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-<title>mod_cache - Apache HTTP Server</title>
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-<p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/directives.html">Directives</a> | <a href="../faq/">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p>
-<p class="apache">Apache HTTP Server Version 2.0</p>
-<img alt="" src="../images/feather.gif" /></div>
-<div class="up"><a href="./"><img title="<-" alt="<-" src="../images/left.gif" /></a></div>
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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 2.0</a> > <a href="./">Modules</a></div>
-<div id="page-content">
-<div id="preamble"><h1>Apache Module mod_cache</h1>
-<div class="toplang">
-<p><span>Available Languages: </span><a href="../en/mod/mod_cache.html" title="English"> en </a> |
-<a href="../ko/mod/mod_cache.html" hreflang="ko" rel="alternate" title="Korean"> ko </a></p>
-</div>
-<table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>Content cache keyed to URIs.</td></tr>
-<tr><th><a href="module-dict.html#Status">Status:</a></th><td>Experimental</td></tr>
-<tr><th><a href="module-dict.html#ModuleIdentifier">Module Identifier:</a></th><td>cache_module</td></tr>
-<tr><th><a href="module-dict.html#SourceFile">Source File:</a></th><td>mod_cache.c</td></tr></table>
-<h3>Summary</h3>
-
- <div class="warning">
- This module is experimental. Documentation is still under development...
- </div>
-
- <p><code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> implements an <a href="http://www.ietf.org/rfc/rfc2616.txt">RFC 2616</a> compliant HTTP
- content cache that can be used to cache either local or proxied content.
- <code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> requires the services of one or more storage
- management modules. Two storage management modules are included in
- the base Apache distribution:</p>
- <dl>
- <dt><code class="module"><a href="../mod/mod_disk_cache.html">mod_disk_cache</a></code></dt>
- <dd>implements a disk based storage manager.</dd>
-
- <dt><code class="module"><a href="../mod/mod_mem_cache.html">mod_mem_cache</a></code></dt>
- <dd>implements a memory based storage manager.
- <code class="module"><a href="../mod/mod_mem_cache.html">mod_mem_cache</a></code> can be configured to operate in two
- modes: caching open file descriptors or caching objects in heap storage.
- <code class="module"><a href="../mod/mod_mem_cache.html">mod_mem_cache</a></code> can be used to cache locally generated content
- or to cache backend server content for <code class="module"><a href="../mod/mod_proxy.html">mod_proxy</a></code> when
- configured using <code class="directive"><a href="../mod/mod_proxy.html#proxypass">ProxyPass</a></code>
- (aka <dfn>reverse proxy</dfn>)</dd>
- </dl>
-
- <p>Content is stored in and retrieved from the cache using URI based keys. Content with
- access protection is not cached.</p>
-</div>
-<div id="quickview"><h3 class="directives">Directives</h3>
-<ul id="toc">
-<li><img alt="" src="../images/down.gif" /> <a href="#cachedefaultexpire">CacheDefaultExpire</a></li>
-<li><img alt="" src="../images/down.gif" /> <a href="#cachedisable">CacheDisable</a></li>
-<li><img alt="" src="../images/down.gif" /> <a href="#cacheenable">CacheEnable</a></li>
-<li><img alt="" src="../images/down.gif" /> <a href="#cacheforcecompletion">CacheForceCompletion</a></li>
-<li><img alt="" src="../images/down.gif" /> <a href="#cacheignorecachecontrol">CacheIgnoreCacheControl</a></li>
-<li><img alt="" src="../images/down.gif" /> <a href="#cacheignoreheaders">CacheIgnoreHeaders</a></li>
-<li><img alt="" src="../images/down.gif" /> <a href="#cacheignorenolastmod">CacheIgnoreNoLastMod</a></li>
-<li><img alt="" src="../images/down.gif" /> <a href="#cachelastmodifiedfactor">CacheLastModifiedFactor</a></li>
-<li><img alt="" src="../images/down.gif" /> <a href="#cachemaxexpire">CacheMaxExpire</a></li>
-</ul>
-<h3>Topics</h3>
-<ul id="topics">
-<li><img alt="" src="../images/down.gif" /> <a href="#related">Related Modules and Directives</a></li>
-<li><img alt="" src="../images/down.gif" /> <a href="#sampleconf">Sample Configuration</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="related" id="related">Related Modules and Directives</a></h2>
- <table class="related"><tr><th>Related Modules</th><th>Related Directives</th></tr><tr><td><ul><li><code class="module"><a href="../mod/mod_disk_cache.html">mod_disk_cache</a></code></li><li><code class="module"><a href="../mod/mod_mem_cache.html">mod_mem_cache</a></code></li></ul></td><td><ul><li><code class="directive"><a href="../mod/mod_disk_cache.html#cacheroot">CacheRoot</a></code></li><li><code class="directive"><a href="../mod/mod_disk_cache.html#cachesize">CacheSize</a></code></li><li><code class="directive"><a href="../mod/mod_disk_cache.html#cachegcinterval">CacheGcInterval</a></code></li><li><code class="directive"><a href="../mod/mod_disk_cache.html#cachedirlevels">CacheDirLevels</a></code></li><li><code class="directive"><a href="../mod/mod_disk_cache.html#cachedirlength">CacheDirLength</a></code></li><li><code class="directive"><a href="../mod/mod_disk_cache.html#cacheexpirycheck">CacheExpiryCheck</a></code></li><li><code class="directive"><a href="../mod/mod_disk_cache.html#cacheminfilesize">CacheMinFileSize</a></code></li><li><code class="directive"><a href="../mod/mod_disk_cache.html#cachemaxfilesize">CacheMaxFileSize</a></code></li><li><code class="directive"><a href="../mod/mod_disk_cache.html#cachetimemargin">CacheTimeMargin</a></code></li><li><code class="directive"><a href="../mod/mod_disk_cache.html#cachegcdaily">CacheGcDaily</a></code></li><li><code class="directive"><a href="../mod/mod_disk_cache.html#cachegcunused">CacheGcUnused</a></code></li><li><code class="directive"><a href="../mod/mod_disk_cache.html#cachegcclean">CacheGcClean</a></code></li><li><code class="directive"><a href="../mod/mod_disk_cache.html#cachegcmemusage">CacheGcMemUsage</a></code></li><li><code class="directive"><a href="../mod/mod_mem_cache.html#mcachesize">MCacheSize</a></code></li><li><code class="directive"><a href="../mod/mod_mem_cache.html#mcachemaxobjectcount">MCacheMaxObjectCount</a></code></li><li><code class="directive"><a href="../mod/mod_mem_cache.html#mcacheminobjectsize">MCacheMinObjectSize</a></code></li><li><code class="directive"><a href="../mod/mod_mem_cache.html#mcachemaxobjectsize">MCacheMaxObjectSize</a></code></li><li><code class="directive"><a href="../mod/mod_mem_cache.html#mcacheremovalalgorithm">MCacheRemovalAlgorithm</a></code></li><li><code class="directive"><a href="../mod/mod_mem_cache.html#mcachemaxstreamingbuffer">MCacheMaxStreamingBuffer</a></code></li></ul></td></tr></table>
-</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
-<div class="section">
-<h2><a name="sampleconf" id="sampleconf">Sample Configuration</a></h2>
- <div class="example"><h3>Sample httpd.conf</h3><p><code>
- #<br />
- # Sample Cache Configuration<br />
- #<br />
- LoadModule cache_module modules/mod_cache.so<br />
- <br />
- <IfModule mod_cache.c><br />
- <span class="indent">
- #LoadModule disk_cache_module modules/mod_disk_cache.so<br />
- <IfModule mod_disk_cache.c><br />
- <span class="indent">
- CacheRoot c:/cacheroot<br />
- CacheSize 256<br />
- CacheEnable disk /<br />
- CacheDirLevels 5<br />
- CacheDirLength 3<br />
- </span>
- </IfModule> <br />
- <br />
- LoadModule mem_cache_module modules/mod_mem_cache.so<br />
- <IfModule mod_mem_cache.c><br />
- <span class="indent">
- CacheEnable mem /<br />
- MCacheSize 4096<br />
- MCacheMaxObjectCount 100<br />
- MCacheMinObjectSize 1<br />
- MCacheMaxObjectSize 2048<br />
- </span>
- </IfModule><br />
- </span>
- </IfModule>
- </code></p></div>
-</div>
-<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
-<div class="directive-section"><h2><a name="CacheDefaultExpire" id="CacheDefaultExpire">CacheDefaultExpire</a> <a name="cachedefaultexpire" id="cachedefaultexpire">Directive</a></h2>
-<table class="directive">
-<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>The default duration to cache a document when no expiry date is specified.</td></tr>
-<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>CacheDefaultExpire <var>seconds</var></code></td></tr>
-<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>CacheDefaultExpire 3600 (one hour)</code></td></tr>
-<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host</td></tr>
-<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Experimental</td></tr>
-<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr>
-</table>
- <p>The <code class="directive">CacheDefaultExpire</code> directive specifies a default time,
- in seconds, to cache a document if neither an expiry date nor last-modified date are provided
- with the document. The value specified with the <code class="directive">CacheMaxExpire</code>
- directive does <em>not</em> override this setting.</p>
-
- <div class="example"><p><code>
- CacheDefaultExpire 86400
- </code></p></div>
-
-</div>
-<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
-<div class="directive-section"><h2><a name="CacheDisable" id="CacheDisable">CacheDisable</a> <a name="cachedisable" id="cachedisable">Directive</a></h2>
-<table class="directive">
-<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Disable caching of specified URLs</td></tr>
-<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>CacheDisable <var> url-string</var></code></td></tr>
-<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host</td></tr>
-<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Experimental</td></tr>
-<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr>
-</table>
- <p>The <code class="directive">CacheDisable</code> directive instructs
- <code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> to <em>not</em> cache urls at or below
- <var>url-string</var>.</p>
-
- <div class="example"><h3>Example</h3><p><code>
- CacheDisable /local_files
- </code></p></div>
-
-</div>
-<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
-<div class="directive-section"><h2><a name="CacheEnable" id="CacheEnable">CacheEnable</a> <a name="cacheenable" id="cacheenable">Directive</a></h2>
-<table class="directive">
-<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Enable caching of specified URLs using a specified storage
-manager</td></tr>
-<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>CacheEnable <var>cache_type</var> <var>url-string</var></code></td></tr>
-<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host</td></tr>
-<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Experimental</td></tr>
-<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr>
-</table>
- <p>The <code class="directive">CacheEnable</code> directive instructs
- <code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> to cache urls at or below
- <var>url-string</var>. The cache storage manager is specified with the
- <var>cache_type</var> argument. <var>cache_type</var> <code> mem</code>
- instructs <code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> to use the memory based storage
- manager implemented by <code class="module"><a href="../mod/mod_mem_cache.html">mod_mem_cache</a></code>.
- <var>cache_type</var> <code>disk</code> instructs
- <code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> to use the disk based storage manager
- implemented by <code class="module"><a href="../mod/mod_disk_cache.html">mod_disk_cache</a></code>.
- <var>cache_type</var> <code>fd</code> instructs
- <code class="module"><a href="../mod/mod_cache.html">mod_cache</a></code> to use the file descriptor cache implemented
- by <code class="module"><a href="../mod/mod_mem_cache.html">mod_mem_cache</a></code>.</p>
- <p>In the event that the URL space overlaps between different
- <code class="directive">CacheEnable</code> directives (as in the example below),
- each possible storage manager will be run until the first one that
- actually processes the request. The order in which the storage managers are
- run is determined by the order of the <code class="directive">CacheEnable</code>
- directives in the configuration file.</p>
-
- <div class="example"><p><code>
- CacheEnable mem /manual<br />
- CacheEnable fd /images<br />
- CacheEnable disk /<br />
- </code></p></div>
-
-</div>
-<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
-<div class="directive-section"><h2><a name="CacheForceCompletion" id="CacheForceCompletion">CacheForceCompletion</a> <a name="cacheforcecompletion" id="cacheforcecompletion">Directive</a></h2>
-<table class="directive">
-<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Percentage of document served, after which the server
-will complete caching the file even if the request is cancelled.</td></tr>
-<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>CacheForceCompletion <var>Percentage</var></code></td></tr>
-<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>CacheForceCompletion 60</code></td></tr>
-<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host</td></tr>
-<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Experimental</td></tr>
-<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr>
-</table>
- <p>Ordinarily, if a request is cancelled while the response is being
- cached and delivered to the client the processing of the response will
- stop and the cache entry will be removed. The
- <code class="directive">CacheForceCompletion</code> directive specifies a
- threshold beyond which the document will continue to be cached to
- completion, even if the request is cancelled.</p>
-
- <p>The threshold is a percentage specified as a value between
- <code>1</code> and <code>100</code>. A value of <code>0</code>
- specifies that the default be used. A value of <code>100</code>
- will only cache documents that are served in their entirety. A value
- between 60 and 90 is recommended.</p>
-
- <div class="example"><p><code>
- CacheForceCompletion 80
- </code></p></div>
-
- <div class="warning"><h3>Note:</h3>
- This feature is currently <em>not</em> implemented.
- </div>
-
-</div>
-<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
-<div class="directive-section"><h2><a name="CacheIgnoreCacheControl" id="CacheIgnoreCacheControl">CacheIgnoreCacheControl</a> <a name="cacheignorecachecontrol" id="cacheignorecachecontrol">Directive</a></h2>
-<table class="directive">
-<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Ignore the fact that the client requested the content not be
-cached.</td></tr>
-<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>CacheIgnoreCacheControl On|Off</code></td></tr>
-<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>CacheIgnoreCacheControl Off</code></td></tr>
-<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host</td></tr>
-<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Experimental</td></tr>
-<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr>
-</table>
- <p>Ordinarily, documents with no-cache or no-store header values will not be stored in the cache.
- The <code class="directive">CacheIgnoreCacheControl</code> directive allows this behavior to be overridden.
- <code class="directive">CacheIgnoreCacheControl</code> On tells the server to attempt to cache the document
- even if it contains no-cache or no-store header values. Documents requiring authorization will
- <em>never</em> be cached.</p>
-
- <div class="example"><p><code>
- CacheIgnoreCacheControl On
- </code></p></div>
-
-</div>
-<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
-<div class="directive-section"><h2><a name="CacheIgnoreHeaders" id="CacheIgnoreHeaders">CacheIgnoreHeaders</a> <a name="cacheignoreheaders" id="cacheignoreheaders">Directive</a></h2>
-<table class="directive">
-<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Do not store the given HTTP header(s) in the cache.
-</td></tr>
-<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>CacheIgnoreHeaders <var>header-string</var> [<var>header-string</var>] ...</code></td></tr>
-<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>CacheIgnoreHeaders None</code></td></tr>
-<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host</td></tr>
-<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Experimental</td></tr>
-<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr>
-</table>
- <p>According to RFC 2616, hop-by-hop HTTP headers are not stored in
- the cache. The following HTTP headers are hop-by-hop headers and thus
- do not get stored in the cache in <em>any</em> case regardless of the
- setting of <code class="directive">CacheIgnoreHeaders</code>:</p>
-
- <ul>
- <li><code>Connection</code></li>
- <li><code>Keep-Alive</code></li>
- <li><code>Proxy-Authenticate</code></li>
- <li><code>Proxy-Authorization</code></li>
- <li><code>TE</code></li>
- <li><code>Trailers</code></li>
- <li><code>Transfer-Encoding</code></li>
- <li><code>Upgrade</code></li>
- </ul>
-
- <p><code class="directive">CacheIgnoreHeaders</code> specifies additional HTTP
- headers that should not to be stored in the cache. For example, it makes
- sense in some cases to prevent cookies from being stored in the cache.</p>
-
- <p><code class="directive">CacheIgnoreHeaders</code> takes a space separated list
- of HTTP headers that should not be stored in the cache. If only hop-by-hop
- headers not should be stored in the cache (the RFC 2616 compliant
- behaviour), <code class="directive">CacheIgnoreHeaders</code> can be set to
- <code>None</code>.</p>
-
- <div class="example"><h3>Example 1</h3><p><code>
- CacheIgnoreHeaders Set-Cookie
- </code></p></div>
-
- <div class="example"><h3>Example 2</h3><p><code>
- CacheIgnoreHeaders None
- </code></p></div>
-
- <div class="warning"><h3>Warning:</h3>
- If headers like <code>Expires</code> which are needed for proper cache
- management are not stored due to a
- <code class="directive">CacheIgnoreHeaders</code> setting, the behaviour of
- mod_cache is undefined.
- </div>
-
-</div>
-<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
-<div class="directive-section"><h2><a name="CacheIgnoreNoLastMod" id="CacheIgnoreNoLastMod">CacheIgnoreNoLastMod</a> <a name="cacheignorenolastmod" id="cacheignorenolastmod">Directive</a></h2>
-<table class="directive">
-<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Ignore the fact that a response has no Last Modified
-header.</td></tr>
-<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>CacheIgnoreNoLastMod On|Off</code></td></tr>
-<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>CacheIgnoreNoLastMod Off</code></td></tr>
-<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host</td></tr>
-<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Experimental</td></tr>
-<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr>
-</table>
- <p>Ordinarily, documents without a last-modified date are not cached.
- Under some circumstances the last-modified date is removed (during
- <code class="module"><a href="../mod/mod_include.html">mod_include</a></code> processing for example) or not provided
- at all. The <code class="directive">CacheIgnoreNoLastMod</code> directive
- provides a way to specify that documents without last-modified dates
- should be considered for caching, even without a last-modified date.
- If neither a last-modified date nor an expiry date are provided with
- the document then the value specified by the
- <code class="directive">CacheDefaultExpire</code> directive will be used to
- generate an expiration date.</p>
-
- <div class="example"><p><code>
- CacheIgnoreNoLastMod On
- </code></p></div>
-
-</div>
-<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
-<div class="directive-section"><h2><a name="CacheLastModifiedFactor" id="CacheLastModifiedFactor">CacheLastModifiedFactor</a> <a name="cachelastmodifiedfactor" id="cachelastmodifiedfactor">Directive</a></h2>
-<table class="directive">
-<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>The factor used to compute an expiry date based on the
-LastModified date.</td></tr>
-<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>CacheLastModifiedFactor <var>float</var></code></td></tr>
-<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>CacheLastModifiedFactor 0.1</code></td></tr>
-<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host</td></tr>
-<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Experimental</td></tr>
-<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr>
-</table>
- <p>In the event that a document does not provide an expiry date but does
- provide a last-modified date, an expiry date can be calculated based on
- the time since the document was last modified. The
- <code class="directive">CacheLastModifiedFactor</code> directive specifies a
- <var>factor</var> to be used in the generation of this expiry date
- according to the following formula:
-
- <code>expiry-period = time-since-last-modified-date * <var>factor</var>
- expiry-date = current-date + expiry-period</code>
-
- For example, if the document was last modified 10 hours ago, and
- <var>factor</var> is 0.1 then the expiry-period will be set to
- 10*0.1 = 1 hour. If the current time was 3:00pm then the computed
- expiry-date would be 3:00pm + 1hour = 4:00pm.
-
- If the expiry-period would be longer than that set by
- <code class="directive">CacheMaxExpire</code>, then the latter takes
- precedence.</p>
-
- <div class="example"><p><code>
- CacheLastModifiedFactor 0.5
- </code></p></div>
-
-</div>
-<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
-<div class="directive-section"><h2><a name="CacheMaxExpire" id="CacheMaxExpire">CacheMaxExpire</a> <a name="cachemaxexpire" id="cachemaxexpire">Directive</a></h2>
-<table class="directive">
-<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>The maximum time in seconds to cache a document</td></tr>
-<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>CacheMaxExpire <var>seconds</var></code></td></tr>
-<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>CacheMaxExpire 86400 (one day)</code></td></tr>
-<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host</td></tr>
-<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Experimental</td></tr>
-<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_cache</td></tr>
-</table>
- <p>The <code class="directive">CacheMaxExpire</code> directive specifies the maximum number of
- seconds for which cachable HTTP documents will be retained without checking the origin
- server. Thus, documents will be out of date at most this number of seconds. This maximum
- value is enforced even if an expiry date was supplied with the document.</p>
-
- <div class="example"><p><code>
- CacheMaxExpire 604800
- </code></p></div>
-
-</div>
-</div>
-<div class="bottomlang">
-<p><span>Available Languages: </span><a href="../en/mod/mod_cache.html" title="English"> en </a> |
-<a href="../ko/mod/mod_cache.html" hreflang="ko" rel="alternate" title="Korean"> ko </a></p>
-</div><div id="footer">
-<p class="apache">Copyright 2009 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/directives.html">Directives</a> | <a href="../faq/">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p></div>
-</body></html>
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Code Review / bottlenecks.git / blobdiff