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Dynamic multi-objective optimized replica placement and migration strategies for SaaS applications in edge cloud

机译:边缘云中SaaS应用程序的动态多目标优化副本放置和迁移策略

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摘要

The multi-replica strategy widely used in the traditional cloud makes storage costly and the replica cannot be accurately located. Due to many heterogeneous nodes in different locations of the edge cloud system, inefficient replica strategy will greatly affect the load balancing of the system. Therefore, the dynamic multi-objective optimized replica placement and migration strategies for SaaS applications in edge cloud are proposed in this paper. The multi-objective optimized replica placement problem is solved according to the fast non-dominated sorting genetic algorithm. In the experiment, the algorithm of replica placement will minimize the effective network utilization, reduce the response time and guarantee the load balancing of data nodes. Moreover, the replica migration model for access hotspots is proposed to obtain the pairing migration relationship from source node to target node. In the experiment, the replica migration algorithm will effectively reduce the migration time, minimize the response time and improve network resource utilization. Besides, the applicability of the proposed replica methods is shown in different scenarios such as the social media, intelligent agriculture, military field and transportation field. (C) 2019 Elsevier B.V. All rights reserved.
机译:传统云中广泛使用的多副本策略使存储成本很高,并且副本无法准确定位。由于边缘云系统的不同位置中存在许多异构节点,低效的复制策略将极大地影响系统的负载平衡。因此,本文针对边缘云中的SaaS应用提出了动态的多目标优化副本放置和迁移策略。根据快速非支配排序遗传算法,解决了多目标优化复制品放置问题。在实验中,副本放置算法将最大程度地降低有效网络利用率,减少响应时间,并保证数据节点的负载平衡。此外,提出了访问热点的副本迁移模型,以获取从源节点到目标节点的配对迁移关系。在实验中,副本迁移算法将有效地减少迁移时间,最小化响应时间并提高网络资源利用率。此外,在社交媒体,智能农业,军事领域和交通运输领域等不同场景中,都表明了所提出的复制方法的适用性。 (C)2019 Elsevier B.V.保留所有权利。

著录项

  • 来源
    《Future generation computer systems》 |2019年第11期|921-937|共17页
  • 作者单位

    Wuhan Univ Technol Dept Comp Sci Wuhan 430063 Hubei Peoples R China|Natl Univ Def Technol Coll Comp Natl Key Lab Parallel & Distributed Proc Changsha Hunan Peoples R China;

    Wuhan Univ Technol Dept Comp Sci Wuhan 430063 Hubei Peoples R China;

    Beijing Wuzi Univ Sch Informat Beijing 101149 Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Edge cloud; SaaS applications; Replica migration;

    机译:边缘云;SaaS应用程序;副本迁移;

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