Top network posts

• 325 (Why) do we need to call cache or persist on a RDD
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• 68 Count number of rows in an RDD
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• 51 How to sort an RDD in Scala Spark?
• 48 In Apache Spark, why does RDD.union not preserve the partitioner?
• 45 How to assign unique contiguous numbers to elements in a Spark RDD
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