Github user zhijiangW commented on the issue:
https://github.com/apache/flink/pull/4509
@NicoK , thanks for your reviews!
Actually there are still two PRs under submitted before this PR. One is for
floating buffer interaction between `RemoteInputChannel` and `BufferPool`, the
other is `onSenderBacklog` logic in `RemoteInputChannel`.
I will submit both of them this week and also rebase this PR based on your
comments.---
