Research on autonomous distributed contents delivery system extended contents delivery capacity

随着云计算的普及，提高计算机系统的处理能力成为可能。通过使用云计算系统，可以在局部地区提高处理能力，但在大范围内增加处理能力是困难的。本文提出了一种基于多个云计算系统的广域分布式服务器系统。在该方案中，我们实现了跨多个云计算系统的自动伸缩。增加服务器的时间和地点取决于我们在本研究中提出的云选择策略。本文实现了云选择策略切换的原型系统。为此，可以准备运行虚拟机的环境。在真实数据下，我们对我们的系统进行了评估，显示了我们的系统的有效性。

With the spread of cloud computing, it is possible to improve processing power of computer system. By using cloud computing systems, processing power can be increased in a local area, however, it is difficult to increase processing power in a wide area. In this paper we propose widely distributed server system by using multiple cloud computing systems. In this proposal, we realize auto scaling across multiple cloud computing systems. The timing and the place that servers will be increased are decided by cloud selection policies we proposed in this research. In this paper, we implemented prototype system that can switch cloud selection policies. To do so, it is possible to prepare environments to run virtual machine. Under the real data, we evaluated our system and showed the efficiency of our system.