HeartSaVioR edited a comment on issue #25488: [SPARK-28025][SS] Fix FileContextBasedCheckpointFileManager leaking crc files URL: https://github.com/apache/spark/pull/25488#issuecomment-522379521 As the issue only occurs from temp file, another possible approach would be removing crc file for temp file when FSOutputSummer is being used as OutputStream: ``` underlyingStream match { case e: FSDataOutputStream if e.getWrappedStream.isInstanceOf[FSOutputSummer] => val checksumFile = new Path(tempPath.getParent, s".${tempPath.getName}.crc") fm.delete(checksumFile) case _ => } ``` adding above block after `underlyingStream.close()` would also work. This change will touch RenameBasedFSDataOutputStream.
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