MQTT Channel is Closed / Migrating Sample to .net8 caused an issue

Azure / azure-iot-sdk-csharp

A C# SDK for connecting devices to Microsoft Azure IoT services

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MQTT Channel is Closed / Migrating Sample to .net8 caused an issue #3440

Closed codeputer closed 6 months ago

codeputer commented 7 months ago

See attached screen shot of the repo that I'm using.

i did have some stable code, running for at least 8 months, in which I was using DPS (ProvisioningClient) to provision an IOT device. when I upgraded to .Net8, my testing revealed an error.

I got this sample working as is (.net6) , but used my DPS and IOT service credentials. Then I upgraded the transport and the provisioning client to current versions, and .Net8, and got the following error without any other changes made to the repo.

I then downgraded to versions in this repo (not sure which NUGET, as I ran out of time) the error disappeared!

Following is a more detailed shot the call stack and error generated - it takes at least 40 seconds or so before it fails.

I'm on production issue, and I'm now rolling back to get this working.

codeputer commented 7 months ago

Using the sample project from the repo, I made two changes. changed the project to .Net8, and updated the Microsoft.Azure.Devices.Client library from 1.41.2 to 1.42.2 - and it broke the RegisterAsync() method - MQTT Socket Closed after about 40 seconds. Change it back to 1.41.2, and it worked

codeputer commented 7 months ago

Need help on this one as its a production issue for me - will try to work around by downgrading my application.

timtay-microsoft commented 6 months ago

This is likely a dup of #3413. The latest dotnetty library has some compatibility issues with .NET 8 that we are aware of and are working on

timtay-microsoft commented 6 months ago

Closing as dup

codeputer commented 6 months ago

Oh good...that took three days out of my life. Client not happy with the instability.

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From: Tim Taylor @.> Sent: Monday, March 11, 2024 11:47:43 AM To: Azure/azure-iot-sdk-csharp @.> Cc: Richard Reukema @.>; Author @.> Subject: Re: [Azure/azure-iot-sdk-csharp] MQTT Channel is Closed / Migrating Sample to .net8 caused an issue (Issue #3440)

Closed #3440https://github.com/Azure/azure-iot-sdk-csharp/issues/3440 as completed.

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