I\'m running a Rails 3 app with delayed_job. The issue I\'ve come across is that though the app is correctly adding jobs to the queue, they are never being processed.
In the end, the problem turned out to be a bug in Rake 0.9.0. As Rails depends on Rake, running bundle install
after this release of Rake broke my delayed jobs.
The fix is to add gem 'rake', '0.8.7'
to your gemfile.
More details can be found below...
DHH's tweet: http://twitter.com/dhh/status/71966528744071169
Discussion in rails_admin's issue tracker: https://github.com/sferik/rails_admin/issues/428