VMware THINAPP 4.6 - Page 129

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Chapter 10 Monitoring and Troubleshooting ThinApp
3 (Optional)Capturelogsforaspecificdurationtotroubleshootanexactissue.
a SelecttheSuspendcheckbox.
bStartthecapturedapplicationandletitruntothepointwheretheerroroccursortheperformance
problemstarts.
cInLogMonitor,deselecttheSuspendcheckboxtoresumetheloggingprocess.
Youcan
checktheapplicationbehaviortoisolatetheissue.
d SelecttheSuspendcheckboxtostoptheloggingprocess.
4 (Optional)SelectafileinthetracefilelisttodeleteandclickDeleteFile.
5 (Optional)ClickKillApptostoparunningprocess.
6 (Optional)ClicktheCompresscheckboxtodecreasethesize
ofatracefile.
Thisoperationslowstheperformanceoftheapplication.
7 (Optional)Generateatracefilereport.
a Selectatracefileinthefilelist,typeatracefilename,orclickBrowsetoselectatracefileonyour
system.
b (Optional)Typeorchangethenameoftheoutputreport.
cClickGenerate
texttracereporttocreateareport.
YoucanviewthefilewithatexteditorthatsupportsUNIX‐stylelinebreaks.
Locating Errors
ThinApploggingprovidesalargeamountofinformation.Thefollowingtipsmighthelpadvancedusers
investigateerrors:
 ReviewthePotential Errors Detectedsectionofthe.txttracefile.
Entriesmightnotindicateerrors.ThinApplistseachWin32APIcallwheretheWindowserrorcode
changed.
 Reviewexceptionsthattheapplicationsgenerate.
Exceptionscanindicateerrors.ExceptiontypesincludeC++and.NET.Thetracefilerecordstheexception
typeandDLLthatgeneratestheexception.Iftheapplication,suchasa.NETorJavaapplication,creates
anexceptionfromself‐generatingcode,thetracefileindicatesan
unknownmodule.
Thefollowingexampleisa.traceentryforanexception.
*** Exception EXCEPTION_ACCESS_VIOLATION on read of 0x10 from unknown_module:0x7c9105f8
Ifyoufindanexception,scantheearlierpartofthetracefileforthesourceoftheexception.Ignorethe
floatingpointexceptionsthatVirtualBasic6applicationsgenerateduringtypicaluse.
 Reviewchildprocesses.
LogMonitorproducesone.tracefileforeachprocess.Ifanapplicationstartsseveralchildprocesses,
determinewhichprocessiscausingtheproblem.Sometimes,suchasincircumstancesinvolving
out‐of‐processCOM,aparentapplicationusesCOMtostartachildprocess,runsafunctionremotely,and

continuestorunfunctions.
 Whenyourunapplicationsfromanetworksharethatgeneratestwoprocesses,ignorethefirstprocess.
ThinAppaddressestheslowperformanceofSymantecantivirusapplicationsbyrestartingprocesses.