那些遇到过的问题

Application Insight Snapshot Debugger：不会从 .NET Full Framework 站点推送快照

har*_*ded 5 asp.net azure azure-application-insights

我创建了一个全新的 Web 应用程序 .NET Full Framework 4.7.2，添加了 Application Insights 快照收集器，但快照没有被推送到服务器。

我什至没有得到Don't see the snapshot? troubleshoot他们在这里提到的链接。

我使用 .NET Core 应用程序测试了我的集成密钥，它按预期工作，我什至得到了%TEMP%\Dumps64他们在该文档中提到的日志。

当我使用 .NET Framework 应用程序时，我在 %TEMP% 文件夹中没有看到任何活动。正在将异常推送到 Application Insights，因此集成密钥有效并且正在捕获异常。

这些是我添加的包：

<package id="Microsoft.ApplicationInsights" version="2.9.1" targetFramework="net472" />
<package id="Microsoft.ApplicationInsights.Agent.Intercept" version="2.4.0" targetFramework="net472" />
<package id="Microsoft.ApplicationInsights.DependencyCollector" version="2.9.1" targetFramework="net472" />
<package id="Microsoft.ApplicationInsights.PerfCounterCollector" version="2.9.1" targetFramework="net472" />
<package id="Microsoft.ApplicationInsights.SnapshotCollector" version="1.3.3" targetFramework="net472" />
<package id="Microsoft.ApplicationInsights.TraceListener" version="2.9.1" targetFramework="net472" />
<package id="Microsoft.ApplicationInsights.Web" version="2.9.1" targetFramework="net472" />
<package id="Microsoft.ApplicationInsights.WindowsServer" version="2.9.1" targetFramework="net472" />
<package id="Microsoft.ApplicationInsights.WindowsServer.TelemetryChannel" version="2.9.1" targetFramework="net472" />
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这就是我的ApplicationInsights.config样子：

<?xml version="1.0" encoding="utf-8"?>
<ApplicationInsights xmlns="http://schemas.microsoft.com/ApplicationInsights/2013/Settings">
  <InstrumentationKey>[MY INTEGRATION KEY IS HERE]</InstrumentationKey>
  <TelemetryInitializers>
    <Add Type="Microsoft.ApplicationInsights.DependencyCollector.HttpDependenciesParsingTelemetryInitializer, Microsoft.AI.DependencyCollector"/>
    <Add Type="Microsoft.ApplicationInsights.WindowsServer.AzureRoleEnvironmentTelemetryInitializer, Microsoft.AI.WindowsServer"/>
    <Add Type="Microsoft.ApplicationInsights.WindowsServer.AzureWebAppRoleEnvironmentTelemetryInitializer, 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>
  <!-- 
    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.
  -->
  <TelemetrySinks>
    <Add Name="default">
      <TelemetryProcessors>
        <Add Type="Microsoft.ApplicationInsights.Extensibility.PerfCounterCollector.QuickPulse.QuickPulseTelemetryProcessor, Microsoft.AI.PerfCounterCollector"/>
        <Add Type="Microsoft.ApplicationInsights.SnapshotCollector.SnapshotCollectorTelemetryProcessor, Microsoft.ApplicationInsights.SnapshotCollector">
          <!-- The default is true, but you can disable Snapshot Debugging by setting it to false -->
          <IsEnabled>true</IsEnabled>
          <!-- Snapshot Debugging is usually disabled in developer mode, but you can enable it by setting this to true. -->
          <!-- DeveloperMode is a property on the active TelemetryChannel. -->
          <IsEnabledInDeveloperMode>true</IsEnabledInDeveloperMode>
        </Add>
        <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>
  <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"/>

<!-- 
    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.
  -->
    <TelemetryProcessors>
        <Add Type="Microsoft.ApplicationInsights.SnapshotCollector.SnapshotCollectorTelemetryProcessor, Microsoft.ApplicationInsights.SnapshotCollector">
            <!-- Snapshot Debugging is usually disabled when debugging in Visual Studio, but you can enable it by setting this to true. -->
            <IsEnabled>true</IsEnabled>
            <!-- Snapshot Debugging is usually disabled in developer mode, but you can enable it by setting this to true. -->
            <!-- DeveloperMode is a property on the active TelemetryChannel. -->
            <IsEnabledInDeveloperMode>true</IsEnabledInDeveloperMode>
            <!-- How many times we need to see an exception before we ask for snapshots. -->
            <ThresholdForSnapshotting>1</ThresholdForSnapshotting>
            <!-- Other properties are documented at https://aka.ms/pnv0qt -->
        </Add>
    </TelemetryProcessors>
</ApplicationInsights>
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我错过了什么？

小智 3

最初在GitHub 问题中回答了这个问题。

因此，我花了几乎一天的时间尝试让快照调试器在旧版 ASP.NET 应用程序中工作，现在它终于可以工作了！虽然不能保证我遇到的问题与您的相同，但我相信很有可能，因为我遇到的症状基本相同。

TL;DR：是的<assemblyBinding>。

问题

Application Insights 可能会尝试通过（默默地？）忽略故障来恢复故障。

这就是它的作用SnapshotCollectorTelemetryProcessor。如果加载失败，它会默默地跳过它，并且在没有加载的情况下愉快地继续。您可以通过输入任何垃圾而不是Microsoft.ApplicationInsights.SnapshotCollector.SnapshotCollectorTelemetryProcessor, Microsoft.ApplicationInsights.SnapshotCollector 作为Type属性值来验证这一点ApplicationInsights.config。

如果你检查TelemetryConfiguration.Active.DefaultTelemetrySink.TelemetryProcessors，它只会错过那些未能加载的内容。

验证该问题的一个可靠方法是加载程序集，只需在启动代码中的某处添加此行：

var _ = typeof(SnapshotCollectorTelemetryProcessor);
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这应该会触发错误。

AFAIK，与类库项目不同，Web.config在 ASP.NET 应用程序中无法从中受益，而一旦您移动到（或像我一样移动到“带有 glob 的新 csproj”），<AutoGenerateBindingRedirects>VS 中的 NuGet 包管理器也不会这样做。PackageReference所以你必须手动维护它。

“使固定”

截至今天，假设您的csproj文件中有这些参考版本，

<PackageReference Include="Microsoft.ApplicationInsights.SnapshotCollector" Version="1.3.7" />
<PackageReference Include="Microsoft.ApplicationInsights.Web" Version="2.14.0" />
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您可能至少需要 Web.config 中的这些重定向

<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
  <dependentAssembly>
    <assemblyIdentity name="Microsoft.ApplicationInsights" publicKeyToken="31bf3856ad364e35" culture="neutral" />
    <bindingRedirect oldVersion="0.0.0.0-2.14.0.17971" newVersion="2.14.0.17971" />
  </dependentAssembly>
  <dependentAssembly>
    <assemblyIdentity name="Microsoft.ApplicationInsights.SnapshotCollector" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
    <bindingRedirect oldVersion="0.0.0.0-1.3.7.0" newVersion="1.3.7.0" />
  </dependentAssembly>
  <dependentAssembly>
    <assemblyIdentity name="System.Diagnostics.DiagnosticSource" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
    <bindingRedirect oldVersion="0.0.0.0-4.0.4.0" newVersion="4.0.4.0" />
  </dependentAssembly>
</assemblyBinding>
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添加这些之后，我可以看到SnapshotUploader在磁盘上创建的目录，并且在模拟异常后不久，我可以看到门户中的一些快照。

额外的怪癖

如上所述，默认情况下的配置被错误地添加到根目录中ApplicationInsights.config，而不是在默认接收器下。

此外，由 创建的接收器配置Microsoft.ApplicationInsights.Web包含 的重复条目AdaptiveSamplingTelemetryProcessor，这可能会导致在某些情况下采样的遥测数据比预期少得多。

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