I have a web service that is not logging exceptions in Application Insights

Question

I have a web service that is not logging exceptions in Application Insights

Tim C 0

I have several web services logging telemetry to application insights. All of them except one are working as expected. One of them is not logging any exceptions. We know there are exceptions as we have Serilog writing them to a sql table. All of our web services are configured the same way. All of the others are reporting exceptions fine.

I have checked the connection string, and the referenced application insights package versions. Here is info about the current setup:

App service: .Net 7

Visual Studio: Microsoft Visual Studio Professional 2022 Version 17.7.4

Packages:

Microsoft.ApplicationInsights.AspNetCore - 2.21.0
Microsoft.ApplicationInsights.DependencyCollector - 2.21.0

Ryan Hill 30,281 Reputation points Microsoft Employee Moderator

2023-10-12T20:27:51.4766667+00:00

@Tim C can you share any self-diagnostic logs?
Tim C 0 Reputation points

2023-10-16T19:33:12.39+00:00

Ryan, I would, but I am unfamiliar with how to generate them. Could you link me instructions on how to do so? I also googled for that, but sadly Azure and its documentation are sadly out of synch.
Ryan Hill 30,281 Reputation points Microsoft Employee Moderator

2023-10-17T14:29:04.1633333+00:00
Sure @Tim C . Have a look at How to collect self-diagnostic logs for Application Insights SDKs. Create/update the ApplicationInsightsDiagnostics.json file with the following:

{ "LogDirectory": ".", "FileSize": 1024, "LogLevel": "Verbose" }

Check for the file in the app service working directory, on a Windows plan this would D:\home\site\wwwroot.

Also review Troubleshoot no data: Application Insights for .NET and .NET Core as it contains most likely causes of missing data and how to resolve it.

Let me know.
Tim C 0 Reputation points

2023-10-18T14:52:30.58+00:00

TY Ryan, I am getting this set up for our prod system. I had to engage ops to be able to drop that file on there temporarily.
Tim C 0 Reputation points

2023-10-18T15:02:35.46+00:00

I have a file for you, but it contains server and database information, can I email this to you?

EDIT: NVM, I can scrub it. Will post here in a bit.
Tim C 0 Reputation points

2023-10-18T15:30:07.7433333+00:00

Here is the scrubbed file 20231018-145352.w3wp.exe.18012.log
Ryan Hill 30,281 Reputation points Microsoft Employee Moderator

2023-10-20T17:07:46.1066667+00:00

Thanks @Tim C . Are you receiving telemetry when your app interacts with your database server? Only the exceptions are missing?
Tim C 0 Reputation points

2023-10-24T14:15:54.2133333+00:00

Correct, only the exceptions are missing, but telemetry events are logging 2x. Here is what I mean. After the initial event, every event is duplicated. Each of those events in the red boxes below are duplicates of each other.

Your answer

Ryan Hill 30,281 Reputation points Microsoft Employee Moderator

2023-10-12T20:27:51.4766667+00:00

@Tim C can you share any self-diagnostic logs?
Tim C 0 Reputation points

2023-10-16T19:33:12.39+00:00

Ryan, I would, but I am unfamiliar with how to generate them. Could you link me instructions on how to do so? I also googled for that, but sadly Azure and its documentation are sadly out of synch.
Ryan Hill 30,281 Reputation points Microsoft Employee Moderator

2023-10-17T14:29:04.1633333+00:00

Sure @Tim C . Have a look at How to collect self-diagnostic logs for Application Insights SDKs. Create/update the ApplicationInsightsDiagnostics.json file with the following:

{ "LogDirectory": ".", "FileSize": 1024, "LogLevel": "Verbose" }

Check for the file in the app service working directory, on a Windows plan this would D:\home\site\wwwroot.

Also review Troubleshoot no data: Application Insights for .NET and .NET Core as it contains most likely causes of missing data and how to resolve it.

Let me know.
Tim C 0 Reputation points

2023-10-18T14:52:30.58+00:00

TY Ryan, I am getting this set up for our prod system. I had to engage ops to be able to drop that file on there temporarily.
Tim C 0 Reputation points

2023-10-18T15:02:35.46+00:00

I have a file for you, but it contains server and database information, can I email this to you?

EDIT: NVM, I can scrub it. Will post here in a bit.
Tim C 0 Reputation points

2023-10-18T15:30:07.7433333+00:00

Here is the scrubbed file 20231018-145352.w3wp.exe.18012.log
Ryan Hill 30,281 Reputation points Microsoft Employee Moderator

2023-10-20T17:07:46.1066667+00:00

Thanks @Tim C . Are you receiving telemetry when your app interacts with your database server? Only the exceptions are missing?
Tim C 0 Reputation points

2023-10-24T14:15:54.2133333+00:00

Correct, only the exceptions are missing, but telemetry events are logging 2x. Here is what I mean. After the initial event, every event is duplicated. Each of those events in the red boxes below are duplicates of each other.

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I have a web service that is not logging exceptions in Application Insights

Your answer