Tao Wang created SPARK-9596:
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Summary: We better not load Hadoop classes again
Key: SPARK-9596
URL: https://issues.apache.org/jira/browse/SPARK-9596
Project: Spark
Issue Type: Bug
Components: SQL
Reporter: Tao Wang
Some hadoop classes contains global information such as authentication in
UserGroupInformation. If we load them again in `IsolatedClientLoader`, the
message they carry will be dropped.
So we should treat hadoop classes as "shared" too.
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