Github user zjffdu commented on the issue:
https://github.com/apache/zeppelin/pull/1787
@bikassaha zeppelin use spark repl api heavily. And spark repl is not
stable as RDD/DataFrame api (It happens in spark 1.x), so it is possible to
have changes in spark repl for spark feature release. Another thing is that
zeppelin may need some update to support spark new features, so we need to
check spark version.
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