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February 22, 2018 04:48
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spark-assignment not complete
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///////question 2 | |
val x = sc.parallelize(List(1,1,2,3,4).distinct) | |
x: org.apache.spark.rdd.RDD[Int] = ParallelCollectionRDD[0] at parallelize at <console>:24 | |
scala> x.collect | |
res0: Array[Int] = Array(1, 2, 3, 4) | |
scala> val y = sc.parallelize(List(1,2,3,4)) | |
y: org.apache.spark.rdd.RDD[Int] = ParallelCollectionRDD[1] at parallelize at <console>:24 | |
scala> val z = x.zip(y) | |
z: org.apache.spark.rdd.RDD[(Int, Int)] = ZippedPartitionsRDD2[2] at zip at <console>:28 | |
scala> z.collect | |
res1: Array[(Int, Int)] = Array((1,1), (2,2), (3,3), (4,4)) | |
////////question 1 | |
scala> val line = sc.parallelize("Hello,world") | |
line: org.apache.spark.rdd.RDD[Char] = ParallelCollectionRDD[14] at parallelize at <console>:24 | |
scala> val line = sc.parallelize(List("Hello,world")) | |
line: org.apache.spark.rdd.RDD[String] = ParallelCollectionRDD[15] at parallelize at <console>:24 |
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