spanmetrics: Add a default namespace #32818
Description
Component(s)
connector/spanmetrics
Is your feature request related to a problem? Please describe.
calls and duration are the default metrics output by the spanmetrics connector. They are pretty bad default names imo, and converting them into Prometheus yields calls_total and duration_seconds_.* which are also pretty bad.
It is different in servicegraph connector with traces_service_graph_request_total . It's just a better metric name.
Describe the solution you'd like
Make traces.span.metrics as the default for namespace , so the metrics end up being traces_span_metrics_calls_total.
Describe alternatives you've considered
No response
Additional context
No response