Metrics Processor

[Leonardo-Ferreira]

Feature Request

Is your feature request related to a problem?

Yes, I would like to filter metrics. For example, I would like to FILTER OUT metrics that are zero-ed, like "You received zero http requests" or "Your Http queue is zero"

Describe the solution you'd like:

builder.Services.AddOpenTelemetry()
     .ConfigureResource(cfg => cfg.AddAttributes(resourceAttributes))
     .WithMetrics(builder => builder.AddAspNetCoreInstrumentation()
          .AddRuntimeInstrumentation()
          .AddProcessInstrumentation()
       ***.AddPROCESSOR<MyCustomProcessor>()***

Additional Context

Having fine grain control over metric beings reported is very useful, specially if you are using solutions that charge you based on the volume of data you report

[cijothomas]

As mentioned in this doc, the notion of Metrics/MeasurementProcessor does not exist in OpenTelemetry specification. However, a new concept for Filtering is now an experimental spec. This repo has not implemented that capability yet, but hopefully that is what you are looking for.

[Leonardo-Ferreira]

yeah, that's close to what im looking for... I don't think that spec allows for filtering based on the value of the metric

[Leonardo-Ferreira]

I created a PR: open-telemetry/opentelemetry-specification#4025

[cijothomas]

yeah, that's close to what im looking for... I don't think that spec allows for filtering based on the value of the metric

I don't think that is what you need. I left comments in the spec PR asking for more clarification.