How to do guaranteed message delivery with SignalR?

by

SignalR doesn’t guarantee message delivery. Since SignalR doesn’t block when you call client methods, you can invoke client methods very quickly as you’ve discovered. Unfortunately, the client might not always be ready to receive messages immediately once you send them, so SignalR has to buffer messages.

Generally speaking, SignalR will buffer up to 1000 messages per client. Once the client falls behind by over 1000 messages, it will start missing messages. This DefaultMessageBufferSize of 1000 can be increased, but this will increase SignalR’s memory usage and it still won’t guarantee message delivery.

http://www.asp.net/signalr/overview/signalr-20/performance-and-scaling/signalr-performance#tuning

If you want to guarantee message delivery, you will have to ACK them yourself. You can, as you suggested, only send a message after the previous message has been acknowledged. You can also ACK multiple messages at a time if waiting for an ACK for each message is too slow.

More Related Contents:

  1. SignalR Console app example
  2. Call SignalR Core Hub method from Controller
  3. How to use signalr in Android
  4. How to implement real time data for a web page
  5. Get number of listeners, clients connected to SignalR hub
  6. Self hosted OWIN and urlacl
  7. Using WebSockets with ASP.NET Web API
  8. SignalR doesn’t use Session on server
  9. No access to the Session information through SignalR Hub. Is my design is wrong?
  10. Multiple signalR connections/hubs on your website
  11. Signalr/Hub not loading in IIS 7 but working correctly in Visual Studio
  12. SignalR – Checking if a user is still connected
  13. SignalR Typenamehandling
  14. How to pass data (and references) between scenes in Unity
  15. How to get the CPU Usage in C#?
  16. ASP.NET MVC: Custom Validation by DataAnnotation
  17. What is the proper way to rethrow an exception in C#? [duplicate]
  18. Checking for null before event dispatching… thread safe?
  19. Why use ‘virtual’ for class properties in Entity Framework model definitions?
  20. OLEDB Parameterized Query
  21. Image in WPF Button not Visible at Runtime
  22. how to delay shutdown and run a process in window service
  23. Sharing violation IOException while reading and writing to file C#
  24. c# marking class property as dirty
  25. C#: How to convert a list of objects to a list of a single property of that object?
  26. Put content in HttpResponseMessage object?
  27. Cookie Confusion with FormsAuthentication.SetAuthCookie() Method
  28. How to put an encoding attribute to xml other that utf-16 with XmlWriter?
  29. Static Linking of libraries created on C# .NET
  30. Upgrading old Unity code to Unity 5

Leave a Comment