Apache HTTP Server Version 2.2
htcacheclean - Clean up the disk cache
htcacheclean
is used to keep the size of
mod_disk_cache
's storage within a certain limit. This
tool can run either manually or in daemon mode. When running in
daemon mode, it sleeps in the background and checks the cache directories
at regular intervals for cached content to be removed. You can stop the daemon
cleanly by sending it a TERM or INT signal.
See also
Synopsis
htcacheclean
[ -D ]
[ -v ]
[ -t ]
[ -r ]
[ -n ]
-ppath
-llimit
htcacheclean
[ -n ]
[ -t ]
[ -i ]
-dinterval
-ppath
-llimit
Options
-dinterval
- Daemonize and repeat cache cleaning every interval minutes.
This option is mutually exclusive with the
-D
,-v
and-r
options. To shutdown the daemon cleanly, just send it aSIGTERM
orSIGINT
. -D
- Do a dry run and don't delete anything. This option is mutually
exclusive with the
-d
option. -v
- Be verbose and print statistics. This option is mutually exclusive
with the
-d
option. -r
- Clean thoroughly. This assumes that the Apache web server is
not running (otherwise you may get garbage in the cache). This option
is mutually exclusive with the
-d
option and implies the-t
option. -n
- Be nice. This causes slower processing in favour of other
processes.
htcacheclean
will sleep from time to time so that (a) the disk IO will be delayed and (b) the kernel can schedule other processes in the meantime. -t
- Delete all empty directories. By default only cache files are removed, however with some configurations the large number of directories created may require attention. If your configuration requires a very large number of directories, to the point that inode or file allocation table exhaustion may become an issue, use of this option is advised.
-ppath
- Specify path as the root directory of the disk cache. This
should be the same value as specified with the
CacheRoot
directive. -llimit
- Specify limit as the total disk cache size limit. The value
is expressed in bytes by default (or attaching
B
to the number). AttachK
for Kbytes orM
for MBytes. -i
- Be intelligent and run only when there was a modification of the disk
cache. This option is only possible together with the
-d
option.
Exit Status
htcacheclean
returns a zero status ("true") if all
operations were successful, 1
otherwise.