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HTCACHECLEAN(8)                  htcacheclean                  HTCACHECLEAN(8)



NAME
       htcacheclean - Clean up the disk cache


SYNOPSIS
       htcacheclean [ -D ] [ -v ] [ -t ] [ -r ] [ -n ] -ppath -llimit


       htcacheclean [ -n ] [ -t ] [ -i ] -dinterval -ppath -llimit



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.



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 attach-
              ing 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 possi-
              ble together with the -d option.


EXIT STATUS
       htcacheclean returns a zero status ("true") if all operations were successful, 1 otherwise.




Apache HTTP Server                2008-05-06                   HTCACHECLEAN(8)