Github user yywwd commented on the issue:
https://github.com/apache/zeppelin/pull/2231
@zjffdu This issue is not related to the codes run in zeppelin. I mean, I
cannot guarantee âUsing Livy interpreter in Zeppelinâ and "Using
Programmatic API" work well at the same time.
Using Zeppelin, I just write codes like this:
```
%livy.pyspark
sc.version
```
just test whether it works.
Using Programmatic API, I just use official examples:
https://github.com/apache/incubator-livy/blob/master/examples/src/main/python/pi_app.py
**BUT!!!**
In **livy.spark.master yarn-cluster** mode zeppelin works, programmatic API
cannot work
In **livy.spark.master yarn** mode (the default mode), programmatic API
works, zeppelin cannot work
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