通过协调错误恢复实现并发面向对象软件的容错

Twenty-Fifth International Symposium on Fault-Tolerant Computing. Digest of Papers Pub Date : 1995-06-27 DOI:10.1109/FTCS.1995.466948

Jie Xu, B. Randell, A. Romanovsky, C. M. F. Rubira, R. Stroud, Zhixue Wu

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引用次数: 225

摘要

提出了一种面向对象并发系统中多个交互对象间的协调错误恢复方案。基于大多数并发面向对象语言和系统支持的通用对象并发模型，建立了容错的概念框架。这个框架集成了两个互补的概念——对话和事务。对话(与协作异常处理相关联)用于在并发交互活动之间提供协调的错误恢复，而事务用于在并发访问和可能的故障存在的情况下维护共享资源的一致性。为了防止意外的信息走私，利用了事务的可序列化特性。通过一个案例研究说明了所提出的框架，并讨论了各种语言和实现问题。

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Fault tolerance in concurrent object-oriented software through coordinated error recovery

Presents a scheme for coordinated error recovery between multiple interacting objects in a concurrent object-oriented system. A conceptual framework for fault tolerance is established based on a general object concurrency model that is supported by most concurrent object-oriented languages and systems. This framework integrates two complementary concepts-conversations and transactions. Conversations (associated with cooperative exception handling) are used to provide coordinated error recovery between concurrent interacting activities whilst transactions are used to maintain the consistency of shared resources in the presence of concurrent access and possible failures. The serialisability property of transactions is exploited in order to help prevent unexpected information smuggling. The proposed framework is illustrated by means of a case study, and various linguistic and implementation issues are discussed.<>

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Twenty-Fifth International Symposium on Fault-Tolerant Computing. Digest of Papers

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