sandeep-katta commented on a change in pull request #25977:
[SPARK-29268][SQL]isolationOn value is wrong in case of
spark.sql.hive.metastore.jars != builtin
URL: https://github.com/apache/spark/pull/25977#discussion_r331858678
##########
File path: sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveUtils.scala
##########
@@ -414,7 +415,7 @@ private[spark] object HiveUtils extends Logging {
hadoopConf = hadoopConf,
execJars = jars.toSeq,
config = configurations,
- isolationOn = true,
+ isolationOn = !isCliSessionState(),
Review comment:
@wangyum if user is using !built-in hive then isolation should not be
turned off, so this issue has to solved in different ways .
1. Use in memory derby database. Configure hive-site.xml as below
```
<property>
<name>javax.jdo.option.ConnectionURL</name>
<value>jdbc:derby:memory:/opt/BigdataTools/spark-2.4.4-bin-hadoop2.7/metastore_db;create=true</value>
<description>JDBC connect string for a JDBC metastore</description>
</property>
```
2. Stop the derby instance started by
[SparkSQLCLIDriver](https://github.com/apache/spark/blob/master/sql/hive-thriftserver/src/main/scala/org/apache/spark/sql/hive/thriftserver/SparkSQLCLIDriver.scala#L136)
Something like below
@yaooqinn what's your suggesstion
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