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2025-01-18 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Internet Technology >
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The process of Shuffle will be triggered during the reduceByKey operation of Spark. Before Shuffle, a local aggregation process will generate MapPartitionsRDD, then a specific Shuffle will generate ShuffledRDD, and then do a global aggregation to generate the result MapPartitionsRDD.
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