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https://issues.apache.org/jira/browse/FLINK-24190?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Piotr Nowojski closed FLINK-24190.
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Resolution: Fixed
Merged to master as a3378133471^..a3378133471
> Handling large record with buffer debloat
> -----------------------------------------
>
> Key: FLINK-24190
> URL: https://issues.apache.org/jira/browse/FLINK-24190
> Project: Flink
> Issue Type: Sub-task
> Components: Runtime / Network
> Affects Versions: 1.14.0
> Reporter: Anton Kalashnikov
> Assignee: Anton Kalashnikov
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.15.0
>
>
> If the buffer size will be too small(less than record size) due to buffer
> debloat it can lead to performance degradation. It looks like it is better to
> keep the buffer size greater than the record size(or even greater than it).
> Implementation should be easy, we can choose the maximum value between
> desirableBufferSize and recordSize during requesting the new
> buffer(BufferWritingResultPartition#addToSubpartition)
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