Dag task of fusing security and usability in cloud environment

Dag task of fusing security and usability in cloud environment

Liu Yatiu Shaohongrun Jing Weipeng

In heterogeneous and complex cloud environment, task scheduling should ensure the security and availability of resources. Therefore, a DAG task scheduling strategy is proposed, which integrates security and usability. This paper improves the subjective logic trust model, calculates the resource reputation as the important basis of scheduling, quantifies the availability deviation of tree cloud resource and dag task, and gives the scheduling function and design greedy scheduling algorithm (ISAG). The experimental results show that the ISAG algorithm can still satisfy the user's requirement in the environment of low resource security and availability, and has higher success rate of task execution compared with table scheduling algorithm DLs and Availability priority scheduling algorithm AFSA.

Dag task of fusing security and usability in cloud environment