Mercurial > hg > nginx-site
diff xml/en/docs/http/ngx_http_scgi_module.xml @ 1909:399d0e188195
Documented proxy_cache_background_update and friends.
author | Yaroslav Zhuravlev <yar@nginx.com> |
---|---|
date | Wed, 15 Feb 2017 23:16:54 +0300 |
parents | 6839c258c473 |
children | 41cf2c2d8c5c |
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--- a/xml/en/docs/http/ngx_http_scgi_module.xml +++ b/xml/en/docs/http/ngx_http_scgi_module.xml @@ -10,7 +10,7 @@ <module name="Module ngx_http_scgi_module" link="/en/docs/http/ngx_http_scgi_module.html" lang="en" - rev="29"> + rev="30"> <section id="summary"> @@ -193,6 +193,26 @@ from the previous configuration level. </directive> +<directive name="scgi_cache_background_update"> +<syntax><literal>on</literal> | <literal>off</literal></syntax> +<default>off</default> +<context>http</context> +<context>server</context> +<context>location</context> +<appeared-in>1.11.10</appeared-in> + +<para> +Allows starting a background subrequest +to update an expired cache item, +while a stale cached response is returned to the client. +Note that it is necessary to +<link id="scgi_cache_use_stale_updating">allow</link> +the usage of a stale cached response when it is being updated. +</para> + +</directive> + + <directive name="scgi_cache_bypass"> <syntax><value>string</value> ...</syntax> <default/> @@ -604,7 +624,7 @@ using a stale cached response if an SCGI cannot be selected. </para> -<para> +<para id="scgi_cache_use_stale_updating"> Additionally, the <literal>updating</literal> parameter permits using a stale cached response if it is currently being updated. This allows minimizing the number of accesses to SCGI servers