SignalR - Streaming behavior while reconnecting

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SignalR - Streaming behavior while reconnecting

Max 21

Hello everyone,

I am trying to understand how the SignalR .NET client handles running streams and RPCs while being in reconnecting state. I couldn't find something in the docs helping me. Is there any information available?

The main question is if SignalR queues the messages and transmitts them when the reconnect is finished or will they get dropped?

Thanks in advance!

Ryan Hill 30,326 Reputation points Microsoft Employee Moderator

2021-04-13T00:20:21.133+00:00

@Max which SignalR are you asking about, .NET or .NET Core? Client hosted or Azure service?
Anonymous

2021-04-13T05:19:54.327+00:00

Hi @Max , I am not sure if you are asking about what happens if transmission disconnection occurs in Signalr.
If this is the case, have you read Understanding and Handling Connection Lifetime Events in SignalR ? If it's something else, could you describe more relevant details?
Max 21 Reputation points

2021-04-14T06:17:55.53+00:00

@Ryan Hill I am talking about the .NET Core Client (SignalR3) and I am not using the Azure Service.

@Anonymous I am trying to understand what is happening if the client is in reconnecting state. When I am streaming data to a server and the client switches to reconnecting state, will the stream items get queued or will these messages be dropped? The docs you mentioned is for SignalR2, the .NET Framework implementation.. I need Information for SignalR3 (.NET Core).

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Ryan Hill 30,326 Reputation points Microsoft Employee Moderator

2021-04-13T00:20:21.133+00:00

@Max which SignalR are you asking about, .NET or .NET Core? Client hosted or Azure service?
Anonymous

2021-04-13T05:19:54.327+00:00

Hi @Max , I am not sure if you are asking about what happens if transmission disconnection occurs in Signalr.
If this is the case, have you read Understanding and Handling Connection Lifetime Events in SignalR ? If it's something else, could you describe more relevant details?
Max 21 Reputation points

2021-04-14T06:17:55.53+00:00

@Ryan Hill I am talking about the .NET Core Client (SignalR3) and I am not using the Azure Service.

@Anonymous I am trying to understand what is happening if the client is in reconnecting state. When I am streaming data to a server and the client switches to reconnecting state, will the stream items get queued or will these messages be dropped? The docs you mentioned is for SignalR2, the .NET Framework implementation.. I need Information for SignalR3 (.NET Core).

Answer 1

Ryan Hill 30,326 Microsoft Employee Moderator

Hi @Max ,

Thank you for the clarification. For client slide, .NET Core version doesn't buffer any messages and therefore are dropped. You'll have to resend any messages that were in transit once the connection is reestablished.

Regards,
Ryan

Max 21 Reputation points

2021-04-19T06:26:15.45+00:00

Thanks for your help! :)

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SignalR - Streaming behavior while reconnecting

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