CODEWITHSUNDEEP
ruby-on-railsruby-on-rails-4herokuerror-handlingnewrelic
am-rails
am-rails

Reputation: 1473

How do I stop Routing Errors errors from causing all sorts of warning?

My Rails 4 app on Heroku (currently on unicorn) doesn't have too many errors usually but it gets tons of bad URLs. Whenever a bad URL is entered, the user sees my 404 page and an ActionController::RoutingError is raised in Rails. This gets reported to Rollbar and NewRelic as errors, and they raise the alarms. I'm constantly getting alerts from NewRelic about all these "errors". How do I prevent a routing error from being reported as an error?

(I tried changing a line in newrelic.yml to ignore_errors: ActionController::RoutingError but it didn't help.)

Upvotes: 2

Views: 1858

Answers (3)

thisismydesign
thisismydesign

Reputation: 25142

Even though Rollbar recommends handling ActionController::RoutingError via a match '*unmatched' route, this still won't get rid of the internal Rails warning that ends up in Rollbar.

To suppress the warning you can add this to your Rollbar config: /config/rollbar.rb

Rollbar.configure do |config|
  # ...

  config.exception_level_filters['ActionController::RoutingError'] = 'ignore'
end

Another option is to add a middleware to constrain requests before Rails handles them.

Upvotes: 0

Diane Kaplan
Diane Kaplan

Reputation: 1708

Since the other answer takes care of New Relic, the solution in Rollbar is to add the following line into config/initializers/rollbar.rb (see comments in that file for more info): 

config.exception_level_filters.merge!('ActionController::RoutingError' => 'ignore')

Upvotes: 8

Wyatt Lindsey
Wyatt Lindsey

Reputation: 351

If you're using Server Side Config (determine this on the app's Settings page in New Relic), be sure that ActionController::RoutingError is included in the Ignore these errors field.

You might also try setting an environment variable on Heroku to ignore errors like this. For example, NEW_RELIC_ERROR_COLLECTOR_IGNORE_ERRORS="ActiveRecord::RecordNotFound, ActionController::RoutingError"

Upvotes: 1

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