Open bogdandrutu opened 3 years ago
Copying from Slack to make sure it's not lost: OM considers it non-breaking, but not something that should happen frequently: https://github.com/OpenObservability/OpenMetrics/blob/main/specification/OpenMetrics.md#exposition-across-time-and-metric-evolution
We discussed this in the Metrics Data Model SiG.
We had talked about a notion of "weak conformance" that allows migrating int to double when this situation occurs. Specification remains TBD.
Define if it is an error or not to receive for the same "Resource, InstrumentationLibrary, MetricName, Labels/Attributes, StartTime" first point with
int value
and next point withdouble value
.We need to document this behavior.