xkrogen commented on a change in pull request #31591:
URL: https://github.com/apache/spark/pull/31591#discussion_r580396470



##########
File path: core/src/main/scala/org/apache/spark/deploy/SparkSubmit.scala
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@@ -1278,11 +1287,22 @@ private[spark] object SparkSubmitUtils {
       remoteRepos: Option[String],
       ivyPath: Option[String]): IvySettings = {
     val file = new File(settingsFile)
-    require(file.exists(), s"Ivy settings file $file does not exist")
-    require(file.isFile(), s"Ivy settings file $file is not a normal file")
+    // When running driver in cluster mode, the settingsFile is localized and 
so needs to be
+    // accessed using just the file name and not the full file path
+    val localizedFile = new File(file.getName)
+    val resolvedFile = if (file.exists()) {

Review comment:
       +1 that if we go the `spark.files` route we should probably keep a 
separate (internal) config to pass the file name info.  Similar to 
`spark.yarn.user.jar`, `spark.yarn.cache.filenames`, etc.




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