Github user heary-cao commented on a diff in the pull request: https://github.com/apache/spark/pull/18174#discussion_r123923859 --- Diff: core/src/main/java/org/apache/spark/shuffle/sort/ShuffleExternalSorter.java --- @@ -82,6 +82,9 @@ /** The buffer size to use when writing spills using DiskBlockObjectWriter */ private final int fileBufferSizeBytes; + /** The buffer size to use when writes the sorted records to an on-disk file */ --- End diff -- @jiangxb1987 thanks for review it, The UnsafeSorterSpillWriter changes were updated. please review it.
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