Yuxin Tan created FLINK-28446:
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Summary: Expose more information in PartitionDescriptor to support
more optimized Shuffle Service
Key: FLINK-28446
URL: https://issues.apache.org/jira/browse/FLINK-28446
Project: Flink
Issue Type: Improvement
Affects Versions: 1.16.0
Reporter: Yuxin Tan
To improve shuffle performance, more detailed fields should be added to
PartitionDescriptor, for example, whether the partition is a broadcast
partition or the distribution pattern of the intermediate result.
After the detailed information is added, the Shuffle Service can use different
Shuffle strategies in different situations, which may lead to better shuffle
performance.
In addition, we only add fields to PartitionDescriptor, which is compatible
with the previous version, and the added fields are insensitive to earlier
users.
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