这就是我在toDebugString中使用scala时得到的结果。a: org.apache.spark.rdd.RDD[Int] = MappedRDD[3] at distinct at <console>:12
res0: String = | ShuffledRDD[2] at distinct at
Sites:RPAs: OK WARNING: Storage group DR_UCS_01-08 contains both replicated andunreplicated volumes. ; CS_TX WARNING: Storage group DR_UCS_31-38 contains both <e