kl0u opened a new pull request #9597: [FLINK-13941][fs-connector] Do not delete partial part files from S3. URL: https://github.com/apache/flink/pull/9597 ## What is the purpose of the change Fixes potential data-loss in the `StreamingFileSink` that can happen after restoring from a failure. For a scenario that can trigger this data-loss, check https://issues.apache.org/jira/browse/FLINK-13940. ## Brief change log The `S3RecoverableWriter.requiresCleanupOfRecoverableState()` returns `false` so that no clean-up is performed and, in any case, no clean-up is performed in the `initializeState`. ## 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, 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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