xkrogen commented on a change in pull request #28874:
URL: https://github.com/apache/spark/pull/28874#discussion_r445149855



##########
File path: core/src/test/scala/org/apache/spark/deploy/SparkSubmitSuite.scala
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@@ -1256,19 +1256,19 @@ class SparkSubmitSuite
 
     val jars = conf.get("spark.yarn.dist.jars").split(",").toSet
 
-    def isSchemeBlacklisted(scheme: String) = {
-      blacklistSchemes.contains("*") || blacklistSchemes.contains(scheme)
+    def isSchemeForcedDownload(scheme: String) = {

Review comment:
       The schemes considered here force a download-and-reupload for use with 
the YARN cache as opposed to allowing them to remain in their original 
location. I think these lines pretty clearly indicate that this method and the 
related variables are really a force-download-list:
   ```
       val forceDownloadArgs = if (blacklistSchemes.nonEmpty) {     val 
forceDownloadArgs = if (forceDownloadSchemas.nonEmpty) {
         Seq("--conf", 
s"spark.yarn.dist.forceDownloadSchemes=${blacklistSchemes.mkString(",")}")
   ```
   
   However I just noticed that I incorrectly named this as 
`forceDownloadSchemas` instead of `forceDownloadSchemes`, I will fix this.




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