wangyum commented on a change in pull request #25542:
[SPARK-28840][SQL][test-hadoop3.2]conf.getClassLoader in SparkSQLCLIDriver
should be avoided as it returns the UDFClassLoader which is created by Hive
URL: https://github.com/apache/spark/pull/25542#discussion_r316600471
##########
File path:
sql/hive-thriftserver/src/main/scala/org/apache/spark/sql/hive/thriftserver/SparkSQLCLIDriver.scala
##########
@@ -140,7 +141,7 @@ private[hive] object SparkSQLCLIDriver extends Logging {
// Hadoop-20 and above - we need to augment classpath using hiveconf
// components.
// See also: code in ExecDriver.java
- var loader = conf.getClassLoader
+ var loader = orginalClassLoader
Review comment:
I think this is a correct fix. Another approach is add the Spark jars to
`Utilities.addToClassPath` to make `UDFClassLoader` work:
```scala
val sparkJars = sparkConf.get(org.apache.spark.internal.config.JARS)
if (sparkJars.nonEmpty || StringUtils.isNotBlank(auxJars)) {
loader = Utilities.addToClassPath(loader, sparkJars.toArray ++
StringUtils.split(auxJars, ","))
}
```
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