[GitHub] [flink] zhuzhurk opened a new pull request #10179: [FLINK-14734][runtime] Add a ResourceSpec in SlotSharingGroup to describe its overall resources

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zhuzhurk opened a new pull request #10179: [FLINK-14734][runtime] Add a ResourceSpec in SlotSharingGroup to describe its overall resources
URL: https://github.com/apache/flink/pull/10179
 
 
   
   ## What is the purpose of the change
   
   This PR is to add a ResourceSpec for SlotSharingGroup. Its value is a merge of the resources of all operators in it. It enables FLINK-14314 to allocate task slot regarding the share slot resources.
   
   The change is based on #10079.
   
   ## Brief change log
   
     - *Add subtract method for ResourceSpec*
     - *Add a ResourceSpec in SlotSharingGroup*
     - *Make slot sharing group ResourceSpec updated with vertices added/removed*
   
   
   ## Verifying this change
   
     - *Added unit tests for ResourceSpec#subtract and SlotSharingGroup#resourceSpec*
   
   ## 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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