htcacheclean
Clean up the disk cache
Synopsis
htcacheclean
[ -D ] [ -v ] [ -t ] [ -r ] [
-n ] -ppath -llimit
htcacheclean
[ -n ] [ -t ] [ -i ]
-dinterval -ppath
-llimit
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examples
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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 a SIGTERM or
SIGINT.
-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). Attach K for
Kbytes or M 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.
summary
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.