Github user tison1 commented on the issue:
https://github.com/apache/flink/pull/6345
OK. This PR is about performance improvement. I will try to give out a
benchmark, but since it is inspired by our own batch table tasks, it might take
time to give one. Though since this PR concurrently send partition info and
deploy task in another thread, it theoretically does good.
Keep on on Flink 1.6! I will nudge you guys to review this one,
though(laughed)---
