hddong commented on a change in pull request #23837: [SPARK-26929][SQL]fix 
table owner use user instead of principal when …
URL: https://github.com/apache/spark/pull/23837#discussion_r260118043
 
 

 ##########
 File path: 
sql/hive/src/main/scala/org/apache/spark/sql/hive/client/HiveClientImpl.scala
 ##########
 @@ -186,7 +187,12 @@ private[hive] class HiveClientImpl(
   /** Returns the configuration for the current session. */
   def conf: HiveConf = state.getConf
 
-  private val userName = conf.getUser
+  private val userName: String = try {
+    val ugi = HiveUtils.getUGI
+    ugi.getShortUserName
+  } catch {
+    case e: LoginException => throw new IOException(e)
+  }
 
 Review comment:
   And i think it's not a fix for forth and back, actually, it is a copy of 
#20034  use ugi.shortUserName instead of userName

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