ferenc-csaky opened a new pull request, #23062: URL: https://github.com/apache/flink/pull/23062
## What is the purpose of the change Introduces a file catalog store implementation that supports external file systems. ## Brief change log - Use `org.apache.flink.core.fs.Path` instead of standard Java local FS file utils. - Use `FSDataOutputStream` and `FSDataInputStream` to read/write the catalog store file. - Validate the given catalog store file exists in `FileCatalogStore#open()`, as automatic directory creation may fail on external file systems. (Permission problems or unsupported API) ## Verifying this change This change is already covered by existing tests, such as: - `FileCatalogStoreTest` - `FileCatalogStoreFactoryTest` Will add a test case with an external FS. ## 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? no -- 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: issues-unsubscr...@flink.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org