dotnet-counters ps doesn't show any processes

Question

I have .NET Core 2.2 application and wanted to use dotnet-counters to get some data about GC. Unfortunately dotnet-counters doesn't see my app (.NET core process) for some reason. When I run

dotnet-counters ps

It returns nothing (my .NET core application is running of course). I use .NET Core version 2.2.8 and dotnet-counters version 3.1.57502. I tried both standalone and Framework dependend version of application.

Answer 1

The diagnostic tools (dotnet counters, dotnet trace, dotnet dump) rely on new features of the runtime exposing the necessary interfaces. These are only present on .NET Core 3.0 or higher.

This means that a .NET Core 2.2 application cannot be monitored / diagnosed with these tools. You will need to update your application to .NET Core 3.0+