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202 lines
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<?xml version="1.0" encoding="ISO-8859-1"?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"><head><!--
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XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
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This file is generated from xml source: DO NOT EDIT
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XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
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-->
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<title>mod_status - Apache HTTP Server</title>
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<link href="../style/css/manual.css" rel="stylesheet" media="all" type="text/css" title="Main stylesheet" />
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<link href="../style/css/manual-loose-100pc.css" rel="alternate stylesheet" media="all" type="text/css" title="No Sidebar - Default font size" />
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<link href="../style/css/manual-print.css" rel="stylesheet" media="print" type="text/css" /><link rel="stylesheet" type="text/css" href="../style/css/prettify.css" />
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<script src="../style/scripts/prettify.js" type="text/javascript">
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</script>
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<link href="../images/favicon.ico" rel="shortcut icon" /></head>
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<body>
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<div id="page-header">
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<p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/quickreference.html">Directives</a> | <a href="http://wiki.apache.org/httpd/FAQ">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p>
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<p class="apache">Apache HTTP Server Version 2.5</p>
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<img alt="" src="../images/feather.gif" /></div>
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<div class="up"><a href="./"><img title="<-" alt="<-" src="../images/left.gif" /></a></div>
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<div id="path">
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<a href="http://www.apache.org/">Apache</a> > <a href="http://httpd.apache.org/">HTTP Server</a> > <a href="http://httpd.apache.org/docs/">Documentation</a> > <a href="../">Version 2.5</a> > <a href="./">Modules</a></div>
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<div id="page-content">
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<div id="preamble"><h1>Apache Module mod_status</h1>
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<div class="toplang">
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<p><span>Available Languages: </span><a href="../en/mod/mod_status.html" title="English"> en </a> |
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<a href="../fr/mod/mod_status.html" hreflang="fr" rel="alternate" title="Fran<61>ais"> fr </a> |
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<a href="../ja/mod/mod_status.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> |
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<a href="../ko/mod/mod_status.html" hreflang="ko" rel="alternate" title="Korean"> ko </a> |
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<a href="../tr/mod/mod_status.html" hreflang="tr" rel="alternate" title="T<>rk<72>e"> tr </a></p>
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</div>
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<table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>Provides information on server activity and
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performance</td></tr>
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<tr><th><a href="module-dict.html#Status">Status:</a></th><td>Base</td></tr>
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<tr><th><a href="module-dict.html#ModuleIdentifier">Module<EFBFBD>Identifier:</a></th><td>status_module</td></tr>
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<tr><th><a href="module-dict.html#SourceFile">Source<EFBFBD>File:</a></th><td>mod_status.c</td></tr></table>
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<h3>Summary</h3>
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<p>The Status module allows a server administrator to find out
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how well their server is performing. A HTML page is presented
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that gives the current server statistics in an easily readable
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form. If required this page can be made to automatically
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refresh (given a compatible browser). Another page gives a
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simple machine-readable list of the current server state.</p>
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<p>The details given are:</p>
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<ul>
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<li>The number of worker serving requests</li>
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<li>The number of idle worker</li>
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<li>The status of each worker, the number of requests that
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worker has performed and the total number of bytes served by
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the worker (*)</li>
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<li>A total number of accesses and byte count served (*)</li>
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<li>The time the server was started/restarted and the time it
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has been running for</li>
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<li>Averages giving the number of requests per second, the
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number of bytes served per second and the average number of
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bytes per request (*)</li>
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<li>The current percentage CPU used by each worker and in
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total by all workers combined (*)</li>
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<li>The current hosts and requests being processed (*)</li>
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</ul>
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<p>The lines marked "(*)" are only available if
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<code class="directive"><a href="../mod/core.html#extendedstatus">ExtendedStatus</a></code>
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is <code>On</code>. In version 2.3.6, loading mod_status will
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toggle <code class="directive"><a href="../mod/core.html#extendedstatus">ExtendedStatus</a></code> On
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by default.</p>
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</div>
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<div id="quickview"><h3 class="directives">Directives</h3>
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<p>This module provides no
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directives.</p>
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<h3>Topics</h3>
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<ul id="topics">
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<li><img alt="" src="../images/down.gif" /> <a href="#enable">Enabling Status Support</a></li>
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<li><img alt="" src="../images/down.gif" /> <a href="#autoupdate">Automatic Updates</a></li>
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<li><img alt="" src="../images/down.gif" /> <a href="#machinereadable">Machine Readable Status File</a></li>
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<li><img alt="" src="../images/down.gif" /> <a href="#troubleshoot">Using server-status to troubleshoot</a></li>
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</ul><ul class="seealso"><li><a href="#comments_section">Comments</a></li></ul></div>
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<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
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<div class="section">
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<h2><a name="enable" id="enable">Enabling Status Support</a></h2>
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<p>To enable status reports only for browsers from the example.com
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domain add this code to your <code>httpd.conf</code>
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configuration file</p>
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<pre class="prettyprint lang-config">
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<Location /server-status>
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SetHandler server-status
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Require host example.com
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</Location>
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</pre>
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<p>You can now access server statistics by using a Web browser
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to access the page
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<code>http://your.server.name/server-status</code></p>
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</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
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<div class="section">
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<h2><a name="autoupdate" id="autoupdate">Automatic Updates</a></h2>
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<p>You can get the status page to update itself automatically if
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you have a browser that supports "refresh". Access the page
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<code>http://your.server.name/server-status?refresh=N</code> to
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refresh the page every N seconds.</p>
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</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
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<div class="section">
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<h2><a name="machinereadable" id="machinereadable">Machine Readable Status File</a></h2>
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<p>A machine-readable version of the status file is available by
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accessing the page
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<code>http://your.server.name/server-status?auto</code>. This
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is useful when automatically run, see the Perl program
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<code>log_server_status</code>, which you will find in the
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<code>/support</code> directory of your Apache HTTP Server installation.</p>
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<div class="note">
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<strong>It should be noted that if <code class="module"><a href="../mod/mod_status.html">mod_status</a></code> is
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loaded into the server, its handler capability is available
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in <em>all</em> configuration files, including
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<em>per</em>-directory files (<em>e.g.</em>,
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<code>.htaccess</code>). This may have security-related
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ramifications for your site.</strong>
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</div>
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</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
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<div class="section">
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<h2><a name="troubleshoot" id="troubleshoot">Using server-status to troubleshoot</a></h2>
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<p>The <code>server-status</code> page may be used as a starting
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place for troubleshooting a situation where your server is consuming
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all available resources (CPU or memory), and you wish to identify
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which requests or clients are causing the problem.</p>
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<p>First, ensure that you have <code class="directive"><a href="../mod/core.html#extendedstatus">ExtendedStatus</a></code> set on, so that you can see
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the full request and client information for each child or
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thread.</p>
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<p>Now look in your process list (using <code>top</code>, or similar
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process viewing utility) to identify the specific processes that are
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the main culprits. Order the output of <code>top</code> by CPU
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usage, or memory usage, depending on what problem you're trying to
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address.</p>
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<p>Reload the <code>server-status</code> page, and look for those process
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ids, and you'll be able to see what request is being served by that
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process, for what client. Requests are transient, so you may need to
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try several times before you catch it in the act, so to speak.</p>
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<p>This process <em>should</em> give you some idea what client, or
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what type of requests, are primarily responsible for your load
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problems. Often you will identify a particular web application that
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is misbehaving, or a particular client that is attacking your
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site.</p>
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</div>
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</div>
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<div class="bottomlang">
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<p><span>Available Languages: </span><a href="../en/mod/mod_status.html" title="English"> en </a> |
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<a href="../fr/mod/mod_status.html" hreflang="fr" rel="alternate" title="Fran<61>ais"> fr </a> |
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<a href="../ja/mod/mod_status.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> |
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<a href="../ko/mod/mod_status.html" hreflang="ko" rel="alternate" title="Korean"> ko </a> |
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<a href="../tr/mod/mod_status.html" hreflang="tr" rel="alternate" title="T<>rk<72>e"> tr </a></p>
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</div><div class="top"><a href="#page-header"><img src="../images/up.gif" alt="top" /></a></div><div class="section"><h2><a id="comments_section" name="comments_section">Comments</a></h2><div class="warning"><strong>Notice:</strong><br />This is not a Q&A section. Comments placed here should be pointed towards suggestions on improving the documentation or server, and may be removed again by our moderators if they are either implemented or considered invalid/off-topic. Questions on how to manage the Apache HTTP Server should be directed at either our IRC channel, #httpd, on Freenode, or sent to our <a href="http://httpd.apache.org/lists.html">mailing lists</a>.</div>
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<p class="apache">Copyright 2013 The Apache Software Foundation.<br />Licensed under the <a href="http://www.apache.org/licenses/LICENSE-2.0">Apache License, Version 2.0</a>.</p>
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<p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/quickreference.html">Directives</a> | <a href="http://wiki.apache.org/httpd/FAQ">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p></div><script type="text/javascript"><!--//--><![CDATA[//><!--
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