[GitHub] [flink] zhijiangW opened a new pull request #8648: [FLINK-12738][network] Remove abstract getPageSize method from InputGate

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

zhijiangW opened a new pull request #8648: [FLINK-12738][network] Remove abstract getPageSize method from InputGate
URL: https://github.com/apache/flink/pull/8648
 
 
   ## What is the purpose of the change
   
   *Currently `InputGate#getPageSize` is only used for constructing `BarrierBuffer`. In order to make abstract `InputGate` simple and clean, we should remove unnecessary abstract methods from it.
   Considering the page size could be parsed directly from configuration which could also visible while constructing `BarrierBuffer`, so it is reasonable to do so.*
   
   ## Brief change log
   
     - *Remove the parameter of page size from `CachedBufferBlocker` constructor*
     - *Refactor `getPageSize` utility from `NetworkEnvironmentConfiguration` to `ConfigurationParserUtils`*
     - *Remove `getPageSize` method from `InputGate`*
     -  *Remove `getMemorySegmentSize` method from `BufferProvider` interface*
     - *Remove unnecessary `getMemorySegmentSize` method from `NetworkBufferPool`*
   
   ## Verifying this change
   
   *Covered by existing tests*
   
   ## 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, 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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