Github user tgravescs commented on a diff in the pull request:
https://github.com/apache/spark/pull/15627#discussion_r85552081
--- Diff: yarn/src/main/scala/org/apache/spark/deploy/yarn/Client.scala ---
@@ -598,8 +598,12 @@ private[spark] class Client(
).foreach { case (flist, resType, addToClasspath) =>
flist.foreach { file =>
val (_, localizedPath) = distribute(file, resType = resType)
- if (addToClasspath && localizedPath != null) {
- cachedSecondaryJarLinks += localizedPath
+ if (addToClasspath) {
+ if (localizedPath != null) {
+ cachedSecondaryJarLinks += localizedPath
+ }
+ } else {
+ require(localizedPath !=null)
--- End diff --
Lets change the error to illegal argument exception.
Also lets comment this to indicate jars are ok due to spark 2.0 jar
install, everything else shouldn't have multiple of same jar/file/archive.
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