Not just Drupal anymore but here is a good post with Nagios to monitor Drupal.

Events happening in the community are now at Drupal community events on www.drupal.org.
equintanilla's picture

Just read a good post by Marcus from Guidelight Business Solutions on Enhancing Nagios to monitor Drupal using Drush commands. If you are using Drush, Nagios, or Drupal it is a very good techy read!

Elizabeth