reswqa opened a new pull request, #22447:
URL: https://github.com/apache/flink/pull/22447

   ## What is the purpose of the change
   
   *After [FLINK-31763](https://issues.apache.org/jira/browse/FLINK-31763), we 
don't need the specific field `numberOfRequestedOverdraftMemorySegments` to 
record the overdraft buffers has been requested anymore since we regard all 
buffers exceeding the `currentPoolSize` as overdraft.*
   
   
   ## Brief change log
   
     - *Introduce getNumberOfRequestedMemorySegments and rename the old one to 
a more appropriate name.*
     - *Get rid of numberOfRequestedOverdraftMemorySegments in LocalBufferPool.*
   
   
   ## Verifying this change
   
   
   This change is already covered by existing tests in `LocalBufferPoolTest`.
   
   ## 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): per-buffer
     - Anything that affects deployment or recovery: JobManager (and its 
components), Checkpointing, Kubernetes/Yarn, ZooKeeper: no
     - The S3 file system connector: no
   
   ## Documentation
   
     - Does this pull request introduce a new feature? no
   


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