In addition to some time well-spent in the sun, I have spent a bit of the Memorial Day weekend behind a keyboard.  Pager Duty is where I ended up.

The concept is simple and unoriginal: “Email me when my website is not behaving”.  You enter a URL and an email address, and we will notify you if your site stops returning successful (200) responses.

Pager Duty is a jRuby on Rails app and runs on Google App Engine.  Some of the tech it uses:

• Bumble and BeeU
• ActionMailer-JavaMail
• ActiveSupport-JCache [Soon to be released]
• Recently released cron mechanism

Check it out at http://pagerduty.missingfeature.com/ and let me know if you want to get your site onto the home page.