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Collect and export basic metrics for Rails applications
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Built-in metrics for out-of-the box Rails applications monitoring

if your monitoring system already collects Rails metrics (e.g. NewRelic) then you don't need this gem.


Add this line to your application's Gemfile:

gem 'yabeda-rails'
# Then add monitoring system adapter, e.g.:
# gem 'yabeda-prometheus'

And then execute:

$ bundle

Registering metrics on server process start

Currently, yabeda-rails automatically registers rails metrics when a server is started via rails server or puma -C config/puma.rb. However, other application servers or launching via rackup aren't supported at the moment.

A possible workaround is to detect server process and manually activate yabeda-rails in an initializer:

# config/initializers/yabeda.rb

if your_app_server_process? # Your logic here

You always can add support for your app server to lib/yabeda/rails/railtie.rb. Pull Requests are always welcome!


  • Total web requests received: rails_requests_total
  • Web request duration: rails_request_duration (in seconds)
  • Views rendering duration: rails_view_runtime (in seconds)
  • DB request duration: rails_db_runtime (in seconds)


  • on_controller_action: Allows to collect

    Yabeda::Rails.on_controller_action do |event, labels|
      next unless event.payload[:ext_service_runtime]
      time_in_seconds = event.payload[:ext_service_runtime] / 1000.0
      rails_ext_service_runtime.measure(labels, time_in_seconds)


After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to


Bug reports and pull requests are welcome on GitHub at


The gem is available as open source under the terms of the MIT License.

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