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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 06:33:50 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 06:33:50 +0000
commitfe39ffb8b90ae4e002ed73fe98617cd590abb467 (patch)
treeb80e5956907d8aeaaffe4e4f0c068c0e6157ce8b /docs/manual/mod/mod_status.html.en
parentInitial commit. (diff)
downloadapache2-fe39ffb8b90ae4e002ed73fe98617cd590abb467.tar.xz
apache2-fe39ffb8b90ae4e002ed73fe98617cd590abb467.zip
Adding upstream version 2.4.56.upstream/2.4.56upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"><head>
+<meta content="text/html; charset=UTF-8" http-equiv="Content-Type" />
+<!--
+ XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+ This file is generated from xml source: DO NOT EDIT
+ XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+ -->
+<title>mod_status - Apache HTTP Server Version 2.4</title>
+<link href="../style/css/manual.css" rel="stylesheet" media="all" type="text/css" title="Main stylesheet" />
+<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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+</script>
+
+<link href="../images/favicon.ico" rel="shortcut icon" /></head>
+<body>
+<div id="page-header">
+<p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/directives.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>
+<p class="apache">Apache HTTP Server Version 2.4</p>
+<img alt="" src="../images/feather.png" /></div>
+<div class="up"><a href="./"><img title="&lt;-" alt="&lt;-" src="../images/left.gif" /></a></div>
+<div id="path">
+<a href="http://www.apache.org/">Apache</a> &gt; <a href="http://httpd.apache.org/">HTTP Server</a> &gt; <a href="http://httpd.apache.org/docs/">Documentation</a> &gt; <a href="../">Version 2.4</a> &gt; <a href="./">Modules</a></div>
+<div id="page-content">
+<div id="preamble"><h1>Apache Module mod_status</h1>
+<div class="toplang">
+<p><span>Available Languages: </span><a href="../en/mod/mod_status.html" title="English">&nbsp;en&nbsp;</a> |
+<a href="../fr/mod/mod_status.html" hreflang="fr" rel="alternate" title="Français">&nbsp;fr&nbsp;</a> |
+<a href="../ja/mod/mod_status.html" hreflang="ja" rel="alternate" title="Japanese">&nbsp;ja&nbsp;</a> |
+<a href="../ko/mod/mod_status.html" hreflang="ko" rel="alternate" title="Korean">&nbsp;ko&nbsp;</a> |
+<a href="../tr/mod/mod_status.html" hreflang="tr" rel="alternate" title="Türkçe">&nbsp;tr&nbsp;</a></p>
+</div>
+<table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>Provides information on server activity and
+performance</td></tr>
+<tr><th><a href="module-dict.html#Status">Status:</a></th><td>Base</td></tr>
+<tr><th><a href="module-dict.html#ModuleIdentifier">Module Identifier:</a></th><td>status_module</td></tr>
+<tr><th><a href="module-dict.html#SourceFile">Source File:</a></th><td>mod_status.c</td></tr></table>
+<h3>Summary</h3>
+
+ <p>The Status module allows a server administrator to find out
+ how well their server is performing. A HTML page is presented
+ that gives the current server statistics in an easily readable
+ form. If required this page can be made to automatically
+ refresh (given a compatible browser). Another page gives a
+ simple machine-readable list of the current server state.</p>
+
+ <p>The details given are:</p>
+
+ <ul>
+ <li>The number of workers serving requests</li>
+
+ <li>The number of idle workers</li>
+
+ <li>The status of each worker, the number of requests that
+ worker has performed and the total number of bytes served by
+ the worker (*)</li>
+
+ <li>A total number of accesses and byte count served (*)</li>
+
+ <li>The time the server was started/restarted and the time it
+ has been running for</li>
+
+ <li>Averages giving the number of requests per second, the
+ number of bytes served per second and the average number of
+ bytes per request (*)</li>
+
+ <li>The current percentage CPU used by each worker and in
+ total by all workers combined (*)</li>
+
+ <li>The current hosts and requests being processed (*)</li>
+ </ul>
+
+ <p>The lines marked "(*)" are only available if
+ <code class="directive"><a href="../mod/core.html#extendedstatus">ExtendedStatus</a></code>
+ is <code>On</code>. In version 2.3.6, loading mod_status will
+ toggle <code class="directive"><a href="../mod/core.html#extendedstatus">ExtendedStatus</a></code> On
+ by default.</p>
+</div>
+<div id="quickview"><a href="https://www.apache.org/foundation/contributing.html" class="badge"><img src="https://www.apache.org/images/SupportApache-small.png" alt="Support Apache!" /></a><h3>Topics</h3>
+<ul id="topics">
+<li><img alt="" src="../images/down.gif" /> <a href="#enable">Enabling Status Support</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#autoupdate">Automatic Updates</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#machinereadable">Machine Readable Status File</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#troubleshoot">Using server-status to troubleshoot</a></li>
+</ul><h3 class="directives">Directives</h3>
+<p>This module provides no
+ directives.</p>
+<h3>Bugfix checklist</h3><ul class="seealso"><li><a href="https://www.apache.org/dist/httpd/CHANGES_2.4">httpd changelog</a></li><li><a href="https://bz.apache.org/bugzilla/buglist.cgi?bug_status=__open__&amp;list_id=144532&amp;product=Apache%20httpd-2&amp;query_format=specific&amp;order=changeddate%20DESC%2Cpriority%2Cbug_severity&amp;component=mod_status">Known issues</a></li><li><a href="https://bz.apache.org/bugzilla/enter_bug.cgi?product=Apache%20httpd-2&amp;component=mod_status">Report a bug</a></li></ul><h3>See also</h3>
+<ul class="seealso">
+<li><a href="#comments_section">Comments</a></li></ul></div>
+<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="section">
+<h2><a name="enable" id="enable">Enabling Status Support</a></h2>
+
+
+ <p>To enable status reports only for browsers from the example.com
+ domain add this code to your <code>httpd.conf</code>
+ configuration file</p>
+<pre class="prettyprint lang-config">&lt;Location "/server-status"&gt;
+ SetHandler server-status
+ Require host example.com
+&lt;/Location&gt;</pre>
+
+
+ <p>You can now access server statistics by using a Web browser
+ to access the page
+ <code>http://your.server.name/server-status</code></p>
+</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="section">
+<h2><a name="autoupdate" id="autoupdate">Automatic Updates</a></h2>
+
+
+ <p>You can get the status page to update itself automatically if
+ you have a browser that supports "refresh". Access the page
+ <code>http://your.server.name/server-status?refresh=N</code> to
+ refresh the page every N seconds.</p>
+
+</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="section">
+<h2><a name="machinereadable" id="machinereadable">Machine Readable Status File</a></h2>
+
+
+ <p>A machine-readable version of the status file is available by
+ accessing the page
+ <code>http://your.server.name/server-status?auto</code>. This
+ is useful when automatically run, see the Perl program
+ <code>log_server_status</code>, which you will find in the
+ <code>/support</code> directory of your Apache HTTP Server installation.</p>
+
+ <div class="note">
+ <strong>It should be noted that if <code class="module"><a href="../mod/mod_status.html">mod_status</a></code> is
+ loaded into the server, its handler capability is available
+ in <em>all</em> configuration files, including
+ <em>per</em>-directory files (<em>e.g.</em>,
+ <code>.htaccess</code>). This may have security-related
+ ramifications for your site.</strong>
+ </div>
+
+</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="section">
+<h2><a name="troubleshoot" id="troubleshoot">Using server-status to troubleshoot</a></h2>
+
+
+ <p>The <code>server-status</code> page may be used as a starting
+ place for troubleshooting a situation where your server is consuming
+ all available resources (CPU or memory), and you wish to identify
+ which requests or clients are causing the problem.</p>
+
+ <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
+ the full request and client information for each child or
+ thread.</p>
+
+ <p>Now look in your process list (using <code>top</code>, or similar
+ process viewing utility) to identify the specific processes that are
+ the main culprits. Order the output of <code>top</code> by CPU
+ usage, or memory usage, depending on what problem you're trying to
+ address.</p>
+
+ <p>Reload the <code>server-status</code> page, and look for those process
+ ids, and you'll be able to see what request is being served by that
+ process, for what client. Requests are transient, so you may need to
+ try several times before you catch it in the act, so to speak.</p>
+
+ <p>This process <em>should</em> give you some idea what client, or
+ what type of requests, are primarily responsible for your load
+ problems. Often you will identify a particular web application that
+ is misbehaving, or a particular client that is attacking your
+ site.</p>
+
+</div>
+</div>
+<div class="bottomlang">
+<p><span>Available Languages: </span><a href="../en/mod/mod_status.html" title="English">&nbsp;en&nbsp;</a> |
+<a href="../fr/mod/mod_status.html" hreflang="fr" rel="alternate" title="Français">&nbsp;fr&nbsp;</a> |
+<a href="../ja/mod/mod_status.html" hreflang="ja" rel="alternate" title="Japanese">&nbsp;ja&nbsp;</a> |
+<a href="../ko/mod/mod_status.html" hreflang="ko" rel="alternate" title="Korean">&nbsp;ko&nbsp;</a> |
+<a href="../tr/mod/mod_status.html" hreflang="tr" rel="alternate" title="Türkçe">&nbsp;tr&nbsp;</a></p>
+</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&amp;A section. Comments placed here should be pointed towards suggestions on improving the documentation or server, and may be removed 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 Libera.chat, or sent to our <a href="https://httpd.apache.org/lists.html">mailing lists</a>.</div>
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