Github user XuefengWu commented on a diff in the pull request:
https://github.com/apache/spark/pull/3293#discussion_r20418986
--- Diff: core/src/main/scala/org/apache/spark/util/Utils.scala ---
@@ -759,18 +759,9 @@ private[spark] object Utils extends Logging {
if (file != null) {
try {
if (file.isDirectory && !isSymlink(file)) {
- var savedIOException: IOException = null
- for (child <- listFilesSafely(file)) {
- try {
- deleteRecursively(child)
- } catch {
- // In case of multiple exceptions, only last one will be
thrown
- case ioe: IOException => savedIOException = ioe
- }
- }
- if (savedIOException != null) {
- throw savedIOException
- }
+ listFilesSafely(file).map(child =>
Try(deleteRecursively(child))).
--- End diff --
`Iterator(1,2,3).map{i => println(i);i}` nothing happened for a lazy
collection until consume asked.
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