检索结果-内蒙古大学图书馆

An adaptive programming model for fault-tolerant distributed computing

IEEE TRANSACTIONS ON DEPENDABLE AND SECURE COMPUTING 2007年第1期4卷 18-31页

作者： Gorender, Sergio Macedo, Raimundo Jose de Araujo Raynal, Michel Univ Fed Bahia Dept Comp Sci Distributed Syst Lab BR-40170110 Salvador BA Brazil Univ Rennes 1 IRISA F-35042 Rennes France

The capability of dynamically adapting to distinct runtime conditions is an important issue when designing distributed systems where negotiated quality of service (QoS) cannot always be delivered between processes. Providing fault tolerance for such dynamic environments is a challenging task. Considering such a context, this paper proposes an adaptive programming model for fault-tolerant distributed computing, which provides upper-layer applications with process state information according to the current system synchrony ( or QoS). The underlying system model is hybrid, composed by a synchronous part ( where there are time bounds on processing speed and message delay) and an asynchronous part ( where there is no time bound). However, such a composition can vary over time, and, in particular, the system may become totally asynchronous ( e. g., when the underlying system QoS degrade) or totally synchronous. Moreover, processes are not required to share the same view of the system synchrony at a given time. To illustrate what can be done in this programming model and how to use it, the consensus problem is taken as a benchmark problem. This paper also presents an implementation of the model that relies on a negotiated quality of service ( QoS) for communication channels.

关键词： adaptability asynchronous/synchronous distributed system consensus distributed computing model fault tolerance quality of service

来源：评论

学校读者我要写书评

暂无评论

A hybrid and adaptive model for fault-tolerant distributed computing

A hybrid and adaptive model for fault-tolerant distributed c...

引用

International Conference on Dependable systems and Networks

作者： Gorender, S Macêdo, R Raynal, M Univ Fed Bahia Distributed Syst Lab Dept Comp Sci BR-40170110 Salvador BA Brazil

ISBN: (纸本)0769522823

The capability of dynamically adapting to distinct run-time conditions is an important issue when designing distributed systems where negotiated quality of service (QoS) cannot always be delivered between processes., Providing fault-tolerance for such dynamic environments is a challenging task. Considering such a context, this, paper proposes an adaptive model for fault-tolerant distributed computing. This model encompasses both the synchronous model (where there are time bounds on processing speed and message delay) and the asynchronous model (where there is no time bound). To illustrate what can be done in this model and how to use it, the consensus problem is taken as a benchmark problem. An implementation of the model is also described This implementation relies on a negotiated quality of service (QoS) for channels, that can be timely or untimely. Moreover, the QoS of a channel can be lost during the execution (i.e., dynamically modified from timely to untimely), thereby adding uncertainty into the system.

关键词： adaptability asynchronous/synchronous distributed system consensus distributed computing model fault tolerance quality of service

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：