基于.net外文翻译 大学毕业论文.doc

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1、专业外文翻译题目基于J2EE在分布式环境下的底层结构的自动动态配置的应用系（院）专业班级学生姓名学号指导教师职称滨州学院教务处二〇一〇年三月一日滨州学院本科毕业设计（专业外文翻译）InfrastructureforAutomaticDynamicDeploymentOfJ2EEApplicationinDistributedEnvironmentsAnatolyAkkerman,AlexanderTotok,andVijayKaramcheti1.IntroductionInrecentyears,wehavesee

2、nasignificantgrowthincomponent-basedenterpriseapplicationdevelopment.TheseapplicationsaretypicallydeployedoncompanyIntranetsorontheInternetandarecharacterizedbyhightransactionvolume,largenumbersofusersandwideareaaccess.Traditionallytheyaredeployedinacentralloca

3、tion,usingserverclusteringwithloadbalancing(horizontalpartitioning)tosustainuserload.However,horizontalpartitioninghasbeenshownveryefficientonlyinreducingapplication-relatedoverheadsofuser-perceivedresponsetimes,withouthavingmucheffectonnetwork-inducedlatencies

4、.Verticalpartitioning(e.g.,runningwebtierandbusinesstierinseparateVMs)hasbeenusedforfaultisolationandloadbalancingbutitissometimesimpracticalduetosignificantrun-timeoverheads(evenifonewouldkeepthetiersonafastlocal-areanetwork)relatedtoheavyuseofremoteinvocation

5、s.RecentworkinthecontextofJ2EEcomponentbasedapplicationshasshownviabilityofverticalpartitioninginwide-areanetworkswithoutincurringtheaforementionedoverheads.Thekeyconclusionsfromthatstudycanbesummarizedasfollows:•Usingproperlydesignedapplications,verticaldistri

6、butionacrosswide-areanetworksimprovesuser-perceivedlatencies.•Wide-areaverticallayeringrequiresreplicationofapplicationcomponentsandmaintainingconsistencybetweenreplicas.•Additionalreplicasmaybedeployeddynamicallytohandlenewrequests.•Differentreplicasmay,infact

7、,bedifferentimplementationsofthesamecomponentbasedonusage(read-only,read-write).•Newrequestpathsmayreusecomponentsfrompreviouslydeployedpaths.10滨州学院本科毕业设计（专业外文翻译）ApplyingintelligentmonitoringandAIplanningtechniquesinconjunctionwiththeconclusionsofthatstudy,wese

8、eapotentialfordynamicadaptationinindustry-standardJ2EEcomponent-basedapplicationsinwideareanetworksThroughdeploymentofadditionalapplicationcomponentsdynamicallybasedonactive