Jeff Zhang created ZEPPELIN-2830:
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Summary: DELETE files under interpreter/{interpreter_name} before
copying thing there
Key: ZEPPELIN-2830
URL: https://issues.apache.org/jira/browse/ZEPPELIN-2830
Project: Zeppelin
Issue Type: Improvement
Reporter: Jeff Zhang
When we upgrading jars, if we don't delete the old jars under this folder. we
would have multiple versions of jars there, and cause weird issue due to jar
conflicts.
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