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https://issues.apache.org/jira/browse/FLINK-19597?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yingjie Cao updated FLINK-19597:
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Summary: Introduce SortBuffer and PartitionSortedBuffer for sort-merge
based blocking shuffle (was: Introduce SortBuffer and its implementation
PartitionSortedBuffer for sort-merge based blocking shuffle)
> Introduce SortBuffer and PartitionSortedBuffer for sort-merge based blocking
> shuffle
> ------------------------------------------------------------------------------------
>
> Key: FLINK-19597
> URL: https://issues.apache.org/jira/browse/FLINK-19597
> Project: Flink
> Issue Type: Sub-task
> Components: Runtime / Network
> Affects Versions: 1.12.0
> Reporter: Yingjie Cao
> Priority: Major
> Fix For: 1.12.0
>
>
> Data of different channels can be appended to a SortBuffer and after the
> SortBuffer is finished, the appended data can be copied from it in channel
> index order. PartitionSortedBuffer is an implementation of SortBuffer and it
> sorts all appended records only by subpartition index. Records of the same
> subpartition keep the appended order.
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