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Full Discussion: How to reallocate the deleted logfile space?
Top Forums Shell Programming and Scripting How to reallocate the deleted logfile space? Post 302930269 by achenle on Thursday 1st of January 2015 12:02:31 PM
Old 01-01-2015
Quote:
Originally Posted by Chubler_XL
Yes, after you have deleted the file there is little you can do to recover the allocated space apart from killing and restarting the process(es) that have the file open.

As RudiC points out you are better off writing zero size to the logfile eg:

Code:
# truncate -s0 /var/log/httpd/access_log

Or

Code:
# :> /var/log/httpd/access_log

As a long-term solution you should consider using the logrotate daemon to keep your logfile sizes down.
And don't be surprised if that doesn't work.

There are ways for applications to write to log files that create problems with that method. One of them is redirecting stderr/stdout by using ">>" shell redirection.

If those methods are used, filesystem-specific features can come into play.

There's a reason why operating systems provide robust, scalable logging facilities. Scalable logging is not something that can be done reliably without serious work.

So if your app is not well-designed, you may be stuck with "kill the app, clean up the log file, restart the app".
 

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LEARN ABOUT DEBIAN

oldlog2new

oldlog2new(8)						      System Manager's Manual						     oldlog2new(8)

NAME

       oldlog2new - Convert an NCSA httpd 1.1 access_log file to CLF access_log

SYNOPSIS

       oldlog2new [ -hez ] [ -f logfile ] [ -s srmfile ]

DESCRIPTION

       Convert an NCSA httpd 1.1 access_log file to CLF access_log

OPTIONS

       Display Options:
	 -h  Help -- just display this message and quit.
	 -e  Display all invalid log entries on STDERR. (default is to ignore
	     them)

       Input Options:
	 -f  Read from the following access_log file instead of the default.
	 -z  Use zcat to uncompress the log file while reading [requires -f].
	 -s  Get the server directives from the following srm.conf file.

SEE ALSO

       crontab(1), httpd(1m), perl(1), wwwstat(1), splitlog(1), monthly(8), oldlog2new(8)

       More info and the latest version of oldlog2new can be obtained from

	    http://www.ics.uci.edu/pub/websoft/wwwstat/
	     ftp://www.ics.uci.edu/pub/websoft/wwwstat/

       If you have any suggestions, bug reports, fixes, or enhancements, please join the <wwwstat-users@ics.uci.edu> mailing list by sending e-
       mail with "subscribe" in the subject of the message to the request address <wwwstat-users-request@ics.uci.edu>.	The list is archived at
       the above address.

								 18 November 2004						     oldlog2new(8)
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