azagrebin opened a new pull request #9072: [FLINK-11630] Wait for the termination of all running Tasks when shutting down TaskExecutor URL: https://github.com/apache/flink/pull/9072 ## What is the purpose of the change Add a unit test to #8605. Currently, the `TaskExecutor` does not properly wait for the termination of Tasks when it shuts down in `TaskExecutor#onStop`. This patch changes `TaskExecutor#onStop` to fail all running tasks and wait for their termination before stopping all services. ## Brief change log - add `TaskCompletionTracker` to track task termination futures in `TaskExecutor` - try to fail all running tasks and wait for their termination before stopping all services - add `TaskExecutorTest.testTaskInterruptionAndTerminationOnShutdown` ## Verifying this change run `TaskExecutorTest.testTaskInterruptionAndTerminationOnShutdown` ## 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? (no) - If yes, how is the feature documented? (not applicable)
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