How to stop producing a metric defined with last_value

[colinsmetz]

Hello,

I have a question regarding the production of event-based metrics.

We use Event.build to define a few metrics using last_value. Those metrics are later created with :telemetry.execute(event_name, measurements, metadata).

Now we would like, at some point, to stop producing metrics to Prometheus for a given event_name and metadata. We already stop producing metrics with :telemetry.execute but because of the last_value, it keeps producing to prometheus with the latest value.

The only solutions we found are: restart the application (but it clears everything) and removing objects from ETS directly. None of these solutions are really satisfying. Is there a better approach that we have missed, or something wrong in the way we produce the metrics?