Mercurial > hg > nginx-site
diff xml/en/docs/http/ngx_http_core_module.xml @ 767:1bb8b733416a
Clarified the description of the limit_rate directive
and fixed the description of the $limit_rate variable.
author | Ruslan Ermilov <ru@nginx.com> |
---|---|
date | Fri, 16 Nov 2012 18:53:36 +0000 |
parents | ddec437b692b |
children | f63b7fa3bf17 |
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--- a/xml/en/docs/http/ngx_http_core_module.xml +++ b/xml/en/docs/http/ngx_http_core_module.xml @@ -10,7 +10,7 @@ <module name="Module ngx_http_core_module" link="/en/docs/http/ngx_http_core_module.html" lang="en" - rev="9"> + rev="10"> <section id="directives" name="Directives"> @@ -957,22 +957,19 @@ Please note that this will limit access <para> Rate limits the transmission of a response to a client. The <value>rate</value> is specified in bytes per second. -Value 0 (the default) disables rate limiting. +The value 0 disables rate limiting. <!-- The smaller the rate, the more accurate will be the limitation. --> -The limit is per connection, so if a single client opens 2 connections, -an overall rate will be 2x more than specified by this directive. +The limit is set per request, so if a client simultaneously opens +two connections, an overall rate will be twice as much +as the specified limit. </para> <para> -This directive is not applicable if one wants to rate limit -a group of clients on the -<link id="server"/> -level. -If that is the case, the desired limit can be specified in the -<var>$limit_rate</var> -variable: +Rate limit can also be set in the <var>$limit_rate</var> variable. +It may be useful in cases where rate should be limited +depending on a certain condition: <example> server { @@ -987,7 +984,7 @@ server { <para> In addition, rate limit can also be set in the -<header>X-Accel-Limit-Rate</header> response header field. +<header>X-Accel-Limit-Rate</header> header field of a proxied server response. This ability can be disabled using the <link doc="ngx_http_proxy_module.xml" id="proxy_ignore_headers"/> and @@ -2770,7 +2767,8 @@ or an empty string otherwise <tag-name><var>$limit_rate</var></tag-name> <tag-desc> -allows for connection rate limiting +setting this variable allows for response rate limiting; +see <link id="limit_rate"/> </tag-desc> <tag-name><var>$nginx_version</var></tag-name>