SignalR -当部署到服务器时工作，但在几个小时后停止(MVC)

Question

编辑:查看这篇文章的底部以获得更新。

我的SignalR实现在我的本地系统上工作得很好。但是当我把它部署到我的服务器上时，它似乎不起作用。这是一个MVC项目。

我的signalR jQuery如下所示：

var clientHub = $.connection.gamehub;

$(function () {

    var signalRHubInitialized = false;

    var image = $("#Ico");

    var count = 0;

    initializeSignalRHubStore();

    function initializeSignalRHubStore() {

        if (signalRHubInitialized)
            return;

        try {

            clientHub.client.broadcastMessage = function (message) {
                if (message === "Refresh")
                    reloadIndexPartial();
            };

            $.connection.hub.start().done(function () {
                clientHub.server.initialize($("#NotifierEntity").val());
                signalRHubInitialized = true;
            });

        } catch (err) {
            signalRHubInitialized = false;
        }
    };

    function reloadIndexPartial() {
        //$.post('@(Url.Action("LivePartial", "Scrim", null, Request.Url.Scheme))')
        var id = $("#SeriesDetail_Id").val();
        $.post('/Scrim/LivePartial/' + id)
            .done(function (response) {
                try {
                    count = count + 1;
                    var favicon = new Favico({
                        animation: 'pop',
                        image: image
                    });
                    favicon.badge(count);
                }
                catch (exception) {

                }
                $("#summary-wrapper").html("");
                $("#summary-wrapper").html(response);
                if (!signalRHubInitialized)
                    initializeSignalRHubStore();
            });
    };
});

我下载了Fiddler来看看发生了什么事：

/signalr/集线器返回一个HTTP200

GET http://sitename.com/signalr/hubs HTTP/1.1
Host: sitename.com
Connection: keep-alive
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36
Accept: */*
Referer: http://sitename.com/scrim/Live/2835
Accept-Encoding: gzip, deflate
Accept-Language: en-US,en;q=0.8
Cookie: _gat=1; _ga=GA1.2.1342148401.1475084375; _gid=GA1.2.2092796788.1503865866

谈判在HTTP200返回

GET http://sitename.com/signalr/negotiate?clientProtocol=1.5&connectionData=%5B%7B%22name%22%3A%22gamehub%22%7D%5D&_=1505151041506 HTTP/1.1
Host: sitename.com
Connection: keep-alive
Accept: text/plain, */*; q=0.01
X-Requested-With: XMLHttpRequest
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36
Content-Type: application/json; charset=UTF-8
Referer: http://sitename.com/scrim/Live/2835
Accept-Encoding: gzip, deflate
Accept-Language: en-US,en;q=0.8
Cookie: _gat=1; _ga=GA1.2.1342148401.1475084375; _gid=GA1.2.2092796788.1503865866

连接，没有返回任何东西

GET http://sitename.com/signalr/connect?transport=serverSentEvents&clientProtocol=1.5&connectionToken=S8rqz2NPvVSJxbS1%2FpLm7yHTinGHWK1SnAwh8IfYA%2BP7nVb9RV%2FJzSFsf8Q%2BTv6Z%2Fae%2FIoZKlHKyeTxaEn3obg%2FVViYTB5HZxnrvKvtBZtQopvGPdj1i4o8Z9wGlCz3%2F&connectionData=%5B%7B%22name%22%3A%22gamehub%22%7D%5D&tid=10 HTTP/1.1
Host: sitename.com
Connection: keep-alive
Accept: text/event-stream
Cache-Control: no-cache
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36
Referer: http://sitename.com/scrim/Live/2835
Accept-Encoding: gzip, deflate
Accept-Language: en-US,en;q=0.8
Cookie: _gat=1; _ga=GA1.2.1342148401.1475084375; _gid=GA1.2.2092796788.1503865866

开始返回一个HTTP200

GET http://sitename.com/signalr/start?transport=serverSentEvents&clientProtocol=1.5&connectionToken=S8rqz2NPvVSJxbS1%2FpLm7yHTinGHWK1SnAwh8IfYA%2BP7nVb9RV%2FJzSFsf8Q%2BTv6Z%2Fae%2FIoZKlHKyeTxaEn3obg%2FVViYTB5HZxnrvKvtBZtQopvGPdj1i4o8Z9wGlCz3%2F&connectionData=%5B%7B%22name%22%3A%22gamehub%22%7D%5D&_=1505151041507 HTTP/1.1
Host: sitename.com
Connection: keep-alive
Accept: text/plain, */*; q=0.01
X-Requested-With: XMLHttpRequest
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36
Content-Type: application/json; charset=UTF-8
Referer: http://sitename.com/scrim/Live/2835
Accept-Encoding: gzip, deflate
Accept-Language: en-US,en;q=0.8
Cookie: _gat=1; _ga=GA1.2.1342148401.1475084375; _gid=GA1.2.2092796788.1503865866

发送返回一个HTTP200

POST http://sitename.com/signalr/send?transport=serverSentEvents&clientProtocol=1.5&connectionToken=S8rqz2NPvVSJxbS1%2FpLm7yHTinGHWK1SnAwh8IfYA%2BP7nVb9RV%2FJzSFsf8Q%2BTv6Z%2Fae%2FIoZKlHKyeTxaEn3obg%2FVViYTB5HZxnrvKvtBZtQopvGPdj1i4o8Z9wGlCz3%2F&connectionData=%5B%7B%22name%22%3A%22gamehub%22%7D%5D HTTP/1.1
Host: sitename.com
Connection: keep-alive
Content-Length: 2227
Accept: text/plain, */*; q=0.01
Origin: http://sitename.com
X-Requested-With: XMLHttpRequest
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
Referer: http://sitename.com/scrim/Live/2835
Accept-Encoding: gzip, deflate
Accept-Language: en-US,en;q=0.8
Cookie: _gat=1; _ga=GA1.2.1342148401.1475084375; _gid=GA1.2.2092796788.1503865866

data=%7B%22H%22%3A%22gamehub%22%2C%22M%22%3A%22Initialize%22%2C%22A%22%3A%5B%22%7B%5C%22SqlQuery%5C%22%3A%5C%22SELECT+%5C%5Cr%5C%5Cn++++%5BExtent1%5D.%5BId%5D+AS+%5BId%5D%2C+%5C%5Cr%5C%5Cn++++%5BExtent1%5D.%5BGameGuid%5D+AS+%5BGameGuid%5D%2C+%5C%5Cr%5C%5Cn++++%5BExtent1%5D.%5BDate%5D+AS+%5BDate%5D%2C+%5C%5Cr%5C%5Cn++++%5BExtent1%5D.%5BTeamOneScore%5D+AS+%5BTeamOneScore%5D%2C+%5C%5Cr%5C%5Cn++++%5BExtent1%5D.%5BTeamZeroScore%5D+AS+%5BTeamZeroScore%5D%2C+%5C%5Cr%5C%5Cn++++%5BExtent1%5D.%5BTeamOneId%5D+AS+%5BTeamOneId%5D%2C+%5C%5Cr%5C%5Cn++++%5BExtent1%5D.%5BTeamZeroId%5D+AS+%5BTeamZeroId%5D%2C+%5C%5Cr%5C%5Cn++++%5BExtent1%5D.%5BGameVariantId%5D+AS+%5BGameVariantId%5D%2C+%5C%5Cr%5C%5Cn++++%5BExtent1%5D.%5BMapId%5D+AS+%5BMapId%5D%2C+%5C%5Cr%5C%5Cn++++%5BExtent1%5D.%5BDuration%5D+AS+%5BDuration%5D%2C+%5C%5Cr%5C%5Cn++++%5BExtent1%5D.%5BSeriesId%5D+AS+%5BSeriesId%5D%2C+%5C%5Cr%5C%5Cn++++%5BExtent1%5D.%5BResult%5D+AS+%5BResult%5D%2C+%5C%5Cr%5C%5Cn++++%5BExtent1%5D.%5BActive%5D+AS+%5BActive%5D%5C%5Cr%5C%5Cn++++FROM+%5Bdbo%5D.%5BGame%5D+AS+%5BExtent1%5D%5C%5Cr%5C%5Cn++++WHERE+(%5BExtent1%5D.%5BActive%5D+%3D+1)+AND+(%5BExtent1%5D.%5BSeriesId%5D+%3D+%40p__linq__0)%5C%22%2C%5C%22SqlConnectionString%5C%22%3A%5C%22Data+Source%3DWIN-1J1JAEOEU33%3BInitial+Catalog%3DSiteName%3BIntegrated+Security%3DTrue%3BMultipleActiveResultSets%3DTrue%3B%5C%22%2C%5C%22SqlParameters%5C%22%3A%5B%7B%5C%22CompareInfo%5C%22%3A0%2C%5C%22XmlSchemaCollectionDatabase%5C%22%3A%5C%22%5C%22%2C%5C%22XmlSchemaCollectionOwningSchema%5C%22%3A%5C%22%5C%22%2C%5C%22XmlSchemaCollectionName%5C%22%3A%5C%22%5C%22%2C%5C%22DbType%5C%22%3A11%2C%5C%22LocaleId%5C%22%3A0%2C%5C%22ParameterName%5C%22%3A%5C%22p__linq__0%5C%22%2C%5C%22Precision%5C%22%3A0%2C%5C%22Scale%5C%22%3A0%2C%5C%22SqlDbType%5C%22%3A8%2C%5C%22SqlValue%5C%22%3A%7B%5C%22IsNull%5C%22%3Afalse%2C%5C%22Value%5C%22%3A2835%7D%2C%5C%22UdtTypeName%5C%22%3A%5C%22%5C%22%2C%5C%22TypeName%5C%22%3A%5C%22%5C%22%2C%5C%22Value%5C%22%3A2835%2C%5C%22Direction%5C%22%3A1%2C%5C%22IsNullable%5C%22%3Afalse%2C%5C%22Offset%5C%22%3A0%2C%5C%22Size%5C%22%3A0%2C%5C%22SourceColumn%5C%22%3A%5C%22%5C%22%2C%5C%22SourceColumnNullMapping%5C%22%3Afalse%2C%5C%22SourceVersion%5C%22%3A512%7D%5D%7D%22%5D%2C%22I%22%3A0%7D

我已将此添加到我的web配置中：

<modules runAllManagedModulesForAllRequests="true"></modules>

纵观所有的响应，似乎一切都正常工作，但当一个新条目被添加到数据库时，我所在的页面并没有被更新。

在我的本地开发系统上，我的项目是使用IIS建立的，它运行得完美无缺。

谁能给我指出正确的方向吗？

编辑:我已经让它在服务器上工作了。但是它似乎在部署了几个小时之后才起作用。在那之后，它似乎停止工作了。所以我得假设signalr连接在某个阶段被处理了，现在又恢复了？

这是我的RegisterServices课程：

private static IContainer RegisterServices(ContainerBuilder builder)
{
    builder.RegisterControllers(Assembly.GetExecutingAssembly());

    builder.RegisterApiControllers(Assembly.GetExecutingAssembly());

    builder.RegisterType<ContextEntities>()
           .As<DbContext>()
           .InstancePerRequest();

    builder.RegisterType<DbFactory>()
        .As<IDbFactory>()
        .InstancePerRequest();

    builder.RegisterType<UnitOfWork>()
        .As<IUnitOfWork>()
        .InstancePerRequest();

    // Services

    builder.RegisterType<MembershipService>()
    .As<IMembershipService>()
    .InstancePerRequest();

    builder.RegisterType<CacheService>()
    .As<ICacheService>()
    .InstancePerRequest();

    builder.RegisterType<GameHub>().ExternallyOwned();

    Container = builder.Build();

    return Container;
}

下面是使用signalr的页面：http://halodatahive.com/Scrim/Live/2845

部署几小时后，我似乎失去了对signalr连接的引用。

编辑:如果我回收我的应用程序池，使用signalR的页面将重新开始工作。

Answer 1

这就是我最后用来解决这个问题的方法。似乎在大约一个小时后，它被断开了一些方式。我几个小时前就把这段代码放进去了，它似乎还在工作。感谢@Noren，感谢他们早些时候在聊天方面的帮助！

编辑:不幸的是，这似乎并没有解决问题。

$.connection.hub.disconnected(function() {
    setTimeout(function() {
      $.connection.hub.start();
    }, 5000); // Restart connection after 5 seconds.
});

编辑:我想介绍一下我是如何做到这一点的。没有使用SqlDependency触发SignalR，而是在调用_unitOfWork.Commit()时，在服务器上运行的调度任务上调用了Clients.All.broadcastMessage("Refresh");。

有些东西导致SqlDependency停止工作，而让它重新拾起它的唯一方法是回收应用程序池。

Answer 2

我以前见过这样的东西。在我的例子中，由于IIS正在关闭应用程序，所以丢失的是RabbitMQ事件。

您的应用程序不经常被访问吗？IIS倾向于缩减它认为节省资源不需要的应用程序。这可能就是为什么它只在几个小时后停止工作，你可以回收利用它回来。

See this answer.

Answer 3

首先在根目录中添加集线器、文件夹和NotificationsHubs.cs

​

​

在NotificationsHubs.cs中

[HubName("NotificationsHubs")]
public class NotificationsHubs : Hub
{

    public static Thread NotificationsThread;
    public void Send(string token, string UserAgent, string IP)
    {
        var serverVars = Context.Request.GetHttpContext().Request.ServerVariables;
        string SignalRIp = serverVars["REMOTE_ADDR"];

        string T = Context.Request.Headers["User-Agent"].ToLower();
        if ((T == cryptClass.crypt.Decrypt(UserAgent))  && (SignalRIp == cryptClass.crypt.Decrypt(IP)))
        {
            var connection = SignalRConnections.Connections.SingleOrDefault(c => c.Token == Guid.Parse(token));
            if (connection != null)
            {
                connection.Context = this.Context;
            }

            if (NotificationsThread == null || !NotificationsThread.IsAlive)
            {
               NotificationsThread = new Thread(new ThreadStart(NotificationsCheck));
                NotificationsThread.Start();
            }
        }

NotificationsCheck 是自定义函数

在NotificationController中

public ActionResult Notifications()
{
    NotificationsModule.messageBL = _messageBL;
    long UserID = GetCurrentUser();
    Notification _Notification = new Notification();
    _Notification.GetToken = SignalRConnections.GetToken(UserID);
    _Notification.UserAgent = cryptClass.crypt.Encrypt(Request.UserAgent.ToLower());
    _Notification.IP = cryptClass.crypt.Encrypt(Request.UserHostAddress);
    return View(_Notification);
}

在Notifications.cshtml视图中

添加此JS文件

    <script src="~/Scripts/jquery.signalR-2.2.1.js")"></script>
    <script src="~/signalr/hubs"></script>

$(function () {

    // Reference the auto-generated proxy for the hub.
    var chat = $.connection.NotificationsHubs;
    // Create a function that the hub can call back to display messages.
    chat.client.addNewMessageToPage = function (Title, Body, Icon) {
        // Add the message to the page.
        notifyMe(Title, Body, Icon);
    };

    $.connection.hub.start().done(function () {
        chat.server.send('@Model.GetToken', '@Model.UserAgent', '@Model.IP');
        $('#sendmessage').click(function () {
            // Call the Send method on the hub.
            chat.server.send();
        });
    });
});

notifyMe(Title, Body, Icon); 是jquery自定义函数。