dianfu opened a new pull request, #27170:
URL: https://github.com/apache/flink/pull/27170
## What is the purpose of the change
*This pull request supports ordered mode for async function in Python
DataStream API*
## Brief change log
- *Add API ordered_wait and ordered_wait_with_retry in AsyncDataStream.py *
- *Introduce OrderedStreamElementQueue*
## Verifying this change
This change added tests and can be verified as follows:
- *Added test test_ordered_mode*
## Does this pull request potentially affect one of the following parts:
- Dependencies (does it add or upgrade a dependency): (yes / no)
- The public API, i.e., is any changed class annotated with
`@Public(Evolving)`: (yes / no)
- The serializers: (yes / no / don't know)
- The runtime per-record code paths (performance sensitive): (yes / no /
don't know)
- Anything that affects deployment or recovery: JobManager (and its
components), Checkpointing, Kubernetes/Yarn, ZooKeeper: (yes / no / don't know)
- The S3 file system connector: (yes / no / don't know)
## Documentation
- Does this pull request introduce a new feature? (yes)
- If yes, how is the feature documented? (not documented, will add
documentation in a separate PR)
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