Over the years we've used a number of techniques to get the most out of our Heroku apps without having to fork out a fortune for lots of extra dynos. I've just written up our 6 ways to get more from Heroku which also make your Rails app super snappy for your user.

I recently came across an odd issue where attempts to expire a fragment cache in code run from the console or rake tasks were failing silently. I've written up the cause and one solution to the problem in case anyone else runs into this befuddling issue.