Could not user SnapshotCollector 1.4.2 in production WebApp about applicationinsights-snapshotcollector HOT 9 OPEN

Hi @alexmanie,

Sorry for the delay, right now I'm working on building a repro scenario, I'm almost there, as soon as I completed, I can provide the resolution to you as simple as possible.

Expect later today my reply on this thread.

Thanks for your patience,
Renato

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@aolszowka please see:
https://docs.microsoft.com/azure/azure-monitor/snapshot-debugger/snapshot-debugger-troubleshoot#check-the-diagnostic-services-site-extension-status-page

from applicationinsights-snapshotcollector.

Thanks for the report, @alexmanie.
@renatosalas could you please take a look?

We have to use reflection to find the AddApplicationInsightsTelemetryProcessor method (so that it works in WorkerService and codeless scenarios), and I suspect we're selecting the wrong assembly.

@alexmanie I think you can work around this by replacing AddSnapshotCollector with:

services.AddApplicationInsightsTelemetryProcessor<SnapshotCollectorTelemetryProcessor>();

from applicationinsights-snapshotcollector.

Hi @alexmanie ,

Could you help us check what Application Insights SDK version ended up in your wwwroot folder inside Kudu, please?

Here are some docs to how to access to Kudu: https://docs.microsoft.com/azure/app-service/resources-kudu#access-kudu-for-your-app

You can download the Microsoft.ApplicationInsights.dll file from Kudu and open it using ILSpy tool (https://www.microsoft.com/p/ilspy/9mxfbkfvsq13)

The expected version of Application Insights SDK by Snapshot Collector is greater or equal than 2.15.0

If the version of the Application Insights SDK is different (< 2.15.0), maybe there might be some build process overridden that assembly, just to isolated old/stale assemblies, could you delete the wwwroot and re-deploy your app; make a clean deployment?

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Hi @renatosalas ,
Micosoft.ApplicationInsights.dll seems to be the expected version 2.20.0.103

What else can I check ?

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@renatosalas @pharring adding extended information from WebApp Diagnostic Services tool:

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Hi @alexmanie ,

Thanks for your patience,

I was able to reproduce the issue when the "Interop" option was enabled and the Snapshot Collector SDK in your app was referenced; if you disable that option, everything should work as expected. Does this sounds the case; Interop enabled?

You can check by:

1. Go to your App Service resource (WebApp)
2. Select on the left side bar "Application Insights"
3. On the right page, select the ".NET Core" tab
4. Select "Off" option

Before (current customer state)

After

Let us know if that works for you and Snapshot Collector is working fine.

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Hi @renatosalas ,

Thanks for your answer. I did it, combined with uninstalling "" from my source code project, and seems Snapshot Collector is currently properly configured as per Diagnostic Services:

Unfortunately, no Snapshots are seeing in the portal.
I did a troubleshoot to see what's happening, and I get that message:

How can I workaround with that?
As my application is an AspNet Core webapp, I don't have an ApplicationInsights.config file to modify.

Thanks in advance.

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@alexmanie sorry to derail this; but I believe I am seeing similar behavior, can you tell me how you accessed the scm /DiagnosticServices diagnostics dialog in your screenshots so I can duplicate on my end?

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