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https://issues.apache.org/jira/browse/SPARK-14186?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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He Tianyi updated SPARK-14186:
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Component/s: (was: Spark Core)
Block Manager
> Size awareness during spill and shuffle
> ---------------------------------------
>
> Key: SPARK-14186
> URL: https://issues.apache.org/jira/browse/SPARK-14186
> Project: Spark
> Issue Type: Improvement
> Components: Block Manager, Shuffle
> Affects Versions: 1.6.0
> Reporter: He Tianyi
> Priority: Minor
>
> Currently during spilling of a collection of record, sorter calls
> {{createTempShuffleBlock}} for allocating a local block.
> This call provides no size information about required block. Without
> knowledge of estimated size, this makes customized allocation strategy hard
> to implement .
> On the other hand, theoretically both {{PartitionedPairBuffer}} and
> {{PartitionedAppendOnlyMap}} are able to track its estimated size.
> In this case, it is convenient to extract size information and pass it as
> parameter to {{createTempShuffleBlock}}.
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