请求的性能计数器不是自定义计数器，必须初始化为ReadOnly。“在RouteTable.Routes.MapHubs（）;

Question

我在AspNet MVC 4应用程序中使用SignalR 1.1.2版本和Windsor Castle。 我的问题是，自从我转移到较新的SignalR版本后，此错误消息显示出来。

"The requested Performance Counter is not a custom counter, it has to be initialized as ReadOnly."

在

行

    RouteTable.Routes.MapHubs();

这是RegisterHubs类

public static class RegisterHubs
{
    public static void Start()
    {
        var signalrDependencyContainer = new WindsorContainer().Install(new HubsInstaller());
        var signalrDependency = new SignalrDependencyResolver(signalrDependencyContainer.Kernel);
        GlobalHost.DependencyResolver = signalrDependency;
        RouteTable.Routes.MapHubs();
    }
}

我已经尝试了一些我在互联网上找到的东西，如：

lodctr /R
cd C:\Windows\Inf\.NETFramework
lodctr corperfmonsymbols.ini

但我仍然收到相同的错误消息。有任何想法吗？

我正在使用dotnet framework 4.5。

这是堆栈跟踪

at System.Diagnostics.PerformanceCounter.InitializeImpl()

谢谢！

更新 我正在添加Drew请求的屏幕截图。

Answer 1

因此，根据您提供的信息，很明显，当SignalR尝试创建性能计数器时，这些是第一次机会异常，但是没有权利使用进程运行的标识来执行此操作下。您可以放心地忽略这些异常，但显然您无法获得性能计数器数据。

如果要创建性能计数器，则需要确保应用程序的标识在运行时属于Performance Counter Users组。要么您需要使用Microsoft ASP.NET SignalR Utilities NuGet package中提供的实用程序应用程序，它允许您在带外创建计数器。只需安装软件包并运行命令：

signalr ipc

Answer 2

Drew Marsh's response，也解决了我的问题。以下是描述如何运行signalr命令的其他详细信息：

---

使用包管理器安装SignalR Utils：

1. 在VS中：工具 - ＆gt;库包管理器 - ＆gt;包管理器 控制台

2. 从命令行键入：

   PM＆GT; Install-Package Microsoft.AspNet.SignalR.Utils

3. 以管理员身份运行IDE，运行：

   PM＆GT; signalr ipc

运行性能计数器安装命令（signalr ipc）需要管理员权限 - 运行时不会导致此错误：

  

错误：System.Security.SecurityException：请求的注册表访问   不被允许。          at Microsoft.Win32.RegistryKey.OpenSubKey（String name，Boolean writable）          在System.Diagnostics.PerformanceCounterLib.CreateRegistryEntry（String   categoryName，PerformanceCounterCategoryType categoryType，CounterCreationDataCollec       创建数据，布尔和＆amp; iniRegistered）          在System.Diagnostics.PerformanceCounterLib.RegisterCategory（String   类别       Name，PerformanceCounterCategoryType categoryType，String categoryHelp，Counter       CreationDataCollection creationData）          在System.Diagnostics.PerformanceCounterCategory.Create（String categoryName，        String categoryHelp，PerformanceCounterCategoryType categoryType，       CounterCreationDataCollection counterData）          在Microsoft.AspNet.SignalR.Utils.PerformanceCounterInstaller.InstallCounters（）

   at Microsoft.AspNet.SignalR.Utils.InstallPerformanceCountersCommand.Execute(
String[] args)
   at Microsoft.AspNet.SignalR.Utils.Program.Main(String[] args)
The Zone of the assembly that failed was:
MyComputer

Answer 3

请注意，如果您遵循上述（正确）建议并调用“signalr ipc＆＃39;要安装SignalR的自定义计数器，在使用调试器运行时，您的应用程序可能会莫名其妙地完全停止工作。   问题是CLR在初始化时如何处理CultureInfo的错误。问题至少存在于SignalR 2.2.0中。 这里将讨论完整的解释和几个解决方法：https://github.com/SignalR/SignalR/issues/3414

Answer 4

解决了这个问题。在我的测试或生产服务器中，我没有安装在其中的Visual Studio这样的IDE。所以我坚持同样的错误。最后我简单地完成了以下步骤：

请按照安装VS的服务器中的以下步骤进行操作

• 在VS中：工具 - ＆gt; NuGet包管理器 - ＆gt;包管理器控制台 从命令行键入：

• PM＆GT; Install-Package Microsoft.AspNet.SignalR.Utils

• 转到包裹 - ＆gt; Microsoft.AspNet.SignalR.Utils.2.2.3 - ＆gt;工具

• 复制signalr.exe

请按照测试或生产服务器中的以下步骤进行操作

• 在bin下粘贴signalr.exe - ＆gt;调试文件夹并复制路径
• 在管理员模式下打开命令提示符并将目录更改为复制的路径
• 输入并运行命令signalr.exe ipc

成功运行上面的命令后，我启动了它运行良好的应用程序。如果他们在测试环境中需要它，我刚刚发布给其他人。

Answer 5

这是无法使用管理员权限运行的开发人员的解决方案。在下面创建类，然后将其添加到DependencyResolver中：

// Stop exception being thrown when trying to access performance counters
var dummyPerformanceCounterManager = new DummyPerformanceCounterManager();
GlobalHost.DependencyResolver.Register(
    typeof(IPerformanceCounterManager), 
    () =>dummyPerformanceCounterManager);

这里是替换PerformanceCounterManager的类

public class DummyPerformanceCounterManager : IPerformanceCounterManager
{
  private readonly static PropertyInfo[] _counterProperties = GetCounterPropertyInfo();
  private readonly static IPerformanceCounter _noOpCounter = new NoOpPerformanceCounter();

  public DummyPerformanceCounterManager()
  {
    foreach (var property in _counterProperties)
    {
      property.SetValue(this, new NoOpPerformanceCounter(), null);
    }
  }

  public void Initialize(string instanceName, CancellationToken hostShutdownToken)
  {
  }

  public IPerformanceCounter LoadCounter(string categoryName, string counterName, string instanceName, bool isReadOnly)
  {
    return _noOpCounter;
  }

  internal static PropertyInfo[] GetCounterPropertyInfo()
  {
    return typeof(DummyPerformanceCounterManager)
        .GetProperties()
        .Where(p => p.PropertyType == typeof(IPerformanceCounter))
        .ToArray();
  }
  public IPerformanceCounter ConnectionsConnected { get; set; }
  public IPerformanceCounter ConnectionsReconnected { get; set; }
  public IPerformanceCounter ConnectionsDisconnected { get; set; }
  public IPerformanceCounter ConnectionsCurrentForeverFrame { get; private set; }
  public IPerformanceCounter ConnectionsCurrentLongPolling { get; private set; }
  public IPerformanceCounter ConnectionsCurrentServerSentEvents { get; private set; }
  public IPerformanceCounter ConnectionsCurrentWebSockets { get; private set; }
  public IPerformanceCounter ConnectionsCurrent { get; private set; }
  public IPerformanceCounter ConnectionMessagesReceivedTotal { get; private set; }
  public IPerformanceCounter ConnectionMessagesSentTotal { get; private set; }
  public IPerformanceCounter ConnectionMessagesReceivedPerSec { get; private set; }
  public IPerformanceCounter ConnectionMessagesSentPerSec { get; private set; }
  public IPerformanceCounter MessageBusMessagesReceivedTotal { get; private set; }
  public IPerformanceCounter MessageBusMessagesReceivedPerSec { get; private set; }
  public IPerformanceCounter ScaleoutMessageBusMessagesReceivedPerSec { get; private set; }
  public IPerformanceCounter MessageBusMessagesPublishedTotal { get; private set; }
  public IPerformanceCounter MessageBusMessagesPublishedPerSec { get; private set; }
  public IPerformanceCounter MessageBusSubscribersCurrent { get; private set; }
  public IPerformanceCounter MessageBusSubscribersTotal { get; private set; }
  public IPerformanceCounter MessageBusSubscribersPerSec { get; private set; }
  public IPerformanceCounter MessageBusAllocatedWorkers { get; private set; }
  public IPerformanceCounter MessageBusBusyWorkers { get; private set; }
  public IPerformanceCounter MessageBusTopicsCurrent { get; private set; }
  public IPerformanceCounter ErrorsAllTotal { get; private set; }
  public IPerformanceCounter ErrorsAllPerSec { get; private set; }
  public IPerformanceCounter ErrorsHubResolutionTotal { get; private set; }
  public IPerformanceCounter ErrorsHubResolutionPerSec { get; private set; }
  public IPerformanceCounter ErrorsHubInvocationTotal { get; private set; }
  public IPerformanceCounter ErrorsHubInvocationPerSec { get; private set; }
  public IPerformanceCounter ErrorsTransportTotal { get; private set; }
  public IPerformanceCounter ErrorsTransportPerSec { get; private set; }
  public IPerformanceCounter ScaleoutStreamCountTotal { get; private set; }
  public IPerformanceCounter ScaleoutStreamCountOpen { get; private set; }
  public IPerformanceCounter ScaleoutStreamCountBuffering { get; private set; }
  public IPerformanceCounter ScaleoutErrorsTotal { get; private set; }
  public IPerformanceCounter ScaleoutErrorsPerSec { get; private set; }
  public IPerformanceCounter ScaleoutSendQueueLength { get; private set; }
}

internal class NoOpPerformanceCounter : IPerformanceCounter
{
  public string CounterName => GetType().Name;
  public long Decrement() => 0;
  public long Increment() => 0;
  public long IncrementBy(long value) => 0;
  public long RawValue { get; set; } = 0;
  public void Close() { }
  public void RemoveInstance() { }
  CounterSample IPerformanceCounter.NextSample() => CounterSample.Empty;
}

Answer 6

如果您不想完全使用性能计数器，那么当您的解析器在请求 IPerformanceCounterManager 时返回“null”是完全没问题的。

见https://github.com/SignalR/SignalR/blob/master/src/Microsoft.AspNet.SignalR.Core/Hosting/HostDependencyResolverExtensions.cs

    private static void InitializePerformanceCounters(this IDependencyResolver resolver, string instanceName, CancellationToken hostShutdownToken)
    {
        var counters = resolver.Resolve<IPerformanceCounterManager>();
        if (counters != null)
        {
            counters.Initialize(instanceName, hostShutdownToken);
        }
    }

我刚刚遇到了这个问题，因为 ninject 在要求未配置的依赖项时抛出。