通过 Nuget 更新后出现 SignalR 2.0 错误

Question

我已在 ASPNET MVC 4.0 应用程序中将 SignalR 更新为 2.0，现在我收到以下错误:

计数器 'Message Bus Messages Published Total' 在指定的类别中不存在

错误被抛出

app.MapSignalR();

这是我现在在 Startup 类中使用的代码(之前我使用过 RegisterHubs。

public static class Startup
{
    public static void Configuration(IAppBuilder app)
    {
        var signalrDependencyContainer = new WindsorContainer().Install(new HubsInstaller());
        var signalrDependency = new SignalrDependencyResolver(signalrDependencyContainer.Kernel);
        GlobalHost.DependencyResolver = signalrDependency;
        app.MapSignalR();
    }
}

更新

这是根据要求提取的部分代码。

这是我在安装计数器时得到的

PM> signalr ipc
SignalR Utility Version: 1.1.0.0
Installing performance counters...
  Connections Connected
  Connections Reconnected
  Connections Disconnected
  Connections Current
  Connection Messages Received Total
  Connection Messages Sent Total
  Connection Messages Received/Sec
  Connection Messages Sent/Sec
  Message Bus Messages Received Total
  Message Bus Messages Received/Sec
  Scaleout Message Bus Messages Received/Sec
  Messages Bus Messages Published Total
  Messages Bus Messages Published/Sec
  Message Bus Subscribers Current
  Message Bus Subscribers Total
  Message Bus Subscribers/Sec
  Message Bus Allocated Workers
  Message Bus Busy Workers
  Message Bus Topics Current
  Errors: All Total
  Errors: All/Sec
  Errors: Hub Resolution Total
  Errors: Hub Resolution/Sec
  Errors: Hub Invocation Total
  Errors: Hub Invocation/Sec
  Errors: Tranport Total
  Errors: Transport/Sec
  Scaleout Streams Total
  Scaleout Streams Open
  Scaleout Streams Buffering
  Scaleout Errors Total
  Scaleout Errors/Sec
  Scaleout Send Queue Length

Performance counters installed!

StartupOwin.cs

using org.app.Ui.Web.App_Start;
using Microsoft.Owin;
[assembly: OwinStartup(typeof(StartupOwin), "Configuration")]
namespace org.app.Ui.Web.App_Start
{
    using Owin;

    public class StartupOwin
    {
        public void Configuration(IAppBuilder app)
        {
            org.app.Ui.Web.App_Start.StartupSignalR.ConfigureSignalR(app);
        }
    }
}

StartupSignalR.cs

namespace org.app.Ui.Web.App_Start
{
    using Castle.Windsor;
    using org.app.Ui.Web.Infrastructure;
    using Microsoft.AspNet.SignalR;
    using Owin;

    public static class StartupSignalR
    {
        public static void ConfigureSignalR(IAppBuilder app)
        {
            app.MapSignalR(new HubConfiguration
            {
                Resolver = new SignalrDependencyResolver(
                    new WindsorContainer()
                    .Install(new HubsInstaller()).Kernel)
            });
        }
    }
}

HubNewHandler.cs

namespace org.app.Ui.Web.Hubs
{
    using System;
    using System.Data.Entity;
    using System.Data.Entity.Core.Objects;
    using System.Linq;
    using System.Timers;

    using Castle.MicroKernel;
    using Castle.MicroKernel.Lifestyle;
    using Castle.Windsor;
    using org.app.Data.Contracts;
    using org.app.Data.Model;

    using Microsoft.AspNet.SignalR;

    public class HubNewHandler : IHubNewHandler
    {
        private System.Timers.Timer aTimer;
        private DateTime lastDate = DateTime.UtcNow;
        readonly private IKernel kernel;

        public HubNewHandler(IKernel kernel)
        {
            this.kernel = kernel;
        }

        public void StartTimer()
        {
            aTimer = new System.Timers.Timer(10000);
            aTimer.Elapsed += new ElapsedEventHandler(SendNewMessage);
            aTimer.Enabled = true;
            GC.KeepAlive(aTimer);
        }

        public void SendNewMessage(object state, ElapsedEventArgs elapsedEventArgs)
        {
            using (kernel.BeginScope())
            {
                var gdpUow = kernel.Resolve<IGdpUow>();

                var gdpTesisConfigurationsRecord = gdpUow.GdpConfigurations.GetByPredicate(a => a.Description.Equals("LastDateTimeMessagesCheck")).SingleOrDefault();

                if (gdpTesisConfigurationsRecord == null)
                {
                    gdpTesisConfigurationsRecord = new GdpConfiguration
                            {
                                Description = "LastDateTimeMessagesCheck",
                                DateTimeValue = DateTime.Now.ToUniversalTime()
                            };
                    gdpUow.GdpConfigurations.Add(gdpTesisConfigurationsRecord);
                }

                var lastMessagesDateTimeCheck = gdpTesisConfigurationsRecord.DateTimeValue;
                var messagesList = GetShowableMessagesList(gdpUow, lastMessagesDateTimeCheck);

                // Get a hub context for ServerHub
                var serverHub = GlobalHost.ConnectionManager.GetHubContext<ServerHub>();

                // Send a message to all the clients
                serverHub.Clients.All.addNewMessagesToMap(messagesList, false);

                gdpTesisConfigurationsRecord.DateTimeValue = elapsedEventArgs.SignalTime.ToUniversalTime();
                gdpUow.GdpConfigurations.Update(gdpTesisConfigurationsRecord);
                gdpUow.Commit();
            }
        }
    }
}

ServerHub.cs

namespace org.app.Ui.Web.Hubs
{
    using System;
    using System.Linq;
    using System.Threading.Tasks;
    using Data.Contracts;
    using Data.Model;
    using Microsoft.AspNet.SignalR;

    public class ServerHub : Hub
    {
        public IGdpUow Uow { get; set; }

        public override Task OnConnected()
        {
            var connectionId = Guid.Parse(Context.ConnectionId);
            return base.OnConnected();
        }

        public override Task OnDisconnected()
        {
            var connectionId = Guid.Parse(Context.ConnectionId);
            return base.OnDisconnected();
        }

        public override Task OnReconnected()
        {
            var connectionId = Guid.Parse(Context.ConnectionId);
            return base.OnReconnected();
        }

        public void GetAllMessages()
        {
            var messagesList = Uow.Messages.GetAll();
            Clients.All.addNewMessagesToMap(messagesList, true);
        }
    }
}

任何想法可能是什么问题？
提前致谢。吉列尔莫。

Answer 1

尝试安装不同版本的 Microsoft.AspNet.SignalR.Utils。安装 1.1.2 版的 utils 后出现此错误。我卸载了它，并安装了 2.1.1 版:

Install-Package microsoft.aspnet.SignalR.Utils -version 2.1.1

然后我再次运行命令:

signalr.exe ipc

最后，我重新启动了我的应用程序并且它起作用了。问题似乎是一个版本使用“ 消息总线消息发布总数”而另一个版本使用“ 消息总线消息发布总数”(注意“消息”中缺少“s” “在第二个)。 See more information here (how's your Korean?)