mod_disk_cache
mod_disk_cache overview
mod_disk_cache implements a disk-based storage engine for mod_cache.
To enable disk-based storage engine for mod_cache use this minimum configuration:
# in server or virtual host config
CacheRoot c:\inetpub\cache
CacheEnable disk /app1
# or via env
SetEnv cache-enable disk
See CacheEnable directive
Cache cleanup
Warning!
Disk-based cache entries are not deleted after expiration, they are only overwritten by fresh copies.
We recommend to clean the cache manually.
For example, just delete all directories and files in cache root every day (via
scheduler).
See also
mod_disk_cache directives
CacheDirLength
| Description: |
The number of characters in subdirectory names |
| Syntax: |
CacheDirLength length |
| Default: |
CacheDirLength 2 |
| Context: |
server config, virtual host |
| Module: |
mod_disk_cache |
The CacheDirLength directive sets the number of characters for each subdirectory name in the cache hierarchy.
Example:
CacheDirLength 3
CacheDirLevels
| Description: |
The number of levels of subdirectories in the cache. |
| Syntax: |
CacheDirLevels levels |
| Default: |
CacheDirLevels 3 |
| Context: |
server config, virtual host |
| 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.
Example:
CacheDirLevels 5
CacheMaxFileSize
| Description: |
The maximum size (in bytes) of a document to be placed in the cache |
| Syntax: |
CacheMaxFileSize bytes |
| Default: |
CacheMaxFileSize 1048576 (1 Mb) |
| Context: |
server config, virtual host |
| Module: |
mod_disk_cache |
The CacheMaxFileSize directive sets the maximum size, in bytes, for a document to be considered for storage in the cache.
Example:
CacheMaxFileSize 500000
CacheMinFileSize
| 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 |
| Module: |
mod_disk_cache |
The CacheMinFileSize directive sets the minimum size, in bytes, for a document to be considered for storage in the cache.
Example:
CacheMinFileSize 100
CacheRoot
| Description: |
The directory root under which cache files are stored |
| Syntax: |
CacheRoot directory |
| Context: |
server config, virtual host |
| Module: |
mod_disk_cache |
CacheRoot directive defines the name of the directory on the disk to contain cache files.
If mod_disk_cache module has been loaded in the Helicon Ape configuration, 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.
Example:
CacheRoot c:/inetpub/cache
