Github user advancedxy commented on a diff in the pull request: https://github.com/apache/spark/pull/23083#discussion_r235300436 --- Diff: core/src/main/scala/org/apache/spark/storage/ShuffleBlockFetcherIterator.scala --- @@ -72,7 +73,8 @@ final class ShuffleBlockFetcherIterator( maxBlocksInFlightPerAddress: Int, maxReqSizeShuffleToMem: Long, detectCorrupt: Boolean) - extends Iterator[(BlockId, InputStream)] with DownloadFileManager with Logging { + extends Iterator[(BlockId, InputStream)] with DownloadFileManager with TaskCompletionListener --- End diff -- I don't it's a good idea for ShuffleBlockFetchIterator to be a subclass of TaskCompletionListener. What's wrong with original solution?
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