• 中国计算机学会会刊
  • 中国科技核心期刊
  • 中文核心期刊

J4 ›› 2015, Vol. 37 ›› Issue (09): 1637-1642.

• 论文 • 上一篇    下一篇

基于多级索引的云平台镜像管理系统Milance的设计与实现

李思阳,罗宇   

  1. (国防科学技术大学计算机学院,湖南 长沙 410073)
  • 收稿日期:2014-07-09 修回日期:2014-10-11 出版日期:2015-09-25 发布日期:2015-09-25
  • 基金资助:

    国家自然科学基金资助项目(61370018)

Milance:a cloud image management system
based on multilevel index  

LI Siyang,LUO Yu   

  1. (College of Computer,National University of Defense Technology,Changsha 410073,China)
  • Received:2014-07-09 Revised:2014-10-11 Online:2015-09-25 Published:2015-09-25

摘要:

OpenStack云平台的开源掀起了对于基础设施即服务的云平台的研究热潮,但基于本地存储的镜像管理存在资源利用率不足的问题。为此,开发了新型的多级索引的镜像管理系统Milance替换现有的镜像管理系统,旨在解决现有系统存在的虚拟机实例启动延时大、做快照时间长、镜像池占用空间较大的问题。通过测试,相对于现有的系统,Milance系统在虚拟机启动、虚拟机做快照花费的时间较少。同时,Milance系统也相对于现有系统更加节省镜像空间。

关键词: 云计算, 虚拟机, 镜像共享, 快照

Abstract:

The deployment of OpenStack,an opensource cloud computing platform,has gained popularity for the study of IaaS (Infrastructure as a Service),whereas its resource utilization rate is still low.In order to address this problem,we present a novel image management system,Milance,based on Multilevel Index Glance to replace the existing one which is characterized with a long VM startup latency,a slow snapshop and a large image pool.Experimental results show that in contrast to the existing image management system,Milance not only reduces the latency of VM startups and the cost of snapshots,but also saves more image space.

Key words: cloud computing;virtual machine;image sharing;snapshot