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Posted to issues@flink.apache.org by "Yingjie Cao (Jira)" <ji...@apache.org> on 2020/10/13 06:33:00 UTC
[jira] [Created] (FLINK-19601) Introduce sort-merge based blocking
result partition SortMergeResultPartition and the corresponding
subpartition reader
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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