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Data replication in grid localization

Author: JiaoWenYing
Tutor: DengSu
School: People's Liberation Army National Defense University of Science and Technology
Course: Management Science and Engineering
Keywords: Data Grid Copy positioning DILM Improved ring topology Performance Analysis
CLC: TP393
Type: Master's thesis
Year: 2002
Downloads: 37
Quote: 1
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Abstract


Data grid gateway Note on data-intensive grid applications , is committed to the integration and efficient access to data . In the data grid , according to the given logical file identifier of one or more files containing the contents of the physical location of the problem is called the replication data grid positioning . This article describes the data grid replication localization of the status quo, summed up the data grid replication topology types of positioning may propose a new data grid replication positioning mechanism - distributed replication indexing positioning mechanism DILM. DILM based on an improved ring topology , including the following four kinds of techniques: overlay network technology , Bloom Filter compression technology, soft-state protocols and MD5 hash algorithm. This paper describes DILM the various components , with the class C language description of these components work process , and designed DILM prototype system is mainly of the API. This article also DILM positioning mechanism with other replication performance comparison: qualitative analysis showed that , DILM better than other mechanisms with scalability and security ; quantitative analysis showed that , DILM have shorter replication locate physical path. DILM can support wide-area data replication positioning system .

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