项目名称: 高可用云存储系统中数据复制研究
项目编号: No.61202354
项目类型: 青年科学基金项目
立项/批准年度: 2013
项目学科: 计算机科学学科
项目作者: 付雄
作者单位: 南京邮电大学
项目金额: 24万元
中文摘要: 云计算作为一种新型的网络计算模式已经被普遍认为是信息技术领域的产业变革。云存储作为典型的云计算应用方式,建立面向互联网的信息共享存储环境,为用户提供随时随地的数据存储服务。事实表明,虽然云存储已经取得了很大成就,但是其高可用性仍然是云存储所面临的关键瓶颈,也是云存储潜在用户的忧虑所在。 本课题研究利用数据复制来提高云存储系统的可用性,拟提出一种高可用云存储系统中数据复制方法,主要内容包括:(1)面向高可用云存储系统的数据复制模型研究;(2)高可用云存储系统中数据副本复制策略研究;(3)高可用云存储系统中数据副本一致性维护方法研究;(4)基于Hadoop的高可用云存储系统中数据复制实现与验证。课题先通过研究内容一对数据复制建模,然后通过研究内容二和研究内容三对数据复制中的复制策略,数据一致性维护等关键技术展开研究,最后通过研究内容四在云存储系统中进行实现和验证。
中文关键词: 云计算;云存储;数据复制;副本放置;数据一致性
英文摘要: As a new paradigm of network computing, cloud computing has been generally considered to be the third revolution of IT industry. Cloud storage is a typical application of cloud computing to build the environment for sharing information storage across the Internet, which satisfies people's mobile data demand anywhere and anytime. As a matter of fact, cloud storage has achieved a big success, but its availability remains to be an important bottleneck, which potential customers concern about. This project studies on improving the availability of cloud storage system through data replication, and plans to propose a novel data replication method for high available cloud storage system. The main contents include:(1)study on data replication model for high available cloud storage system; (2)study on replication strategy of data replica for high available cloud storage system; (3)study on maintenance method of data replica consistency for high available cloud storage system; (4)implementation and verification of the data replication in high available cloud storage system based on Hadoop. First, the project builds a model for data replication in the part 1; and then it studies on some key techniques including replication strategies, consistency maintenance in the part 2 and the part 3; finally, it implements a data rep
英文关键词: cloud computing;cloud storage;data replication;replica placement;Data Consistency