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68 lines
8.7 KiB
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68 lines
8.7 KiB
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--><title>mpm_netware - 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 mpm_netware</h1><table bgcolor="#cccccc" cellpadding="0" cellspacing="1"><tr><td><table bgcolor="#ffffff"><tr><td valign="top"><span class="help">Description:</span></td><td>Multi-Processing Module implementing an exclusively threaded web
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server optimized for Novell NetWare</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_netware_module</td></tr></table></td></tr></table><h2>Summary</h2>
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<p>This Multi-Processing Module (MPM) implements an exclusively threaded web server
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that has been optimized for Novell NetWare.</p>
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<p>The main thread is responsible for launching child
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worker threads which listen for connections and serve them when they
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arrive. Apache always tries to maintain several <em>spare</em>
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or idle worker threads, which stand ready to serve incoming
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requests. In this way, clients do not need to wait for a new
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child threads to be spawned before their requests can be
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served.</p>
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<p>The <code>StartThreads</code>, <code>MinSpareThreads</code>,
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<code>MaxSpareThreads</code>, and <code>MaxThreads</code>
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regulate how the main thread creates worker threads to serve
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requests. In general, Apache is very self-regulating, so most
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sites do not need to adjust these directives from their default
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values. Sites which need to serve more than 250 simultaneous
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requests may need to increase <code>MaxThreads</code>, while
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sites with limited memory may need to decrease
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<code>MaxThreads</code> to keep the server from thrashing (spawning and
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terminating idle threads). More information about
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tuning process creation is provided in the <a href="../misc/perf-tuning.html">performance hints</a>
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documentation.</p>
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<p><code>MaxRequestsPerChild</code> controls how frequently the
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server recycles processes by killing old ones and launching new
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ones. On the NetWare OS it is highly recommended that this directive
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remain set to 0. This allows worker threads to continue servicing
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requests indefinitely.</p>
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<p>See also: <a href="../bind.html">Setting which addresses and
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ports Apache uses</a>.</p>
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<h2>Directives</h2><ul><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#maxrequestsperchild">MaxRequestsPerChild</a></li><li><a href="#maxsparethreads">MaxSpareThreads</a></li><li><a href="#maxthreads">MaxThreads</a></li><li><a href="#minsparethreads">MinSpareThreads</a></li><li><a href="mpm_common.html#sendbuffersize">SendBufferSize</a></li><li><a href="#startthreads">StartThreads</a></li><li><a href="#threadstacksize">ThreadStackSize</a></li></ul><hr/><h2><a name="MaxSpareThreads">MaxSpareThreads</a> <a name="maxsparethreads">Directive</a></h2><table bgcolor="#cccccc" border="0" cellspacing="0" cellpadding="1"><tr><td><table bgcolor="#ffffff"><tr><td><strong>Description: </strong></td><td/></tr><tr><td><a class="help" href="directive-dict.html#Syntax">Syntax:</a></td><td>MaxSpareThreads <em>number</em></td></tr><tr><td><a class="help" href="directive-dict.html#Default">Default:</a></td><td><code>MaxSpareThreads 100</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>mpm_netware</td></tr></table></td></tr></table>
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<p>The <code class="directive">MaxSpareThreads</code> directive sets the
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desired maximum number of <em>idle</em> worker threads. An idle
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worker thread is one which is not handling a request. If there are
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more than MaxSpareThreads idle, then the main thread will kill off
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the excess worker threads.</p>
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<p>Tuning of this parameter should only be necessary on very
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busy sites. Setting this parameter to a large number is almost
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always a bad idea.</p>
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<hr/><h2><a name="MaxThreads">MaxThreads</a> <a name="maxthreads">Directive</a></h2><table bgcolor="#cccccc" border="0" cellspacing="0" cellpadding="1"><tr><td><table bgcolor="#ffffff"><tr><td><strong>Description: </strong></td><td/></tr><tr><td><a class="help" href="directive-dict.html#Syntax">Syntax:</a></td><td>MaxThreads <em>number</em></td></tr><tr><td><a class="help" href="directive-dict.html#Default">Default:</a></td><td><code>MaxThreads 250</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>mpm_netware</td></tr></table></td></tr></table>
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<p>The MaxThreads directive sets the desired maximum
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number worker threads allowable.</p>
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<hr/><h2><a name="MinSpareThreads">MinSpareThreads</a> <a name="minsparethreads">Directive</a></h2><table bgcolor="#cccccc" border="0" cellspacing="0" cellpadding="1"><tr><td><table bgcolor="#ffffff"><tr><td><strong>Description: </strong></td><td/></tr><tr><td><a class="help" href="directive-dict.html#Syntax">Syntax:</a></td><td>MinSpareThreads <em>number</em></td></tr><tr><td><a class="help" href="directive-dict.html#Default">Default:</a></td><td><code>MinSpareThreads 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>mpm_netware</td></tr></table></td></tr></table>
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<p>The <code class="directive">MinSpareThreads</code> directive sets the
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desired minimum number of <em>idle</em> worker threads. An idle worker
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thread is one which is not handling a request. If there are fewer than
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MinSpareThreads idle, then the main thread spawns new worker.</p>
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<p>Tuning of this parameter should only be necessary on very
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busy sites. Setting this parameter to a large number is almost
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always a bad idea.</p>
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<hr/><h2><a name="StartThreads">StartThreads</a> <a name="startthreads">Directive</a></h2><table bgcolor="#cccccc" border="0" cellspacing="0" cellpadding="1"><tr><td><table bgcolor="#ffffff"><tr><td><strong>Description: </strong></td><td/></tr><tr><td><a class="help" href="directive-dict.html#Syntax">Syntax:</a></td><td>StartThreads <em>number</em></td></tr><tr><td><a class="help" href="directive-dict.html#Default">Default:</a></td><td><code>StartThreads 50</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>mpm_netware</td></tr></table></td></tr></table>
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<p>The StartThreads directive sets the desired
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number of worker threads to spawn and startup</p>
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<hr/><h2><a name="ThreadStackSize">ThreadStackSize</a> <a name="threadstacksize">Directive</a></h2><table bgcolor="#cccccc" border="0" cellspacing="0" cellpadding="1"><tr><td><table bgcolor="#ffffff"><tr><td><strong>Description: </strong></td><td/></tr><tr><td><a class="help" href="directive-dict.html#Syntax">Syntax:</a></td><td>ThreadStackSize <em>number</em></td></tr><tr><td><a class="help" href="directive-dict.html#Default">Default:</a></td><td><code>ThreadStackSize 65536</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>mpm_netware</td></tr></table></td></tr></table>
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<p>This directive tells the server what stack size to use for
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each of the running threads. If you ever get a stack overflow
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you will need to bump this number to a higher setting.</p>
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<hr/><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></blockquote></body></html> |