QoS-Aware Data Replication for Data-Intensive Applications in Cloud Computing Systems

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Provided by: Institute of Electrical & Electronic Engineers
Topic: Cloud
Format: PDF
Cloud computing provides scalable computing and storage resources. More and more data-intensive applications are developed in this computing environment. Different applications have different Quality-of-Service (QoS) requirements. To continuously support the QoS requirement of an application after data corruption, the authors propose two QoS-Aware Data Replication (QADR) algorithms in cloud computing systems. The first algorithm adopts the intuitive idea of High-QoS First-Replication (HQFR) to perform data replication. However, this greedy algorithm cannot minimize the data replication cost and the number of QoS-violated data replicas.
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