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Full Discussion: Need script to remove millions of tmp files in /html/cache/ directory
Top Forums Shell Programming and Scripting Need script to remove millions of tmp files in /html/cache/ directory Post 302519561 by methyl on Wednesday 4th of May 2011 09:37:59 AM
Old 05-04-2011
Can we get a more exact sizing of the problem:

How big is the directory file itself?
Code:
ls -lad /html/cache

How long does it take to traverse the tree? And how many files in the tree?
Code:
date ; find /html/cache/ -type f -print | wc -l  ; date


Can you expand a bit about your CentOS VPS?
Are you renting a virtual computer from somewhere on the internet, or is this something you manage yourself?

If this is long-distance, the volume of output from commands must be important, but I can't see how running file deletes can hang the VPS. This is assuming that there is no rollback facility or something which would be crippled by high volumes of file deletes. I must assume that it did not collapse when the files were created - which is surely a similar load.

Assuming /html/cache is a simple directory structure and can be quiesced with no files open I'd be tempted to rename the directory, create a new replacement with identical permissions, and then delete the original at my leisure.
Last edited by methyl; 05-09-2011 at 09:18 AM..
 

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LEARN ABOUT X11R4

fc-cache

FC-CACHE(1)															       FC-CACHE(1)

NAME

       fc-cache - build font information cache files

SYNOPSIS

       fc-cache [ -fsvV? ] [ --force ] [ --system-only ] [ --verbose ] [ --version ] [ --help ] [ dirs ]

DESCRIPTION

       fc-cache  scans the font directories on the system and builds font information cache files for applications using fontconfig for their font
       handling.

       If directory arguments are not given, fc-cache uses each directory in the current font configuration. Each directory is	scanned  for  font
       files  readable by FreeType.  A cache is created which contains properties of each font and the associated filename.  This cache is used to
       speed up application startup when using the fontconfig library.

       Note that fc-cache must be executed once per architecture to generate font information customized for that architecture.  On  a	subsequent
       run, fc-cache will augment the cache information files with the information for the new architecture.

OPTIONS

       This program follows the usual GNU command line syntax, with long options starting with two dashes (`-').  A summary of options is included
       below.

       -f --force
	      Force re-generation of apparently up-to-date cache files, overriding the timestamp checking.

       -s --system-only
	      Only scan system-wide directories, omitting the places located in the user's home directory.

       -v --verbose
	      Display status information while busy.

       -? --help
	      Show summary of options.

       -V --version
	      Show version of the program and exit.

       dirs   A list of directories to scan for fonts.

FILES

       fonts.cache-2
	      These files are generated by fc-cache and contain maps from file names to font properties. They are read by the  fontconfig  library
	      at application startup to locate appropriate fonts.

SEE ALSO

       fc-list (1).

       The fontconfig user's guide, in HTML format: /usr/share/doc/fontconfig/fontconfig-user.html.

AUTHOR

       This manual page was written by Keith Packard <keithp@keithp.com> and Josselin Mouette <joss@debian.org>.

								    05 May 2008 						       FC-CACHE(1)
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