Using Livy with Spark
Scala Support
Livy supports Scala version 2.12.
For default Scala builds, Spark 3 with Scala 2.12, Livy automatically detects the correct Scala version and associated jar files.
If you require a different Spark-Scala combination, set livy.spark.scalaVersion
to the desired version so that Livy uses
the right jar files.