计算机工程 ›› 2007, Vol. 33 ›› Issue (20): 83-85.doi: 10.3969/j.issn.1000-3428.2007.20.028

• 软件技术与数据库 • 上一篇    下一篇

数据复制管理中共享缓存数据流的实现

王升平,李 青   

  1. (上海大学计算机工程与科学学院,上海200072)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-10-20 发布日期:2007-10-20

Implementation of Shared Buffer Data Flow in Data Replication Management

WANG Sheng-ping, LI Qing   

  1. (School of Computer Engineering and Science, Shanghai University, Shanghai 200072)
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-10-20 Published:2007-10-20

摘要: 根据应用需求构建了一个网络数据库间的数据复制系统。鉴于OGSA-DAI的数据提供能力的局限性,提出了通过池化OGSA-DA的Session机制来改进OGSA-DAI对外界提供连续的数据流的能力。描述了数据库变更监控以及池化Session等关键技术的实现方法。由一个数据复制的实例说明了复制框架中从数据监控到数据发布的流程。

关键词: 数据复制, 开放网格服务体系结构-数据访问与集成, 数据监控

Abstract: To meet the application requirement, this paper constructs a data replication system among network databases. After analyzing the limitation of providing data in OGSA-DAI, Session mechanism is utilized to improve the capability of providing continuous data in OGSA-DAI. This paper describes the key techniques for implementing data monitoring and session pool. An example is given to demonstrate the execution process of data publishing in the system.

Key words: data replication, open grid service architecture-data access and integration(OGSA-DAI), data monitoring

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