Current Proceedings on Technology

Yazarlar: Ciobanu (Iacob) Nicoleta Magdalena

Konular:-

Anahtar Kelimeler:Distributed database,Queries,Dynamic histograms,Algorithm

Özet: For globally expanding organizations, applications generate dynamic workflows with frequent changes in database access models (write, read) at different sites. In those situations, a dynamic process to solve the requests on the site where they were generated is recommended. Statistic data proposed in model will help to determine dynamic histograms of data access. In an unbalanced system of distributed databases, a query process will be influenced by the following parameters: type of query (read, write), locations, the rights of data fragments involved in that request. After this process occurs, the result will be sent to the user. In this paper, a heuristic algorithm for solving queries that implies data fragments from other nodes different that the node on which the query was initiated is proposed. For solving a query the algorithm will determine the node with the best time response. In the process of solving a query, the algorithm will ensure accuracy of the data.

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