class Sidekiq::Queue

def each
  initial_size = size
  deleted_size = 0
  page = 0
  page_size = 50
  loop do
    range_start = page * page_size - deleted_size
    range_end = range_start + page_size - 1
    entries = Sidekiq.redis { |conn|
      conn.lrange @rname, range_start, range_end
    }
    break if entries.empty?
    page += 1
    entries.each do |entry|
      yield JobRecord.new(entry, @name)
    end
    deleted_size = initial_size - size
  end
end