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ID:12400743
大小:7.30 MB
页数:36页
时间:2018-07-16
《googel公司云计算介绍》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、云计算孙逸10721144OutlineWhatisCloudComputing?Google-CradleofCloudComputingGoogleFileSystemMapReduceBigTableSummarySECTION-1WhatisCloudComputing?Google-CradleofCloudComputingGoogleFileSystemMapReduceBigTableSummarySlide4CloudComputingGridComputingUtilityC
2、omputingSaaSComputingCloudComputingSolvinglargeproblemswithParallelcomputingMademainstreamByGlobalAllianceOfferingcomputingresourcesasameteredserviceIntroducedinlate1990sNetwork-basedsubscriptionstoapplicationsGainedmomentumin2001Next-GenerationInter
3、netcomputingNext-GenerationDataCentersCloudComputing-TheComingStormSlide5CloudComputingCloudComputingCharacteristicsCloudComputingisamodelofhowITshouldoperateasabusiness!CloudComputing-TheComingStormAccessibilityAgilityServiceManagementVirtualization
4、FlexibilityCostEfficiencyAutomationUserMeteringSlide6CloudComputingCloudComputingFrameworkCloudFrameworkSystemBusinessProcessasaServiceApplication/SoftwareasaServicePlatformasaServiceInfrastructureasaServiceCloudComputing-TheComingStormSECTION-2Whati
5、sCloudComputing?Google-CradleofCloudComputingGoogleFileSystemMapReduceBigTableSummarySlide8CloudComputingGoogle云计算平台的关键技术CloudComputing-TheComingStormGoogleFileSystemMapReduceBigTableSECTION-3WhatisCloudComputing?Google-CradleofCloudComputingGoogleFi
6、leSystemMapReduceBigTableSummarySlide10CloudComputingCloudComputing-TheComingStorm分布式文件系统GFSGFS如何运作?SECTION-4WhatisCloudComputing?Google-CradleofCloudComputingGoogleFileSystemMapReduceBigTableSummarySlide12CloudComputingCloudComputing-TheComingStorm为
7、什么需要MapReduce?GoogleMapReduce架构设计师JeffreyDeanJefferyDean设计一个新的抽象模型,使我们只要执行的简单计算,而将并行化、容错、数据分布、负载均衡的等杂乱细节放在一个库里,使并行编程时不必关心它们这就是MapReduceSlide13CloudComputingCloudComputing-TheComingStorm一个软件架构,是一种处理海量数据的并行编程模式用于大规模数据集(通常大于1TB)的并行运算MapReduce实现了Map和Redu
8、ce两个功能Map把一个函数应用于集合中的所有成员,然后返回一个基于这个处理的结果集Reduce对结果集进行分类和归纳Map()和Reduce()两个函数可能会并行运行,即使不是在同一的系统的同一时刻MapReduceSlide14CloudComputingCloudComputing-TheComingStormMapReduce示例:单词计数案例:单词记数问题(WordCount)给定一个巨大的文本(如1TB),如何计算单词出现的数目?Slide15CloudComputingCloudC
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