# File lib/sidekiq/limit_fetch/global/monitor.rb, line 10
    def start!(ttl=HEARTBEAT_TTL, timeout=REFRESH_TIMEOUT)
      Thread.new do
        loop do
          Sidekiq::LimitFetch.redis_retryable do
            add_dynamic_queues
            update_heartbeat ttl
            invalidate_old_processes
          end

          sleep timeout
        end
      end
    end