GitHub user zjffdu opened a pull request:
https://github.com/apache/zeppelin/pull/2622
ZEPPELIN-2990. Matplotlib sometimes fails in IPythonInterpreter
### What is this PR for?
Trivial fix for matplotlib fail in `IPythonInterpreter`. Besides that, I
also make some minor changes on zeppelin code to improve logging.
### What type of PR is it?
[Bug Fix]
### Todos
* [ ] - Task
### What is the Jira issue?
* https://issues.apache.org/jira/browse/ZEPPELIN-2990
### How should this be tested?
UT is added.
### Screenshots (if appropriate)
### Questions:
* Does the licenses files need update? No
* Is there breaking changes for older versions? No
* Does this needs documentation? No
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/zjffdu/zeppelin ZEPPELIN-2990
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/zeppelin/pull/2622.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #2622
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commit 8f696cd4274cc15b700e8b86879e48747e227637
Author: Jeff Zhang <[email protected]>
Date: 2017-10-13T07:41:01Z
ZEPPELIN-2990. Matplotlib sometimes fails in IPythonInterpreter
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