協(xié)同標注系統(tǒng)中可擴展動態(tài)容錯機制研究.pdf

1、華中科技大學碩士學位論文協(xié)同標注系統(tǒng)中可擴展動態(tài)容錯機制研究姓名：王玎申請學位級別：碩士專業(yè)：計算機系統(tǒng)結(jié)構(gòu)指導(dǎo)教師：金海20060430華中科技大學碩士學位論文華中科技大學碩士學位論文IIAbstractFthewkingacteristicsofinfmationsocietysuchasinteroperabilitydistributingcollabationcomputersupptedcooperativewkbecome

2、smemeimptantcooperativeplottingsystemisitsapplicationinplottingfield.Accdingtotherequirementofhighavailabilityrealtimehighperfmanceincooperativesystemanextensibledynamicfaulttolerancemechanism(xDFT)isproposedinthepaper.T

3、hemechanismcombinesfaulttolerancesupptingarchitecturefaulttolerancemethod:Firstlyanextensibledynamicfaulttolerancesupptingarchitectureisdefinedthenafaulttolerancealgithmbasedonthefaulttolerancesupptingarchitectureispropo

4、sed.xDFTmechanismdynamicallycansetloadqualityofservernodewithvariabilityofsystemloadtochangeserverredundancy.Servicenodesfaulttolerancenodesareallowedtoscaledynamicallyaccdingtothecurrentsettingstatusofsystem.Itnotonlyim

5、provestheserviceefficiencybutalsoimplementsloadbalancinginameefficientsimplyway.TheCooperativeGeographicInfmationplottingSystem(CoGIS)developedbyClusterGridComputingLab(CGCL)ofHuazhongUniversityofScienceTechnology(HUST)a

6、doptsxDFTmechanism.CoGISnotonlyavoidsthepossibilitythattheserverbecomesbottlenecktheproblemofsinglepointfailurebutalsosavesthesystemresourceavoidsthewasteoftheresourceofredundantnodesprovidescomputersupptedcooperativewke

7、nvironmentareliablehighperfmanceservice.FinallythetestingresultsshowstheextensibledynamicfaulttolerancemechanismxDFTwhichmakesusersacquirecontinuous“nonstop”servicecanpromotereliabilityperfmancefcooperativesystemhasgoodp