Using cloudlets and multipath TCP for seamless virtual machine migration

使用 cloudlet 和多路径 TCP 实现无缝虚拟机迁移

• 批准号: 478195-2015
• 负责人: Ajila, SamuelAdesoye
• 金额: $ 1.81万
• 依托单位: Carleton University
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=579359
• 关键词: Using; cloudlets; multipath; TCP; seamless

A nearby virtual machine (VM) based cloudlets have been proposed for mobile cloud computing (MCC) to enhance the performance of real-time resource-intensive mobile applications. After a mobile device (MD) discovers a cloudlet in the vicinity, it takes time to set up a virtual machine (VM) inside the cloudlet before data offloading from the MD to the VM starts. The time between discovering the cloudlet and actual offloading of data is considered as a service initiation time. When multiple cloudlets are presented in a nearby geographical location, initiating a service with each cloudlet may be frustrating for cloudlet users when changing location. In order to eliminate the delay caused by the service initiation time after moving away from the source cloudlet, this research is proposing a seamless live VM migration between neighbour cloudlets. A seamless live VM migration is achieved with the prior knowledge of the migrating VM IP address in the destination cloudlet and more importantly with multipath TCP (MPTCP). We will perform a number of experiments to validate the proposed approach using the Linux KVM hypervisor. The experimental results will demonstrate the feasibility of the proposed approach and also show performance improvement. Specifically, there will be zero downtime at the destination cloudlet after the migration is completed.

为了提高实时资源密集型移动应用的性能，提出了一种用于移动云计算(MCC)的基于附近虚拟机(VM)的Cloudlet。在移动设备(MD)发现附近的Cloudlet后，在开始将数据从MD卸载到VM之前，在Cloudlet内设置虚拟机(VM)需要时间。从发现Cloudlet到实际卸载数据之间的时间被认为是服务启动时间。当多个Cloudlet出现在附近的地理位置时，使用每个Cloudlet发起服务可能会让Cloudlet用户在改变位置时感到沮丧。为了消除离开源云组件后服务启动时间所带来的延迟，本研究提出了一种在相邻云组件之间无缝实时迁移虚拟机的方法。在预先知道目标Cloudlet中正在迁移的VM IP地址的情况下，以及更重要的是使用多路径TCP(MPTCP)，可以实现无缝的实时VM迁移。我们将使用Linux KVM管理程序执行一系列实验来验证所提出的方法。实验结果证明了该方法的可行性，同时也显示了性能的提高。具体地说，迁移完成后，目标Cloudlet上的停机时间将为零。