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diff --git a/docs/manual/mod/prefork.html b/docs/manual/mod/prefork.html index d228aef8d2..19605b5144 100644 --- a/docs/manual/mod/prefork.html +++ b/docs/manual/mod/prefork.html @@ -2,7 +2,7 @@ XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX This file is generated from xml source: DO NOT EDIT XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX - --><title>prefork- Apache HTTP Server</title><link rel="stylesheet" type="text/css" href="../style/manual.css"/></head><body><blockquote><div align="center"><img src="../images/sub.gif" alt="[APACHE DOCUMENTATION]"/><h3>Apache HTTP Server Version 2.0</h3></div><h1 align="center">Apache Module prefork</h1><table bgcolor="#cccccc" cellpadding="0" cellspacing="1"><tr><td><table bgcolor="#ffffff"><tr><td valign="top"><span class="help">Description:</span></td><td>Implements a non-threaded, pre-forking web server</td></tr><tr><td><a class="help" href="module-dict.html#Status">Status:</a></td><td>MPM</td></tr><tr><td><a class="help" href="module-dict.html#ModuleIdentifier">Module Identifier:</a></td><td>mpm_prefork_module</td></tr></table></td></tr></table><h2>Summary</h2> + --><title>prefork- Apache HTTP Server</title><link href="../style/manual.css" type="text/css" rel="stylesheet"/></head><body><blockquote><div align="center"><img src="../images/sub.gif" alt="[APACHE DOCUMENTATION]"/><h3>Apache HTTP Server Version 2.0</h3></div><h1 align="center">Apache Module prefork</h1><table cellspacing="1" cellpadding="0" bgcolor="#cccccc"><tr><td><table bgcolor="#ffffff"><tr><td valign="top"><span class="help">Description:</span></td><td>Implements a non-threaded, pre-forking web server</td></tr><tr><td><a href="module-dict.html#Status" class="help">Status:</a></td><td>MPM</td></tr><tr><td><a href="module-dict.html#ModuleIdentifier" class="help">Module Identifier:</a></td><td>mpm_prefork_module</td></tr></table></td></tr></table><h2>Summary</h2> <p>This Multi-Processing Module (MPM) implements a non-threaded, pre-forking web server which handles request in a manner very similar to the default behavior of Apache 1.3 on @@ -16,23 +16,23 @@ child processes to be forked before their requests can be served.</p> - <p>The <a class="directive" href="mpm_common.html#startservers"><code class="directive">StartServers</code></a>, - <a class="directive" href="#minspareservers"><code class="directive">MinSpareServers</code></a>, - <a class="directive" href="#maxspareservers"><code class="directive">MaxSpareServers</code></a>, and - <a class="directive" href="mpm_common.html#maxclients"><code class="directive">MaxClients</code></a> regulate how + <p>The <a href="mpm_common.html#startservers" class="directive"><code class="directive">StartServers</code></a>, + <a href="#minspareservers" class="directive"><code class="directive">MinSpareServers</code></a>, + <a href="#maxspareservers" class="directive"><code class="directive">MaxSpareServers</code></a>, and + <a href="mpm_common.html#maxclients" class="directive"><code class="directive">MaxClients</code></a> regulate how the parent process creates children to serve requests. In general, Apache is very self-regulating, so most sites do not need to adjust these directives from their default values. Sites which need to serve more than 256 simultaneous requests may need to - increase <a class="directive" href="mpm_common.html#maxclients"><code class="directive">MaxClients</code></a>, - while sites with limited memory may need to decrease <a class="directive" href="mpm_common.html#maxclients"><code class="directive">MaxClients</code></a> to keep the server from + increase <a href="mpm_common.html#maxclients" class="directive"><code class="directive">MaxClients</code></a>, + while sites with limited memory may need to decrease <a href="mpm_common.html#maxclients" class="directive"><code class="directive">MaxClients</code></a> to keep the server from thrashing (swapping memory to disk and back). More information about tuning process creation is provided in the <a href="../misc/perf-tuning.html">performance hints</a> documentation.</p> <p>While the parent process is usually started as root under Unix in order to bind to port 80, the child processes are launched by - Apache as a less-privileged user. The <a class="directive" href="mpm_common.html#user"><code class="directive">User</code></a> and <a class="directive" href="mpm_common.html#group"><code class="directive">Group</code></a> directives are used to set + Apache as a less-privileged user. The <a href="mpm_common.html#user" class="directive"><code class="directive">User</code></a> and <a href="mpm_common.html#group" class="directive"><code class="directive">Group</code></a> directives are used to set the privileges of the Apache child processes. The child processes must be able to read all the content that will be served, but should have as few privileges beyond that as possible. In @@ -40,12 +40,12 @@ these directives also set the privileges which will be inherited by CGI scripts.</p> - <p><a class="directive" href="mpm_common.html#maxrequestsperchild"><code class="directive">MaxRequestsPerChild</code></a> + <p><a href="mpm_common.html#maxrequestsperchild" class="directive"><code class="directive">MaxRequestsPerChild</code></a> controls how frequently the server recycles processes by killing old ones and launching new ones.</p> <h2>Directives</h2><ul><li><a href="#acceptmutex">AcceptMutex</a></li><li><a href="mpm_common.html#coredumpdirectory">CoreDumpDirectory</a></li><li><a href="mpm_common.html#listen">Listen</a></li><li><a href="mpm_common.html#listenbacklog">ListenBacklog</a></li><li><a href="mpm_common.html#lockfile">LockFile</a></li><li><a href="mpm_common.html#maxrequestsperchild">MaxRequestsPerChild</a></li><li><a href="mpm_common.html#maxspareservers">MaxSpareServers</a></li><li><a href="#maxspareservers">MaxSpareServers</a></li><li><a href="mpm_common.html#minspareservers">MinSpareServers</a></li><li><a href="#minspareservers">MinSpareServers</a></li><li><a href="mpm_common.html#pidfile">PidFile</a></li><li><a href="mpm_common.html#scoreboardfile">ScoreBoardFile</a></li><li><a href="mpm_common.html#sendbuffersize">SendBufferSize</a></li><li><a href="mpm_common.html#serverlimit">ServerLimit</a></li><li><a href="mpm_common.html#startservers">StartServers</a></li><li><a href="mpm_common.html#user">User</a></li></ul><p><strong>See also </strong></p><ul><li><a href="../bind.html">Setting which addresses and - ports Apache uses</a></li></ul><hr/><h2><a name="AcceptMutex">AcceptMutex</a> <a name="acceptmutex">Directive</a></h2><table bgcolor="#cccccc" border="0" cellspacing="0" cellpadding="1"><tr><td><table bgcolor="#ffffff"><tr><td><strong>Description: </strong></td><td>Method that Apache uses to serialize multiple children -accepting requests on network sockets</td></tr><tr><td><a class="help" href="directive-dict.html#Syntax">Syntax:</a></td><td>AcceptMutex default|<em>method</em></td></tr><tr><td><a class="help" href="directive-dict.html#Default">Default:</a></td><td><code>AcceptMutex default</code></td></tr><tr><td><a class="help" href="directive-dict.html#Context">Context:</a></td><td>server config</td></tr><tr><td><a class="help" href="directive-dict.html#Status">Status:</a></td><td>MPM</td></tr><tr><td><a class="help" href="directive-dict.html#Module">Module:</a></td><td>prefork</td></tr></table></td></tr></table> + ports Apache uses</a></li></ul><hr/><h2><a name="AcceptMutex">AcceptMutex</a> <a name="acceptmutex">Directive</a></h2><table cellpadding="1" cellspacing="0" border="0" bgcolor="#cccccc"><tr><td><table bgcolor="#ffffff"><tr><td><strong>Description: </strong></td><td>Method that Apache uses to serialize multiple children +accepting requests on network sockets</td></tr><tr><td><a href="directive-dict.html#Syntax" class="help">Syntax:</a></td><td>AcceptMutex default|<em>method</em></td></tr><tr><td><a href="directive-dict.html#Default" class="help">Default:</a></td><td><code>AcceptMutex default</code></td></tr><tr><td><a href="directive-dict.html#Context" class="help">Context:</a></td><td>server config</td></tr><tr><td><a href="directive-dict.html#Status" class="help">Status:</a></td><td>MPM</td></tr><tr><td><a href="directive-dict.html#Module" class="help">Module:</a></td><td>prefork</td></tr></table></td></tr></table> <p>The <code class="directive">AcceptMutex</code> directives sets the method that Apache uses to serialize multiple children accepting requests on network sockets. Prior to Apache 2.0, the method was @@ -65,12 +65,12 @@ accepting requests on network sockets</td></tr><tr><td><a class="help" href="dir <dt><code>flock</code></dt> <dd>uses the <code>flock(2)</code> system call to lock the - file defined by the <a class="directive" href="mpm_common.html#lockfile"><code class="directive">LockFile</code></a> directive.</dd> + file defined by the <a href="mpm_common.html#lockfile" class="directive"><code class="directive">LockFile</code></a> directive.</dd> <dt><code>fcntl</code></dt> <dd>uses the <code>fnctl(2)</code> system call to lock the - file defined by the <a class="directive" href="mpm_common.html#lockfile"><code class="directive">LockFile</code></a> directive.</dd> + file defined by the <a href="mpm_common.html#lockfile" class="directive"><code class="directive">LockFile</code></a> directive.</dd> <dt><code>sysvsem</code></dt> @@ -81,7 +81,7 @@ accepting requests on network sockets</td></tr><tr><td><a class="help" href="dir <dd>uses POSIX mutexes as implemented by the POSIX Threads (PThreads) specification.</dd> </dl> -<hr/><h2><a name="MaxSpareServers">MaxSpareServers</a> <a name="maxspareservers">Directive</a></h2><table bgcolor="#cccccc" border="0" cellspacing="0" cellpadding="1"><tr><td><table bgcolor="#ffffff"><tr><td><strong>Description: </strong></td><td>Maximum number of idle child server processes</td></tr><tr><td><a class="help" href="directive-dict.html#Syntax">Syntax:</a></td><td>MaxSpareServers <em>number</em><br/></td></tr><tr><td><a class="help" href="directive-dict.html#Default">Default:</a></td><td><code>MaxSpareServers 10</code></td></tr><tr><td><a class="help" href="directive-dict.html#Context">Context:</a></td><td>server config</td></tr><tr><td><a class="help" href="directive-dict.html#Status">Status:</a></td><td>MPM</td></tr><tr><td><a class="help" href="directive-dict.html#Module">Module:</a></td><td>prefork</td></tr></table></td></tr></table> +<hr/><h2><a name="MaxSpareServers">MaxSpareServers</a> <a name="maxspareservers">Directive</a></h2><table cellpadding="1" cellspacing="0" border="0" bgcolor="#cccccc"><tr><td><table bgcolor="#ffffff"><tr><td><strong>Description: </strong></td><td>Maximum number of idle child server processes</td></tr><tr><td><a href="directive-dict.html#Syntax" class="help">Syntax:</a></td><td>MaxSpareServers <em>number</em><br></td></tr><tr><td><a href="directive-dict.html#Default" class="help">Default:</a></td><td><code>MaxSpareServers 10</code></td></tr><tr><td><a href="directive-dict.html#Context" class="help">Context:</a></td><td>server config</td></tr><tr><td><a href="directive-dict.html#Status" class="help">Status:</a></td><td>MPM</td></tr><tr><td><a href="directive-dict.html#Module" class="help">Module:</a></td><td>prefork</td></tr></table></td></tr></table> <p>The <code class="directive">MaxSpareServers</code> directive sets the desired maximum number of <em>idle</em> child server processes. An idle process is one which is not handling a request. If there are @@ -91,7 +91,7 @@ accepting requests on network sockets</td></tr><tr><td><a class="help" href="dir <p>Tuning of this parameter should only be necessary on very busy sites. Setting this parameter to a large number is almost always a bad idea.</p> -<p><strong>See also </strong></p><ul><li><a class="directive" href="#minspareservers"><code class="directive">MinSpareServers</code></a></li><li><a class="directive" href="mpm_common.html#startservers"><code class="directive">StartServers</code></a></li></ul><hr/><h2><a name="MinSpareServers">MinSpareServers</a> <a name="minspareservers">Directive</a></h2><table bgcolor="#cccccc" border="0" cellspacing="0" cellpadding="1"><tr><td><table bgcolor="#ffffff"><tr><td><strong>Description: </strong></td><td>Minimum number of idle child server processes</td></tr><tr><td><a class="help" href="directive-dict.html#Syntax">Syntax:</a></td><td>MinSpareServers <em>number</em></td></tr><tr><td><a class="help" href="directive-dict.html#Default">Default:</a></td><td><code>MinSpareServers 5</code></td></tr><tr><td><a class="help" href="directive-dict.html#Context">Context:</a></td><td>server config</td></tr><tr><td><a class="help" href="directive-dict.html#Status">Status:</a></td><td>MPM</td></tr><tr><td><a class="help" href="directive-dict.html#Module">Module:</a></td><td>prefork</td></tr></table></td></tr></table> +<p><strong>See also </strong></p><ul><li><a href="#minspareservers" class="directive"><code class="directive">MinSpareServers</code></a></li><li><a href="mpm_common.html#startservers" class="directive"><code class="directive">StartServers</code></a></li></ul><hr/><h2><a name="MinSpareServers">MinSpareServers</a> <a name="minspareservers">Directive</a></h2><table cellpadding="1" cellspacing="0" border="0" bgcolor="#cccccc"><tr><td><table bgcolor="#ffffff"><tr><td><strong>Description: </strong></td><td>Minimum number of idle child server processes</td></tr><tr><td><a href="directive-dict.html#Syntax" class="help">Syntax:</a></td><td>MinSpareServers <em>number</em></td></tr><tr><td><a href="directive-dict.html#Default" class="help">Default:</a></td><td><code>MinSpareServers 5</code></td></tr><tr><td><a href="directive-dict.html#Context" class="help">Context:</a></td><td>server config</td></tr><tr><td><a href="directive-dict.html#Status" class="help">Status:</a></td><td>MPM</td></tr><tr><td><a href="directive-dict.html#Module" class="help">Module:</a></td><td>prefork</td></tr></table></td></tr></table> <p>The <code class="directive">MinSpareServers</code> directive sets the desired minimum number of <em>idle</em> child server processes. An idle process is one which is not handling a request. If there are @@ -103,4 +103,4 @@ accepting requests on network sockets</td></tr><tr><td><a class="help" href="dir always a bad idea.</p> <p>This directive has no effect on Microsoft Windows.</p> -<p><strong>See also </strong></p><ul><li><a class="directive" href="#maxspareservers"><code class="directive">MaxSpareServers</code></a></li><li><a class="directive" href="mpm_common.html#startservers"><code class="directive">StartServers</code></a></li></ul><hr/></blockquote><h3 align="center">Apache HTTP Server Version 2.0</h3><a href="./"><img src="../images/index.gif" alt="Index"/></a><a href="../"><img src="../images/home.gif" alt="Home"/></a></body></html>
\ No newline at end of file +<p><strong>See also </strong></p><ul><li><a href="#maxspareservers" class="directive"><code class="directive">MaxSpareServers</code></a></li><li><a href="mpm_common.html#startservers" class="directive"><code class="directive">StartServers</code></a></li></ul><hr/></blockquote><h3 align="center">Apache HTTP Server Version 2.0</h3><a href="./"><img src="../images/index.gif" alt="Index"/></a><a href="../"><img src="../images/home.gif" alt="Home"/></a></body></html>
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