pnowojski opened a new pull request #13234:
URL: https://github.com/apache/flink/pull/13234
This PR adds a possibility to chain `SourceOperator` with
`MultipleInputStreamTask`. Currently checkpointing, watermarks or metrics are
not tested (part of another ticket).
## Brief change log
Please check individual commit messages.
## Verifying this change
This change added `MultipleInputStreamTaskChainedSourcesTest` for the new
feature.
## 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/Mesos, 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** / no)
- If yes, how is the feature documented? (not applicable / docs / JavaDocs
/ **not documented**)
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