C#•11mo ago

AspNet.Core OpenTelemetry AzureMonitorLogExporter doesn't include ILogger name in AppInsight traces.

ILogger log messages get written to app insights but there is some info missing compared to writing to for example file or console. Console: InternalApi.DashboardController: Information: This is a info App insights: Does not contain any additional infromation except the LogLevel and the message. Can I somehow add more information to the traces or do i need to use Microsoft.ApplicationInsights.AspNetCore if i want that?

10 Replies

Unknown User•11mo ago

Message Not Public

nickeOP•11mo ago

really simple

                builder.Logging.AddOpenTelemetry(x =>
                {
                    x.SetResourceBuilder(
                        ResourceBuilder.CreateDefault()
                            .AddService("Frends-Management"));
                    x.IncludeFormattedMessage = true;

                    x.AddAzureMonitorLogExporter(options =>
                    {
                        options.ConnectionString = settings.ApplicationInsights.ConnectionString;
                        // Do not sample logs
                        options.SamplingRatio = 1F;
                    });
                });

                builder.Logging.AddOpenTelemetry(x =>
                {
                    x.SetResourceBuilder(
                        ResourceBuilder.CreateDefault()
                            .AddService("Frends-Management"));
                    x.IncludeFormattedMessage = true;

                    x.AddAzureMonitorLogExporter(options =>
                    {
                        options.ConnectionString = settings.ApplicationInsights.ConnectionString;
                        // Do not sample logs
                        options.SamplingRatio = 1F;
                    });
                });

And looks like this under traces when i use _logger.LogWarning... where the ILogger is injected from the constructor.

Unknown User•11mo ago

Message Not Public

nickeOP•11mo ago

Yeah i've debugged that part of the code and the generated telemetryItems only contain the message and the log level But i'll probably just use the classic ApplicationInsights library as there it seems to work oob

Unknown User•11mo ago

Message Not Public

nickeOP•11mo ago

The customDimensions are populated from the actual log message when using composite formatting Just not stuff like line number, Logger name, file name etc

nickeOP•11mo ago

https://learn.microsoft.com/en-us/azure/azure-monitor/app/opentelemetry-add-modify#add-a-custom-property-to-a-span Maybe it needs to be done manually with a processor like this

Add, modify, and filter Azure Monitor OpenTelemetry for .NET, Java,...

This article provides guidance on how to add, modify, and filter OpenTelemetry for applications using Azure Monitor.

nickeOP•11mo ago

Okey, that seems to only work for traces and metrics

nickeOP•11mo ago

Same trace using the Microsoft.ApplicationInsights.AspNetCore with AddApplicationInsightsTelemetry()

Unknown User•11mo ago

Message Not Public

Gaming

Programming

AspNet.Core OpenTelemetry AzureMonitorLogExporter doesn't include ILogger name in AppInsight traces.