HERMES项目回顾:异构事务管理系统的实现

Proceedings RIDE-IMS `93: Third International Workshop on Research Issues in Data Engineering: Interoperability in Multidatabase Systems Pub Date : 1993-04-19 DOI:10.1109/RIDE.1993.281946

Aija Palomäki, A. Wolski, J. Veijalainen, J. Jokiniemi

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引用次数: 2

摘要

HERMES项目的目标是设想在事务管理系统中集成现有异构数据库产品的方法。该项目产生了基于2PC协议的2PC Agent方法。该方法基于参与站点上准备状态的模拟，并保证在站点和事务失败的情况下可串行执行。对本地事务的行为施加了限制:必须维护称为DLRP的(必要)条件，这意味着任何本地事务都不应该更新处于准备状态的子事务读取的数据。

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Retrospection on the HERMES project: implementation of a heterogeneous transaction management system

The goal of the HERMES project was to conceive means to integrate existing heterogeneous database products in a transaction management system. The project produced the 2PC Agent method based on the 2PC protocol. The method is based on simulation of the prepared state at participating sites and it guarantees serializable executions in the presence of site and transaction failures. A restriction on the behaviour of local transactions is imposed: the (necessary) condition called DLRP has to be maintained, meaning no local transaction should update the data read by a subtransaction being in the prepared state.<>

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Proceedings RIDE-IMS `93: Third International Workshop on Research Issues in Data Engineering: Interoperability in Multidatabase Systems

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