HeartSaVioR edited a comment on issue #24154: [SPARK-27210][SS] Cleanup incomplete output files in ManifestFileCommitProtocol if task is aborted URL: https://github.com/apache/spark/pull/24154#issuecomment-474731098 Another approach would be leveraging metadata: after completing batch we can compare and delete output files which are not in metadata log. (Actually we can do both: check whether files in metadata log are deleted, and filter out deleted files from metadata log in compaction batch.) The downside of this approach is it might bring non-trivial overhead of listing output files in output directory.
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