AngersZhuuuu commented on a change in pull request #26141:
URL: https://github.com/apache/spark/pull/26141#discussion_r412156053
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File path:
sql/hive-thriftserver/src/main/scala/org/apache/spark/sql/hive/thriftserver/SparkExecuteStatementOperation.scala
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@@ -242,6 +242,10 @@ private[hive] class SparkExecuteStatementOperation(
val executionHiveClassLoader = sqlContext.sharedState.jarClassLoader
Thread.currentThread().setContextClassLoader(executionHiveClassLoader)
Review comment:
> Even in sync mode, we don't use the classloader of the current thread?
In code I mentioned in description, it will use SessionState's HiveConf's
ClassLoader.
That's the problem, when it execute in background thread, it will use
HiveClientImpl 's SessionState, and the corresponding classLoader is
`executionHiveClassLoader`
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