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Posted to issues@flink.apache.org by GitBox <gi...@apache.org> on 2019/04/01 06:55:23 UTC

[GitHub] [flink] zhijiangW opened a new pull request #8090: [FLINK-12067][network] Refactor the constructor of NetworkEnvironment

zhijiangW opened a new pull request #8090: [FLINK-12067][network] Refactor the constructor of NetworkEnvironment
URL: https://github.com/apache/flink/pull/8090
 
 
   ## What is the purpose of the change
   
   *The constructor of `NetworkEnvironment` could be refactored to only contain `NetworkEnvironmentConfiguration`, the other related components such as `TaskEventDispatcher`, `ResultPartitionManager`, `NetworkBufferPool` could be created internally.*
   
   *We also refactor the process of generating `NetworkEnvironmentConfiguration` in `TaskManagerServiceConfiguration` to add `numNetworkBuffers` instead of previous `networkBufFraction`, `networkBufMin`, `networkBufMax`. This way seems more easy and direct to construct `NetworkBufferPool` later. `isCreditBased` field is also maintained in this component for considering the setting usage in tests.*
   
   *Further we introduce the `NetworkEnvironmentConfigurationBuilder` for creating `NetworkEnvironmentConfiguration` easily especially for tests.*
   
   ## Brief change log
   
     - *Refactor the constructor of `NetworkEnvironment` to container only `NetworkEnvironmentConfiguration*
     - *Refactor the constructor of `NetworkEnvironmentConfiguration`*
     - *Introduce the NetworkEnvironmentConfigurationBuilder` for tests*
   
   ## Verifying this change
   
   This change is already covered by existing tests, such as *NetworkEnvironmentTest* and *NetworkBufferCalculationTest*.
   
   ## 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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