https://github.com/mdevilliers/SignalR.RabbitMq/issues/43
我真的很难让这个工作起来，有人可以看一下这个，看看设置中是否有问题吗？
这是我的测试：
我启动了两个自托管服务器，配置为相同的RabbitMqScaleoutConfiguration
[Test]
public void BasicBackplaneTest()
{
SubsciberTestServerNode nodeA = null;
SubsciberTestServerNode nodeB = null;
string messageA = null;
string messageB = null;
try
{
Log("Given I have a WorkCenter Dispatch Publisher");
var publisher = new WcDispatchPublisher(ConnectionString);
Log("And I have multiple server nodes subscribed to the backplane");
nodeA = new SubsciberTestServerNode("nodeA").Start().Result;
nodeB = new SubsciberTestServerNode("nodeB").Start().Result;
Log("And I wait 5 seconds");
Thread.Sleep(5000);
Log("When I publish a message: {0}", TestPayload);
publisher.Publish(TestPayload);
Log("And I wait 60 seconds");
Thread.Sleep(TimeSpan.FromSeconds(60));
messageA = nodeA.Message;
messageB = nodeB.Message;
}
catch (AggregateException exception)
{
Log("Exception Occurred: {0}", exception.Flatten().Message);
Exception = exception;
}
catch (Exception exception)
{
Log("Exception Occurred: {0}", exception.Message);
Exception = exception;
}
finally
{
nodeA?.Dispose();
nodeB?.Dispose();
Log("Then no exceptions should have been thrown.");
Exception.Should().BeNull();
Log("Then the message should have been added to the Message Queue");
messageA.Should().NotBeNullOrWhiteSpace();
messageB.Should().NotBeNullOrWhiteSpace();
}
服务器：
internal class SubsciberTestServerNode : IDisposable
{
private readonly string _nodeName;
private readonly string _url;
private WcDispatchSubscriber _subscriber;
private IDisposable _webApp;
public SubsciberTestServerNode(string nodeName)
{
_nodeName = nodeName;
_url = $"http://localhost:9999/{nodeName}";
MessageList = new List<string>();
}
public string Message { get; set; }
public List<string> MessageList { get; set; }
public void Dispose()
{
if (_webApp != null)
{
_webApp.Dispose();
_webApp = null;
_subscriber.Dispose();
_subscriber = null;
}
}
public async Task<SubsciberTestServerNode> Start()
{
_webApp = WebApp.Start(_url, app =>
{
new Startup(_nodeName).Configuration(app);
Thread.Sleep(TimeSpan.FromSeconds(5));
//Place this code into your Application_Start() method.
var factory = new ConnectionFactory
{
UserName = "guest",
Password = "guest",
HostName = "localhost"
};
var exchangeName = "WC_LeadDispatch_Exchange";
var configuration = new RabbitMqScaleoutConfiguration(factory, exchangeName);
GlobalHost.DependencyResolver.UseRabbitMq(configuration);
GlobalHost.Configuration.TransportConnectTimeout = TimeSpan.FromSeconds(10);
Thread.Sleep(TimeSpan.FromSeconds(5));
});
_subscriber = new WcDispatchSubscriber();
await _subscriber.Subscribe(_url, msg =>
{
string message = $"Message received at Node: {_nodeName}. Message: {msg}.";
Console.WriteLine(message);
Message = message;
MessageList.Add(message);
});
return this;
}
}
订户：
public class WcDispatchSubscriber : IDisposable
{
private const string HubName = "DispatchUpdateHub";
private const string MessageEventName = "addMessage";
private readonly int _connectionLimitInt;
private IDisposable _hubProxySubscription;
public WcDispatchSubscriber()
{
string connectionLimit = ConfigurationManager.AppSettings.Get("SignalRConnectionLimit");
int.TryParse(connectionLimit, out _connectionLimitInt);
_connectionLimitInt = _connectionLimitInt == 0 ? 100 : _connectionLimitInt;
}
public void Dispose()
{
_hubProxySubscription.Dispose();
}
public async Task Subscribe(string hubConnectionString, Action<string> messageReceived)
{
var hubConnection = new HubConnection(hubConnectionString);
IHubProxy dispatchHubProxy = hubConnection.CreateHubProxy(HubName);
_hubProxySubscription = dispatchHubProxy.On(MessageEventName, messageReceived);
ServicePointManager.DefaultConnectionLimit = _connectionLimitInt;
await hubConnection.Start();
}
}
出版商：
public class WcDispatchPublisher
{
private const string ExchangeName = "WC_LeadDispatch_Exchange";
private readonly IHubContext _hubContext;
public WcDispatchPublisher(string connectionString)
{
//actual string will look like this. we may need to overload the other constructors in the Rabbit/SigR.
//_rabbitConnectionString =
// "host=cprmqsrvt02vn01:5672;publisherConfirms=true;username=unittest;password=Un1t735t;virtualhost=UnitTest-NotificationService";
var configuration = new RabbitMqScaleoutConfiguration(connectionString, ExchangeName);
GlobalHost.DependencyResolver.UseRabbitMq(configuration);
_hubContext = GlobalHost.ConnectionManager.GetHubContext<DispatchUpdateHub>();
}
/// <summary>
/// </summary>
/// <param name="payload"></param>
public void Publish(string payload)
{
Task.Factory.StartNew(() =>
{
_hubContext.Clients.All.addMessage(payload);
}).Wait();
}
}
每次说第12次左右都会有效，通常是我得到的结果：
Given I have a WorkCenter Dispatch Publisher
And I have multiple server nodes subscribed to the backplane
And I wait 5 seconds
When I publish a message: test-payload
And I wait 60 seconds
Message received at Node: nodeA. Message: test-payload.
Message received at Node: nodeB. Message: test-payload.
Message received at Node: nodeB. Message: {"LeadId":37252,"DispatchId":153595,"NotificationTypeId":1,"NotificationTitle":" Leads Dispatch","DispatchDateTime":"2016-06- 16T17:16:26.187","AlertMessage":"Lead number 37252 dispatched 6/16/2016 at 7:16 AM CST","DispatchedToFranchise":5576,"FranchiseOpsId":130}.
Message received at Node: nodeB. Message: {"LeadId":37252,"DispatchId":153595,"NotificationTypeId":1,"NotificationTitle":" Leads Dispatch","DispatchDateTime":"2016-06- 16T17:16:26.187","AlertMessage":"Lead number 37252 dispatched 6/16/2016 at 7:16 AM CST","DispatchedToFranchise":5576,"FranchiseOpsId":130}.
Message received at Node: nodeB. Message: {"LeadId":37252,"DispatchId":153595,"NotificationTypeId":1,"NotificationTitle":" Leads Dispatch","DispatchDateTime":"2016-06- 16T17:16:26.187","AlertMessage":"Lead number 37252 dispatched 6/16/2016 at 7:16 AM CST","DispatchedToFranchise":5576,"FranchiseOpsId":130}.
Message received at Node: nodeB. Message: {"LeadId":37252,"DispatchId":153595,"NotificationTypeId":1,"NotificationTitle":" Leads Dispatch","DispatchDateTime":"2016-06- 16T17:16:26.187","AlertMessage":"Lead number 37252 dispatched 6/16/2016 at 7:16 AM CST","DispatchedToFranchise":5576,"FranchiseOpsId":130}.
Message received at Node: nodeB. Message: {"LeadId":37252,"DispatchId":153595,"NotificationTypeId":1,"NotificationTitle":"Leads Dispatch","DispatchDateTime":"2016-06-16T17:16:26.187","AlertMessage":"Lead number 37252 dispatched 6/16/2016 at 7:16 AM CST","DispatchedToFranchise":5576,"FranchiseOpsId":130}.
Message received at Node: nodeB. Message: {"LeadId":37252,"DispatchId":153595,"NotificationTypeId":1,"NotificationTitle":"Leads Dispatch","DispatchDateTime":"2016-06-16T17:16:26.187","AlertMessage":"Lead number 37252 dispatched 6/16/2016 at 7:16 AM CST","DispatchedToFranchise":5576,"FranchiseOpsId":130}.
......继续像这样永远
答案 0 :(得分：1)
在我的脑海中，我会说尝试：
nodeA = new SubsciberTestServerNode("nodeA").Start().Wait();
nodeB = new SubsciberTestServerNode("nodeB").Start().Wait();
或
nodeA = await new SubsciberTestServerNode("nodeA").Start();
nodeB = await new SubsciberTestServerNode("nodeB").Start();
结果是一个线程阻塞调用，因此可能会阻止nodeA触发。