ConnectionTimeoutError on Heroku with Postgres

Question

I’m having problems with my application deployed on Heroku. It works fine on local env, but when deployed to Heroku there are often application errors.

The exception

Answer 1

Your DB pool is not the problem. This is a known rails issue. If you are using Rails 4.0.2 then the claim is to use rails master in your Gemfile instead. I am experiencing this issue as well, however I haven't tried this solution yet.