Github user li-zhihui commented on a diff in the pull request: https://github.com/apache/spark/pull/1616#discussion_r17097313 --- Diff: core/src/main/scala/org/apache/spark/util/Utils.scala --- @@ -317,13 +317,58 @@ private[spark] object Utils extends Logging { } /** + * Copy cached file to targetDir, if not exists, download it from url firstly. + * If useCache == false, download file to targetDir directly. --- End diff -- I want to keep the util method flexible primarily, because we make the old <code>fetchFile</code> private. But I am not sure if the tag is necessary too. @JoshRosen How do you think about it?
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