Date: Tue, 18 May 1999 19:59:19 -0700 (PDT) From: Roger Marquis <marquis@roble.com> To: freebsd-isp@FreeBSD.ORG Subject: Re: Web Statistics break up program. Message-ID: <Pine.GSO.3.96.990518195705.24618B-100000@roble2.roble.com> In-Reply-To: <19990518172622.C1539@futuresouth.com>
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> > This will create an archived logfile (http.site.May_1999) and erase
> > the original without needing to kill -1 the httpd.
> >
> > #!/bin/sh -
> > LOGDIR=/var/log
> > ARCDIR=/var/log/oldlogs
> > DAY=`date | awk '{ OFS="_" ;print $2,$6}' `
> > for log in $LOGDIR/http* ; do
> > cp $log $ARCDIR/${log}.${DAY}
> > chmod 440 $ARCDIR/${log}.${DAY}
> > cp /dev/null $log
> > done
>
> Egads!!
> That's a pretty vicious race condition there, you'll lose records on busy
> servers.
In theory perhaps, in reality it doesn't. I've never seen this algorithm
fail, even when used on log files that grow by several megabytes per day.
--
Roger Marquis
Roble Systems Consulting
http://www.roble.com/
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