Zakelly opened a new pull request, #24614:
URL: https://github.com/apache/flink/pull/24614
## What is the purpose of the change
This PR ship the core part of FLIP-425, including the basic execution logic
of AsyncExecutionController.
Note: This PR is based on #24597 which is still under review.
## Brief change log
- AsyncExecutionController and other components around it.
- RecordContext and reference counting mechanism.
- Basic implementation of KeyAccountingUnit.
## Verifying this change
- Added unit tests under `org.apache.flink.runtime.asyncprocessing`
## 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): yes
(introduce new)
- 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? yes
- If yes, how is the feature documented? not documented
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