1 Ocak 2021 Dergi makalesi Açık Erişim

Tos, Uras; Mokadem, Riad; Hameurlain, Abdelkader; Ayav, Tolga

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    <subfield code="a">Achieving query performance in the cloud via a cost-effective data replication strategy</subfield>
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    <subfield code="a">Meeting performance expectations of tenants without sacrificing economic benefit is a tough challenge for cloud providers. We propose a data replication strategy to simultaneously satisfy both the performance and provider profit. Response time of database queries is estimated with the consideration of parallel execution. If the estimated response time is not acceptable, bottlenecks are identified in the query plan. Data replication is realized to resolve the bottlenecks. Data placement is heuristically performed in a way to satisfy query response times at a minimal cost for the provider. We demonstrate the validity of our strategy in a performance evaluation study.</subfield>
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