gistfile1.rb

EventMachine::PeriodicTimer.new(10) do
  @redis.keys("*checks*pattern*") do |keys|
    @redis.get(keys) do |values|
      values.each do |value|
        check = MultiJson.load(value) rescue nil
        next unless check
        if check[:keepalive]
          @redis.get("execution:key:#{check[:name]}") do |exec_time|
            publish_critical if exec_time < Time.now.to_i - check[:keepalive]
          end
        end
      end
    end
  end
end