How can I know spark-core version?
That version you are mentioning denotes which version of Scala you want to use for the spark-core.
You need to check Scala's version on your cluster to know if it's 2.10 that you need or 2.11.
That version you are mentioning denotes which version of Scala you want to use for the spark-core.
You need to check Scala's version on your cluster to know if it's 2.10 that you need or 2.11.