Stephan Ewen created FLINK-19024:
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Summary: Remove unused "releaseMemory" from ResultSubpartition
Key: FLINK-19024
URL: https://issues.apache.org/jira/browse/FLINK-19024
Project: Flink
Issue Type: Sub-task
Components: Runtime / Network
Reporter: Stephan Ewen
Assignee: Stephan Ewen
Fix For: 1.12.0
The {{releaseMemory()}} call in the {{ResultSubpartition}} is currently not
meaningful for any existing implementation.
Future versions where memory may have to be released will quite possibly not
implement that on a "subpartition" level. For example, a sort based shuffle has
the buffers on a partition-level, rather than a subpartition level.
We should thus remove the {{releaseMemory()}} call from the abstract
subpartition interface. Concrete implementations can still release memory on a
subpartition level, if needed in the future.
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