Github user minahlee commented on the issue:
https://github.com/apache/zeppelin/pull/1195
After I look close the pom files, I don't see clear reason why
spark.version is specified in scala-2.11 and scala-2.10 profiles.
https://github.com/apache/zeppelin/blob/master/spark-dependencies/pom.xml#L347
https://github.com/apache/zeppelin/blob/master/r/pom.xml#L386
https://github.com/apache/zeppelin/blob/master/r/pom.xml#L398
And I think it's always good to ship default spark version as the latest
one. Can we also update below lines?
https://github.com/apache/zeppelin/blob/master/spark-dependencies/pom.xml#L39
https://github.com/apache/zeppelin/blob/master/spark/pom.xml#L41
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