JingsongLi opened a new pull request #11853:
URL: https://github.com/apache/flink/pull/11853
## What is the purpose of the change
When partition values are rare or have skew, if we shuffle by dynamic
partitions, will break the performance.
We can have an option to close shuffle in such cases:
‘sink.shuffle-by-partition.enable’ = ...
## Brief change log
- Modify `BatchExecSinkRule` and `StreamExecSinkRule` to default not shuffle
## Verifying this change
`PartitionSinkTest`
## Does this pull request potentially affect one of the following parts:
- Dependencies (does it add or upgrade a dependency): no
- The public API, i.e., is any changed class annotated with
`@Public(Evolving)`: no
- The serializers: no
- The runtime per-record code paths (performance sensitive): no
- Anything that affects deployment or recovery: JobManager (and its
components), Checkpointing, Kubernetes/Yarn/Mesos, ZooKeeper: no
- The S3 file system connector: no
## Documentation
- Does this pull request introduce a new feature? no
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