Enabling Piped Logs for Web Server in plesk

If you are going to host more than 300 domains or web sites on your server, you should switch on support for piped logs in the Apache Web Server.

To enable piped logs:

Issue the command mysql -uadmin -p`cat /etc/psa/.psa.shadow` -D psa -e “replace into misc (param,val) values (’apache_pipelog’, ‘true’);”
Rebuild Apache configuration by issuing the command /usr/local/psa/admin/sbin/websrvmng -a -v