Github user yhuai commented on a diff in the pull request:
https://github.com/apache/spark/pull/9272#discussion_r44863760
--- Diff:
sql/hive/src/main/scala/org/apache/spark/sql/hive/client/ClientWrapper.scala ---
@@ -20,6 +20,8 @@ package org.apache.spark.sql.hive.client
import java.io.{File, PrintStream}
import java.util.{Map => JMap}
+import org.apache.hadoop.security.UserGroupInformation
--- End diff --
Let's move this import down to the place where we have other hadoop related
imports.
https://cwiki.apache.org/confluence/display/SPARK/Spark+Code+Style+Guide#SparkCodeStyleGuide-Imports
is the doc about import ordering.
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