Mercurial > hg > nginx-site

comparison xml/en/docs/http/ngx_http_upstream_module.xml @ 654:841118e33f41

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Refined the text about cache of connections to upstream servers.
author Ruslan Ermilov <ru@nginx.com>
date Sat, 25 Aug 2012 07:24:53 +0000
parents 764fbac1b8b4
children f62328124e5b
comparison
equal deleted inserted replaced
653:703d981c8e12 654:841118e33f41
241 Activates cache of connections to upstream servers. 241 Activates cache of connections to upstream servers.
242 </para> 242 </para>
243 243
244 <para> 244 <para>
245 The <value>connections</value> parameter sets the maximum number of 245 The <value>connections</value> parameter sets the maximum number of
246 keepalive connections to upstream servers that are retained in 246 idle keepalive connections to upstream servers that are retained in
247 the cache per one worker process. 247 the cache per one worker process.
248 If there are more idle connections to retain to an upstream than 248 When this number is exceeded, the least recently used connections
249 are specified by this number, the least recently used ones will 249 are closed.
250 be closed. 250 <note>
251 <note> 251 It should be particularly noted that <literal>keepalive</literal> directive
252 It should be noted that <literal>keepalive</literal> directive 252 does not limit the total number of connections that nginx worker process
253 does not limit the total number of connections that nginx worker 253 can open to upstream servers.
254 process can open to upstream servers.
255 The new connections are always created on demand.
256 The <value>connections</value> parameter should be set low enough 254 The <value>connections</value> parameter should be set low enough
257 to allow upstream servers to process additional new incoming 255 to allow upstream servers to process additional new incoming
258 connections as well. 256 connections as well.
259 </note> 257 </note>
260 </para> 258 </para>