score:37
You should import the implicit conversions from SparkContext:
import org.apache.spark.SparkContext._
They use the 'pimp up my library' pattern to add methods to RDD's of specific types. If curious, see SparkContext:1296
score:0
If you use maven on ScalaIDE I just solved the problem by updating the dependency from spark-streaming version 1.2 to version 1.3.
score:0
Actually, you can find it in PairRDDFunctions class. PairRDDFunctions is a class contains extra functions available on RDDs of (key, value) pairs through an implicit conversion.
https://spark.apache.org/docs/2.1.0/api/scala/index.html#org.apache.spark.rdd.PairRDDFunctions
Source: stackoverflow.com
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