[jira] [Created] (FLINK-21602) Creation of ExecutionGraph happens in main thread

[Shang Yuanchun (Jira)]

Till Rohrmann created FLINK-21602:
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             Summary: Creation of ExecutionGraph happens in main thread
                 Key: FLINK-21602
                 URL: https://issues.apache.org/jira/browse/FLINK-21602
             Project: Flink
          Issue Type: Sub-task
          Components: Runtime / Coordination
    Affects Versions: 1.13.0
            Reporter: Till Rohrmann
             Fix For: 1.13.0


Currently, the {{AdaptiveScheduler}} creates the {{ExecutionGraph}} in the main thread. This also means that we are recovering state in the {{JobMasters's}} main thread. This can lead to instabilities because we are blocking the main thread for too long. I think the creation of the {{ExecutionGraph}} should happen in an {{ioExecutor}}.



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