Github user liancheng commented on a diff in the pull request:
https://github.com/apache/spark/pull/2887#discussion_r19462828
--- Diff:
sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveContext.scala ---
@@ -288,8 +296,15 @@ class HiveContext(sc: SparkContext) extends
SQLContext(sc) {
val cmd_1: String = cmd_trimmed.substring(tokens(0).length()).trim()
val proc: CommandProcessor =
HiveShim.getCommandProcessor(Array(tokens(0)), hiveconf)
+ // Makes sure the session represented by the `sessionState` field is
activated. This implies
+ // Spark SQL Hive support uses a single `SessionState` for all Hive
operations and breaks
+ // session isolation under multi-user scenarios (i.e.
HiveThriftServer2).
+ // TODO Fix session isolation
+ SessionState.start(sessionState)
+
proc match {
case driver: Driver =>
+ driver.init()
--- End diff --
@zhzhan This line was removed in #2241. Is there any reason behind?
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