一种基于乐观消息日志的移动计算异步恢复方案

Proceedings 20th IEEE International Conference on Distributed Computing Systems Pub Date : 2000-04-10 DOI:10.1109/ICDCS.2000.840956

T. Park, H. Yeom

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引用次数: 50

摘要

本文提出了一种为移动计算系统提供容错的异步恢复方案。该方案基于乐观消息日志记录，因为只有检查点的方案不适合移动环境，在这种环境中，不可靠的移动主机和脆弱的网络连接可能阻碍任何形式的检查点和恢复协调。此外，为了减少移动主机的开销，移动支持站负责日志记录和依赖项跟踪，移动主机仅保留少量信息用于移动跟踪。因此，移动系统的真正异步恢复可以以很少的开销实现。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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An asynchronous recovery scheme based on optimistic message logging for mobile computing systems

This paper presents an asynchronous recovery scheme to provide fault-tolerance for mobile computing systems. The proposed scheme is based on optimistic message logging, since the checkpointing-only schemes are not suitable for the mobile environment in which unreliable mobile hosts and fragile network connection may hinder any kind of coordination for checkpointing and recovery. Also, in order to reduce the overhead imposed on mobile hosts, mobile support stations take charge of logging and dependency tracking, and mobile hosts maintain only a small amount of information for mobility tracking. As a result, truly asynchronous recovery for mobile systems can be achieved with little overhead.

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Proceedings 20th IEEE International Conference on Distributed Computing Systems

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