Github user zjffdu commented on the issue:
https://github.com/apache/zeppelin/pull/3012
@jongyoul There's more thing needs to be done for upgrading py4j to 0.10.7.
py4j 0.10.7 introduce authentication mechanism for connecting gateway server,
so we also need to update PySparkInterperter & PythonInterpreter. I am doing
that now, if you don't mind, could you close this PR. ---
