[BUG] - Error from Ingestion: 100: Field 'ai.internal.sdkVersion' on type 'ContextTagKeys' is too long.

[makinsc]

Library name and version

Azure.Monitor.OpenTelemetry.Exporter

Describe the bug

Hello, I am receiving this error message in telemetry:
OpenTelemetry-AzureMonitor-Exporter - EventId: [8], EventName: [TransmissionFailed], Message: [Transmission failed. StatusCode: 400. Error from Ingestion: 100: Field 'ai.internal.sdkVersion' on type 'ContextTagKeys' is too long. Expected: 64 characters. Action: Telemetry is dropped. Origin: AzureMonitorLogExporter. Instrumentation Key: 022071e5-8639-4cb1-94fd-7097c92eea95. Configured Endpoint: https://westeurope-5.in.applicationinsights.azure.com/. Current Endpoint: westeurope-5.in.applicationinsights.azure.com]

The traces that are trying to send to Azure Monitor is this:
{"name":"Metric","time":"2023-07-21T11:51:45.2308956Z","iKey":"022071e5-8639-4cb1-94fd-7097c92eea95","tags":{"ai.cloud.role":"unknown_service:dotnet","ai.cloud.roleInstance ":"ES-PF38955J","ai.internal.sdkVersion":"dotnet4.6.30411.01 @BuiltBy: AzDevOps-vs2017b17000759 @Branch: release/2.1-MSRC @srccode: https://github.com/dotnet/coreclr/tree/f6b4d10f1b98 94c9336c514c7ee6cff5c82535fe:otel1.5.1:ext1.0.0-beta.13"},"data":{"baseType":"MetricData","baseData":{"metrics":[{"name":"process.runtime.dotnet.gc.collections.count","value":0}],"pro perties":{"generation":"gen2"},"ver":2}}}

as can be seen, the value of ai.internal.sdkVersion is too long.

I am integrating it into a netcore 2.1 project and the list of added packages are the following:
OpenTelemetry" Version="1.5.1"
OpenTelemetry.Extensions.Hosting" Version="1.5.1"
OpenTelemetry.Instrumentation.AspNetCore" Version="1.5.0-beta.1"
OpenTelemetry.Instrumentation.Http" Version="1.5.0-beta.1"
OpenTelemetry.Instrumentation.Runtime" Version="1.5.0"
Azure.Monitor.OpenTelemetry.AspNetCore" Version="1.0.0-beta.5"
The configuration is the following:

var resourceBuilder = ResourceBuilder.CreateDefault()
             // add attributes for the name and version of the service
             .AddService("MyService-API", serviceVersion: "1.0.0")
             // add custom attributes
             .AddAttributes(new Dictionary<string, object>
             {
                 ["host.name"] = System.Environment.MachineName,
                 ["os.description"] = RuntimeInformation.OSDescription,
                 ["deployment.environment"] = Environment.EnvironmentName.ToLowerInvariant(),
             }) ;

             services.AddOpenTelemetry().UseAzureMonitor(opt=>opt.ConnectionString = "InstrumentationKey=XXXX")
             .WithTracing(builder => builder.SetSampler(new TraceIdRatioBasedSampler(0.6))
             .AddAspNetCoreInstrumentation()
                 .AddHttpClientInstrumentation()
                 .AddSource("MyService-API")
                 .SetResourceBuilder(
                     resourceBuilder)
                 )
             .WithMetrics(b
             => b.AddAspNetCoreInstrumentation()
             .AddMeter("Microsoft.AspNetCore.Hosting")
             .AddMeter("Microsoft.AspNetCore.Server.IISIntegration")
             .AddRuntimeInstrumentation()
              
                 );
                 }

Expected behavior

Telemetry is successfully sent to Azure Application Insight

Actual behavior

traces, metrics and logs are not being sent to Azure Application Insight

Reproduction Steps

Create api project with NetCore 2.1
Add the packages mentioned in the description
Add configuration on Startup.cd class mentioned in the description.
Run application.

Environment

Runtime Environment:
OS Name: Windows
OS Version: 10.0.19045
OS Platform: Windows
RID: win10-x64

NET CORE 2.1
Visual Studio 2022 V17.5.4

[github-actions]

Thank you for your feedback. This has been routed to the support team for assistance.

[TimothyMothra]

Thank you for reporting this!

I've never seen a dotnet version string like that before! Are you doing anything unique or custom with your .NET runtime?

"dotnet4.6.30411.01 @BuiltBy: AzDevOps-vs2017b17000759 @Branch: release/2.1-MSRC @srccode: https://github.com/dotnet/coreclr/tree/f6b4d10f1b98 94c9336c514c7ee6cff5c82535fe"

[github-actions]

Hi @makinsc. Thank you for opening this issue and giving us the opportunity to assist. To help our team better understand your issue and the details of your scenario please provide a response to the question asked above or the information requested above. This will help us more accurately address your issue.

[makinsc]

Hi @TimothyMothra , thanks for your quick response. Nothing special in my .NET Runtime neither my API core 2.1 project.
Any idea what can I review in order to understand this SDK Version? Any idea how can we solve this problem? Thanks in advance.

[navba-MSFT]

@makinsc The PR #37807 has been filed by @TimothyMothra to fix this. It is currently under review.