Impact of Live Migration on Multi-tier Application Performance in Clouds
Impact of Live Migration on Multi-tier Application Performance in Clouds
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DOI：
10.1109/cloud.2012.57
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发表时间：
2012-06
期刊：
影响因子：
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通讯作者：
S. Kikuchi;Y. Matsumoto
中科院分区：
文献类型：
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作者：
S. Kikuchi;Y. Matsumoto
实时迁移技术可以为云数据中心的高效资源管理做出贡献;然而，它们将不可避免地导致所涉及的虚拟机停机。即使停机时间相对较短，对于对响应时间降级敏感的应用程序，其影响也可能很严重。因此，云数据中心提供商应该控制实时迁移操作，以最大限度地减少对云基础设施上运行的应用程序性能的影响。基于这种理解，我们使用XenServer和RUBBoS基准测试在实验设置中研究了实时迁移对2层Web应用程序性能的影响。我们发现，传输控制协议（TCP）的行为可能是导致实时迁移过程中响应时间下降的主要因素。在实验结果的基础上，我们构造了函数来估计实时迁移对应用程序的性能影响。我们还研究了一个案例研究，以演示云计算开发人员如何确定最佳的实时迁移策略，以最大限度地减少应用程序性能下降。
Live migration technologies can contribute to efficient resource management in a cloud datacenter; however, they will inevitably entail downtime for the virtual machine involved. Even if the downtime is relatively short, its effect can be serious for applications sensitive to response time degradations. Therefore, cloud datacenter providers should control live migration operations to minimize the impact on the performance of applications running on the cloud infrastructure. With this understanding, we studied the impact of live migration on the performance of 2-tier web applications in an experimental setup using XenServer and RUBBoS benchmark. We revealed that the behavior of the transmission control protocol (TCP) can be the primary factor responsible for response time degradation during live migration. On the basis of the experimental results, we constructed functions to estimate the performance impact of live migration on the applications. We also examined a case study to demonstrate how cloud computing datacenters can determine the best live migration strategy to minimize application performance degradation.