I've just started using Apache Storm. I saw a lot of examples that call `emit()` in Bolt. I understand that calling `emit()` in Spout means that the spout will send the data to the next bolt or bolts.
However, would that be the same case for emitting in Bolts? If my bolt is to just write the data to S3 as log and there's nothing after the bolt. Do I need to call `emit()` again?
