计算机应用 ›› 2005, Vol. 25 ›› Issue (09): 2000-2003.DOI: 10.3724/SP.J.1087.2005.02000

• Web与数据库 • 上一篇    下一篇

分布式并行数据库系统中节点信息的动态管理和维护

陈建英1,2，左朝树1，王莉2   

  1. 1.西南民族大学计算机科学与技术学院； 2.电子科技大学8010研究室
  • 发布日期:2011-04-11 出版日期:2005-09-01

Dynamic management and maintenance of node information in distributed and parallel database system

CHEN Jian-ying1,2,ZUO Chao-shu1,WANG Li2   

  1. 1.School of Computer Science and Technology,Southwest University of Nationality,Chengdu Sichuan 610041,China;2.8010 Division,University of Electronic Science & Technology of China,Chengdu Sichuan 610054,China
  • Online:2011-04-11 Published:2005-09-01

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摘要： 针对分布式并行数据库系统DPSQL中节点状态变化的随机性和不可预测性,提出节点管理和维护的动态解决方案。该方案通过在DPSQL运行过程中对活动节点信息表正确性和一致性的维护实现,保证了各服务器节点间通信的正确性和节点内部各子系统间的默契配合,从而保证了DPSQL的高效服务。

关键词: 分布式并行数据库系统, 活动节点, 动态管理, 高可用性

Abstract: Aiming at the randomicity and unpredictability of the change of node-state in distributed and parallel database system DPSQL,the dynamic scheme was put forward to handle the management and maintenance of the node information.The scheme was implemented on the basis of the correctness and consistency of the information table where every active node-state was written and refreshed on time.This ensured the correspondence of all server nodes and the cooperation of inner subsystem in each node.Consequently,it ensured the effective service of DPSQL.

Key words:  distributed and parallel database system, active node, dynamic management, high availability

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