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comparison xml/en/docs/http/ngx_http_upstream_module.xml @ 942:ba3d6ade3513

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Elaborate on upstream server failures. Documented that {proxy,fastcgi,memcached}_next_upstream directives define what is considered an unsuccessful attempt of communication with a server.
author Ruslan Ermilov <ru@nginx.com>
date Fri, 05 Jul 2013 10:40:38 +0400
parents e26a18eb5ccd
children aded7086e84f
comparison
equal deleted inserted replaced
941:7d1d53d4d293 942:ba3d6ade3513
8 <!DOCTYPE module SYSTEM "../../../../dtd/module.dtd"> 8 <!DOCTYPE module SYSTEM "../../../../dtd/module.dtd">
9 9
10 <module name="Module ngx_http_upstream_module" 10 <module name="Module ngx_http_upstream_module"
11 link="/en/docs/http/ngx_http_upstream_module.html" 11 link="/en/docs/http/ngx_http_upstream_module.html"
12 lang="en" 12 lang="en"
13 rev="3"> 13 rev="4">
14 14
15 <section id="summary"> 15 <section id="summary">
16 16
17 <para> 17 <para>
18 The <literal>ngx_http_upstream_module</literal> module 18 The <literal>ngx_http_upstream_module</literal> module
121 during a time set by the <literal>fail_timeout</literal> parameter 121 during a time set by the <literal>fail_timeout</literal> parameter
122 after which it will be considered down for a period of time also set 122 after which it will be considered down for a period of time also set
123 by the <literal>fail_timeout</literal> parameter. 123 by the <literal>fail_timeout</literal> parameter.
124 By default, the number of unsuccessful attempts is set to 1. 124 By default, the number of unsuccessful attempts is set to 1.
125 A value of zero disables accounting of attempts. 125 A value of zero disables accounting of attempts.
126 What is considered to be an unsuccessful attempt is configured by the 126 What is considered an unsuccessful attempt is defined by the
127 <link doc="ngx_http_proxy_module.xml" id="proxy_next_upstream"/>, 127 <link doc="ngx_http_proxy_module.xml" id="proxy_next_upstream"/>,
128 <link doc="ngx_http_fastcgi_module.xml" id="fastcgi_next_upstream"/>, and 128 <link doc="ngx_http_fastcgi_module.xml" id="fastcgi_next_upstream"/>, and
129 <link doc="ngx_http_memcached_module.xml" id="memcached_next_upstream"/> 129 <link doc="ngx_http_memcached_module.xml" id="memcached_next_upstream"/>
130 directives. 130 directives.
131 The <literal>http_403</literal>, <literal>http_404</literal>,
132 and <literal>not_found</literal> states are not considered as
133 unsuccessful attempts.
134 </tag-desc> 131 </tag-desc>
135 132
136 <tag-name><literal>fail_timeout</literal>=<value>time</value></tag-name> 133 <tag-name><literal>fail_timeout</literal>=<value>time</value></tag-name>
137 <tag-desc> 134 <tag-desc>
138 sets 135 sets