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Ping Qi and Longshu Li A fault recovery-based scheduling algorithm for cloud service reliability Security and Communication Networks 8

Version of Record online: 5 MAY 2014 | DOI: 10.1002/sec.1017

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Considered the unreliable and dynamic characteristics of cloud computing, cloud service failures are inevitable, which have an adverse effect on task execution and scheduling. To improve cloud service reliability, we first analyze the fault recovery mechanism, and then, cloud failures considered in this paper are classified into two categories: unrecoverable failures and recoverable failures. By integrating the existing dynamic level scheduling (DLS) algorithm, a novel scheduling algorithm based on fault recovery mechanism named fault recovery-based DLS algorithm is proposed to reduce the failure probability of task assignments. The experimental results confirm that fault recovery mechanism can meet the reliability requirements of cloud computing infrastructures and the proposed algorithm can effectively ensure trustworthy execution of tasks.

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