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Temporal QOS Management in Scientific Cloud Workflow Systems by Yun Yang, Jinjun Chen, Xiao Liu

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7

Temporal Checkpoint Selection and Temporal Verification

After temporal constraints are assigned at build time, the temporal consistency states of workflow execution are to be monitored at run-time. As the first step in the temporal consistency monitoring component, temporal checkpoint selection is to select the activity points where temporal verification is required to be conducted to detect temporal violations. Therefore, the overall time overheads and monetary cost for delivering high temporal QoS are highly related to the number of selected checkpoints along scientific cloud workflow execution. After checkpoint selection, as the second step in the temporal consistency monitoring component, temporal verification is to verify the current temporal ...

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