Fan Hong created FLINK-32810:
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Summary: Improve managed memory usage in ListStateWithCache
Key: FLINK-32810
URL: https://issues.apache.org/jira/browse/FLINK-32810
Project: Flink
Issue Type: Improvement
Components: Library / Machine Learning
Reporter: Fan Hong
Right now, by default, `ListStateWithCache` will use up all the managed memory
allocated for`ManagedMemoryUseCase.OPERATOR`.
It could bring some bugs in some situations. For example, there exist more than
one `ListStateWithCache`s in a single operator, or there are other places using
managed memory of `ManagedMemoryUseCase.OPERATOR`.
An approach to resolve such cases is to let the developer of the operator be
aware about the usage of managed memory of `ManagedMemoryUseCase.OPERATOR`,
instead of implicitly use up all of it. Therefore, I think it is better to add
a parameters `fraction` to specify how much memory is used in the
`ListStateWithCache`.
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