Github user echarles commented on the issue:
https://github.com/apache/zeppelin/pull/2637
@matyix If my tests are correct, for now, we can not set `spark.app.name`
and `spark.kubernetes.driver.pod.name` (if you set them, the driver will not be
found by zeppelin).
Upon that is not user-friendly, the side effect is that pod driver and
executors names start with `null-...`.
IMHO it is a matter of passing the correct parameters to spark-submit
depending on the presence or not of those properties.
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