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OALib Journal期刊
ISSN: 2333-9721
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Query scheme and its optimization for distributed data stream
分布式数据流查询方案及优化

Keywords: distributed data stream,query plan,query optimization,routing policy
分布式数据流
,查询方案,查询优化,路由策略

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Abstract:

Stream database systems are a new type of database system designed to facilitate the execution of queries against continuous streams of data. Many stream-based applications are inherently distributed, Since input stream rates and other system parmeters such as the amount of abailable computing resources can fluctuate significantly, a stream query plan must be able to adapt to these changes. Propose a distributed stream query plan and optimized, use tuple response time and system throughput to evaluate the performance of plan. Compare with other plan by experiments.Proved this plan is optimal.

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