PersistentConnection connection limit 800 RSS

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  datikos1

  Member

  2 Points

  3 Posts

  PersistentConnection connection limit 800

  Jan 25, 2013 09:36 PM|LINK

  I have a simple self hosted server. when connections reached 800, server does not accepting more connections.

  ServicePointManager.DefaultConnectionLimit = Int32.MaxValue;
              
                 
              string url = "http://localhost:8080";
               
              using (Microsoft.Owin.Hosting.WebApplication.Start<Startup>(url))
              {
                  Console.WriteLine("Server running on {0}", url);
  
                  Console.ReadLine();
  
              }

  error is: An existing connection was forcibly closed by the remote host

  how to increase connection limit?

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  DamianEdward...

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  234 Points

  37 Posts

  Microsoft

  Re: PersistentConnection connection limit 800

  Jan 28, 2013 05:59 PM|LINK

  This doesn't appear to be a SignalR question per se. Am I missing something?

  Damian Edwards
  Senior Program Manager, ASP.NET
  Microsoft
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  datikos1

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  3 Posts

  Re: PersistentConnection connection limit 800

  Jan 28, 2013 08:41 PM|LINK

  Damian,

  self hosting example, I found out in signalr documentation using Owin. is any way to host it without Owin? how i can configure Owin to accept more connections?

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  Tratcher

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  2 Posts

  Re: PersistentConnection connection limit 800

  Jan 28, 2013 09:50 PM|LINK

  Microsoft.Owin.Host.HttpListener (and Microsoft.Owin.Host.HttpSys) has a default concurrent request processing limit of 100 x CPU count.  You can change this on the OwinHttpListener by calling SetPumpLimits(maxAccepts, maxPending).

  You can get to the OwinHttpListener instance at IAppBuilders.Properties["Microsoft.Owin.Host.HttpListener.OwinHttpListener"] durring your startup config.

  • Marked as answer by datikos1 on Jan 29, 2013 09:26 AM
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  Tratcher

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  Re: PersistentConnection connection limit 800

  Jan 28, 2013 10:35 PM|LINK

  More context based on this selfhost sample: https://github.com/SignalR/SignalR/wiki/Self-host

  class Startup
      {
          public void Configuration(IAppBuilder app)
          {
              OwinHttpListener listener = (OwinHttpListener)app.Properties[typeof(OwinHttpListener).Name];
              listener.SetPumpLimits(maxAccepts, maxPending);
  
              app.MapHubs();
          }
      }

  FYI: OwinHttpListener is just now being stabalized, and there are some known issues in the message pump that have been fixed.

   

   

  • Marked as answer by datikos1 on Jan 29, 2013 09:26 AM
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  datikos1

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  Re: PersistentConnection connection limit 800

  Jan 29, 2013 09:29 AM|LINK

  thank you Tratcher. 

  I lost a lot of time to overcome it.