Github user andrewor14 commented on a diff in the pull request:
https://github.com/apache/spark/pull/9610#discussion_r44743641
--- Diff:
core/src/main/scala/org/apache/spark/shuffle/FileShuffleBlockResolver.scala ---
@@ -84,17 +86,8 @@ private[spark] class FileShuffleBlockResolver(conf:
SparkConf)
Array.tabulate[DiskBlockObjectWriter](numReducers) { bucketId =>
val blockId = ShuffleBlockId(shuffleId, mapId, bucketId)
val blockFile = blockManager.diskBlockManager.getFile(blockId)
- // Because of previous failures, the shuffle file may already
exist on this machine.
- // If so, remove it.
- if (blockFile.exists) {
- if (blockFile.delete()) {
- logInfo(s"Removed existing shuffle file $blockFile")
- } else {
- logWarning(s"Failed to remove existing shuffle file
$blockFile")
- }
- }
- blockManager.getDiskWriter(blockId, blockFile,
serializerInstance, bufferSize,
- writeMetrics)
+ val tmp = new File(blockFile.getAbsolutePath + "." +
UUID.randomUUID())
--- End diff --
why not use your new method `Utils.withTempFile`
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