From owner-freebsd-isp  Mon Dec  6 13:42:44 1999
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Date: Mon, 6 Dec 1999 13:42:37 -0800 (PST)
From: Roger Marquis <marquis@roble.com>
To: freebsd-isp@FreeBSD.ORG
Subject: Re: Rotate httpd logs
In-Reply-To: <3.0.5.32.19991206080611.0356bab0@ccsales.com>
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On Mon, 6 Dec 1999, Randy A. Katz wrote:
> Just trying to get a clue about how I should rotate httpd logs, how
> frequently, and whether to use rotatelogs (included in Apache) or something
> else. If any of you could share your methods I'd appreciate it.

Unlike syslogd Apache httpd keeps the logfile open as long as the
daemon's running.  This eliminates the need to rotate logfiles larger
than a certain size, unless you have a very small log partition.

For most sites you can rotate the logs monthly.  We do that here and
then run reports on the previous month.

Try this in your /etc/periodic/monthly or /etc/crontab:

	/bin/sh -
	# Assume all logs are in the $LOGDIR
	LOGDIR=/var/log
	#
	# rotate OLD logs, keep 4 {month}'s worth in $LOGDIR/OLD
	# (in addition to the compressed archives created previously)
	#
	cd $LOGDIR
	for file in `ls OLD/*messages*.2` ; do
	                cp $file "` echo $file|sed 's/.2$/.3/' `"
	done
	for file in `ls OLD/*messages*.1` ; do
	                cp $file "` echo $file|sed 's/.1$/.2/' `"
	done
	for file in `ls OLD/*messages*.0` ; do
	                cp $file "` echo $file|sed 's/.0$/.1/' `"
	done
	# 
	# archive this {month}'s and # clean up for next {month}
	#
	cd $LOGDIR
	for file in `ls *messages` ; do
		## combine up to 10 previously rotated logs
	        for i in 9 8 7 6 5 4 3 2 1 0 ; do
	                if [ -s ${file}.${i} ]; then
	                        cat ${file}.${i} >> ${file}.tmp
	                fi
	                rm -f ${file}.${i}
	        done 
	        if [ -s ${file} ]; then
	                cat ${file} >> ${file}.tmp
			# null out open logfiles
	                cp /dev/null ${file}
	        fi 
	        if [ -s ${file}.tmp ]; then
			# archive unless empty
	                cp ${file}.tmp OLD/${file}.0
	        fi      
	        rm -f ${file}.tmp        
	        ls -ltgF OLD/${file}.0 ${file}
	done
	chown -R 0.0 /var/log/OLD
	chown -R 0.0 /var/log/*messages*
	chown nobody.nogroup /var/log/http*messages 2>&1 >/dev/null
	chmod 750 /var/log/OLD  
	chmod 640 /var/log/OLD/*

--
Roger Marquis
Roble Systems Consulting
http://www.roble.com/



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