添加 Microsoft ApplicationInsights 遥测后出现 OutOfMemoryException

分类：编程问答

如何解决添加 Microsoft ApplicationInsights 遥测后出现 OutOfMemoryException

我们最近在我们的网站上添加了遥测（我们一直在运行一个由 Microsoft Azure 门户自动添加的遥测），但现在我已经实现了页面视图和带有配置文件 nuget 等的整个机制。

然后在发布后，它运行了几天，然后在午夜时分爆炸了，（我知道我应该点燃一支蜡烛并请一位俄罗斯教皇来祝福服务器，因为显然有邪恶势力参与其中）。

>

异常：

Castle.MicroKernel.ComponentActivator.ComponentActivatorException:
   at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.CreateInstanceCore (Castle.Windsor,Version=3.3.0.0,Culture=neutral,PublicKeyToken=407dd0808d44fbdc)
   at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.CreateInstance (Castle.Windsor,PublicKeyToken=407dd0808d44fbdc)
   at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.Instantiate (Castle.Windsor,PublicKeyToken=407dd0808d44fbdc)
   at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.InternalCreate (Castle.Windsor,PublicKeyToken=407dd0808d44fbdc)
   at Castle.MicroKernel.ComponentActivator.AbstractComponentActivator.Create (Castle.Windsor,PublicKeyToken=407dd0808d44fbdc)
   at Castle.MicroKernel.Lifestyle.AbstractLifestyleManager.CreateInstance (Castle.Windsor,PublicKeyToken=407dd0808d44fbdc)
   at Castle.MicroKernel.Lifestyle.AbstractLifestyleManager.Resolve (Castle.Windsor,PublicKeyToken=407dd0808d44fbdc)
   at Castle.MicroKernel.Handlers.DefaultHandler.ResolveCore (Castle.Windsor,PublicKeyToken=407dd0808d44fbdc)
   at Castle.MicroKernel.Handlers.DefaultHandler.Resolve (Castle.Windsor,PublicKeyToken=407dd0808d44fbdc)
   at Castle.MicroKernel.Handlers.AbstractHandler.Resolve (Castle.Windsor,PublicKeyToken=407dd0808d44fbdc)
   at Castle.MicroKernel.DefaultKernel.ResolveComponent (Castle.Windsor,PublicKeyToken=407dd0808d44fbdc)
   at Castle.MicroKernel.DefaultKernel.Castle.MicroKernel.IKernelInternal.Resolve (Castle.Windsor,PublicKeyToken=407dd0808d44fbdc)
   at Castle.MicroKernel.DefaultKernel.Resolve (Castle.Windsor,PublicKeyToken=407dd0808d44fbdc)
   at xxx.yyy.Globals.WindsorControllerFactory.GetControllerInstance (xxx.yyy,Version=1.7.25.8804,PublicKeyToken=nullxxx.yyy,PublicKeyToken=null: D:\a\1\s\source\yyy\Globals\WindsorControllerFactory.csxxx.yyy,PublicKeyToken=null: 29)
   at System.Web.Mvc.DefaultControllerFactory.CreateController (System.Web.Mvc,Version=5.2.3.0,PublicKeyToken=31bf3856ad364e35)
   at System.Web.Mvc.MvcHandler.ProcessRequestInit (System.Web.Mvc,PublicKeyToken=31bf3856ad364e35)
   at System.Web.Mvc.MvcHandler.BeginProcessRequest (System.Web.Mvc,PublicKeyToken=31bf3856ad364e35)
   at System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.BeginProcessRequest (System.Web.Mvc,PublicKeyToken=31bf3856ad364e35)
   at System.Web.HttpApplication+CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute (System.Web,Version=4.0.0.0,PublicKeyToken=b03f5f7f11d50a3a)
   at System.Web.HttpApplication+<>c__DisplayClass285_0.<ExecuteStepImpl>b__0 (System.Web,PublicKeyToken=b03f5f7f11d50a3a)
   at System.Web.HttpApplication+StepInvoker.Invoke (System.Web,PublicKeyToken=b03f5f7f11d50a3a)
   at System.Web.HttpApplication+StepInvoker+<>c__DisplayClass4_0.<Invoke>b__0 (System.Web,PublicKeyToken=b03f5f7f11d50a3a)
   at Microsoft.AspNet.TelemetryCorrelation.TelemetryCorrelationHttpModule.OnExecuteRequestStep (Microsoft.AspNet.TelemetryCorrelation,Version=1.0.8.0,PublicKeyToken=31bf3856ad364e35)
   at System.Web.HttpApplication+<>c__DisplayClass284_0.<OnExecuteRequestStep>b__0 (System.Web,PublicKeyToken=b03f5f7f11d50a3a)
   at Microsoft.ApplicationInsights.Web.ApplicationInsightsHttpModule.OnExecuteRequestStep (Microsoft.AI.Web,Version=2.13.1.12554,PublicKeyToken=31bf3856ad364e35Microsoft.AI.Web,PublicKeyToken=31bf3856ad364e35: E:\A\_work\13\s\WEB\Src\Web\Web.Shared.Net\ApplicationInsightsHttpModule.csMicrosoft.AI.Web,PublicKeyToken=31bf3856ad364e35: 164)
   at System.Web.HttpApplication+<>c__DisplayClass284_0.<OnExecuteRequestStep>b__0 (System.Web,PublicKeyToken=b03f5f7f11d50a3a)
   at System.Web.HttpApplication.ExecuteStepImpl (System.Web,PublicKeyToken=b03f5f7f11d50a3a)
   at System.Web.HttpApplication.ExecuteStep (System.Web,PublicKeyToken=b03f5f7f11d50a3a)
Inner exception System.Reflection.TargetInvocationException handled at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.CreateInstanceCore:
   at System.RuntimeMethodHandle.InvokeMethod (mscorlib,PublicKeyToken=b77a5c561934e089)
   at System.Reflection.RuntimeConstructorInfo.Invoke (mscorlib,PublicKeyToken=b77a5c561934e089)
   at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.FastCreateInstance (Castle.Windsor,PublicKeyToken=407dd0808d44fbdc)
   at Castle.MicroKernel.ComponentActivator.DefaultComponentActivator.CreateInstanceCore (Castle.Windsor,PublicKeyToken=407dd0808d44fbdc)
Inner exception System.Threading.Tasks.TaskSchedulerException handled at System.RuntimeMethodHandle.InvokeMethod:
   at System.Threading.Tasks.Task.ScheduleAndStart (mscorlib,PublicKeyToken=b77a5c561934e089)
   at System.Threading.Tasks.Task.InternalStartNew (mscorlib,PublicKeyToken=b77a5c561934e089)
   at System.Threading.Tasks.TaskFactory.StartNew (mscorlib,PublicKeyToken=b77a5c561934e089)
   at Microsoft.ApplicationInsights.Channel.InMemoryTransmitter..ctor (Microsoft.ApplicationInsights,PublicKeyToken=31bf3856ad364e35Microsoft.ApplicationInsights,PublicKeyToken=31bf3856ad364e35: E:\A\_work\13\s\BASE\src\Microsoft.ApplicationInsights\Channel\InMemoryTransmitter.csMicrosoft.ApplicationInsights,PublicKeyToken=31bf3856ad364e35: 45)
   at Microsoft.ApplicationInsights.Channel.InMemoryChannel..ctor (Microsoft.ApplicationInsights,PublicKeyToken=31bf3856ad364e35: E:\A\_work\13\s\BASE\src\Microsoft.ApplicationInsights\Channel\InMemoryChannel.csMicrosoft.ApplicationInsights,PublicKeyToken=31bf3856ad364e35: 33)
   at Microsoft.ApplicationInsights.Extensibility.TelemetrySink..ctor (Microsoft.ApplicationInsights,PublicKeyToken=31bf3856ad364e35: E:\A\_work\13\s\BASE\src\Microsoft.ApplicationInsights\Extensibility\TelemetrySink.csMicrosoft.ApplicationInsights,PublicKeyToken=31bf3856ad364e35: 45)
   at Microsoft.ApplicationInsights.Extensibility.TelemetryConfiguration..ctor (Microsoft.ApplicationInsights,PublicKeyToken=31bf3856ad364e35: E:\A\_work\13\s\BASE\src\Microsoft.ApplicationInsights\Extensibility\TelemetryConfiguration.csMicrosoft.ApplicationInsights,PublicKeyToken=31bf3856ad364e35: 95)
   at xxx.yyy.Controllers.BaseController..ctor (xxx.yyy,PublicKeyToken=null: D:\a\1\s\source\yyy\Controllers\BaseController.csxxx.yyy,PublicKeyToken=null: 15)
   at xxx.yyy.Controllers.ExportController..ctor (xxx.yyy,PublicKeyToken=null: D:\a\1\s\source\yyy\Controllers\ExportController.csxxx.yyy,PublicKeyToken=null: 24)
Inner exception System.OutOfMemoryException handled at System.Threading.Tasks.Task.ScheduleAndStart:
   at System.Threading.Thread.StartInternal (mscorlib,PublicKeyToken=b77a5c561934e089)
   at System.Threading.Thread.Start (mscorlib,PublicKeyToken=b77a5c561934e089)
   at System.Threading.Tasks.ThreadPoolTaskScheduler.QueueTask (mscorlib,PublicKeyToken=b77a5c561934e089)
   at System.Threading.Tasks.Task.ScheduleAndStart (mscorlib,PublicKeyToken=b77a5c561934e089)

代码：

 public class BaseController : Controller,IyyyController
 {
    private TelemetryClient telemetry = new TelemetryClient(new Microsoft.ApplicationInsights.Extensibility.TelemetryConfiguration(ConfigurationManager.AppSettings["ApplicationInsightKey"]));

 ...

 protected override void OnActionExecuting(ActionExecutingContext filterContext)
    {
        base.OnActionExecuting(filterContext);
        var user = ViewBag.CurrentUser = db.GetCurrentUser();
        SendApplicationInsightsTelemetry(filterContext,user);
    }

 private void SendApplicationInsightsTelemetry(ActionExecutingContext filterContext,User user)
    {
        try
        {
            PageViewTelemetry telemetrypageView = new PageViewTelemetry()
            {
                Name = filterContext?.HttpContext?.Request?.RawUrl,Url = filterContext?.HttpContext?.Request?.Url
            };

            if (filterContext.HttpContext.Session["Id"] == null)
                filterContext.HttpContext.Session["Id"] = Guid.NewGuid().ToString();

            telemetrypageView.Context.Session.Id = filterContext.HttpContext.Session["Id"].ToString();

            if (user != null)
            {
                telemetrypageView.Context.User.Id = user.zzz.ToString();
                telemetrypageView.Context.User.AccountId = user.ooo;
            }

            telemetry.TrackPageView(telemetrypageView);
        }
        catch (Exception e)
        {
            Trace.TraceError($"{nameof(SendApplicationInsightsTelemetry)},{e.Message}");
        }
    }

问题在于：

private TelemetryClient telemetry = new TelemetryClient(new Microsoft.ApplicationInsights.Extensibility.TelemetryConfiguration(ConfigurationManager.AppSettings["ApplicationInsightKey"]));

上面的代码可能导致内存泄漏还是更阴险的东西？

解决方法

答案是可能的。 TelemetryClient 不是 IDisposable 但 TelemetryConfiguration 是，所以：

更换后

private TelemetryClient telemetry = new TelemetryClient(new Microsoft.ApplicationInsights.Extensibility.TelemetryConfiguration(ConfigurationManager.AppSettings["ApplicationInsightKey"]));

与

    private readonly TelemetryClient telemetry;
    private readonly Microsoft.ApplicationInsights.Extensibility.TelemetryConfiguration telemetryConfiguration;

    protected BaseController(ProjectPlanContext dbContext)
    {
        telemetryConfiguration = new Microsoft.ApplicationInsights.Extensibility.TelemetryConfiguration(ConfigurationManager.AppSettings["ApplicationInsightKey"]);
        telemetry = new TelemetryClient(telemetryConfiguration);
    }

    protected override void Dispose(bool disposing)
    {
        telemetryConfiguration.Dispose();
        base.Dispose(disposing);
    }

它再也没有回来

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