SinBex opened a new pull request, #24764: URL: https://github.com/apache/flink/pull/24764
## What is the purpose of the change [FLIP-379](https://cwiki.apache.org/confluence/display/FLINK/FLIP-379%3A+Dynamic+source+parallelism+inference+for+batch+jobs) introduces dynamic source parallelism inference, which, compared to static inference, utilizes runtime information to more accurately determine the source parallelism. The FileSource already possesses the capability for dynamic parallelism inference. As a follow-up task to FLIP-379, this FLIP plans to implement the dynamic parallelism inference interface for HiveSource, and also switches the default static parallelism inference to dynamic parallelism inference. ## Brief change log - *Enable HiveSource with dynamic parallelism inference capability.* - *Switch the default parallelism inference mode of HiveSource to dynamic inference and introduce a new configuration 'table.exec.hive.infer-source-parallelism.mode' to select the mode, while deprecating the original configuration 'table.exec.hive.infer-source-parallelism'.* ## Verifying this change - *Added unit tests for HiveSource#inferParallelism.* - *Verify functional and performance changes on actual clusters through TPC-DS.* ## 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? (yes ) - If yes, how is the feature documented? (docs) -- 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. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
