HyukjinKwon commented on a change in pull request #35082:
URL: https://github.com/apache/spark/pull/35082#discussion_r776997605



##########
File path: core/src/main/scala/org/apache/spark/util/Utils.scala
##########
@@ -605,6 +606,18 @@ private[spark] object Utils extends Logging {
     }
   }
 
+  def setExec(dest: File): Unit = {
+    val files = dest.listFiles()
+    for (i <- files) {
+      if (i.isDirectory) {
+        setExec(i)
+      }
+      else {
+        i.setExecutable(true)

Review comment:
       No.. I think we shouldn't just change file permissions to be all 
executable blindly. Some of them might be intentionally not executable to 
prevent users mistakenly run. Is there any way to keep and restore the original 
file permissions?




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