Github user StephanEwen commented on the issue:
https://github.com/apache/flink/pull/4369
Hi @summerleafs!
I think we cannot use this approach to fix this. The most important thing
is that this introduces a blocking operation (`.get()` on the future) in the
call, which will make the while `schedueEager()` call block. Since the
ExecutionGraph runs in an actor-style context, methods must never block.
Everything must be implemented with future completion functions.
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at infrastruct...@apache.org or file a JIRA ticket
with INFRA.
---
