[jira] [Closed] (FLINK-19024) Remove unused "releaseMemory" from ResultSubpartition

["Stephan Ewen (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-19024?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Stephan Ewen closed FLINK-19024.
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> 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
>            Priority: Minor
>             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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