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From "Mick Sheppard" <Mick.Shepp...@cpp.co.uk>
Subject RE: [users@httpd] 0 byte logs
Date Tue, 29 Sep 2009 14:36:45 GMT


> -----Original Message-----
> From: Oliver Marshall [mailto:Oliver.Marshall@g2support.com]
> Sent: 29 September 2009 15:09
> To: users@httpd.apache.org
> Subject: RE: [users@httpd] 0 byte logs
> 
> Hi Mick,
> 
> We are using logrotate to rotate the logs using the following conf
file;
> 
> *********************
> /var/log/apache2/*.log {
>         weekly
>         missingok
>         rotate 12
>         compress
> #       delaycompress
>         notifempty
>         create 640 www-data www-data
>         sharedscripts
>         postrotate
>                 if [ -f "`. /etc/apache2/envvars ; echo
> ${APACHE_PID_FILE:-/var/run/apache2.pid}`" ]; then
>                         /etc/init.d/apache2 reload > /dev/null
>                 fi
>         endscript
> }
> **********************
> 
> The log that was just rolled doesn't continue to grow. It's gzip'd and
> then sits there. A new log is created but then doesnt grow. The
listing
> shows this;
> 
> -rw-r----- 1 www-data www-data       0 2009-09-27 06:38 access.log
> -rw-r----- 1 www-data www-data 1119157 2009-09-27 00:19
access.log.1.gz
> -rw-r----- 1 www-data www-data  167234 2009-09-22 05:25
access.log.2.gz
> 
> Any ideas ?

I'm not familiar with logrotate, except what I've just googled so bare
that in mind.

It looks as though your postrotate script isn't reloading Apache. This
is the cause of your 0 byte logs. Apache is still attempting to write to
the old log file, now compressed so non-existent in its original form.
It's only with the apachectl graceful you are issuing that Apache knows
to use the new log file.

What does the test in the if statement return if you run it outside
logrotate? Its being used to determine whether there is a running Apache
server that needs to be reloaded.

Mick

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