pyspark.RDD.partitionBy¶
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RDD.
partitionBy
(numPartitions, partitionFunc=<function portable_hash>)[source]¶ Return a copy of the RDD partitioned using the specified partitioner.
Examples
>>> pairs = sc.parallelize([1, 2, 3, 4, 2, 4, 1]).map(lambda x: (x, x)) >>> sets = pairs.partitionBy(2).glom().collect() >>> len(set(sets[0]).intersection(set(sets[1]))) 0