[GitHub] [flink] sunhaibotb opened a new pull request #9252: [FLINK-13051][runtime] Replace the non-selectable stream task with the input-selectable one

[GitBox <gi...@apache.org>]

sunhaibotb opened a new pull request #9252: [FLINK-13051][runtime] Replace the non-selectable stream task with the input-selectable one
URL: https://github.com/apache/flink/pull/9252
 
 
   ## What is the purpose of the change
   
   This pull request replaces the non-selectable `StreamTask`/`InputProcessor` with the input-selectable ones. The aim is to simplify the Flink code and make it more efficient.
   
   
   ## Brief change log
   
     - Replaces the non-selectable stream task with the input-selectable one.
     - Drops the non-selectable StreamTask and InputProcessor.
     - Renames `TwoInputSelectableStreamTask` and `StreamTwoInputSelectableProcessor` to `TwoInputStreamTask` and `StreamTwoInputProcessor`respectively.
   
   ## Verifying this change
   
   This change is already covered by existing tests, such as `TwoInputStreamTaskTest`, `StreamTaskCancellationBarrierTest`.
   
   ## Does this pull request potentially affect one of the following parts:
   
     - Dependencies (does it add or upgrade a dependency): (yes / **no**)
     - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: (yes / **no**)
     - The serializers: (yes / **no** / don't know)
     - The runtime per-record code paths (performance sensitive): (**yes** / no / don't know)
     - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Yarn/Mesos, ZooKeeper: (yes / **no** / don't know)
     - The S3 file system connector: (yes / **no** / don't know)
   
   ## Documentation
   
     - Does this pull request introduce a new feature? (yes / **no**)
     - If yes, how is the feature documented? (**not applicable** / docs / JavaDocs / not documented)
   

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