Apache is consuming a lot of CPU. How do I find the reason?

[kevang]

I tried to follow the steps in this knowledge base article, but it seems it is not applicable to my Plesk version (12.0). There is no central httpd.conf. I added the configuration lines to /etc/apache2/conf-enabled/security.conf instead. But then going to http://my.server.name/server-status just gives a "Forbidden" error, even if I "Allow from all".

What am I doing wrong?

Is there another way to track down which site/s script/s are generating load?

 

[IgorG]

Check this KB article https://kb.plesk.com/en/125886

 

[kevang]

Nope, that's not it. I don't have too many open files, it's the CPU share on my virtual server that is periodically getting too high.

I want to determine which site/s and script/s are causing this, as described in the knowledge base article I linked to (but which unfortunately is not applicable to my Plesk version).

 

[kevang]

Found it: /etc/apache2/mods-enabled/status.conf needs to be edited to allow access from the desired computer.

I also realized that this shows only the current status, thus doesn't really help with finding out which sites or scripts are causing high CPU usage on a regular basis. Any tips concerning that?