zjffdu opened a new pull request #3515: [ZEPPELIN-4396]. HvPlot is broken
URL: https://github.com/apache/zeppelin/pull/3515
### What is this PR for?
HvPlot is broken due to bug in `ipython_server.py`. IPython may produce
multiple types of output for one single python object. And the
zjffdu opened a new pull request #3514: [ZEPPELIN-4436]. Interpreter PID file
should contain interpreter group id
URL: https://github.com/apache/zeppelin/pull/3514
### What is this PR for?
Simple PR to include interpreter group id into the pid file.
### What type of PR is
Jeff Zhang created ZEPPELIN-4436:
Summary: Interpreter PID should be interpreter group id
Key: ZEPPELIN-4436
URL: https://issues.apache.org/jira/browse/ZEPPELIN-4436
Project: Zeppelin
Issue T