This may be a dumb question, but can someone explain how I should interpret
this DAG?
Please ignore the types of RDDs. Specifically, what do 2 parallel lines
(e.g. B) mean? What does a single parallel line with no previous single
parallel line (e.g.: A) signify?
(N) MappedRDD[3]
| ShuffledRDD[2]
+-(N) MappedRDD[1]
| ParallelCollectionRDD[0]
| ParallelCollectionRDD[0]
| ShuffledRDD[2] (A)
+-(N) MappedRDD[1]
| | ParallelCollectionRDD[0] (B)
| | ParallelCollectionRDD[0]
| ShuffledRDD[2]
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