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Impact Live Migration on Cloud Performance

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Document pages: 16 pages

Abstract: Hypervisor-based virtualization and containerization offer abstraction capabilities that make applications independent of the cloud s hardware infrastructure for migration. Cloud Elasticity is the ability to adapt to workload changes by provisioning and de-provisioning resources. There are two types of elasticity: horizontal and vertical also live migration. The later plays a big role in cloud elasticity. Virtual machine (VM) and container migration in Dynamic Resource Management (DRM) is a crucial factor in minimizing the cost of datacenter operation. Live migration is a widely used technology for load balancing, fault tolerance and energy saving in Cloud Datacenters. In this paper, we will be converging the two types of virtualization (Container and VMs together) into a hybrid architecture that promotes their complementarities without altering or degrading the quality of service (QoS) of the Cloud infrastructure. For this, we studied the live migration of a monolithic application and precisely the video streaming installed in a container nested in a virtual machine. We examined the contribution of this new type of virtualization in terms of processor utilization, disk usage, total migration time and downtime. The results presented show the advantages of Hybrid virtualization especially in terms of total migration time. Indeed, the absence of a real virtualization layer in the containers leads to a rapid interaction with the operating system processes, which affects the total migration time. To finish we will explore the live migration in the case of multiCloud, we show that live migration allows better management of material and energy resources.

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