tillrohrmann opened a new pull request #7935: [FLINK-11855] Fix race condition in EmbeddedLeaderService#GrantLeadershipCall URL: https://github.com/apache/flink/pull/7935 ## What is the purpose of the change Fix the race condition between executing EmbeddedLeaderService#GrantLeadershipCall and a concurrent shutdown of the leader service by making GrantLeadershipCall not accessing mutable state outside of a lock. ## Verifying this change - Added `EmbeddedLeaderServiceTest#testConcurrentGrantLeadershipAndShutdown` ## 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: (yes) - 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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