fd-limits.html.en revision 4aa603e6448b99f9371397d439795c91a93637ea
d8a47f7a3f857a43664484552cf83bf170e4629dnd<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
85cbddd6c5822962e3e30a5fa6f45ee4857bc467nd<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"><head><!--
ec1d455940a366b63e1cce2f442a445347394a90nd XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
55c79512242fd281202cd57ca18defac696440f5kess This file is generated from xml source: DO NOT EDIT
d5d794fc2f4cc9ca6d6da17cfa2cdcd8d244bacdnd XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
031b91a62d25106ae69d4693475c79618dd5e884fielding<title>File Descriptor Limits - Apache HTTP Server</title>
031b91a62d25106ae69d4693475c79618dd5e884fielding<link href="/style/css/manual.css" rel="stylesheet" media="all" type="text/css" title="Main stylesheet" />
031b91a62d25106ae69d4693475c79618dd5e884fielding<link href="/style/css/manual-loose-100pc.css" rel="alternate stylesheet" media="all" type="text/css" title="No Sidebar - Default font size" />
031b91a62d25106ae69d4693475c79618dd5e884fielding<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" />
031b91a62d25106ae69d4693475c79618dd5e884fielding<script src="/style/scripts/prettify.min.js" type="text/javascript">
d5d794fc2f4cc9ca6d6da17cfa2cdcd8d244bacdnd<link href="/images/favicon.ico" rel="shortcut icon" /></head>
d5d794fc2f4cc9ca6d6da17cfa2cdcd8d244bacdnd<body id="manual-page" class="no-sidebar"><div id="page-header">
d5d794fc2f4cc9ca6d6da17cfa2cdcd8d244bacdnd<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>
d5d794fc2f4cc9ca6d6da17cfa2cdcd8d244bacdnd<div class="up"><a href="./"><img title="<-" alt="<-" src="/images/left.gif" /></a></div>
d5d794fc2f4cc9ca6d6da17cfa2cdcd8d244bacdnd<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="./">Virtual Hosts</a></div><div id="page-content"><div id="preamble"><h1>File Descriptor Limits</h1>
55c79512242fd281202cd57ca18defac696440f5kess<p><span>Available Languages: </span><a href="/en/vhosts/fd-limits.html" title="English"> en </a> |
55c79512242fd281202cd57ca18defac696440f5kess<a href="/fr/vhosts/fd-limits.html" hreflang="fr" rel="alternate" title="Fran�ais"> fr </a> |
55c79512242fd281202cd57ca18defac696440f5kess<a href="/ja/vhosts/fd-limits.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> |
ec1d455940a366b63e1cce2f442a445347394a90nd<a href="/ko/vhosts/fd-limits.html" hreflang="ko" rel="alternate" title="Korean"> ko </a> |
ec1d455940a366b63e1cce2f442a445347394a90nd<a href="/tr/vhosts/fd-limits.html" hreflang="tr" rel="alternate" title="T�rk�e"> tr </a></p>
55c79512242fd281202cd57ca18defac696440f5kess <p>When using a large number of Virtual Hosts, Apache may run
55c79512242fd281202cd57ca18defac696440f5kess out of available file descriptors (sometimes called <cite>file
8f057347a12e831fdf567da83de2fa581580298dnd handles</cite>) if each Virtual Host specifies different log
8f057347a12e831fdf567da83de2fa581580298dnd files. The total number of file descriptors used by Apache is
8f057347a12e831fdf567da83de2fa581580298dnd one for each distinct error log file, one for every other log
8f057347a12e831fdf567da83de2fa581580298dnd file directive, plus 10-20 for internal use. Unix operating
7db9f691a00ead175b03335457ca296a33ddf31bnd systems limit the number of file descriptors that may be used
sections, but only log to the main log files. (See <a href="#splitlogs">Splitting up your log files</a>, below, for more
entries. This can be done using the <code class="directive"><a href="/mod/mod_log_config.html#logformat">
<code class="directive"><a href="/mod/core.html#servername">ServerName</a></code> directive) prepended to
each line. (See <code class="module"><a href="/mod/mod_log_config.html">mod_log_config</a></code> for
file per virtual host) you can use the program <code><a href="/programs/other.html">split-logfile</a></code> to accomplish
<p><span>Available Languages: </span><a href="/en/vhosts/fd-limits.html" title="English"> en </a> |
<a href="/fr/vhosts/fd-limits.html" hreflang="fr" rel="alternate" title="Fran�ais"> fr </a> |
<a href="/ja/vhosts/fd-limits.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> |
<a href="/ko/vhosts/fd-limits.html" hreflang="ko" rel="alternate" title="Korean"> ko </a> |
<a href="/tr/vhosts/fd-limits.html" hreflang="tr" rel="alternate" title="T�rk�e"> tr </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&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>
var comments_identifier = 'http://httpd.apache.org/docs/trunk/vhosts/fd-limits.html';
if (w.location.hostname.toLowerCase() == "httpd.apache.org") {
d.write('<div id="comments_thread"><\/div>');
var s = d.createElement('script');
s.type = 'text/javascript';
s.async = true;
s.src = 'https://comments.apache.org/show_comments.lua?site=' + comments_shortname + '&page=' + comments_identifier;
(d.getElementsByTagName('head')[0] || d.getElementsByTagName('body')[0]).appendChild(s);
d.write('<div id="comments_thread">Comments are disabled for this page at the moment.<\/div>');
<p class="apache">Copyright 2014 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>
<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[//><!--