[jira] [Created] (FLINK-19601) Introduce sort-merge based blocking result partition SortMergeResultPartition and the corresponding subpartition reader

[Shang Yuanchun (Jira)]

Yingjie Cao created FLINK-19601:
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             Summary: Introduce sort-merge based blocking result partition SortMergeResultPartition and the corresponding subpartition reader
                 Key: FLINK-19601
                 URL: https://issues.apache.org/jira/browse/FLINK-19601
             Project: Flink
          Issue Type: Sub-task
          Components: Runtime / Network
    Affects Versions: 1.12.0
            Reporter: Yingjie Cao
             Fix For: 1.12.0


SortMergeResultPartition appends all added records and events to a SortBuffer and after the SortBuffer is full, all data in the SortBuffer will be copied and spilled to a PartitionedFile in subpartition index order. Different from the hash-based blocking shuffle implementation, SortMergeResultPartition can write at most one file concurrently.



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