article Service shown as Requests executed in background threads (Microsoft.AspNetCore.Hosting.HttpRequestIn) in Troubleshooting

Service shown as Requests executed in background threads (Microsoft.AspNetCore.Hosting.HttpRequestIn)

Vineet_Sinha — Wed, 06 Sep 2023 06:55:36 GMT

If instead of usual service detection over a .NET process, you are getting Requests executed in background threads (Microsoft.AspNetCore.Hosting.HttpRequestIn)

Try out below options to rectify it .

1) Create a span exclusion rule as expalined below:

2) Disabling the feature (OpenTelemetry (.NET) [Opt-In])

Thanks

Re: Service shown as Requests executed in background threads (Microsoft.AspNetCore.Hosting.HttpRequestIn)

ChadTurner — Thu, 07 Sep 2023 12:35:46 GMT

Thanks for sharing this!

Re: Service shown as Requests executed in background threads (Microsoft.AspNetCore.Hosting.HttpRequestIn)

DH — Tue, 20 Feb 2024 21:28:11 GMT

Thanks for sharing this. We recently enabled the OpenTelemetry and discovered that it broke a number of our dashboards. Support couldn't help but your info above got us back up and working by disabling this feature.

Re: Service shown as Requests executed in background threads (Microsoft.AspNetCore.Hosting.HttpRequestIn)

lukasz_luczko — Thu, 02 Jul 2026 14:53:51 GMT

Starting with OneAgent 339, the Microsoft.AspNetCore.Hosting.HttpRequestIn span is ignored by default:

.NET code module ignores OpenTelemetry spans for technologies supported by the module

The OneAgent .NET code module now automatically ignores OpenTelemetry spans for technologies supported by the OneAgent .NET code module.

https://docs.dynatrace.com/docs/whats-new/oneagent/sprint-339#net-code-module-ignores-opentelemetry-spans-for-technologies-supported-by-the-module