tillrohrmann commented on issue #7880: [FLINK-11336][zk] Delete ZNodes when ZooKeeperHaServices#closeAndCleanupAllData URL: https://github.com/apache/flink/pull/7880#issuecomment-469213347 `#closeAndCleanupAllData` should only be called by the `ClusterEntrypoint` which transitions the executed `ExecutionGraph` into a globally terminal state. This should only be possible for the current leader. If the leader changes after the `ExecutionGraph` has reached a globally terminal state, then the new leader should not start the execution. At the moment, this is not guaranteed to not happen.
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