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Hadoop云平台下基于LATE改进的推测执行算法
引用本文:卢慧,高弘博,张丰满,王梅,翟嘉伊,肖震.Hadoop云平台下基于LATE改进的推测执行算法[J].成都纺织高等专科学校学报,2016(2):200-206.
作者姓名:卢慧  高弘博  张丰满  王梅  翟嘉伊  肖震
作者单位:1. 成都纺织高等专科学校软件测试中心,四川成都,611731;2. 中国建设银行武汉数据中心,湖北武汉,430070
基金项目:基于云计算的蜀锦蜀绣综合服务平台(2012FZ0081)
摘    要:为解决Hadoop云平台下推测执行算法的不足,基于LATE算法提出一种新的任务进度计算方法,并且采用更细粒度的方式选择执行备份任务的节点。实验结果表明,该算法能够更精准的选定掉队者任务并选择合适的执行节点,缩短作业的执行时间,提高云平台的效率。

关 键 词:Hadoop  云平台  LATE算法  掉队者任务

Improved Speculated Scheduling Algorithm Based on LATE of Hadoop Cloud Platform
LU Hui,GAO Hong-bo,ZHANG Feng-man,WANG Mei,ZHAI Jia-yi,XIAO Zhen.Improved Speculated Scheduling Algorithm Based on LATE of Hadoop Cloud Platform[J].Journal of Chengdu Textile College,2016(2):200-206.
Authors:LU Hui  GAO Hong-bo  ZHANG Feng-man  WANG Mei  ZHAI Jia-yi  XIAO Zhen
Abstract:In order to improve the limitation of speculated scheduling algorithm of Hadoop cloud platform, a new task process algorithm based on LATE was proposed and notes of backup task were selected by adopting more fine-grained way.The experiment results showed that such algorithm could more accurately select the strag-glers and choose proper executing mote, shorten executing time and improve the efficiency of cloud platform.
Keywords:Hadoop  cloud  platform  LATE algorithm  straggler
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