abstract_worker.rb

class AbstractWorker
  include Sidekiq::Worker
  include ActiveSupport::Benchmarkable
  include NewRelic::Agent::Instrumentation::ControllerInstrumentation

  def wrap(description, &block)
    begin
      description = "#{self}(#{description})"
      benchmark(description, level: :debug) do
        Mongoid.unit_of_work { yield }
      end
    rescue Exception => e
      Rails.logger.error("Error processing job: #{description}: #{e}\n" + e.backtrace.join("\n"))
      # TODO: Should email notify.
      raise e
    end
  end
  
  def perform
    raise NotImplementedError
  end
  
  add_transaction_tracer :perform, category: :task
  
  def logger
    Rails.logger
  end
end

This has worked for me but seemed to cause problems with thread safety and I stated to get hanging sidekiq workers and thread errors.

Howdy - I work at New Relic, and we've recently released a beta of the newrelic_rpm gem that includes official Sidekiq support, which you can find here:
http://rubygems.org/gems/newrelic_rpm/versions/3.6.0.74.beta

We'd love to hear any feedback you have on it - feel free to contact me directly with feedback.