QoS-Aware Management of Cloud Applications

云计算作为提供按需资源的范例越来越受欢迎。组织开始将云视为一种经济的方式，可以扩展甚至替换现有的IT基础设施。因此，许多组织正在考虑将其应用程序和数据迁移到云环境中，以便利用其灵活性和潜在的成本节约。我们预计，随着技术的成熟，云计算市场的流动性和内部竞争将会增加，这将迫使供应商采用更广泛的机制，如销售价格和激励措施，以吸引消费者。为了利用不断发展的云市场，消费者将需要有效评估提供商产品的技术，以及在提供商之间高效、透明地迁移应用程序的技术。我们建议通过开发一种新的框架和基础设施来提供自主的服务质量（QoS）感知应用程序管理，从而克服与云应用程序管理相关的复杂性和技术挑战。我们将在拟议的工作中使用应用研究方法。对于给定的问题，我们将开发模型和算法来解决问题，实现解决方案的概念验证原型，然后使用原型进行实验以评估其准确性和性能。构建的原型将集成到一个全面的应用程序代理/管理器框架中，以支持qos感知应用程序管理的所有方面。拟议的研究将解决将IT应用程序迁移到云环境中涉及的重要问题。这项工作将对目前由于这些障碍而无法利用云计算的大量中小型公司具有重要意义。在进行拟议的研究中，我们计划在应用管理、云计算和性能评估领域为6名博士生、6名硕士生和5名本科生提供培训。

Cloud computing is growing in popularity as a paradigm for providing on-demand resources. Organizations are beginning to see clouds as an economical way of augmenting, or even replacing, their existing IT infrastructure. As a result, many organizations are considering moving their applications and data to a cloud environment in order to take advantage of its flexibility and potential cost savings. We anticipate that the fluidity of, and the competition within, the cloud computing market will grow as the technology matures, which will force providers to adopt a wider range of mechanisms, such as sale prices and incentives, to attract consumers. To take advantage of the evolving cloud market, consumers will demand technologies to evaluate provider offerings effectively and to migrate applications efficiently and transparently between providers. We propose to overcome the complexity and technical challenges associated with cloud application management by developing a novel framework and infrastructure to provide autonomic Quality-of-Service (QoS) aware application management. We will use an applied research methodology in the proposed work. For a given problem, we will develop models and algorithms to solve the problem, implement a proof-of-concept prototype of the solution and then conduct experiments with the prototype to evaluate its veracity and performance. The prototypes constructed will be integrated into a comprehensive Application Broker/Manager framework to support all aspects of QoS-aware application management. The proposed research will address important problems involved in moving IT applications to cloud environments. The work will have significance to a large number of small to medium companies that are currently unable to take advantage of cloud computing because of these obstacles. In conducting the proposed research we plan to provide training for six Ph.D. students, six M.Sc. students and five undergraduate students in the areas of application management, cloud computing and performance evaluation.