Snapshot debugging does not work with Azure function in Consumption tier

Question

I have enabled snapshot debugging by adding this in the host.json file in the azure function and redeploying the function app:

{
"version": "2.0",
"logging": {
"applicationInsights": {
"snapshotConfiguration": {
"isEnabled": true
}
}
}
}

according the docs: https://learn.microsoft.com/da-dk/azure/azure-monitor/app/snapshot-debugger-function-app

However even though I can see the exception I generated and the end to end transaction, the button to see snapshot debug is not visible, even though I have waited 10 minutes for the debug snapshot to be created:

I have also tried adding the nuget package: Microsoft.ApplicationInsights.SnapshotCollector.

However it still does not work.

Can you advise how to fix this?

Answer 1

Hi @Casper Rubæk

Sharing previous discussion on the same.
As mentioned in the document Snapshot Debugger currently works for ASP.NET and ASP.NET Core apps that are running on Azure Functions on Windows Service. We recommend you run your application on the Basic service tier or higher when using Snapshot Debugger.

Let me know if you have any queries or concerns.

Answer 2

For anyone with this problem, please add your vote on this feature request I have created for both Consumption and Premium hosting plans to use snapshot debugging:

https://feedback.azure.com/forums/355860-azure-functions/suggestions/43771764-snapshot-de