基于OpenStack的虚拟机启动镜像下载加速方法研究  

Research on Acceleration Method of Virtual Machine Startup Image Download Based on OpenStack

作　　者：黄玉书 HUANG Yushu(Wuhan Vocational College of Software And Engineering,Wuhan 430205,Hubei,China)

机构地区：[1]武汉软件工程职业学院,湖北武汉430205

出　　处：《长江信息通信》2023年第10期140-142,共3页Changjiang Information & Communications

摘　　要：OpenStack作为IaaS层资源管理最为重要的开源软件之一,被广大企业用于部署自己的云服务,实现服务器资源高效管理。云计算的特点之一是能够快速交付虚拟机资源,在整个虚拟机资源的交付过程中,镜像下载耗时最长,直接影响资源的交付效率。文章通过分析虚拟机启动阶段镜像下载过程,针对镜像缓存命中率低导致镜像下载耗时较长的问题,提出了本地镜像缓存管理和分布式镜像缓存管理两种方法提高镜像缓存命中率。通过验证,两种方法比原有的镜像下载方法耗时更短,从而降低了虚拟机启动时间,提高了资源交付效率。As one of the most important open source software for IaS layer resource management,OpenStack is used by many enterprises to deploy their own cloud services to achieve efficient management of server resources.One of the characteristics of cloud computing is the rapid delivery of virtual machine resources.In the whole delivery process of virtual machine resources,image download takes the longest time,which directly affects the delivery efficiency of resources.By analyzing the image download process during the virtual machine startup phase,aiming at the problem that the low image cache hit rate leads to the long image download time,this paper proposes two methods to improve the image cache hit rate:local image cache management and distributed image cache management.Through verification,the two methods take less time than the original image download method,which reduces the virtual machine startup time and improves the efficiency of resource delivery.

关 键 词：云计算 OPENSTACK 虚拟机 镜像下载 交付效率 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]