How do I log the entire trace back of a Ruby exception using the default Rails logger?

Question

I am working on rails project and I am trying to get exceptions to be logged to the rails log files. I know I can call logger.error $! to get the first line of the

Answer 1

In later versions of Rails, simply uncomment the following line in RAIL_ROOT/config/initializers/backtrace_silencers.rb (or add this file itself if it's not there):

# Rails.backtrace_cleaner.remove_silencers!

This way you get the full backtrace written to the log on an exception. This works for me in v2.3.4.