tweise opened a new pull request #15924: URL: https://github.com/apache/flink/pull/15924
## What is the purpose of the change Initial implementation for hybrid source with support for fixed start position and runtime position conversion for an upfront defined source sequence. Can work with any FLIP-27 source. Discussion: https://lists.apache.org/thread.html/r94057d19f0df2a211695820375502d60cddeeab5ad27057c1ca988d6%40%3Cdev.flink.apache.org%3E Based on the previously shared prototype. Integration test with `MockBaseSource`. Unit tests to be added. Tested with `FileSource` and `KafkaSource` on Flink 1.12 cluster. This combination would be a candidate for future e2e test addition. The design follows overall that outlined in https://cwiki.apache.org/confluence/display/FLINK/FLIP-150%3A+Introduce+Hybrid+Source except that no special interfaces are required for switching of underlying sources. ## 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) - User documentation will be added as follow-up once baseline is established -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org
