Github user asfgit closed the pull request at:
https://github.com/apache/flink/pull/4501
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GitHub user tillrohrmann opened a pull request:
https://github.com/apache/flink/pull/4501
[FLINK-7352] [tests] Stabilize ExecutionGraphRestartTest
## What is the purpose of the change
Introduce an explicit waiting for the deployment of tasks. This replaces
the loose
