What is the meaning of the label service_version for the OpenTelemetry internal metrics.

[Yumin-Sun-00]

Dear all,

I am recently getting confusing with one label "service_version": this is how it looks like and how many different values there are in our system:

From this screenshot, you should notice this dimension or label, belongs to the OpenTelemetry internal metrics, or maybe the processor add extra label to it, I am not sure, but this label is used for internal metrics for sure.

At the beginning I thought service_version seems like to be the splunk otel collector version. But then later I realize, after I upgrade the collector, the service_version remains the same.

Would that be possible this dimension "service_version" is the verson when you first time install them, and later if you upgrade, this dimension's value never change?

My second question is how could I know then what kind of version I am using for my collector?

Kind regards, Yumin