Having just installed apachetop on a community server to get an overview of what sites are busy on the server, I needed to create a single log file to read. Adding a line into each Apache stanza was simple but tiresome, I simply added this line:
CustomLog /data/logs/all.log combined
This gave me a central log file which has all of the sites in it, then I can call the apachetop program with he following format:
apachetop -f /data/logs/all.log
This worked really well with one problem. Th server has a lot of sites running WordPress and the like and apachetop was not differentiating in its output. The solution was to use Apache and create a new logging format. I wanted to shim the ‘ServerName’ into the request so I could see which site’s wp-login.php (for example) page it actually was showing. My new format is:
LogFormat "%h %l %u %t \"%m %v%U%q %H\" %>s %B" central
Its called ‘central’ so I needed to update the apache config accordingly which sed took care of it quickly and painlessly. Now I get output like:
REQS REQ/S KB KB/S URL
304 10.13 879.0 29.3*www.qqqqqqqq.co.uk/wp-content/themes/qqqqqqqq/images/atdefault.jpg
22 0.81 0.0 0.0 www.bbbbbbbb.com/new/wp-content/themes/MagMan/timthumb.php
4 0.13 222.5 7.4 www.bbbbbbbb.co.uk/wp-content/uploads/nivoslider4wp_files/19_s.jpeg
3 0.12 15.5 0.6 www.aaaaaaaa.com/index.html
2 0.07 112.9 3.8 www.bbbbbbbb.com/index.php
1 0.03 0.7 0.0 www.bbbbbbbb.com/new/xmlrpc.php
