[GitHub] [flink] zhijiangW opened a new pull request #8320: [FLINK-12201][network][metrics] Introduce InputGateWithMetrics in Task to increment numBytesIn metric

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

zhijiangW opened a new pull request #8320: [FLINK-12201][network][metrics] Introduce InputGateWithMetrics in Task to increment numBytesIn metric
URL: https://github.com/apache/flink/pull/8320
 
 
   ## What is the purpose of the change
   
   *Incrementing of `numBytesIn` metric does not depend on specific shuffle service and can be moved out of network internals into `Task`. `Task` could wrap `InputGate` provided by `ShuffleService` with `InputGateWithMetrics` which would increment `numBytesIn` metric.*
   
   ## Brief change log
   
     - *Introduce `InputGateWithMetrics` class for implementing `InputGate` interface*
     - *Task wraps `InputGateWithMetrics` with created `InputGate` from `NetworkEnvironment`*
     - *Remove the counter from `SingleInputGate`*
   
   ## Verifying this change
   
   This change is a trivial rework / code cleanup without any test coverage.
   
   ## 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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