wangyum commented on a change in pull request #25775:
[WIP][SPARK-29015][SQL][test-hadoop3.2] fix bug for jdk11, can't use 'add jar'
jar's class as create table serde
URL: https://github.com/apache/spark/pull/25775#discussion_r324580153
##########
File path:
sql/hive/src/main/scala/org/apache/spark/sql/hive/execution/HiveTableScanExec.scala
##########
@@ -120,7 +121,16 @@ case class HiveTableScanExec(
HiveShim.appendReadColumns(hiveConf, neededColumnIDs, output.map(_.name))
- val deserializer =
tableDesc.getDeserializerClass.getConstructor().newInstance()
+ val currentState = SessionState.get()
+ val deserializer = if (currentState != null) {
+ val originClassLoader = currentState.getConf.getClassLoader
+
currentState.getConf.setClassLoader(sparkSession.sharedState.jarClassLoader)
Review comment:
We fixed `CliSessionState` class loader issue when constructing it by
[SPARK-28840](https://issues.apache.org/jira/browse/SPARK-28840), so could we
fix `SessionState` class loader issue when constructing `SessionState`?
Hive related code:
https://github.com/apache/hive/blob/rel/release-2.3.6/ql/src/java/org/apache/hadoop/hive/ql/session/SessionState.java#L399
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