Apache HTTP Server Version 2.2
Apache HTTP Server Version 2.2
This document refers to the 2.2 version of Apache httpd, which is no longer maintained. The active release is documented here. If you have not already upgraded, please follow this link for more information.
You may follow this link to go to the current version of this document.
| Description: | Content cache storage manager keyed to URIs |
|---|---|
| Status: | Extension |
| Module Identifier: | disk_cache_module |
| Source File: | mod_disk_cache.c |
mod_disk_cache implements a disk based storage
manager. It is primarily of use in conjunction with
mod_cache.
Content is stored in and retrieved from the cache using URI based keys. Content with access protection is not cached.
htcacheclean can be used to maintain the cache
size at a maximum level.
mod_disk_cache requires the services of
mod_cache.
mod_disk_cache uses the sendfile feature to
serve files from the cache when supported by the platform, and
when enabled with EnableSendfile.
However, per-directory and .htaccess configuration of
EnableSendfile are ignored by
mod_disk_cache as the corresponding settings are not
available to the module when a request is being served from the
cache.
| Description: | The number of characters in subdirectory names |
|---|---|
| Syntax: | CacheDirLength length |
| Default: | CacheDirLength 2 |
| Context: | server config, virtual host |
| Status: | Extension |
| Module: | mod_disk_cache |
The CacheDirLength directive sets the number
of characters for each subdirectory name in the cache hierarchy.
The result of CacheDirLevels* CacheDirLength
must not be higher than 20.
CacheDirLength 4
| Description: | The number of levels of subdirectories in the cache. |
|---|---|
| Syntax: | CacheDirLevels levels |
| Default: | CacheDirLevels 3 |
| Context: | server config, virtual host |
| Status: | Extension |
| Module: | mod_disk_cache |
The CacheDirLevels directive sets the number
of subdirectory levels in the cache. Cached data will be saved this
many directory levels below the CacheRoot directory.
The result of CacheDirLevels*
CacheDirLength must
not be higher than 20.
CacheDirLevels 5
| Description: | The maximum size (in bytes) of a document to be placed in the cache |
|---|---|
| Syntax: | CacheMaxFileSize bytes |
| Default: | CacheMaxFileSize 1000000 |
| Context: | server config, virtual host |
| Status: | Extension |
| Module: | mod_disk_cache |
The CacheMaxFileSize directive sets the
maximum size, in bytes, for a document to be considered for storage in
the cache.
CacheMaxFileSize 64000
| Description: | The minimum size (in bytes) of a document to be placed in the cache |
|---|---|
| Syntax: | CacheMinFileSize bytes |
| Default: | CacheMinFileSize 1 |
| Context: | server config, virtual host |
| Status: | Extension |
| Module: | mod_disk_cache |
The CacheMinFileSize directive sets the
minimum size, in bytes, for a document to be considered for storage
in the cache.
CacheMinFileSize 64
| Description: | The directory root under which cache files are stored |
|---|---|
| Syntax: | CacheRoot directory |
| Context: | server config, virtual host |
| Status: | Extension |
| Module: | mod_disk_cache |
The CacheRoot directive defines the name of
the directory on the disk to contain cache files. If the mod_disk_cache module has been loaded or compiled in to the
Apache server, this directive must be defined. Failing to
provide a value for CacheRoot will result in
a configuration file processing error. The CacheDirLevels and CacheDirLength directives define
the structure of the directories under the specified root directory.
CacheRoot c:/cacheroot
