How to prevent logging of certain exception in rails

When there is no database connectivity to the application, I catch the ActiveRecord::RecordNotFound exception in the rescue_action_in_public method and try to render the page which doesn't have any database access.

When this happens, I dont want the Mysql:Error exception to be logged, because for the whole period of DB down, this exception will be logged for each page access.

How can certain exceptions be prevented from bein开发者_如何学Pythong logged?

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Try adding this in your application_controller.rb:

EXCLUDED_EXCEPTIONS = ['ActiveRecord::RecordNotFound']

protected
def log_error(ex)
  super unless EXCLUDED_EXCEPTIONS.include?(ex.class.name)
end

You can add additional exceptions to that array to exclude them as well.