【opentelemetry-sdk】BatchSpanProcessor exit before spawn task finish?

[jonefeewang]

Regarding the opentelemetry-sdk project, I have a query. Since the BatchSpanProcessor creates tasks to export spans using tokio spawn, is it possible that these spawned asynchronous tasks might not be completed before the main function exits, even after executing opentelemetry::global::shutdown_tracer_provider();, resulting in spans not being fully dispatched?

In practice, I encountered this issue and delved into the code, which led to this concern. If my understanding is incorrect, please correct me.