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- W124653734 abstract "A parallel and distributed DBMS which has a scalable performance on a large scale cluster system has been developed. The scalability of a prototype system was confirmed. In this prototype system, a query from a client was re-written appropriately on a coordinator node (C-Node) and it was delivered to several subordinated nodes (S-Nodes). As the SQL was delivered from C-Node to S-Nodes on which an independent DBMS was running, it was extremely difficult to join the tables on different S-Nodes. This paper introduces the 'Plan' distribution method for the query distribution from C-Node to S-Nodes. To implement this method, DBMS functions are separated into C-Node and S-Nodes. The C-Node analyzes a query and generates a plan, and the S-Nodes execute the plan. The plan includes a 'Pre-plan' which assigns the way of data transfer between S-Nodes for the join operation between the nodes. The results of the evaluation of the prototype system using Plan distribution method show a scalable performance as good as the prototype system using SQL distribution method. Keyword Parallel DB, query execution, performance evaluation, optimization, parallel query plan" @default.
- W124653734 created "2016-06-24" @default.
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- W124653734 date "2004-01-01" @default.
- W124653734 modified "2023-09-27" @default.
- W124653734 title "Development of a Parallel and Distributed DBMS, and Evaluation of the Scalability" @default.
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