Heroku: Figuring out why your app crashed

My App crashed for the second time in the last 7 days. It displays the Application Error for a period of about 30-60 minutes then comes back online.

This happens while I'm not working on the app (i.e. I'm not checking in any code).

How can I diagnose what went wrong? Both times I found out about the crash about an hour after it came back online, so when I do heroku logs -n 1500 it returns things like GET requests and only goes back 5-10 minutes before all 1500 lines of logs run out.

Is there a way to check why the app crashed? If not, is there a way to make sure if it happens in the future I can catch the error somehow or at least know what happened?

P.S. My app is written in PHP and I'm using the basic free account on Heroku.


I would try installing a free heroku logging add-on like Papertrail or loggly. Either one of them provides additional log storage which should be enough to see what happened to crash your app.

Need Your Help

Which is the 'correct' way to do this (if statement)

java android

I've got plenty of these lying around, and I'm wondering if I'm going to face any trouble - or performance problems.