WebSphere应用服务器性能调优工具介绍剖析课件

WebSphereApplicationServer

PerformanceTuningToolkit

Feb,2012SuiPengFei(suipf@)WebSphereApplicationServer

Whyweusethistoolkit?ApplicationCluster#1HTTPTrafficProxyServerApplicationCluster#2ApplicationCluster#3ObjectiveFunctionsFinderrorassoonasitoccursMonitortheservleterrors,transactionrollback,transactiontimeout,JDBCconnectiontimeout,JCAconnectionerrors,threadhung,failedproxyrequestandotherexceptionsinlogfiles.Findpotentialproblems

Showdetailedstatusofsystemwitheasilyunderstoodchartsandforms

Detecttheabnormalsymptomsaccordingtosome

userdefinedrules

AccelerateperformancetuningprocessTunealltheserversinacentralizedview.Runtuningscriptswithintheworkbench.FacilitateproblemsdeterminationGeneratethreaddumpandheapdumpEnableruntimetraceExtractconnectionpoolcontentsTailSystemOut.log/SystemErr.logDataprocessingandreportProvidegoodreport.Supportbothonlineandofflineanalysis

1)FriendlyandeasilyunderstoodUI2)NoadditionalefforttoinstallorconfigureWhyweusethistoolkit?ApplQuickStart:LaunchthePerformanceTuningToolkitUnzipthezipfileandlaunchthePerfTuningToolkit.exe.Youwillseetheworkbench!QuickStart:LaunchthePerfoQuickStart:ConnecttoyourWASFromtheHostsView,doubleclickthenewcreatedhost,andclick“Ok”innextpromptdialog.QuickStart:ConnecttoyourQuickStart:StartMonitoringDoubleclicktheaddedhostandclick“OK”innextmessageboxtostartalltheserversQuickStart:StartMonitoringQuickStart:MonitorthedashboardThedashboardwillmonitorallthekeystatusofservers(includeApplicationServersandProxyServers)inthelatestmonitoringinterval(themonitorintervalismultipleofthedatacollectionintervalwhichwassetinthepreferencepanel)Thecolorofperformancedatawillturnredifsomeabnormaleventsweredetectedincurrentmonitoringinterval,itonlyrepresentthecurrentstatus.Therewillalsobeawarningmarkinthesecondcolumnaslongasanyerroreveroccursanditwillleaveunlessyouclearit.Sothewarningmarkscanrepresenthistoryabnormalevents.1.Performance2.Errors3.Systemstatus4.Customizedalert(rulebased)QuickStart:MonitorthedashQuickStart:Monitoraserver-1Doubleclickanypanelinthedashboard,youwillgotothemonitorpageofthatserverQuickStart:MonitoraserverQuickStart:Monitoraserver-2Adjustthestatisticsinterval:thisfunctionwillbeusefulwhenthecurvejitterviolentlyQuickStart:MonitoraserverQuickStart:Monitoraserver-3Hiddenthechartthatisuselessforyou,thiswillnotaffectthedatapageQuickStart:MonitoraserverQuickStart:ViewdetaileddataofeachcomponentSwitchtodetaildatapagebyclickingthepointinthemonitorpage,orclickthattabsatthebottomQuickStart:ViewdetaileddaQuickStart:IntervalconceptofperformancemonitoringPayattentiontotheintervalofDashboard,ChartsandtheDataCollections.MonitoringInterval:1).MultipleofDataCollectionInterval.2).Canbeadjustedatanytime3).CanonlybeuptothecurrenttimeAnalysisInterval:1).MultipleofDataCollectionInterval.2).Canbeadjustedatanytime3).TheendtimemaynotbethecurrenttimeDataCollectionInterval:1).Canonlybesetinthepreferencepanel.2).Cannotbeadjustedatruntime.MonitoringIntervalAnalysisIntervalDataCollectionIntervalQuickStart:IntervalconceptSetuptheTopology:1.ApplicationServer:WebSphereApplicationServerversion7.0orlater.2.DataBase:Derby/Db2.3.UsethelatestJmetertoasthestressclient.4.DownloadtheWebsphereApplicationServerPerformanceTuningToolkit.ApplicationServerClusterTestClientProxyServerDmgrDataBaseServer3Server4Server1Server2Installthetestapplicationandstartstress:1.Aseparateapplicationinstallationguidewillbeprovidedforreference2.AJmeterscriptfileandJmeteruserguidewillbeprovidedforreferenceScenariodescription:1.UseamodifiedDaytrader2.0benchmarktosimulateapplicationwithaconnectionleakproblem.2.UsePTTdetecttheconnectionleakproblemDemo:SynchronizationBlockingSetuptheTopology:ApplicatiDemo:CodetotriggertheSynchronizationBlockingproblemStartDemonow!Demo:CodetotriggertheSyncQuickStart:Otheroperations-1Userscangeneratethreaddump,heapdump,getconnectioncontentsandenabletracewhenconnectedtothecell.QuickStart:OtheroperationsQuickStart:Otheroperations-2GUIofconnectioncontentpanel.MoreandmorefunctionswillbeaddedtofacilitatetheperformanceproblemdeterminationQuickStart:OtheroperationsQuickStart:Edittherules-1Datafromallcomponentswillgothroughtheruleengine.SomeruleshasbeendefinedintherulefileTheexistingrules:Iftheusedheapreachesthe85%ofmaximumheapsize,itwillgeneratearuntimealert.Iftheusedthreadpoolreaches90%ofthemaxpoolsize,itwillgenerateathreadpoolalert.IftheaverageCPUusagereaches90%,itwillgeneratearuntimealert.Ifsomeservleterrorsoccur,itwillgenerateaservletalert.IfsomeJDBCconnectiontimeoutoccur,itwillgenerateaconnectionalertIftherearemorethen1000preparedstatementdiscarded,itwillgenerateaconnectionalertIftherearesomethreadwaitingforconnection,itwillgenerateaconnectionalertIfsomeJCAconnectionerroroccur,itwillgenerateaJCAalertIfthereisnoroomfornewsession,itwillgenerateasessionalertIfsomehungthreadsaredeclared,itwillgenerateathreadpoolalertIfsometransactionsrolledback,itwillgenerateatransactionalertIfsometransactionstimeout,itwillgenerateatransactionalertIfsomeproxyrequestfailed,itwillgenerateaproxyalertIfaservletperformancedeclinedetectitwillgenerateaservletalterIfajdbcperformanceproblemdetect,itwillgenerateaconnectionpoolalertQuickStart:Edittherules-QuickStart:Edittherules-2Userscanmodifytheserulesorcreatetheirownrulesintheruleeditor.QuickStart:Edittherules-Demo:CodetotriggertheConnectionLeakproblemStartDemonow!Demo:CodetotriggertheConnQuickStart:Tuningservers-1Fromthe“Tuningparameters”view,youcanretrieveparametersfromtheservers,modifythem,andupdatetheserversQuickStart:Tuningservers-QuickStart:Tuningservers-2Fortheparametersthatnotcontainsinthe“TuningParameters”view,userscanuserscriptstochangethem.QuickStart:Tuningservers-QuickStart:Tuningservers-3Inputtheoptionalparametersifneed.Click“Ok”torunthescript.QuickStart:Tuningservers-QuickStart:GeneratereportGenerateareportforarecordQuickStart:GeneratereportGDemo:PerformanceTuningandReportStartDemonow!Demo:PerformanceTuningandRQuickStart:Changethepreferencesettingsifneed(Optional)Clickthe“Preference”buttontochangethepreferencesifneededQuickStart:ChangetheprefeSummaryFunctionsComponentsPerformanceMonitoringDashboard(keystatusofallservers)Monitorpage(chartofcomponentsofoneserver)Datapage(detailedpageofcomponents)PerformanceTuning

“TuningParameters”view(tunecommonserverparameters)Scriptsview(tuneotherparameters)HealthCheck

Ruleengine(processdata)Ruleeditor(editrules)OperationsDumpagent(generatethreaddumpandheapdump)Traceagent(enabletrace)Connectionpoolagent(extracttheconnectionpoolcontents)Logagent(monitortheSystemOut.logandSystemErr.log)GenerateReport

Reportengine(generate,exportandprintreport)Downloadlink/cattail/#view=collections/5EA359503FD23DDB82653EC9093F23B6SummaryFunctionsComponentsPeMoreworkshop?

Pleaserefertotheworkshopdocumentations……Includescenarios:OutofmemorySynchronizationblockingDeadlockHighCPUusageConnectionleakInternalassetsdownloadlink:/cattail/#view=suipf@/files/35008B402E293DDCADA9094E093F23B6Moreworkshop?

PleasereferBackupBackupWorkshop:connectionleakproblemdetection(Optional)SomeJdbcproblemswillbedetectedonthedashboardaftertriggeringtheconnectionleakproblemWorkshop:connectionleakproWorkshop:connectionleakproblemdetection(Optional)GotomonitorpagetocheckthealertsGotodetaileddatapagetocheckthealertcontentsWorkshop:connectionleakproWorkshop:connectionleakproblemdetection(Optional)GotothejdbcconnectionpooldetailedpagetochecktheconnectionusageinfoWorkshop:connectionleakproWorkshop:connectionleakproblemdetection(Optional)Enablethe“ConnectionLeak”tracetocollecttheconnectionallocationstacktraceWorkshop:connectionleakproWorkshop:connectionlea