Github user cloud-fan commented on a diff in the pull request: https://github.com/apache/spark/pull/16989#discussion_r114343655 --- Diff: common/network-shuffle/src/main/java/org/apache/spark/network/shuffle/OneForOneBlockFetcher.java --- @@ -100,7 +114,14 @@ public void onSuccess(ByteBuffer response) { // Immediately request all chunks -- we expect that the total size of the request is // reasonable due to higher level chunking in [[ShuffleBlockFetcherIterator]]. for (int i = 0; i < streamHandle.numChunks; i++) { - client.fetchChunk(streamHandle.streamId, i, chunkCallback); + if (fetchToDisk) { + final File targetFile = new File(".", --- End diff -- Ideally we should use `DiskBlockManager.getFile` to store data in file system.
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