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中文摘要：
针对云计算环境中任务调度因缺少综合评估调度策略手段、数据文件访问频率不一而导致的云计算系统效率降低的问题,分析任务调度中云计算系统可用资源和用户提交应用任务的性能指标,并对调度各功能模块明确定义。同时对任务数据文件的副本进行动态管理,提出基于动态副本管理的云计算任务调度体系架构。该任务调度体系能避免因关键数据访问过频导致的单点失效和系统负载不均状况,从而提高云计算系统的稳定性和可靠性。
英文摘要：
Efficiency of cloud computing system is reduced as data file access frequency varies as well as the lack of comprehensive evaluation strategies and methods of task scheduling in cloud computing environment.This paper analyzes the available resources and performance index of tasks submitted by users in cloud computing system while task scheduling and the function modules of task scheduling are clearly defined.At the same time,a cloud computing task scheduling architecture based on dynamic replica management is put forward.The stability and reliability of cloud computing can be improved,which can avoid a single point of failure and uneven load balance.
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