Yingjie Cao created FLINK-19602:
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Summary: Introduce new config options to enable sort-merge based
blocking shuffle
Key: FLINK-19602
URL: https://issues.apache.org/jira/browse/FLINK-19602
Project: Flink
Issue Type: Sub-task
Components: Runtime / Network
Affects Versions: 1.12.0
Reporter: Yingjie Cao
Fix For: 1.12.0
1. taskmanager.network.sort-merge-blocking-shuffle.enabled: Boolean flag to
enable/disable sort-merge based blocking shuffle.
2. taskmanager.network.sort-merge-blocking-shuffle.buffers-per-partition:
Number of network buffers required for each sort-merge blocking result
partition.
3. taskmanager.network.sort-merge-blocking-shuffle.min-parallelism: Minimum
parallelism to enable the sort-merge based blocking shuffle.
With these new config options, the default behavior of blocking shuffle stays
unchanged.
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