how to use NumClients of crank

[aazjcom]

when i use the command:crank /NumClients:1 /Connections:1000 /Url:http://127.0.0.1:8088/signalr .it is ok.
but when i use the command:crank /NumClients:100 /Connections:1000 /Url:http://127.0.0.1:8088/signalr .it is System.AggregateException: ---> System.NullReferenceException: Microsoft.AspNet.SignalR.Client.HubConnection.GetUrl(String url, Boolean useDefaultUrl)
SignalR-dev\src\Microsoft.AspNet.SignalR.Client\HubConnection.cs: 216
Microsoft.AspNet.SignalR.Client.HubConnection..ctor(String url, Boolean useDefaultUrl) SignalR-dev\src\Microsoft.AspNet.SignalR.Client\HubConnection.cs: 38Microsoft.AspNet.SignalR.Client.HubConnection..ctor(String url)

[lightCraft2020]

me,to. I came across the same problem.

[moozzyk]

This is because when you have more than 1 client the ControllerUrl should be passed. The code does not check this and passes null when creating the hub (

SignalR/src/Microsoft.AspNet.SignalR.Crank/ControllerHub.cs

Line 66 in 1fba14f

AppHost = WebApp.Start<Startup>(Arguments.ControllerUrl);

) which results in the NullReferenceException you are seeing.