[jira] [Created] (FLINK-9875) Add concurrent creation of execution job vertex

[Shang Yuanchun (Jira)]

陈梓立 created FLINK-9875:
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             Summary: Add concurrent creation of execution job vertex
                 Key: FLINK-9875
                 URL: https://issues.apache.org/jira/browse/FLINK-9875
             Project: Flink
          Issue Type: Improvement
          Components: Local Runtime
    Affects Versions: 1.5.1
            Reporter: 陈梓立
            Assignee: 陈梓立


in some case like inputformat vertex, creation of execution job vertex is time
consuming, this pr add concurrent creation of execution job vertex to accelerate it.



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