SinBex opened a new pull request, #26211:
URL: https://github.com/apache/flink/pull/26211
## What is the purpose of the change
When the large table side has not yet initialized, if the small table side
finishes early and the output data volume is smaller than the broadcast
threshold, the adaptive join operator can be optimized to a broadcast hash join
in advance. This can help reduce network shuffle overhead.
## Brief change log
- *The adaptive broadcast join optimization is triggered in advance when
any input of the join node meets the broadcast condition.*
## Verifying this change
This change is already covered by existing tests, such as *(please describe
tests)*.
## 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, ZooKeeper: (no)
- The S3 file system connector: (no )
## Documentation
- Does this pull request introduce a new feature? (no)
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