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authorJeff Trawick <trawick@apache.org>2010-09-23 14:01:50 +0000
committerJeff Trawick <trawick@apache.org>2010-09-23 14:01:50 +0000
commit279fb735bf8593a015f811e57d7b02396c0454db (patch)
tree80f2d74b5d3d037cec06d0ad435419c05769e35a
parent816c1eaf9ad7a52357eb04d007a5dbd1a9c7fba8 (diff)
downloadhttpd-279fb735bf8593a015f811e57d7b02396c0454db.tar.gz
generated files only
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1000475 13f79535-47bb-0310-9956-ffa450edef68
-rw-r--r--docs/manual/mod/mod_proxy.html.en58
-rw-r--r--docs/manual/mod/mod_proxy.xml.ja2
2 files changed, 33 insertions, 27 deletions
diff --git a/docs/manual/mod/mod_proxy.html.en b/docs/manual/mod/mod_proxy.html.en
index 400240f135..4ea568d945 100644
--- a/docs/manual/mod/mod_proxy.html.en
+++ b/docs/manual/mod/mod_proxy.html.en
@@ -893,21 +893,22 @@ through</td></tr>
using <code>key=value</code> parameters, described in the table
below.</p>
- <p>Setting <code>min</code> to non-zero allows connections to the
- backend server to be retained after use; at least <code>min</code>
- connections will be retained. Any idle connections above
- <code>smax</code> are subject to a time to live, or <code>ttl</code>.
- Up to the hard maximum, or <code>max</code>, number of connections
- may be created.</p>
+ <p>By default, mod_proxy will allow and retain the maximum number of
+ connections that could be used simultaneously by that web server child
+ process. Use the <code>max</code> parameter to reduce the number from
+ the default. Use the <code>ttl</code> parameter to set an optional
+ time to live; connections which have been unused for at least
+ <code>ttl</code> seconds will be closed. <code>ttl</code> can be used
+ to avoid using a connection which is subject to closing because of the
+ backend server's keep-alive timeout.</p>
<p>The pool of connections is maintained per web server child
- process, and the <code>min</code>, <code>max</code>, and
- and <code>smax</code> settings are not coordinated among all child
- processes, except when only one child process is allowed by
- configuration or MPM design.</p>
+ process, and <code>max</code> and other settings are not coordinated
+ among all child processes, except when only one child process is allowed
+ by configuration or MPM design.</p>
<div class="example"><h3>Example</h3><p><code>
- ProxyPass /example http://backend.example.com smax=5 max=20 ttl=120 retry=300
+ ProxyPass /example http://backend.example.com max=20 ttl=120 retry=300
</code></p></div>
<table>
@@ -916,22 +917,27 @@ through</td></tr>
<th>Description</th></tr>
<tr><td>min</td>
<td>0</td>
- <td>Minimum number of connections to the backend server that
- will be retained after use.</td></tr>
+ <td>Minimum number of connection pool entries, unrelated to the
+ actual number of connections. This only needs to be modified from the
+ default for special circumstances where heap memory associated with the
+ backend connections should be preallocated or retained.</td></tr>
<tr><td>max</td>
<td>1...n</td>
- <td>Hard Maximum number of connections that will be
- allowed to the backend server. The default for a Hard Maximum
- for the number of connections is the number of threads per process in the
- active MPM. In the Prefork MPM, this is always 1, while with the Worker MPM
- it is controlled by the <code class="directive">ThreadsPerChild</code>.
- Apache httpd will never create more than the Hard Maximum connections
- to the backend server.</td></tr>
+ <td>Maximum number of connections that will be allowed to the
+ backend server. The default for this limit is the number of threads
+ per process in the active MPM. In the Prefork MPM, this is always 1,
+ while with other MPMs it is controlled by the
+ <code class="directive">ThreadsPerChild</code> directive.</td></tr>
<tr><td>smax</td>
<td>max</td>
- <td>Retained connections above the soft maximum, or <code>smax</code>,
- are subject to a time to live, controlled by the <code>ttl</code> parameter.
- </td></tr>
+ <td>Retained connection pool entries above this limit are freed
+ during certain operations if they have been unused for longer than
+ the time to live, controlled by the <code>ttl</code> parameter. If
+ the connection pool entry has an associated connection, it will be
+ closed. This only needs to be modified from the default for special
+ circumstances where connection pool entries and any associated
+ connections which have exceeded the time to live need to be freed or
+ closed more aggressively.</td></tr>
<tr><td>acquire</td>
<td>-</td>
<td>If set this will be the maximum time to wait for a free
@@ -1058,9 +1064,9 @@ through</td></tr>
</td></tr>
<tr><td>ttl</td>
<td>-</td>
- <td>Time to live for the inactive connections above <code>smax</code>,
- in seconds. Connections above <code>smax</code> will be closed
- if they have not been used inside that time period.
+ <td>Time to live for inactive connections and associated connection
+ pool entries, in seconds. Those which are unused for at least
+ <code>ttl</code> seconds will be destroyed.
</td></tr>
</table>
diff --git a/docs/manual/mod/mod_proxy.xml.ja b/docs/manual/mod/mod_proxy.xml.ja
index ec8dab0c20..3f63098049 100644
--- a/docs/manual/mod/mod_proxy.xml.ja
+++ b/docs/manual/mod/mod_proxy.xml.ja
@@ -1,7 +1,7 @@
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE modulesynopsis SYSTEM "../style/modulesynopsis.dtd">
<?xml-stylesheet type="text/xsl" href="../style/manual.ja.xsl"?>
-<!-- English Revision: 344971:1000130 (outdated) -->
+<!-- English Revision: 344971:1000474 (outdated) -->
<!--
Licensed to the Apache Software Foundation (ASF) under one or more