Github user zsxwing commented on a diff in the pull request:
https://github.com/apache/spark/pull/16826#discussion_r104606859
--- Diff:
sql/hive/src/main/scala/org/apache/spark/sql/hive/client/HiveClientImpl.scala
---
@@ -278,6 +278,8 @@ private[hive] class HiveClientImpl(
state.getConf.setClassLoader(clientLoader.classLoader)
// Set the thread local metastore client to the client associated with
this HiveClientImpl.
Hive.set(client)
+ // Replace conf in the thread local Hive with current conf
+ Hive.get(conf)
--- End diff --
Because of reusing`IsolatedClientLoader.cachedHive`. Without this line, it
may use an out-of-date HiveConf. The failed test is
`HiveSparkSubmitSuite.test("SPARK-18360: default table path of tables in
default database should depend on the " +
"location of default database")`
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