<value>время</value> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
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parents:
1241
diff
changeset
|
583 </tag-name> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
584 <tag-desc> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
585 задаёт интервал между двумя последовательными проверками, |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
586 по умолчанию 5 секунд; |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
587 </tag-desc> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
588 |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
589 <tag-name id="fails"> |
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590 <literal>fails</literal>=<value>число</value> |
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591 </tag-name> |
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592 <tag-desc> |
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593 задаёт число последовательных неуспешных проверок для определённого сервера, |
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594 после которых сервер будет считаться неработоспособным, |
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595 по умолчанию 1; |
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596 </tag-desc> |
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597 |
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598 <tag-name id="passes"> |
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599 <literal>passes</literal>=<value>число</value> |
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600 </tag-name> |
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601 <tag-desc> |
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602 задаёт число последовательных успешных проверок для определённого сервера, |
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603 после которых сервер будет считаться работоспособным, |
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604 по умолчанию 1; |
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605 </tag-desc> |
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606 |
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607 <tag-name id="uri"> |
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608 <literal>uri</literal>=<value>uri</value> |
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609 </tag-name> |
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610 <tag-desc> |
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611 задаёт URI, используемый в запросах, проверяющих работоспособность, |
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612 по умолчанию “<literal>/</literal>”; |
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613 </tag-desc> |
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614 |
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615 <tag-name id="hc_match"> |
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616 <literal>match</literal>=<value>имя</value> |
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617 </tag-name> |
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618 <tag-desc> |
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619 указывает на блок <literal>match</literal> с условиями, которым должен |
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620 удовлетворять ответ, чтобы результат проверки считался успешным; |
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621 по умолчанию код ответа должен быть 2xx или 3xx. |
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622 </tag-desc> |
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623 |
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624 </list> |
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625 </para> |
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626 |
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627 <para> |
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628 В примере |
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629 <example> |
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630 location / { |
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631 proxy_pass http://backend; |
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632 health_check; |
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633 } |
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634 </example> |
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635 каждому серверу группы <literal>backend</literal> |
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636 с интервалом в 5 секунд посылаются запросы “<literal>/</literal>”. |
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637 Если происходит ошибка или таймаут при работе с сервером, или |
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638 код ответа проксируемого сервера не равен |
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639 2xx или 3xx, проверка считается неуспешной и сервер |
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640 признаётся неработоспособным. |
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641 На неработоспособные серверы клиентские запросы передаваться не будут. |
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642 </para> |
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643 |
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644 <para> |
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645 Проверки работоспособности могут тестировать код ответа, |
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646 наличие или отсутствие определённых полей заголовка и их значений, |
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647 а также содержимое тела ответа. |
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648 Тесты настраиваются отдельно при помощи директивы <link id="match"/> |
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649 и указываются в параметре <literal>match</literal>. |
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650 Например: |
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651 <example> |
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652 http { |
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653 server { |
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654 ... |
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655 location / { |
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656 proxy_pass http://backend; |
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657 health_check match=welcome; |
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658 } |
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659 } |
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660 |
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661 match welcome { |
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662 status 200; |
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663 header Content-Type = text/html; |
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664 body ~ "Welcome to nginx!"; |
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665 } |
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666 } |
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667 </example> |
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668 В такой конфигурации успешный ответ на проверочный запрос |
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669 должен иметь код 200, тип содержимого “<literal>text/html</literal>” |
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670 и “<literal>Welcome to nginx!</literal>” в теле ответа. |
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671 </para> |
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672 |
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673 <para> |
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674 Группа должна находиться в <link id="zone">зоне разделяемой памяти</link>. |
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675 </para> |
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676 |
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677 <para> |
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678 Если для группы задано несколько проверок, |
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679 то при любой неуспешной проверке соответствующий сервер будет |
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680 считаться неработоспособным. |
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681 </para> |
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682 |
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683 <para> |
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684 <note> |
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685 Обратите внимание, что при использовании проверок |
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686 большинство переменных имеют пустые значения. |
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687 </note> |
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688 </para> |
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689 |
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690 <para> |
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691 <note> |
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692 Эта директива доступна как часть |
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693 <commercial_version>коммерческой подписки</commercial_version>. |
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
694 </note> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
695 </para> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
696 |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
697 </directive> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
698 |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
699 |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
700 <directive name="match"> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
701 <syntax block="yes"><value>имя</value></syntax> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
702 <default/> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
703 <context>http</context> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
704 |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
705 <para> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
706 Задаёт именованный набор тестов для анализа ответов |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
707 на запросы проверки работоспособности. |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
708 </para> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
709 |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
710 <para> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
711 В ответе могут быть протестированы следующие объекты: |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
712 <list type="tag"> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
713 |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
714 <tag-name><literal>status 200;</literal></tag-name> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
715 <tag-desc>код ответа равен 200</tag-desc> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
716 |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
717 <tag-name><literal>status ! 500;</literal></tag-name> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
718 <tag-desc>код ответа не равен 500</tag-desc> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
719 |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
720 <tag-name><literal>status 200 204;</literal></tag-name> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
721 <tag-desc>код ответа равен 200 или 204</tag-desc> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
722 |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
723 <tag-name><literal>status ! 301 302;</literal></tag-name> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
724 <tag-desc>код ответа не равен ни 301, ни 302</tag-desc> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
725 |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
726 <tag-name><literal>status 200-399;</literal></tag-name> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
727 <tag-desc>код ответа находится в диапазоне от 200 до 399</tag-desc> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
728 |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
729 <tag-name><literal>status ! 400-599;</literal></tag-name> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
730 <tag-desc>код ответа находится вне диапазона от 400 до 599</tag-desc> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
731 |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
732 <tag-name><literal>status 301-303 307;</literal></tag-name> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
733 <tag-desc>код ответа равен 301, 302, 303 или 307</tag-desc> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
734 |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
735 </list> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
736 |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
737 <list type="tag"> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
738 |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
739 <tag-name><literal>header Content-Type = text/html;</literal></tag-name> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
740 <tag-desc> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
741 заголовок содержит <header>Content-Type</header> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
742 со значением <literal>text/html</literal> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
743 </tag-desc> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
744 |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
745 <tag-name><literal>header Content-Type != text/html;</literal></tag-name> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
746 <tag-desc> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
747 заголовок содержит <header>Content-Type</header> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
748 со значением, отличным от <literal>text/html</literal> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
749 </tag-desc> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
750 |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
751 <tag-name><literal>header Connection ~ close;</literal></tag-name> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
752 <tag-desc> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
753 заголовок содержит <header>Connection</header> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
754 со значением, совпадающим с регулярным выражением <literal>close</literal> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
755 </tag-desc> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
756 |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
757 <tag-name><literal>header Connection !~ close;</literal></tag-name> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
758 <tag-desc> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
759 заголовок содержит <header>Connection</header> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
760 со значением, не совпадающим с регулярным выражением <literal>close</literal> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
761 </tag-desc> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
762 |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
763 <tag-name><literal>header Host;</literal></tag-name> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
764 <tag-desc>заголовок содержит <header>Host</header></tag-desc> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
765 |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
766 <tag-name><literal>header ! X-Accel-Redirect;</literal></tag-name> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
767 <tag-desc>заголовок не содержит <header>X-Accel-Redirect</header></tag-desc> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
768 |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
769 </list> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
770 |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
771 <list type="tag"> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
772 |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
773 <tag-name><literal>body ~ "Welcome to nginx!";</literal></tag-name> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
774 <tag-desc> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
775 тело ответа совпадает с регулярным выражением |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
776 “<literal>Welcome to nginx!</literal>” |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
777 </tag-desc> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
778 |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
779 <tag-name><literal>body !~ "Welcome to nginx!";</literal></tag-name> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
780 <tag-desc> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
781 тело ответа не совпадает с регулярным выражением |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
782 “<literal>Welcome to nginx!</literal>” |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
783 </tag-desc> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
784 |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
785 </list> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
786 </para> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
787 |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
788 <para> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
789 Если задано несколько тестов, |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
790 то ответ должен удовлетворять всем тестам. |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
791 <note> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
792 Проверяются только первые 256 Кбайт тела ответа. |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
793 </note> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
794 </para> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
795 |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
796 <para> |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1241
diff
changeset
|
797 Примеры: |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
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798 <example> |
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799 # код ответа 200, тип содержимого "text/html" |
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|
800 # и тело ответа содержит "Welcome to nginx!" |
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|
801 match welcome { |
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Upstream: translated the "health_check" and "match" directives.
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|
802 status 200; |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
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diff
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|
803 header Content-Type = text/html; |
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Upstream: translated the "health_check" and "match" directives.
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|
804 body ~ "Welcome to nginx!"; |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
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|
805 } |
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Upstream: translated the "health_check" and "match" directives.
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|
806 </example> |
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|
807 |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
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|
808 <example> |
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|
809 # код ответа не равен 301, 302, 303 и 307 и заголовок не содержит "Refresh:" |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
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|
810 match not_redirect { |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
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|
811 status ! 301-303 307; |
935fe5eb82c4
Upstream: translated the "health_check" and "match" directives.
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diff
changeset
|
812 header ! Refresh; |
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Upstream: translated the "health_check" and "match" directives.
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diff
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|
813 } |
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Upstream: translated the "health_check" and "match" directives.
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|
814 </example> |
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Upstream: translated the "health_check" and "match" directives.
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|
815 |
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|
816 <example> |
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|
817 # код ответа успешный и сервер не в сервисном режиме |
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818 match server_ok { |
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|
819 status 200-399; |
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Upstream: translated the "health_check" and "match" directives.
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|
820 body !~ "maintenance mode"; |
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|
821 } |
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Upstream: translated the "health_check" and "match" directives.
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|
822 </example> |
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|
823 |
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Upstream: translated the "health_check" and "match" directives.
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|
824 </para> |
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|
825 |
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|
826 <para> |
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|
827 <note> |
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|
828 Эта директива доступна как часть |
935fe5eb82c4
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|
829 <commercial_version>коммерческой подписки</commercial_version>. |
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|
830 </note> |
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|
831 </para> |
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|
832 |
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|
833 </directive> |
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|
834 |
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|
835 |
1122
594093ef96b1
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|
836 <directive name="queue"> |
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|
837 <syntax> |
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|
838 <value>число</value> |
594093ef96b1
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|
839 [<literal>timeout</literal>=<value>время</value>]</syntax> |
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|
840 <default/> |
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Upstream: documented the "queue" directive.
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|
841 <context>upstream</context> |
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|
842 <appeared-in>1.5.12</appeared-in> |
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|
843 |
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Upstream: documented the "queue" directive.
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|
844 <para> |
594093ef96b1
Upstream: documented the "queue" directive.
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|
845 Если при обработке запроса невозможно сразу выбрать сервер группы |
594093ef96b1
Upstream: documented the "queue" directive.
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|
846 и в группе есть серверы, у которых число соединений достигло |
594093ef96b1
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diff
changeset
|
847 ограничения <link id="max_conns"/>, |
594093ef96b1
Upstream: documented the "queue" directive.
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|
848 запрос будет помещён в очередь. |
594093ef96b1
Upstream: documented the "queue" directive.
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|
849 Директива задаёт максимальное число запросов, которые могут одновременно |
594093ef96b1
Upstream: documented the "queue" directive.
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|
850 находиться в очереди. |
594093ef96b1
Upstream: documented the "queue" directive.
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diff
changeset
|
851 Если очередь переполнена |
594093ef96b1
Upstream: documented the "queue" directive.
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diff
changeset
|
852 или за время, задаваемое параметром <literal>timeout</literal>, |
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parents:
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diff
changeset
|
853 так и не удастся выбрать сервер для передачи ему запроса, |
594093ef96b1
Upstream: documented the "queue" directive.
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diff
changeset
|
854 клиенту будет возвращена ошибка. |
594093ef96b1
Upstream: documented the "queue" directive.
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diff
changeset
|
855 </para> |
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diff
changeset
|
856 |
594093ef96b1
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diff
changeset
|
857 <para> |
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changeset
|
858 По умолчанию параметр <literal>timeout</literal> равен 60 секундам. |
594093ef96b1
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diff
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|
859 </para> |
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diff
changeset
|
860 |
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Upstream: documented the "queue" directive.
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diff
changeset
|
861 <para> |
594093ef96b1
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diff
changeset
|
862 <note> |
1128
1594ed379f1f
De-i18n'ed <commercial_version/>.
Ruslan Ermilov <ru@nginx.com>
parents:
1127
diff
changeset
|
863 Эта директива доступна как часть |
1594ed379f1f
De-i18n'ed <commercial_version/>.
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diff
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|
864 <commercial_version>коммерческой подписки</commercial_version>. |
1122
594093ef96b1
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|
865 </note> |
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diff
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|
866 </para> |
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diff
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|
867 |
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diff
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|
868 </directive> |
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|
869 |
1234
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diff
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|
870 |
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|
871 <directive name="sticky"> |
1259
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Upstream: "session learn" sticky method and upstream_conf changes.
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|
872 <syntax> |
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Upstream: "session learn" sticky method and upstream_conf changes.
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|
873 <literal>cookie</literal> <value>имя</value> |
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|
874 [<literal>expires=</literal><value>время</value>] |
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|
875 [<literal>domain=</literal><value>домен</value>] |
1450
f5b5eefc43cb
Updated commercial docs for the upcoming release.
Ruslan Ermilov <ru@nginx.com>
parents:
1418
diff
changeset
|
876 [<literal>httponly</literal>] |
f5b5eefc43cb
Updated commercial docs for the upcoming release.
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parents:
1418
diff
changeset
|
877 [<literal>secure</literal>] |
1259
954dcc02cb63
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diff
changeset
|
878 [<literal>path=</literal><value>путь</value>]</syntax> |
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Upstream: "session learn" sticky method and upstream_conf changes.
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|
879 <syntax> |
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Upstream: "session learn" sticky method and upstream_conf changes.
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|
880 <literal>route</literal> <value>переменная</value> ...</syntax> |
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Upstream: "session learn" sticky method and upstream_conf changes.
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changeset
|
881 <syntax> |
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|
882 <literal>learn</literal> |
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Upstream: "session learn" sticky method and upstream_conf changes.
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|
883 <literal>create=</literal><value>$переменная</value> |
954dcc02cb63
Upstream: "session learn" sticky method and upstream_conf changes.
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parents:
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diff
changeset
|
884 <literal>lookup=</literal><value>$переменная</value> |
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Upstream: "session learn" sticky method and upstream_conf changes.
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parents:
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|
885 <literal>zone=</literal><value>имя</value>:<value>размер</value> |
954dcc02cb63
Upstream: "session learn" sticky method and upstream_conf changes.
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diff
changeset
|
886 [<literal>timeout=</literal><value>время</value>]</syntax> |
1234
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1230
diff
changeset
|
887 <default/> |
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Upstream: translated the "sticky" directive.
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1230
diff
changeset
|
888 <context>upstream</context> |
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Upstream: translated the "sticky" directive.
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parents:
1230
diff
changeset
|
889 <appeared-in>1.5.7</appeared-in> |
314801ed88e7
Upstream: translated the "sticky" directive.
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diff
changeset
|
890 |
314801ed88e7
Upstream: translated the "sticky" directive.
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diff
changeset
|
891 <para> |
314801ed88e7
Upstream: translated the "sticky" directive.
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diff
changeset
|
892 Включает режим привязки сеансов, в котором запросы клиента |
314801ed88e7
Upstream: translated the "sticky" directive.
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parents:
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diff
changeset
|
893 будут передаваться на один и тот же сервер группы. |
1259
954dcc02cb63
Upstream: "session learn" sticky method and upstream_conf changes.
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diff
changeset
|
894 Доступны три метода: |
954dcc02cb63
Upstream: "session learn" sticky method and upstream_conf changes.
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parents:
1243
diff
changeset
|
895 <list type="tag"> |
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Upstream: "session learn" sticky method and upstream_conf changes.
Ruslan Ermilov <ru@nginx.com>
parents:
1243
diff
changeset
|
896 <tag-name id="sticky_cookie"><literal>cookie</literal></tag-name> |
954dcc02cb63
Upstream: "session learn" sticky method and upstream_conf changes.
Ruslan Ermilov <ru@nginx.com>
parents:
1243
diff
changeset
|
897 <tag-desc> |
1234
314801ed88e7
Upstream: translated the "sticky" directive.
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parents:
1230
diff
changeset
|
898 |
314801ed88e7
Upstream: translated the "sticky" directive.
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parents:
1230
diff
changeset
|
899 <para> |
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parents:
1230
diff
changeset
|
900 При использовании метода <literal>cookie</literal> информация о |
314801ed88e7
Upstream: translated the "sticky" directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1230
diff
changeset
|
901 назначенном сервере передаётся в HTTP-куке: |
314801ed88e7
Upstream: translated the "sticky" directive.
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parents:
1230
diff
changeset
|
902 <example> |
314801ed88e7
Upstream: translated the "sticky" directive.
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parents:
1230
diff
changeset
|
903 upstream backend { |
314801ed88e7
Upstream: translated the "sticky" directive.
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parents:
1230
diff
changeset
|
904 server backend1.example.com; |
314801ed88e7
Upstream: translated the "sticky" directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1230
diff
changeset
|
905 server backend2.example.com; |
314801ed88e7
Upstream: translated the "sticky" directive.
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diff
changeset
|
906 |
314801ed88e7
Upstream: translated the "sticky" directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1230
diff
changeset
|
907 sticky cookie srv_id expires=1h domain=.example.com path=/; |
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|
908 } |
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Upstream: translated the "sticky" directive.
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|
909 </example> |
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Upstream: translated the "sticky" directive.
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|
910 </para> |
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|
911 |
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|
912 <para> |
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Upstream: translated the "sticky" directive.
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|
913 Запрос от клиента, ещё не привязанного к определённому серверу, |
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|
914 передаётся на сервер, выбранный согласно настроенному методу балансировки. |
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|
915 Дальнейшие запросы от этого клиента передаются на тот же сервер. |
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|
916 Если назначенный сервер не может обработать запрос, выбирается новый |
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|
917 сервер как если бы клиент не имел привязки к серверу. |
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|
918 </para> |
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|
919 |
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|
920 <para> |
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|
921 Первый параметр задаёт имя куки, которую необходимо установить или проверить. |
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|
922 Дополнительные параметры могут быть следующими: |
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|
923 <list type="tag"> |
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|
924 |
1450
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|
925 <tag-name><literal>expires=</literal><value>время</value></tag-name> |
1234
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|
926 <tag-desc> |
1450
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|
927 Задаёт <value>время</value>, в течение которого браузеру необходимо хранить куку. |
1234
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|
928 Специальное значение <literal>max</literal> устанавливает срок хранения куки до |
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|
929 31 декабря 2037 года 23:55:55 GMT. |
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|
930 Если параметр не указан, то время действия куки ограничивается сессией браузера. |
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|
931 </tag-desc> |
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|
932 |
1450
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|
933 <tag-name><literal>domain=</literal><value>домен</value></tag-name> |
1234
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|
934 <tag-desc> |
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|
935 Задаёт <value>домен</value>, для которого устанавливается кука. |
1234
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|
936 </tag-desc> |
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|
937 |
1450
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|
938 <tag-name><literal>httponly</literal></tag-name> |
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|
939 <tag-desc> |
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|
940 Добавляет атрибут <literal>HttpOnly</literal> к куке (1.7.11). |
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|
941 </tag-desc> |
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|
942 |
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|
943 <tag-name><literal>secure</literal></tag-name> |
1234
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|
944 <tag-desc> |
1450
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|
945 Добавляет атрибут <literal>Secure</literal> к куке (1.7.11). |
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|
946 </tag-desc> |
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|
947 |
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|
948 <tag-name><literal>path=</literal><value>путь</value></tag-name> |
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|
949 <tag-desc> |
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|
950 Задаёт <value>путь</value>, для которого устанавливается кука. |
1234
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|
951 </tag-desc> |
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|
952 |
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|
953 </list> |
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Upstream: translated the "sticky" directive.
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|
954 Если пропущен тот или иной параметр, то соответствующего поля в куке не будет. |
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|
955 </para> |
1259
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|
956 </tag-desc> |
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|
957 |
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|
958 <tag-name id="sticky_route"><literal>route</literal></tag-name> |
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|
959 <tag-desc> |
1234
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|
960 |
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|
961 <para> |
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|
962 При использовании метода <literal>route</literal> проксируемый сервер назначает |
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|
963 клиенту маршрут по получении первого запроса. |
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|
964 Все последующие запросы от этого клиента будут содержать информацию о |
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|
965 маршруте в куке или URI. |
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|
966 Эта информация сравнивается с параметром “<literal>route</literal>” директивы |
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|
967 <link id="server"/> для идентификации сервера, на который |
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|
968 следует проксировать запрос. |
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969 Если назначенный сервер не может обработать запрос, выбирается новый сервер |
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|
970 согласно настроенному методу балансировки как если бы в запросе не было |
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|
971 информации о маршруте. |
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|
972 </para> |
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|
973 |
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|
974 <para> |
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|
975 Параметры метода <literal>route</literal> задают переменные, которые |
1238
763db729e6a4
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diff
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|
976 могут содержать информацию о маршруте. |
1234
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|
977 Первая непустая переменная используется для поиска соответствующего сервера. |
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|
978 </para> |
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|
979 |
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|
980 <para> |
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|
981 Пример: |
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|
982 <example> |
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983 map $cookie_jsessionid $route_cookie { |
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|
984 ~.+\.(?P<route>\w+)$ $route; |
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|
985 } |
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|
986 |
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|
987 map $request_uri $route_uri { |
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988 ~jsessionid=.+\.(?P<route>\w+)$ $route; |
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|
989 } |
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|
990 |
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|
991 upstream backend { |
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|
992 server backend1.example.com route=a; |
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|
993 server backend2.example.com route=b; |
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|
994 |
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|
995 sticky route $route_cookie $route_uri; |
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|
996 } |
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|
997 </example> |
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|
998 В этом примере маршрут берётся из куки “<literal>JSESSIONID</literal>”, |
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|
999 если она присутствует в запросе. |
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|
1000 В противном случае используется маршрут из URI. |
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|
1001 </para> |
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|
1002 |
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|
1003 </tag-desc> |
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|
1004 |
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|
1005 <tag-name id="sticky_learn"><literal>learn</literal></tag-name> |
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1006 <tag-desc> |
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1007 <para> |
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1008 При использовании метода <literal>learn</literal> (1.7.1) nginx |
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1009 анализирует ответы от вышестоящего сервера и запоминает |
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1010 начатые им сессии, которые обычно передаются в HTTP-куке. |
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1011 <example> |
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1012 upstream backend { |
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1013 server backend1.example.com:8080; |
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1014 server backend2.example.com:8081; |
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1015 |
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1016 sticky learn |
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1017 create=$upstream_cookie_sessionid |
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1018 lookup=$cookie_sessionid |
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1019 zone=client_sessions:1m; |
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1020 } |
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1021 </example> |
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1022 |
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1023 В примере выше сервер группы создаёт сессию путём установки |
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|
1024 куки “<literal>SESSIONID</literal>” в своём ответе. |
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1025 Последующие запросы с этой кукой будут передаваться на этот же сервер. |
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1026 Если сервер не может обработать запрос, выбирается новый |
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|
1027 сервер как если бы клиент не имел привязки к серверу. |
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|
1028 </para> |
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|
1029 |
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|
1030 <para> |
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|
1031 Параметры <literal>create</literal> и <literal>lookup</literal> |
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1032 задают переменные, в которых соответственно указывается способ |
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|
1033 создания новых и поиска существующих сессий. |
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Upstream: "session learn" sticky method and upstream_conf changes.
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1034 Оба параметра могут быть указаны больше одного раза |
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|
1035 (в этом случае используется первая непустая переменная). |
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|
1036 </para> |
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|
1037 |
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|
1038 <para> |
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|
1039 Сессии хранятся в зоне разделяемой памяти, <value>имя</value> и |
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Upstream: "session learn" sticky method and upstream_conf changes.
Ruslan Ermilov <ru@nginx.com>
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|
1040 <value>размер</value> которой задаются параметром <literal>zone</literal>. |
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|
1041 Зоны размером в 1 мегабайт достаточно для хранения около 8 тысяч сессий |
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Upstream: "session learn" sticky method and upstream_conf changes.
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diff
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|
1042 на 64-битной платформе. |
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Upstream: "session learn" sticky method and upstream_conf changes.
Ruslan Ermilov <ru@nginx.com>
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|
1043 Сессии, к которым не было обращений в течение времени, заданного параметром |
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Upstream: "session learn" sticky method and upstream_conf changes.
Ruslan Ermilov <ru@nginx.com>
parents:
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diff
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|
1044 <literal>timeout</literal>, удаляются из зоны. |
954dcc02cb63
Upstream: "session learn" sticky method and upstream_conf changes.
Ruslan Ermilov <ru@nginx.com>
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diff
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|
1045 По умолчанию <literal>timeout</literal> равен 10 минутам. |
954dcc02cb63
Upstream: "session learn" sticky method and upstream_conf changes.
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|
1046 </para> |
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|
1047 |
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diff
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|
1048 </tag-desc> |
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diff
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|
1049 </list> |
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|
1050 </para> |
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|
1051 |
1234
314801ed88e7
Upstream: translated the "sticky" directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1052 <para> |
314801ed88e7
Upstream: translated the "sticky" directive.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
1053 <note> |
314801ed88e7
Upstream: translated the "sticky" directive.
Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
1054 Эта директива доступна как часть |
314801ed88e7
Upstream: translated the "sticky" directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1230
diff
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|
1055 <commercial_version>коммерческой подписки</commercial_version>. |
314801ed88e7
Upstream: translated the "sticky" directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1056 </note> |
314801ed88e7
Upstream: translated the "sticky" directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1057 </para> |
314801ed88e7
Upstream: translated the "sticky" directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
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|
1058 |
314801ed88e7
Upstream: translated the "sticky" directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1230
diff
changeset
|
1059 </directive> |
314801ed88e7
Upstream: translated the "sticky" directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1230
diff
changeset
|
1060 |
1237
e0a1a929a458
Upstream: translated the sticky_cookie_insert directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1061 |
e0a1a929a458
Upstream: translated the sticky_cookie_insert directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1234
diff
changeset
|
1062 <directive name="sticky_cookie_insert"> |
e0a1a929a458
Upstream: translated the sticky_cookie_insert directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1234
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changeset
|
1063 <syntax><value>имя</value> |
e0a1a929a458
Upstream: translated the sticky_cookie_insert directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1234
diff
changeset
|
1064 [<literal>expires=</literal><value>время</value>] |
e0a1a929a458
Upstream: translated the sticky_cookie_insert directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1234
diff
changeset
|
1065 [<literal>domain=</literal><value>домен</value>] |
e0a1a929a458
Upstream: translated the sticky_cookie_insert directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1234
diff
changeset
|
1066 [<literal>path=</literal><value>путь</value>]</syntax> |
e0a1a929a458
Upstream: translated the sticky_cookie_insert directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1234
diff
changeset
|
1067 <default/> |
e0a1a929a458
Upstream: translated the sticky_cookie_insert directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1068 <context>upstream</context> |
e0a1a929a458
Upstream: translated the sticky_cookie_insert directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1069 |
e0a1a929a458
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Yaroslav Zhuravlev <yar@nginx.com>
parents:
1234
diff
changeset
|
1070 <para> |
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Upstream: translated the sticky_cookie_insert directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1234
diff
changeset
|
1071 Эта директива устарела начиная с версии 1.5.7. |
e0a1a929a458
Upstream: translated the sticky_cookie_insert directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1234
diff
changeset
|
1072 Вместо неё следует использовать аналогичную директиву |
e0a1a929a458
Upstream: translated the sticky_cookie_insert directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1234
diff
changeset
|
1073 <link id="sticky"/> с изменённым синтаксисом: |
e0a1a929a458
Upstream: translated the sticky_cookie_insert directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1234
diff
changeset
|
1074 <note> |
e0a1a929a458
Upstream: translated the sticky_cookie_insert directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1075 <literal>sticky cookie</literal> <value>имя</value> |
e0a1a929a458
Upstream: translated the sticky_cookie_insert directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1234
diff
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|
1076 [<literal>expires=</literal><value>время</value>] |
e0a1a929a458
Upstream: translated the sticky_cookie_insert directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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|
1077 [<literal>domain=</literal><value>домен</value>] |
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Upstream: translated the sticky_cookie_insert directive.
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parents:
1234
diff
changeset
|
1078 [<literal>path=</literal><value>путь</value>]; |
e0a1a929a458
Upstream: translated the sticky_cookie_insert directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1079 </note> |
e0a1a929a458
Upstream: translated the sticky_cookie_insert directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
1080 </para> |
e0a1a929a458
Upstream: translated the sticky_cookie_insert directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1234
diff
changeset
|
1081 |
e0a1a929a458
Upstream: translated the sticky_cookie_insert directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1234
diff
changeset
|
1082 </directive> |
e0a1a929a458
Upstream: translated the sticky_cookie_insert directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1234
diff
changeset
|
1083 |
76
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
1084 </section> |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
1085 |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
1086 |
292 | 1087 <section id="variables" name="Встроенные переменные"> |
76
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
1088 |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
1089 <para> |
292 | 1090 Модуль <literal>ngx_http_upstream_module</literal> |
1091 поддерживает следующие встроенные переменные: | |
1092 <list type="tag"> | |
76
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
1093 |
1155
07402a11fd8d
Assigned IDs to tags describing variables.
Vladimir Homutov <vl@nginx.com>
parents:
1128
diff
changeset
|
1094 <tag-name id="var_upstream_addr"><var>$upstream_addr</var></tag-name> |
292 | 1095 <tag-desc> |
1391
0702cc081c63
Revised descriptions of upstream module variables.
Ruslan Ermilov <ru@nginx.com>
parents:
1386
diff
changeset
|
1096 хранит IP-адрес и порт или путь к UNIX-сокету сервера группы. |
76
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
1097 Если при обработке запроса были сделаны обращения к нескольким серверам, |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
1098 то их адреса разделяются запятой, например, |
292 | 1099 “<literal>192.168.1.1:80, 192.168.1.2:80, unix:/tmp/sock</literal>”. |
256
c78b2d6fe261
Use another term for "redirect".
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parents:
222
diff
changeset
|
1100 Если произошло внутреннее перенаправление от одной группы серверов на другую |
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Use another term for "redirect".
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diff
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|
1101 с помощью |
292 | 1102 <header>X-Accel-Redirect</header> или |
1103 <link doc="ngx_http_core_module.xml" id="error_page"/>, | |
966 | 1104 то адреса, соответствующие разным группам серверов, разделяются двоеточием, |
1105 например, | |
292 | 1106 “<literal>192.168.1.1:80, 192.168.1.2:80, unix:/tmp/sock : 192.168.10.1:80, 192.168.10.2:80</literal>”. |
1107 </tag-desc> | |
76
4a4caa566120
Russian documentation import.
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diff
changeset
|
1108 |
1155
07402a11fd8d
Assigned IDs to tags describing variables.
Vladimir Homutov <vl@nginx.com>
parents:
1128
diff
changeset
|
1109 <tag-name id="var_upstream_cache_status"><var>$upstream_cache_status</var> |
07402a11fd8d
Assigned IDs to tags describing variables.
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parents:
1128
diff
changeset
|
1110 </tag-name> |
731
f62328124e5b
Documented $upstream_cache_status and $upstream_response_length variables.
Vladimir Homutov <vl@nginx.com>
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654
diff
changeset
|
1111 <tag-desc> |
f62328124e5b
Documented $upstream_cache_status and $upstream_response_length variables.
Vladimir Homutov <vl@nginx.com>
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diff
changeset
|
1112 хранит статус доступа к кэшу ответов (0.8.3). |
1075
6c021feec587
Removed unjustified non-breakable spaces.
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parents:
1016
diff
changeset
|
1113 Статус может быть одним из “<literal>MISS</literal>”, |
731
f62328124e5b
Documented $upstream_cache_status and $upstream_response_length variables.
Vladimir Homutov <vl@nginx.com>
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diff
changeset
|
1114 “<literal>BYPASS</literal>”, “<literal>EXPIRED</literal>”, |
1016
2d8269d8fea8
Translated documentation on cache revalidation into russian.
Vladimir Homutov <vl@nginx.com>
parents:
966
diff
changeset
|
1115 “<literal>STALE</literal>”, “<literal>UPDATING</literal>”, |
2d8269d8fea8
Translated documentation on cache revalidation into russian.
Vladimir Homutov <vl@nginx.com>
parents:
966
diff
changeset
|
1116 “<literal>REVALIDATED</literal>” или “<literal>HIT</literal>”. |
731
f62328124e5b
Documented $upstream_cache_status and $upstream_response_length variables.
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parents:
654
diff
changeset
|
1117 </tag-desc> |
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parents:
654
diff
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|
1118 |
1481
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Documented the upstream_connect_time variable.
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|
1119 <tag-name id="var_upstream_connect_time"><var>$upstream_connect_time</var> |
f29398a167d0
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1461
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changeset
|
1120 </tag-name> |
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diff
changeset
|
1121 <tag-desc> |
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parents:
1461
diff
changeset
|
1122 хранит время, затраченное на установление соединения с сервером группы (1.9.1); |
f29398a167d0
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diff
changeset
|
1123 время хранится в секундах с точностью до миллисекунд. |
f29398a167d0
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|
1124 В случае SSL, включает в себя время, потраченное на handshake. |
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1461
diff
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|
1125 Времена нескольких соединений |
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diff
changeset
|
1126 разделяются запятыми и двоеточиями подобно адресам в переменной |
f29398a167d0
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diff
changeset
|
1127 <link id="var_upstream_addr">$upstream_addr</link>. |
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parents:
1461
diff
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|
1128 </tag-desc> |
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Yaroslav Zhuravlev <yar@nginx.com>
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diff
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|
1129 |
1391
0702cc081c63
Revised descriptions of upstream module variables.
Ruslan Ermilov <ru@nginx.com>
parents:
1386
diff
changeset
|
1130 <tag-name id="var_upstream_cookie_"><var>$upstream_cookie_</var><value>имя</value> |
0702cc081c63
Revised descriptions of upstream module variables.
Ruslan Ermilov <ru@nginx.com>
parents:
1386
diff
changeset
|
1131 </tag-name> |
1186
8125bec5c7a1
Upstream: documented the $upstream_cookie_* variables.
Ruslan Ermilov <ru@nginx.com>
parents:
1181
diff
changeset
|
1132 <tag-desc> |
8125bec5c7a1
Upstream: documented the $upstream_cookie_* variables.
Ruslan Ermilov <ru@nginx.com>
parents:
1181
diff
changeset
|
1133 кука с указанным <value>именем</value>, переданная сервером группы |
8125bec5c7a1
Upstream: documented the $upstream_cookie_* variables.
Ruslan Ermilov <ru@nginx.com>
parents:
1181
diff
changeset
|
1134 в поле <header>Set-Cookie</header> заголовка ответа (1.7.1). |
1391
0702cc081c63
Revised descriptions of upstream module variables.
Ruslan Ermilov <ru@nginx.com>
parents:
1386
diff
changeset
|
1135 Необходимо иметь в виду, что куки запоминаются только из ответа |
1186
8125bec5c7a1
Upstream: documented the $upstream_cookie_* variables.
Ruslan Ermilov <ru@nginx.com>
parents:
1181
diff
changeset
|
1136 последнего сервера. |
8125bec5c7a1
Upstream: documented the $upstream_cookie_* variables.
Ruslan Ermilov <ru@nginx.com>
parents:
1181
diff
changeset
|
1137 </tag-desc> |
8125bec5c7a1
Upstream: documented the $upstream_cookie_* variables.
Ruslan Ermilov <ru@nginx.com>
parents:
1181
diff
changeset
|
1138 |
1393
15e8779f0ceb
Documented the $upstream_header_time variable.
Ruslan Ermilov <ru@nginx.com>
parents:
1392
diff
changeset
|
1139 <tag-name id="var_upstream_header_time"><var>$upstream_header_time</var> |
15e8779f0ceb
Documented the $upstream_header_time variable.
Ruslan Ermilov <ru@nginx.com>
parents:
1392
diff
changeset
|
1140 </tag-name> |
15e8779f0ceb
Documented the $upstream_header_time variable.
Ruslan Ermilov <ru@nginx.com>
parents:
1392
diff
changeset
|
1141 <tag-desc> |
15e8779f0ceb
Documented the $upstream_header_time variable.
Ruslan Ermilov <ru@nginx.com>
parents:
1392
diff
changeset
|
1142 хранит время, |
15e8779f0ceb
Documented the $upstream_header_time variable.
Ruslan Ermilov <ru@nginx.com>
parents:
1392
diff
changeset
|
1143 затраченное на получение заголовка ответа от сервера группы (1.7.10); |
15e8779f0ceb
Documented the $upstream_header_time variable.
Ruslan Ermilov <ru@nginx.com>
parents:
1392
diff
changeset
|
1144 время хранится в секундах с точностью до миллисекунд. |
15e8779f0ceb
Documented the $upstream_header_time variable.
Ruslan Ermilov <ru@nginx.com>
parents:
1392
diff
changeset
|
1145 Времена нескольких ответов |
15e8779f0ceb
Documented the $upstream_header_time variable.
Ruslan Ermilov <ru@nginx.com>
parents:
1392
diff
changeset
|
1146 разделяются запятыми и двоеточиями подобно адресам в переменной |
15e8779f0ceb
Documented the $upstream_header_time variable.
Ruslan Ermilov <ru@nginx.com>
parents:
1392
diff
changeset
|
1147 <link id="var_upstream_addr">$upstream_addr</link>. |
15e8779f0ceb
Documented the $upstream_header_time variable.
Ruslan Ermilov <ru@nginx.com>
parents:
1392
diff
changeset
|
1148 </tag-desc> |
15e8779f0ceb
Documented the $upstream_header_time variable.
Ruslan Ermilov <ru@nginx.com>
parents:
1392
diff
changeset
|
1149 |
1392
82e62822abe8
Sorted upstream module variables.
Ruslan Ermilov <ru@nginx.com>
parents:
1391
diff
changeset
|
1150 <tag-name id="var_upstream_http_"><var>$upstream_http_</var><value>имя</value></tag-name> |
82e62822abe8
Sorted upstream module variables.
Ruslan Ermilov <ru@nginx.com>
parents:
1391
diff
changeset
|
1151 <tag-desc> |
82e62822abe8
Sorted upstream module variables.
Ruslan Ermilov <ru@nginx.com>
parents:
1391
diff
changeset
|
1152 хранят поля заголовка ответа сервера. |
82e62822abe8
Sorted upstream module variables.
Ruslan Ermilov <ru@nginx.com>
parents:
1391
diff
changeset
|
1153 Например, поле заголовка ответа <header>Server</header> |
82e62822abe8
Sorted upstream module variables.
Ruslan Ermilov <ru@nginx.com>
parents:
1391
diff
changeset
|
1154 доступно в переменной <var>$upstream_http_server</var>. |
82e62822abe8
Sorted upstream module variables.
Ruslan Ermilov <ru@nginx.com>
parents:
1391
diff
changeset
|
1155 Правила преобразования имён полей заголовка ответа в имена переменных |
82e62822abe8
Sorted upstream module variables.
Ruslan Ermilov <ru@nginx.com>
parents:
1391
diff
changeset
|
1156 такие же, как для переменных с префиксом |
82e62822abe8
Sorted upstream module variables.
Ruslan Ermilov <ru@nginx.com>
parents:
1391
diff
changeset
|
1157 “<link doc="ngx_http_core_module.xml" id="var_http_">$http_</link>”. |
82e62822abe8
Sorted upstream module variables.
Ruslan Ermilov <ru@nginx.com>
parents:
1391
diff
changeset
|
1158 Необходимо иметь в виду, что поля заголовка запоминаются только из ответа |
82e62822abe8
Sorted upstream module variables.
Ruslan Ermilov <ru@nginx.com>
parents:
1391
diff
changeset
|
1159 последнего сервера. |
82e62822abe8
Sorted upstream module variables.
Ruslan Ermilov <ru@nginx.com>
parents:
1391
diff
changeset
|
1160 </tag-desc> |
82e62822abe8
Sorted upstream module variables.
Ruslan Ermilov <ru@nginx.com>
parents:
1391
diff
changeset
|
1161 |
1155
07402a11fd8d
Assigned IDs to tags describing variables.
Vladimir Homutov <vl@nginx.com>
parents:
1128
diff
changeset
|
1162 <tag-name id="var_upstream_response_length"><var>$upstream_response_length</var> |
07402a11fd8d
Assigned IDs to tags describing variables.
Vladimir Homutov <vl@nginx.com>
parents:
1128
diff
changeset
|
1163 </tag-name> |
731
f62328124e5b
Documented $upstream_cache_status and $upstream_response_length variables.
Vladimir Homutov <vl@nginx.com>
parents:
654
diff
changeset
|
1164 <tag-desc> |
1391
0702cc081c63
Revised descriptions of upstream module variables.
Ruslan Ermilov <ru@nginx.com>
parents:
1386
diff
changeset
|
1165 хранит длину ответа, полученного от сервера группы (0.7.27); |
0702cc081c63
Revised descriptions of upstream module variables.
Ruslan Ermilov <ru@nginx.com>
parents:
1386
diff
changeset
|
1166 длина хранится в байтах. |
0702cc081c63
Revised descriptions of upstream module variables.
Ruslan Ermilov <ru@nginx.com>
parents:
1386
diff
changeset
|
1167 Длины нескольких ответов |
0702cc081c63
Revised descriptions of upstream module variables.
Ruslan Ermilov <ru@nginx.com>
parents:
1386
diff
changeset
|
1168 разделяются запятыми и двоеточиями подобно адресам в переменной |
0702cc081c63
Revised descriptions of upstream module variables.
Ruslan Ermilov <ru@nginx.com>
parents:
1386
diff
changeset
|
1169 <link id="var_upstream_addr">$upstream_addr</link>. |
731
f62328124e5b
Documented $upstream_cache_status and $upstream_response_length variables.
Vladimir Homutov <vl@nginx.com>
parents:
654
diff
changeset
|
1170 </tag-desc> |
f62328124e5b
Documented $upstream_cache_status and $upstream_response_length variables.
Vladimir Homutov <vl@nginx.com>
parents:
654
diff
changeset
|
1171 |
1155
07402a11fd8d
Assigned IDs to tags describing variables.
Vladimir Homutov <vl@nginx.com>
parents:
1128
diff
changeset
|
1172 <tag-name id="var_upstream_response_time"><var>$upstream_response_time</var> |
07402a11fd8d
Assigned IDs to tags describing variables.
Vladimir Homutov <vl@nginx.com>
parents:
1128
diff
changeset
|
1173 </tag-name> |
292 | 1174 <tag-desc> |
1391
0702cc081c63
Revised descriptions of upstream module variables.
Ruslan Ermilov <ru@nginx.com>
parents:
1386
diff
changeset
|
1175 хранит время, затраченное на получение ответа от сервера группы; |
0702cc081c63
Revised descriptions of upstream module variables.
Ruslan Ermilov <ru@nginx.com>
parents:
1386
diff
changeset
|
1176 время хранится в секундах с точностью до миллисекунд. |
0702cc081c63
Revised descriptions of upstream module variables.
Ruslan Ermilov <ru@nginx.com>
parents:
1386
diff
changeset
|
1177 Времена нескольких ответов |
0702cc081c63
Revised descriptions of upstream module variables.
Ruslan Ermilov <ru@nginx.com>
parents:
1386
diff
changeset
|
1178 разделяются запятыми и двоеточиями подобно адресам в переменной |
0702cc081c63
Revised descriptions of upstream module variables.
Ruslan Ermilov <ru@nginx.com>
parents:
1386
diff
changeset
|
1179 <link id="var_upstream_addr">$upstream_addr</link>. |
292 | 1180 </tag-desc> |
76
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
1181 |
1155
07402a11fd8d
Assigned IDs to tags describing variables.
Vladimir Homutov <vl@nginx.com>
parents:
1128
diff
changeset
|
1182 <tag-name id="var_upstream_status"><var>$upstream_status</var></tag-name> |
292 | 1183 <tag-desc> |
1391
0702cc081c63
Revised descriptions of upstream module variables.
Ruslan Ermilov <ru@nginx.com>
parents:
1386
diff
changeset
|
1184 хранит статус ответа, полученного от сервера группы. |
0702cc081c63
Revised descriptions of upstream module variables.
Ruslan Ermilov <ru@nginx.com>
parents:
1386
diff
changeset
|
1185 Статусы нескольких ответов |
0702cc081c63
Revised descriptions of upstream module variables.
Ruslan Ermilov <ru@nginx.com>
parents:
1386
diff
changeset
|
1186 разделяются запятыми и двоеточиями подобно адресам в переменной |
0702cc081c63
Revised descriptions of upstream module variables.
Ruslan Ermilov <ru@nginx.com>
parents:
1386
diff
changeset
|
1187 <link id="var_upstream_addr">$upstream_addr</link>. |
292 | 1188 </tag-desc> |
76
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
1189 |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
1190 </list> |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
1191 </para> |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
1192 |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
1193 </section> |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
1194 |
4a4caa566120
Russian documentation import.
Maxim Dounin <mdounin@mdounin.ru>
parents:
diff
changeset
|
1195 </module> |