Abstract
본 논문에서는 클라우드 클러스터에서 가상머신(VM: Virtual Machine)의 재배치시간을 단축할 수 있는 VM 재매핑 기법을 제안한다. 제안하는 기법은 입력으로 주어진 VM 맵으로부터 순차적으로 이주해야 하는 VM들을 찾고 그 중 일부 VM들의 목적지를 교환함으로써 VM 재배치시간을 단축한다. 목적지가 교환될 VM은 이주 완료시간시간과 물리머신들의 가용 자원량을 근거로 하여 선정된다. 그리고 목적지 교환은 VM 재배치 시간이 더 이상 단축될 수 없을 때까지 반복된다. 시뮬레이션을 통하여 VM 맵을 제안한 기법으로 재매핑 했을 때 재매핑 전에 비해 VM 재배치 시간이 최대 42.7% 단축되었음을 확인한다. In this paper, we propose a virtual machine(VM) remapping scheme that reduces VM relocation time on a cloud cluster. The proposed scheme finds VMs that should be migrated in sequence from a given VM map, and exchanges destinations of some VMs among them to reduce the VM relocation time. The VMs, the destinations of which will be exchanged, are chosen based on the amount of physical machine's available resources and migration completion time. The exchange of destinations is repeated until the VM relocation time cannot be shortened any further. Through a simulation, we show that the proposed scheme reduces VM relocation time by 42.7% in maximum.
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