yaooqinn commented on code in PR #49943:
URL: https://github.com/apache/spark/pull/49943#discussion_r1955477351
##########
core/src/main/scala/org/apache/spark/util/Utils.scala:
##########
@@ -2439,11 +2439,17 @@ private[spark] object Utils
/**
* Returns the current user name. This is the currently logged in user,
unless that's been
- * overridden by the `SPARK_USER` environment variable.
+ * overridden by the `SPARK_USER` environment variable. In case of
exceptions, returns 'spark'.
*/
def getCurrentUserName(): String = {
- Option(System.getenv("SPARK_USER"))
- .getOrElse(UserGroupInformation.getCurrentUser().getShortUserName())
+ try {
+ Option(System.getenv("SPARK_USER"))
+ .getOrElse(UserGroupInformation.getCurrentUser().getShortUserName())
+ } catch {
+ // JEP 486: Permanently Disable the Security Manager
+ case e: UnsupportedOperationException if
e.getMessage().contains("getSubject") =>
+ "spark"
Review Comment:
is it safer to fallback to the JVM property `user.name`?
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