Const ExperimentalFor successful processing, error.type MUST NOT be set. For failed processing, error.type MUST contain the failure cause.
SDK Batching Span Processors MUST use queue_full as the value of error.type for spans dropped due to a full queue.
SDK Span Processors MUST use already_shutdown as the value of error.type for spans dropped because the processor has already been shut down.
For the SDK Simple and Batching Span Processor a span is considered to be processed already when it has been submitted to the exporter, not when the corresponding export call has finished.
This metric is experimental and is subject to breaking changes in minor releases of @opentelemetry/semantic-conventions.
The number of spans for which the processing has finished, either successful or failed.