处理异构数据库中的故障

R. Alonso, A. Tal
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引用次数: 1

摘要

分布式信息处理场景在过去几年中发生了巨大的变化。虽然个人获得关于广泛主题的信息的压力越来越大,但存放这些信息的数据库存在于数据库管理系统的异构集合中,这些系统驻留在各种网络中,每个网络都在不同组织的控制下,并且dbms之间几乎没有标准化。这种情况激发了最近对异构数据库、联邦数据库或多数据库的各种研究。作者讨论了这种异构环境中的故障问题。他们首先简要叙述了他们知道如何解决集中式和分布式数据库中的一些故障。然后,他们指出了联邦环境的一些显著特征,并说明了这些特征是如何导致可能出现的新型故障的。最后,他们对这些新型故障提出了一些可能的解决方案。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Dealing with failures in heterogeneous databases
The distributed information processing scenario has changed dramatically over the last few years. While there is increased pressure on individuals to obtain information about a wide range of topics, the databases where that information lies exist on a heterogeneous collection of database management systems, residing on a variety of networks, each under the control of a different organization, and with very little standardization among the DBMSs. This situation has motivated much recent research on what are variously called heterogeneous databases, federated databases or multidatabases. The authors address the issue of failures in such heterogeneous environments. They start out by briefly recounting some of the failures that they know how to resolve in both centralized and distributed databases. Then they point out some of the salient features of federated environments and show how those features make possible new kinds of failures. Finally, they present some possible solutions to these new types of failures.<>
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