Github user tgravescs commented on a diff in the pull request:
https://github.com/apache/spark/pull/12760#discussion_r61893228
--- Diff: core/src/main/scala/org/apache/spark/util/Utils.scala ---
@@ -2179,6 +2179,24 @@ private[spark] object Utils extends Logging {
.getOrElse(UserGroupInformation.getCurrentUser().getShortUserName())
}
+ val EMPTY_USER_GROUPS = Set[String]()
+
+ // Returns the groups to which the current user belongs.
+ def getCurrentUserGroups(sparkConf: SparkConf, username: String):
Set[String] = {
+ val groupProviderClassName =
sparkConf.get("spark.user.groups.mapping", "")
+ if (groupProviderClassName != "") {
+ try {
+ val groupMappingServiceProvider =
classForName(groupProviderClassName).newInstance.
+
asInstanceOf[org.apache.spark.security.GroupMappingServiceProvider]
+ val currentUserGroups =
groupMappingServiceProvider.getGroups(username)
+ return currentUserGroups
+ } catch {
+ case e: Exception => logError("Unable to get groups for user=" +
username + " msg" + e)
--- End diff --
logError has a syntax logError(msg, e) change to use that
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