首页> 外文会议>Third International Workshop on Grid Computing ― GRID 2002, Nov 18, 2002, Baltimore, MD, USA >A Unified Peer-to-Peer Database Framework for Scalable Service and Resource Discovery
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A Unified Peer-to-Peer Database Framework for Scalable Service and Resource Discovery

机译:用于可扩展服务和资源发现的统一对等数据库框架

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In a large distributed system spanning many administrative domains such as a Data Grid, it is desirable to maintain and query dynamic and timely information about active participants such as services, resources and user communities. However, in such a database system, the set of information tuples in the universe is partitioned over many distributed nodes, for reasons including autonomy, scalability, availability, performance and security. It is not obvious how to enable general-purpose discovery query support and collective collaborative functionality that operate on the distributed system as a whole, rather than on a given part of it. Further, it is not obvious how to allow for search results that are fresh, allowing dynamic content. It appears that a Peer-to-Peer (P2P) database network may be well suited to support dynamic distributed database search, for example for service discovery. In this paper, we devise the Unified Peer-to-Peer Database Framework (UPDF), which allows to express specific applications for arbitrary query languages (e.g. XQuery, SQL) and node topologies, and a wide range of data types, query response modes (e.g. Routed, Direct and Referral Response), neighbor selection policies, pipelining characteristics, timeout and other scope options.
机译:在跨越许多管理域(例如数据网格)的大型分布式系统中,需要维护和查询有关活动参与者(例如服务,资源和用户社区)的动态及时信息。但是,在这样的数据库系统中,由于包括自治性,可伸缩性,可用性,性能和安全性在内的原因,Universe中的信息元组集被划分在许多分布式节点上。如何启用通用发现查询支持和集体协作功能并不是很明显,这些支持和集体协作功能在整个分布式系统上而不是在系统的给定部分上运行。此外,如何允许新鲜的搜索结果,允许动态内容还不是很明显。看来对等(P2P)数据库网络可能非常适合支持动态分布式数据库搜索,例如用于服务发现。在本文中,我们设计了统一的对等数据库框架(UPDF),该框架允许针对任意查询语言(例如XQuery,SQL)和节点拓扑以及各种数据类型,查询响应模式来表达特定的应用程序。 (例如,路由,直接和引荐响应),邻居选择策略,流水线特征,超时和其他范围选项。

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