Mercurial > hg > nginx-site
comparison xml/en/docs/http/ngx_http_memcached_module.xml @ 942:ba3d6ade3513
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 | 3a374868c798 |
children | 95c3c3bbf1ce |
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_memcached_module" | 10 <module name="Module ngx_http_memcached_module" |
11 link="/en/docs/http/ngx_http_memcached_module.html" | 11 link="/en/docs/http/ngx_http_memcached_module.html" |
12 lang="en" | 12 lang="en" |
13 rev="5"> | 13 rev="6"> |
14 | 14 |
15 <section id="summary"> | 15 <section id="summary"> |
16 | 16 |
17 <para> | 17 <para> |
18 The <literal>ngx_http_memcached_module</literal> module allows to obtain | 18 The <literal>ngx_http_memcached_module</literal> module allows to obtain |
158 <para> | 158 <para> |
159 It should be understood that passing a request to the next server is | 159 It should be understood that passing a request to the next server is |
160 only possible if a client was not sent anything yet. | 160 only possible if a client was not sent anything yet. |
161 That is, if an error or a timeout occurs in the middle of | 161 That is, if an error or a timeout occurs in the middle of |
162 transferring a response, fixing this is impossible. | 162 transferring a response, fixing this is impossible. |
163 </para> | |
164 | |
165 <para> | |
166 The directive also defines what is considered an unsuccessful attempt | |
167 of communication with a | |
168 <link doc="ngx_http_upstream_module.xml" id="server"/>. | |
169 The cases of <literal>error</literal>, <literal>timeout</literal> and | |
170 <literal>invalid_header</literal> are always considered unsuccessful attempts, | |
171 even if they are not specified in the directive. | |
172 The case of <literal>not_found</literal> | |
173 is never considered an unsuccessful attempt. | |
163 </para> | 174 </para> |
164 | 175 |
165 </directive> | 176 </directive> |
166 | 177 |
167 | 178 |