凌云体系结构及关键技术研究  

Architecture and Key Technologies of LingCloud

作　　者：鲁小亿[1,2] 林健[1,2] 查礼[1] 

机构地区：[1]中国科学院计算技术研究所北京100190 [2]中国科学院研究生院北京100049

出　　处：《计算机研究与发展》2011年第7期1111-1122,共12页Journal of Computer Research and Development

基　　金：国家“九七三”重点基础研究发展计划基金项目(2011CB302502,2011CB302803);国家“八六三”高技术研究发展计划基金项目(2009AA01A130,2009AA01A131)

摘　　要：云计算系统的基本模型、体系结构、关键技术与系统实现是当前学术界、IT企业界共同关注的热点问题.通过分析现存的2种云计算系统特征,包括垂直型和混合型云计算系统,发现构建生产性云计算系统过程中的3个重要且富有挑战性的问题:异构应用负载模式的高效支持、多租户的资源租赁和利用一套统一的系统整合海量异构的云资源.针对这些问题,简单介绍了凌云系统的组成与目标,提出了一种基于资产租约模型的云计算系统体系结构,并对资产分区管理、虚拟网络管理、虚拟电器管理、虚拟机群租赁框架、全局云用户管理等关键技术进行了简要分析.目前,凌云系统已经实现,并且已在实际环境中部署和实施.根据评价结果,凌云在统一性、灵活性、安全性、好用性和高效性等非功能性目标上基本都优于另外2套系统:OpenNebula和EnomalyECP.性能测试数据表明,在64个虚拟机同时部署的情况下,凌云的虚拟机平均逻辑部署速度能够达到OpenNebula和VIDA组合的4.1倍.The research on basic model, architecture, key technologies and system implementation is the hot topic of cloud computing in academic community and IT industry. By analyzing the characteristics of two existed types of cloud computing systems, including vertical cloud system and hybrid cloud system, three important and challenging issues of building a production cloud computing system are observed, which are efficiently supporting of heterogeneous application load modes, multitenant resource leasing, and adopting a uniform system to consolidate massive cloud resources. Upon these problems, this paper introduces the construction and goals of LingCloud, presents an assetleasing model based architecture of LingCloud, and analyses the key technologies of LingCloud, involving asset partition management, virtual network management, virtual appliance management, virtual cluster leasing framework, and global user management in cloud. At present, the LingCloud system has been implemented and deployed in the real-world environments. According to the evaluation, LingCloud is better than other related systems of OpenNebula and Enomaly ECP in the aspects of uniformity, flexibility, security, usability, and efficiency. The performance result shows that the logic deployment speed in LingCloud is 4.1 times of that in the OpenNebula and VIDA hybrid system in the case of 64 virtual machines deployment concurrently.

关 键 词：云计算 凌云 资产租约模型 分区 虚拟机群 虚拟网络 虚拟电器 

分 类 号：TP316.4[自动化与计算机技术—计算机软件与理论]