Github user sihuazhou commented on the issue:
https://github.com/apache/flink/pull/5982
@StephanEwen After thinking your comments again, I think I misunderstood
the `Also, we need this method to be implemented in all FileSystem subclasses.`
ð , I will address that. But the question related to
`TwoPhaseFsDataoutputStream` still a bit confuse to me...---
