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New Relic API Rackup
if Rails.env.production?
require 'new_relic/agent/instrumentation/controller_instrumentation'
module NewRelic
module Agent
module Instrumentation
module API
def newrelic_request_headers
@newrelic_request.env
end
def call_with_newrelic(*args)
@newrelic_request = ::Rack::Request.new(args.first)
path = @newrelic_request.path.split('/').delete_if { |p| p.blank? }.join('_')
method = @newrelic_request.request_method.downcase
perform_action_with_newrelic_trace(
:category => :rack,
:path => "#{path}\##{method}",
:request => @newrelic_request) do
result = call_without_newrelic(*args)
# Ignore cascaded calls
MetricFrame.abort_transaction! if result.first == 404
result
end
end
def self.included middleware #:nodoc:
middleware.class_eval do
alias call_without_newrelic call
alias call call_with_newrelic
end
end
include ControllerInstrumentation
def self.extended middleware #:nodoc:
middleware.class_eval do
class << self
alias call_without_newrelic call
alias call call_with_newrelic
end
end
end
end
end
end
end
end
@gugl

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@gugl gugl commented Apr 23, 2012

Thanks for the snippet.

I get a stack level too deep, though.
The only additional information i get is: actionpack (3.2.2) lib/action_dispatch/middleware/reloader.rb:70

I followed your instructions and tried it with newrelic_rpm 3.3.4 and 3.1.2....both end up with stack level too deep.

I use ruby 1.9.3p125 and rails 3.2.2
Any ideas?

@dblock

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@dblock dblock commented Apr 23, 2012

I have this in production with "rpm_contrib", "2.1.8" and "newrelic_rpm", "3.3.3". What's on the stack?

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@gugl gugl commented Apr 23, 2012

Sorry, was my fault.
i used both:
extend NewRelic::Agent::Instrumentation::Rack
AND
extend NewRelic::Agent::Instrumentation::API

Now i only use extend NewRelic::Agent::Instrumentation::API and it works fine.

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@dblock dblock commented Nov 29, 2012

We no longer use this instrumentation and have reworked it. Check out [this blog post](http://artsy.github.com/blog/2012/11/29/measuring-performance-in-grape-apis-with-new-relic] for details.

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@dblock dblock commented Nov 29, 2012

We no longer use this instrumentation and have reworked it. Check out this blog post for details.

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