ActiveRecord::ConnectionTimeoutError: could not obtain a database connection within 5.000 seconds (waited 5.000 seconds)

Question

I have a rails app in production that i deployed some changes to the other day. All of a sudden now I get the error ActiveRecord::ConnectionTimeoutError: could not obt

Answer 1

Ultimately this issue still plagued me for another year or so. I finally got a good solution from working with the puma guys.

Upgrade your puma to at least 2.15.x.