carp84 opened a new pull request #11025: [FLINK-15919][core][mem] MemoryManager shouldn't allow releasing more memory than reserved URL: https://github.com/apache/flink/pull/11025 ## What is the purpose of the change Currently `MemoryManager` allows to release more memory than the left reserved size and this PR aims at fixing the problem. ## Brief change log Change the `MemoryManager.releaseMemory` method, recording the actual memory to release during the `reservedMemory` computation and use it for releasing `budgetByType`. ## Verifying this change This change added a new `testMemoryReleaseMoreThanReserved` test in `MemoryManagerTest` to cover the issue case. ## 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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