sc.parallelize([(1, 2), (1, 3), (2, 3), (2, 4), (3, 1)]).reduceByKey(lambda x, y : x + y).count().collect() 操作中会产生多少个 stage()
发布于 2022-03-03 17:02:30
sc.parallelize([(1, 2), (1, 3), (2, 3), (2, 4), (3, 1)]).reduceByKey(lambda x, y : x + y).count().collect()操作中会产生多少个 stage()
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