Github user yhuai commented on a diff in the pull request:
https://github.com/apache/spark/pull/13236#discussion_r64123606
--- Diff: sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveUtils.scala
---
@@ -129,6 +129,14 @@ private[spark] object HiveUtils extends Logging {
.toSequence
.createWithDefault(Nil)
+ val HIVE_METASTORE_SHARE_HADOOPCLASSES =
+ SQLConfigBuilder("spark.sql.hive.metastore.shareHadoopClasses")
+ .doc("When set to true, the classloader used to load Hive metastore
client will " +
+ "not explicitly load Hadoop classes. Instead, Hadoop classes
loaded by the classloader " +
+ "that loads Spark will be used.")
+ .booleanConf
+ .createWithDefault(false)
--- End diff --
@marmbrus I am setting this conf to false by default, which changes the
behavior (our master always share hadoop clsses).
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