OpenStack边缘计算白皮书中英对照译文

CLOUDEDGECOMPUTING：BeyondtheDataCenter云边缘计算：不止于数据中心原来链接：目录Introduction......................................................................................................................................4概述..................................................................................................................................................4WhatisCloudEdgeComputing?.......................................................................................................7什么是云边缘计算？.......................................................................................................................7ADeeperExplorationofEdgeComputingConsiderations........................................................9边缘计算的深入探索...............................................................................................................9ExploringCharacteristics.................................................................................................................14特征................................................................................................................................................14UseCases.................................................................................................................................16用例.........................................................................................................................................16Scenarios.................................................................................................................................21场景.........................................................................................................................................21Challenges...............................................................................................................................25挑战.........................................................................................................................................25ConclusionandCalltoAction.........................................................................................................30结论和呼吁.....................................................................................................................................30原文贡献者：CONTRIBUTORS：BethCohen,DistinguishedMemberofTechnicalStaff,VerizonGnanavelkandanKathirvel,Director–CloudStrategy&Architecture,AT&TandBoardofDirectors,OpenStackFoundation(OSF)GregoryKatsaros,SeniorSystemArchitect,InmarsatAdrienLebre,Ass.Prof.,IMTAtlantique/Inria/LS2N,FranceAndrewMitry,Sr.DistinguishedEngineer,WalmartLabsChristopherPrice,President,EricssonSoftwareTechnologyPaul-AndréRaymond,SVPTechnology,B.YondAlexReznik,EnterpriseArchitect,HPEandChair,ETSIISGMECPasiVaananen,SystemsArchitect,NFV,RedHatIldikoVansca,EcosystemTechnicalLead,OpenStackFoundation(OSF)IanWells,DistinguishedEngineer,CiscoTECHNICALWRITERBrianE.Whitaker,Founder,ZettabyteContent中文翻译：肖晴绿盟科技中文校审：江国龙绿盟科技刘文懋绿盟科技免责声明本文原文来自于互联网的公共方式，由“绿盟科技研究通讯”出于学习交流的目的进行翻译，而无任何商业利益的考虑和利用，“绿盟科技研究通讯”已经尽可能地对作者和来源进行了通告，但不保证能够穷尽，如您主张相关权利，请及时与“绿盟科技研究通讯”联系。“绿盟科技研究通讯”不对翻译版本的准确性、可靠性作任何保证，也不为由翻译不准确所导致的直接或间接损失承担责任。在使用翻译版本中所包含的技术信息时，用户同意“绿盟科技研究通讯”对可能出现的翻译不完整、或不准确导致的全部或部分损失不承担任何责任。用户亦保证不用做商业用途，也不以任何方式修改本译文，基于上述问题产生侵权行为的，法律责任由用户自负。Introduction概述Foroveradecade,centralizedcloudcomputinghasbeenconsideredastandardITdeliveryplatform.Thoughcloudcomputingisubiquitous,emergingrequirementsandworkloadsarebeginningtoexposeitslimitations.十多年来，集中式的云计算一直被认为是标准的IT交付方式。尽管云计算的普及程度很高，但新兴的需求和工作负载开始暴露出其局限性。Withitsstrongdatacentercentricview,wherecomputeandstorageresourcesarerelativelyplentifulandcentralized,littleornothoughtwasevergiventotheoptimizationofthesupportinghypervisorandmanagementplatformfootprint.由于云计算这种模式会将数据集中存储到数据中心，而数据中心里的计算和存储资源相对丰富和集中，所以几乎没有人考虑对Hypervisor和管理平台进行优化。Fewclouddevelopersseriouslyconsideredtherequirementsneededtosupportresource-constrainednodesreachableonlyoverunreliableorbandwidth-limitednetworkconnections,orthoughtabouttheneedsofapplicationsthatdemandveryhighbandwidth,lowlatency,orwidespreadcomputecapacityacrossmanysites.很少有云计算的开发人员认真考虑，在仅可以通过不可靠或者带宽受限的网络连接情况下，支持受限资源的访问问题；或者很少考虑那些需要高带宽、低延迟或跨多个站点的广泛计算资源的应用程序的需求。Newapplications,services,andworkloadsincreasinglydemandadifferentkindofarchitecture,onethat’sbuilttodirectlysupportadistributedinfrastructure.新的应用、服务和工作负载越来越需要全新的架构进行支撑，这种架构需要能够直接支持分布式的基础设施资源。Newrequirementsforavailabilityandcloudcapabilityatremotesitesareneededtosupportbothtoday’srequirements(retaildataanalytics,networkservices)andtomorrow’sinnovations(smartcities,AR/VR).为了支持当今的需求（零售数据分析、网络服务）和未来的创新应用（智能城市、AR/VR），这些都对远程站点的可用性和云能力提出新的要求。Thematurity,robustness,flexibility,andsimplicityofcloudnowneedstobeextendedacrossmultiplesitesandnetworksinordertocopewithevolvingdemands.因此，云计算需要在其成熟性、健壮性、灵活性和简单性的基础上，实现跨越多个站点和网络的扩展，以应对不断变化的需求。Recentlycompanieshavebeguntoapplythesimplifiedadministrationandflexibilityofcloudcomputingarchitecturestodistributedinfrastructuresthatspanacros