gistfile1.txt

lib/tasks/act_celluloid.rake
namespace :act_celluloid do
  task :crawl => :environment do

    app_ids = get_items

    supervisor = Celluloid::SupervisionGroup.run!
    supervisor.pool(AppActor, as: :app_actors, size: 10)

    futures = []
    app_ids.each do |app_id|
      futures << Celluloid::Actor[:app_actors].future.get_project(project_id, 'us')
    end

    futures.each do |future|
      puts "future.value = #{future.value}"
    end
  end
end

lib/celloid_actors.rb
class AppActor
  include Celluloid

  def get_project(project_id, region)
    project = Project.find(project_id)
    project.get_data
  end
end

app/models/project.rb
class Project < ActiveRecord::Base

  def get_data
    begin
      data = ProjectParser.new(project_id)
    rescue Exception => e
      puts "In Exception => #{e}"
    end
  end
end

app/models/project_parser.rb
class ProjectParser
  def initialize(project_id)
    # some processing
  end
end