Github user cloud-fan commented on a diff in the pull request: https://github.com/apache/spark/pull/16989#discussion_r118183998 --- Diff: common/network-shuffle/src/main/java/org/apache/spark/network/shuffle/OneForOneBlockFetcher.java --- @@ -126,4 +150,41 @@ private void failRemainingBlocks(String[] failedBlockIds, Throwable e) { } } } + + private class DownloadCallback implements StreamCallback { + + private WritableByteChannel channel = null; + private File targetFile = null; + private int chunkIndex; + + public DownloadCallback(File targetFile, int chunkIndex) throws IOException { + this.targetFile = targetFile; + this.channel = Channels.newChannel(new FileOutputStream(targetFile)); + this.chunkIndex = chunkIndex; + } + + @Override + public void onData(String streamId, ByteBuffer buf) throws IOException { + channel.write(buf); + } + + @Override + public void onComplete(String streamId) throws IOException { + channel.close(); + ManagedBuffer buffer = new FileSegmentManagedBuffer(transportConf, targetFile, 0, + targetFile.length()); + listener.onBlockFetchSuccess(blockIds[chunkIndex], buffer); + } + + @Override + public void onFailure(String streamId, Throwable cause) throws IOException { + channel.close(); + // On receipt of a failure, fail every block from chunkIndex onwards. + String[] remainingBlockIds = Arrays.copyOfRange(blockIds, chunkIndex, blockIds.length); + failRemainingBlocks(remainingBlockIds, cause); + if (!targetFile.delete()) { --- End diff -- let's also delete this file in the task completion callback.
--- If your project is set up for it, you can reply to this email and have your reply appear on GitHub as well. If your project does not have this feature enabled and wishes so, or if the feature is enabled but not working, please contact infrastructure at infrastruct...@apache.org or file a JIRA ticket with INFRA. --- --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org