gaoyunhaii opened a new pull request #16238:
URL: https://github.com/apache/flink/pull/16238


   ## What is the purpose of the change
   
   This PR allows the task to report finished status if it has closed 
operators. The reported subtask status would be used to calculate if the whole 
operator is fully finished on the JM side. 
   
   ## Brief change log
   
   - df455f060b64611f06bc068094afcc48b98984af snapshot the finished status for 
the closed operator.
   
   ## Verifying this change
   
   This change added tests and can be verified by added UT.
   
   ## Does this pull request potentially affect one of the following parts:
   
     - Dependencies (does it add or upgrade a dependency): **no**
     - The public API, i.e., is any changed class annotated with 
`@Public(Evolving)`: **no**
     - The serializers: **no**
     - The runtime per-record code paths (performance sensitive): **no**
     - Anything that affects deployment or recovery: JobManager (and its 
components), Checkpointing, Kubernetes/Yarn/Mesos, ZooKeeper: **no**
     - The S3 file system connector: **no**
   
   ## Documentation
   
     - Does this pull request introduce a new feature? **no**
     - If yes, how is the feature documented? **not applicable**
   


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