Query routing of federated information systems for fast response time, load balance, availability, and reliability
作者： Inderpal S. Narang , Wen-Syan Li
DOI:
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摘要: Disclosed are embodiments of a system for optimizing query processing in federated information system. The may be used to identify alternative plans simulated environment and calculate cost estimates associated with the plans, based not only on database statistics statements, but also workload latencies specific data source as whole. In addition calculated factor availability reliability. use influence by feeding that allow cost-efficient plan-level load distribution, fragment distribution upon quality service constraints.
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