問題文
An operation queues an additional operation whose execution is asynchronous and whose start time cannot be predicted. The team wants to associate the trace of the later operation with the trace of the first. Which mechanism is intended for that?
選択肢
- Setting the parent identifier of the later span to the identifier of the earlier one, which places the asynchronous work inside the same trace as its cause.
- A span event with the identifier of the first trace in an attribute.
- Baggage, by carrying the identifier of the first trace to the later operation.
- A span link, which associates one span with one or more spans and implies a causal relationship.