tillrohrmann opened a new pull request #11693: [FLINK-17072] Let Dispatcher and ResourceManager use random endpoint id URL: https://github.com/apache/flink/pull/11693 ## What is the purpose of the change Let `Dispatcher` and `ResourceManager` use random endpoint ids. This ensures that neither instance will receive old messages. Moreover, it allows to simplify the `TestingMiniCluster` and the setup of these components for tests. This PR is based on #11683. ## Brief change log * dd58edd This commit ensures that every ResourceManager started by the same JVM process will have a different endpoint id. This ensures that no new RM will receive messages sent to an old RM. * ee0a9c0 This commit ensures that every Dispatcher, running in the same JVM, is started with a different endpoint id. This ensures that no new Dispatcher instance will receive messages sent to an old instance. ## Verifying this change This change is already covered by existing tests, such as *(please describe tests)*. ## 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, Kubernetes/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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