11_2722877_计算机专业毕业设计（论文）文献翻译-基于j2ee在分布式环境下的底层结构的自动动态配置应用

《11_2722877_计算机专业毕业设计（论文）文献翻译-基于j2ee在分布式环境下的底层结构的自动动态配置应用》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、本科毕业设计外文文献及译文文献、资料题目：InfrastructureforAutomaticDynamicDeploymentOfJ2EEApplicationinDistributedEnvironments文献、资料来源：网络文献、资料发表（出版）日期：2007.9院（部）：专业：班级：姓名：学号：指导教师：翻译日期：19外文文献：InfrastructureforAutomaticDynamicDeploymentOfJ2EEApplicationinDistributedEnvironmentsAnatolyAkkerman

2、,AlexanderTotok,andVijayKaramchetiAbstract:inordertoachievesuchdynamicadaptation,weneedaninfrastructureforautomatingJ2EEapplicationdeploymentinsuchanenvironment.ThisneedisquiteevidenttoanyonewhohasevertrieddeployingaJ2EEapplicationevenonasingleapplicationserver,whichisa

3、taskthatinvolvesagreatdealofconfigurationofboththesystemservicesandapplicationcomponents.Keywords:j2ee;component;Distributed;DynamicDeployment;1IntroductionInrecentyears,wehaveseenasignificantgrowthincomponent-basedenterpriseapplicationdevelopment.Theseapplicationsarety

4、picallydeployedoncompanyIntranetsorontheInternetandarecharacterizedbyhightransactionvolume,largenumbersofusersandwideareaaccess.Traditionallytheyaredeployedinacentrallocation,usingserverclusteringwithloadbalancing(horizontalpartitioning)tosustainuserload.However,horizon

5、talpartitioninghasbeenshownveryefficientonlyinreducingapplication-relatedoverheadsofuser-perceivedresponsetimes,withouthavingmucheffectonnetwork-inducedlatencies.Verticalpartitioning(e.g.,runningwebtierandbusinesstierinseparateVMs)hasbeenusedforfaultisolationandloadbala

6、ncingbutitissometimesimpracticalduetosignificantrun-timeoverheads(evenifonewouldkeepthetiersonafastlocal-areanetwork)relatedtoheavyuseofremoteinvocations.Recentwork[14]inthecontextofJ2EEcomponentbasedapplicationshasshownviabilityofverticalpartitioninginwide-areanetworks

7、without19incurringtheaforementionedoverheads.Thekeyconclusionsfromthatstudycanbesummarizedasfollows:•Usingproperlydesignedapplications,verticaldistributionacrosswide-areanetworksimprovesuser-perceivedlatencies.•Wide-areaverticallayeringrequiresreplicationofapplicationco

8、mponentsandmaintainingconsistencybetweenreplicas.•Additionalreplicasmaybedeployeddynamicallytohandlenewrequest