jinglining opened a new pull request #10359: [FLINK-14813][metrics] Provide `isBackPressured` Task metric URL: https://github.com/apache/flink/pull/10359 ## What is the purpose of the change This pull request exposes whether a task is backpressured metric which define in FLINK-14472. ## Brief change log - Add BackPressureGauge. - Register it in org.apache.flink.runtime.taskmanager.Task.Task. ## Verifying this change This change added a test and can be verified as follows: - org.apache.flink.runtime.taskmanager.TaskTest.testBackPressureMetric ## 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? (yes) - If yes, how is the feature documented? (documented)
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