FINDING AND FIXING A FLAW IN THE COPAR SYSTEM

机译：在COPAR系统中查找和修复漏洞

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COPAR (Combining Optimism and Pessimism in AccessingrnReplicas) is a distributed transaction system that managesrnupdates for widely-scattered nodes containing replicasrnof a database of resource counts. The distinguishingrnfeature is that the nodes of the system are connected byrna high-latency, low-bandwidth, or congested network. Anrnexample is the distribution of relief supplies in a large-scalerndisaster situation.rnTo implement responses to allocation and deallocationrnrequests at a particular node in a timely manner, therndatabase of available resources is replicated at each node.rnThis article describes the system architecture, a flaw in thernsystem’s software uncovered during ongoing research, andrnhow the flaw was fixed. Also provided is a comparison ofrnthe post-fix performance of the system with the original.

机译：COPAR（AccessingrnReplicas中的乐观主义与悲观主义的结合）是一种分布式事务处理系统，用于管理广泛分散的节点的更新，这些节点包含副本数据库资源计数数据库。区别特征是系统的节点通过高延迟，低带宽或拥塞网络连接。一个例子是在大规模灾难情况下分发救援物资。为了及时对特定节点的分配和释放请求做出响应，在每个节点上复制了可用资源的数据库。本文介绍了系统架构，这是一个缺陷。正在进行的研究中发现了Thersystem的软件，并修复了该缺陷。还提供了系统与原始系统在修复后性能的比较。

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来源
《Proceedings of the IASTED international conferences on informatics 2010》|2010年|p.a1-a6|共6页
会议地点 Marina del Rey(US);Marina del Rey(US);Marina del Rey(US);Marina del Rey(US);Marina del Rey(US)
作者
Stephen J. Hartley; Joel M. Crichlow;
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作者单位

Computer Science Department Rowan University Glassboro, NJ 08028 hartley@elvis.rowan.edu;

Computer Science Department Rowan University Glassboro, NJ 08028 crichlow@rowan.edu;

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会议组织
原文格式 PDF
正文语种 eng
中图分类信息处理技术;计算技术、计算机技术;
关键词
transaction processing; replica management; availability;

机译：事务处理;;副本管理;;可用性;

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FINDING AND FIXING A FLAW IN THE COPAR SYSTEM

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