Github user felixcheung commented on the issue:
https://github.com/apache/zeppelin/pull/1672
as an aside, I'd update the JIRA/PR - it might not be obvious what "when
SPARK_HOME is set" means. If external Spark is broken then I think it is a much
much serious problem :)
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---