Abstract:

In order to improve the tolerant disaster ability of database service, this paper designs and implements a tolerant disaster system of Oracle database service migration based on Web management. It provides an efficient and accurate failure detection method, which can adapt to network dynamically. It makes the service migration by IP packets redirection in the NDIS driver layer of the user’s machine. Experimental results show that the whole process of failure detection and service migration is fast and transparent to the user, which ensures the service’s continuity.

Key words: service migration, Web management, failure detection

摘要：

为提升数据库服务的容灾抗毁能力，设计并实现一种基于Web管理的Oracle数据库服务漂移容灾系统。系统采用动态适应网络的失效检测方法，在数据库用户主机的NDIS中间层驱动对IP报文进行重定向以实现服务漂移。实验结果证明，该系统能在较短时间内完成整个失效检测和服务漂移，且整个过程对用户透明，从而保证了数据库服务的连续性。

关键词: 服务漂移, Web管理, 失效检测

CLC Number: 

• TP311