dongjoon-hyun commented on code in PR #49949:
URL: https://github.com/apache/spark/pull/49949#discussion_r1955515746
##########
core/src/main/scala/org/apache/spark/util/Utils.scala:
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@@ -2448,7 +2449,7 @@ private[spark] object Utils
} catch {
// JEP 486: Permanently Disable the Security Manager
case e: UnsupportedOperationException if
e.getMessage().contains("getSubject") =>
- "spark"
+ System.getProperty("user.name", "spark")
Review Comment:
This is the same case when you use `SPARK_USER=spark`.
Security is already broken here when `getSubject` is disallowed, @yaooqinn .
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