sunhaibotb opened a new pull request #8742: [FLINK-11879] Add validators for the uses of InputSelectable, BoundedOneInput and BoundedMultiInput URL: https://github.com/apache/flink/pull/8742 ## What is the purpose of the change This pull request add the following validators for the uses of `InputSelectable`, `BoundedOneInput` and `BoundedMultiInput`. - Rejects the jobs containing operators which implement `InputSelectable` in case that checkpointing is enabled. - Rejects the jobs containing operators which implement `BoundedInput` or `BoundedMultiInput` in case that checkpointing is enabled. - Rejects the jobs containing operators which implement `InputSelectable` in case that credit-based flow control is disabled. ## Brief change log - In `StreamingJobGraphGenerator`, add a validator that does not support the operators which implement `InputSelectable` or `BoundedOneInput` or `BoundedMultiInput` when checkpointing is enabled. - In `StreamTask`, add a validator that does not support the operators which implement `InputSelectable` when credit-based mode is disabled. ## Verifying this change This change added tests and can be verified as follows: - Added test that validates the correctness of the new validator in `StreamingJobGraphGenerator`. - Added test that validates the correctness of the new validator in `StreamTask`. ## 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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