InterCloud：面向应用服务扩展的云计算环境实用性联盟
InterCloud: Utility-Oriented Federation of Cloud Computing Environments for Scaling of Application Services
摘要：
云计算提供商已经在互联网上的不同地理位置设置了多个数据中心，以便最佳地满足其全球客户的需求。然而，现有系统不支持用于在不同的基于云的数据中心之间动态地协调负载分布以便确定用于托管应用服务的最佳位置以实现合理的QoS水平的机制和策略。此外，云计算提供商不能预测消费其服务的用户的地理分布，因此负载协调必须自动发生，并且服务的分布必须响应于负载的变化而变化。为了解决这个问题，我们提倡创建联邦云计算环境（InterCloud），以促进应用服务的及时、机会和可扩展的供应，在可变的工作负载、资源和网络条件下始终如一地实现QoS目标。总体目标是创建一个支持动态扩展或收缩功能（VM、服务、存储和数据库）的计算环境，以处理服务需求的突然变化。本文介绍了面向实用程序的云计算环境联邦的InterCloud的愿景、挑战和架构元素。建议的InterCloud环境支持跨多个供应商云的应用程序扩展。我们已经验证了我们的方法进行了一系列严格的性能评估研究，使用CloudSim工具包。结果表明，联邦云计算模型具有巨大的潜力，因为它提供了显着的性能增益方面的响应时间和成本节约动态工作负载的情况下。
英文摘要：
Cloud computing providers have setup several data centers at different geographical locations over the Internet in order to optimally serve needs of their customers around the world. However, existing systems do not support mechanisms and policies for dynamically coordinating load distribution among different Cloud-based data centers in order to determine optimal location for hosting application services to achieve reasonable QoS levels. Further, the Cloud computing providers are unable to predict geographic distribution of users consuming their services, hence the load coordination must happen automatically, and distribution of services must change in response to changes in the load. To counter this problem, we advocate creation of federated Cloud computing environment (InterCloud) that facilitates just-in-time, opportunistic, and scalable provisioning of application services, consistently achieving QoS targets under variable workload, resource and network conditions. The overall goal is to create a computing environment that supports dynamic expansion or contraction of capabilities (VMs, services, storage, and database) for handling sudden variations in service demands. This paper presents vision, challenges, and architectural elements of InterCloud for utility-oriented federation of Cloud computing environments. The proposed InterCloud environment supports scaling of applications across multiple vendor clouds. We have validated our approach by conducting a set of rigorous performance evaluation study using the CloudSim toolkit. The results demonstrate that federated Cloud computing model has immense potential as it offers significant performance gains as regards to response time and cost saving under dynamic workload scenarios.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
