Constant OTEL_SDK_SPAN_STARTED 

pub const OTEL_SDK_SPAN_STARTED: &str = "otel.sdk.span.started";

Description

The number of created spans

Notes

Implementations MUST record this metric for all spans, even for non-recording ones

Metadata

Instrument:	counter
Unit:	{span}
Status:	Development

Attributes

Name	Requirement
crate::attribute::OTEL_SPAN_PARENT_ORIGIN	Recommended
crate::attribute::OTEL_SPAN_SAMPLING_RESULT	Recommended