Question

我们一直试图在POC应用程序服务实例上跟踪与我们的应用程序有关的一些CPU问题。我们安装了Application Insights以查看是否可以获得更多详细信息，但这只会导致我们的应用程序运行异常。

运行时，我们的应用程序事件日志显示以下错误和堆栈跟踪，我猜测这与为什么在运行此服务时性能如此差的原因有关。

对于如何使它顺利运行有什么想法？

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应用程序：w3wp.exe 框架版本：v4.0.30319 说明：由于未处理的异常，进程已终止。异常信息：System.AccessViolationException 在System.Web.UnsafeNativeMethods.EcbFlushCore（IntPtr，Byte []，Byte []，Int32，Int32，Int32，IntPtr []，Int32 []，Int32，Int32，Int32，Int32，System.Web.Hosting.ISAPIAsyncCompletionCallback）在System.Web.Hosting.ISAPIWorkerRequestInProcForIIS6.FlushCore（Byte []，Byte []，Int32，Int32，Int32，IntPtr []，Int32 []，Int32，Int32，布尔ByRef）在System.Web.Hosting.ISAPIWorkerRequest.FlushCachedResponse（布尔）在System.Web.HttpResponse.Flush（Boolean，Boolean）在System.Web.HttpRuntime.FinishRequest（System.Web.HttpWorkerRequest，System.Web.HttpContext，System.Exception）在System.Web.HttpAsyncResult.Complete（Boolean，System.Object，System.Exception，System.Web.RequestNotificationStatus）在System.Web.HttpApplication + ApplicationStepManager.ResumeSteps（System.Exception）在System.Web.HttpApplication.ResumeStepsWaitCallback（System.Object）在System.Threading.ExecutionContext.RunInternal（System.Threading.ExecutionContext，System.Threading.ContextCallback，System.Object，布尔值）在System.Threading.ExecutionContext.Run（System.Threading.ExecutionContext，System.Threading.ContextCallback，System.Object，布尔值）在System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem（）在System.Threading.ThreadPoolWorkQueue.Dispatch（）

ApplicationInsights.config

<?xml version="1.0" encoding="utf-8"?>
<ApplicationInsights xmlns="http://schemas.microsoft.com/ApplicationInsights/2013/Settings">
  <TelemetryInitializers>
    <Add Type="Microsoft.ApplicationInsights.Web.AzureAppServiceRoleNameFromHostNameHeaderInitializer, Microsoft.AI.Web"/>
    <Add Type="Microsoft.ApplicationInsights.DependencyCollector.HttpDependenciesParsingTelemetryInitializer, Microsoft.AI.DependencyCollector"/>
    <Add Type="Microsoft.ApplicationInsights.WindowsServer.AzureRoleEnvironmentTelemetryInitializer, Microsoft.AI.WindowsServer"/>
    <Add Type="Microsoft.ApplicationInsights.WindowsServer.BuildInfoConfigComponentVersionTelemetryInitializer, Microsoft.AI.WindowsServer"/>
    <Add Type="Microsoft.ApplicationInsights.Web.WebTestTelemetryInitializer, Microsoft.AI.Web"/>
    <Add Type="Microsoft.ApplicationInsights.Web.SyntheticUserAgentTelemetryInitializer, Microsoft.AI.Web">
      <!-- Extended list of bots:
            search|spider|crawl|Bot|Monitor|BrowserMob|BingPreview|PagePeeker|WebThumb|URL2PNG|ZooShot|GomezA|Google SketchUp|Read Later|KTXN|KHTE|Keynote|Pingdom|AlwaysOn|zao|borg|oegp|silk|Xenu|zeal|NING|htdig|lycos|slurp|teoma|voila|yahoo|Sogou|CiBra|Nutch|Java|JNLP|Daumoa|Genieo|ichiro|larbin|pompos|Scrapy|snappy|speedy|vortex|favicon|indexer|Riddler|scooter|scraper|scrubby|WhatWeb|WinHTTP|voyager|archiver|Icarus6j|mogimogi|Netvibes|altavista|charlotte|findlinks|Retreiver|TLSProber|WordPress|wsr-agent|http client|Python-urllib|AppEngine-Google|semanticdiscovery|facebookexternalhit|web/snippet|Google-HTTP-Java-Client-->
      <Filters>search|spider|crawl|Bot|Monitor|AlwaysOn</Filters>
    </Add>
    <Add Type="Microsoft.ApplicationInsights.Web.ClientIpHeaderTelemetryInitializer, Microsoft.AI.Web"/>
    <Add Type="Microsoft.ApplicationInsights.Web.OperationNameTelemetryInitializer, Microsoft.AI.Web"/>
    <Add Type="Microsoft.ApplicationInsights.Web.OperationCorrelationTelemetryInitializer, Microsoft.AI.Web"/>
    <Add Type="Microsoft.ApplicationInsights.Web.UserTelemetryInitializer, Microsoft.AI.Web"/>
    <Add Type="Microsoft.ApplicationInsights.Web.AuthenticatedUserIdTelemetryInitializer, Microsoft.AI.Web"/>
    <Add Type="Microsoft.ApplicationInsights.Web.AccountIdTelemetryInitializer, Microsoft.AI.Web"/>
    <Add Type="Microsoft.ApplicationInsights.Web.SessionTelemetryInitializer, Microsoft.AI.Web"/>
  </TelemetryInitializers>
  
  <InstrumentationKey>98eb36d5-3479-4f85-bba6-8fffbc00b84e</InstrumentationKey>
  <TelemetryModules>
    <Add Type="Microsoft.ApplicationInsights.DependencyCollector.DependencyTrackingTelemetryModule, Microsoft.AI.DependencyCollector">
      <ExcludeComponentCorrelationHttpHeadersOnDomains>
        <!-- 
        Requests to the following hostnames will not be modified by adding correlation headers.         
        Add entries here to exclude additional hostnames.
        NOTE: this configuration will be lost upon NuGet upgrade.
        -->
        <Add>core.windows.net</Add>
        <Add>core.chinacloudapi.cn</Add>
        <Add>core.cloudapi.de</Add>
        <Add>core.usgovcloudapi.net</Add>
      </ExcludeComponentCorrelationHttpHeadersOnDomains>
      <IncludeDiagnosticSourceActivities>
        <Add>Microsoft.Azure.EventHubs</Add>
        <Add>Microsoft.Azure.ServiceBus</Add>
      </IncludeDiagnosticSourceActivities>
    </Add>
    <Add Type="Microsoft.ApplicationInsights.Extensibility.PerfCounterCollector.PerformanceCollectorModule, Microsoft.AI.PerfCounterCollector">
      <!--
      Use the following syntax here to collect additional performance counters:
      
      <Counters>
        <Add PerformanceCounter="\Process(??APP_WIN32_PROC??)\Handle Count" ReportAs="Process handle count" />
        ...
      </Counters>
      
      PerformanceCounter must be either \CategoryName(InstanceName)\CounterName or \CategoryName\CounterName
      
      NOTE: performance counters configuration will be lost upon NuGet upgrade.
      
      The following placeholders are supported as InstanceName:
        ??APP_WIN32_PROC?? - instance name of the application process  for Win32 counters.
        ??APP_W3SVC_PROC?? - instance name of the application IIS worker process for IIS/ASP.NET counters.
        ??APP_CLR_PROC?? - instance name of the application CLR process for .NET counters.
      -->
    </Add>
    <Add Type="Microsoft.ApplicationInsights.Extensibility.PerfCounterCollector.QuickPulse.QuickPulseTelemetryModule, Microsoft.AI.PerfCounterCollector"/>
    <Add Type="Microsoft.ApplicationInsights.WindowsServer.AppServicesHeartbeatTelemetryModule, Microsoft.AI.WindowsServer"/>
    <Add Type="Microsoft.ApplicationInsights.WindowsServer.AzureInstanceMetadataTelemetryModule, Microsoft.AI.WindowsServer">
      <!--
      Remove individual fields collected here by adding them to the ApplicationInsighs.HeartbeatProvider 
      with the following syntax:
      
      <Add Type="Microsoft.ApplicationInsights.Extensibility.Implementation.Tracing.DiagnosticsTelemetryModule, Microsoft.ApplicationInsights">
        <ExcludedHeartbeatProperties>
          <Add>osType</Add>
          <Add>location</Add>
          <Add>name</Add>
          <Add>offer</Add>
          <Add>platformFaultDomain</Add>
          <Add>platformUpdateDomain</Add>
          <Add>publisher</Add>
          <Add>sku</Add>
          <Add>version</Add>
          <Add>vmId</Add>
          <Add>vmSize</Add>
          <Add>subscriptionId</Add>
          <Add>resourceGroupName</Add>
          <Add>placementGroupId</Add>
          <Add>tags</Add>
          <Add>vmScaleSetName</Add>
        </ExcludedHeartbeatProperties>
      </Add>
            
      NOTE: exclusions will be lost upon upgrade.
      -->
    </Add>
    <Add Type="Microsoft.ApplicationInsights.WindowsServer.DeveloperModeWithDebuggerAttachedTelemetryModule, Microsoft.AI.WindowsServer"/>
    <Add Type="Microsoft.ApplicationInsights.WindowsServer.UnhandledExceptionTelemetryModule, Microsoft.AI.WindowsServer"/>
    <Add Type="Microsoft.ApplicationInsights.WindowsServer.UnobservedExceptionTelemetryModule, Microsoft.AI.WindowsServer">
      <!--</Add>
    <Add Type="Microsoft.ApplicationInsights.WindowsServer.FirstChanceExceptionStatisticsTelemetryModule, Microsoft.AI.WindowsServer">-->
    </Add>
    <Add Type="Microsoft.ApplicationInsights.Web.RequestTrackingTelemetryModule, Microsoft.AI.Web">
      <Handlers>
        <!-- 
        Add entries here to filter out additional handlers: 
        
        NOTE: handler configuration will be lost upon NuGet upgrade.
        -->
        <Add>Microsoft.VisualStudio.Web.PageInspector.Runtime.Tracing.RequestDataHttpHandler</Add>
        <Add>System.Web.StaticFileHandler</Add>
        <Add>System.Web.Handlers.AssemblyResourceLoader</Add>
        <Add>System.Web.Optimization.BundleHandler</Add>
        <Add>System.Web.Script.Services.ScriptHandlerFactory</Add>
        <Add>System.Web.Handlers.TraceHandler</Add>
        <Add>System.Web.Services.Discovery.DiscoveryRequestHandler</Add>
        <Add>System.Web.HttpDebugHandler</Add>
      </Handlers>
    </Add>
    <Add Type="Microsoft.ApplicationInsights.Web.ExceptionTrackingTelemetryModule, Microsoft.AI.Web"/>
    <Add Type="Microsoft.ApplicationInsights.Web.AspNetDiagnosticTelemetryModule, Microsoft.AI.Web"/>
  </TelemetryModules>
  <ApplicationIdProvider Type="Microsoft.ApplicationInsights.Extensibility.Implementation.ApplicationId.ApplicationInsightsApplicationIdProvider, Microsoft.ApplicationInsights"/>
  <TelemetrySinks>
    <Add Name="default">
      <TelemetryProcessors>
        <Add Type="Microsoft.ApplicationInsights.Extensibility.PerfCounterCollector.QuickPulse.QuickPulseTelemetryProcessor, Microsoft.AI.PerfCounterCollector"/>
        <Add Type="Microsoft.ApplicationInsights.Extensibility.AutocollectedMetricsExtractor, Microsoft.ApplicationInsights"/>
        <Add Type="Microsoft.ApplicationInsights.WindowsServer.TelemetryChannel.AdaptiveSamplingTelemetryProcessor, Microsoft.AI.ServerTelemetryChannel">
          <MaxTelemetryItemsPerSecond>5</MaxTelemetryItemsPerSecond>
          <ExcludedTypes>Event</ExcludedTypes>
        </Add>
        <Add Type="Microsoft.ApplicationInsights.WindowsServer.TelemetryChannel.AdaptiveSamplingTelemetryProcessor, Microsoft.AI.ServerTelemetryChannel">
          <MaxTelemetryItemsPerSecond>5</MaxTelemetryItemsPerSecond>
          <IncludedTypes>Event</IncludedTypes>
        </Add>
      </TelemetryProcessors>
      <TelemetryChannel Type="Microsoft.ApplicationInsights.WindowsServer.TelemetryChannel.ServerTelemetryChannel, Microsoft.AI.ServerTelemetryChannel"/>
    </Add>
  </TelemetrySinks>
<!-- 
    Learn more about Application Insights configuration with ApplicationInsights.config here: 
    http://go.microsoft.com/fwlink/?LinkID=513840
    
    Note: If not present, please add <InstrumentationKey>Your Key</InstrumentationKey> to the top of this file.
  --></ApplicationInsights>

Web.Config代码段

<httpModules>
  <add name="TelemetryCorrelationHttpModule" type="Microsoft.AspNet.TelemetryCorrelation.TelemetryCorrelationHttpModule, Microsoft.AspNet.TelemetryCorrelation" />
  <add name="ApplicationInsightsWebTracking" type="Microsoft.ApplicationInsights.Web.ApplicationInsightsHttpModule, Microsoft.AI.Web" />
</httpModules>

<system.webServer>
  <modules runAllManagedModulesForAllRequests="true">
    <remove name="TelemetryCorrelationHttpModule" />
    <add name="TelemetryCorrelationHttpModule" type="Microsoft.AspNet.TelemetryCorrelation.TelemetryCorrelationHttpModule, Microsoft.AspNet.TelemetryCorrelation" preCondition="managedHandler" />
    <remove name="ApplicationInsightsWebTracking" />
    <add name="ApplicationInsightsWebTracking" type="Microsoft.ApplicationInsights.Web.ApplicationInsightsHttpModule, Microsoft.AI.Web" preCondition="managedHandler" />
  </modules>
</system.webServer>

<system.diagnostics>
  <trace autoflush="true" indentsize="0">
    <listeners>
      <add name="myAppInsightsListener" type="Microsoft.ApplicationInsights.TraceListener.ApplicationInsightsTraceListener, Microsoft.ApplicationInsights.TraceListener" />
    </listeners>
  </trace>
</system.diagnostics>

Answer 1

如果会导致出现问题，我建议卸载Application Insights。然后使用“诊断并解决问题”链接，如图所示。您可以运行大量的诊断选项来确定根本原因。我最喜欢的是“可用性和性能”和“诊断工具”。希望这能给您足够的跟踪问题的机会。

Azure应用服务-应用程序见解性能

1 个答案: