Github user tgravescs commented on a diff in the pull request:
https://github.com/apache/spark/pull/8398#discussion_r37873720
--- Diff: core/src/main/scala/org/apache/spark/SecurityManager.scala ---
@@ -310,7 +310,13 @@ private[spark] class SecurityManager(sparkConf:
SparkConf)
setViewAcls(Set[String](defaultUser), allowedUsers)
}
- def getViewAcls: String = viewAcls.mkString(",")
+ def getViewAcls: String = {
+ if (viewAcls.contains("*")) {
--- End diff --
It would be good here to put a comment that YARN requires only a * to be
returned. you can't have *,user1,user2 to explain why we do this
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