Github user Leemoonsoo commented on the pull request:
https://github.com/apache/incubator-zeppelin/pull/264#issuecomment-136437760
@felixcheung
> Is this a bug:
> ```
if (!key.startsWith("spark.") || !val.trim().isEmpty()) {
logger.debug(String.format("SparkConf: key = [%s], value = [%s]",
key, val));
conf.set(key, val);
}
```
> Shouldn't it say `if (key.startsWith("spark.")`?
I think it's not a bug. Designed to not pass empty value when the key
starts with "spark."
This unittest might helpful to understand.
https://github.com/apache/incubator-zeppelin/blob/master/spark/src/test/java/org/apache/zeppelin/spark/SparkInterpreterTest.java#L168
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