Spark2.2 廣播變量broadcast原理及源碼剖析

實例 首先先來看一看broadcast的使用代碼:java val factor = List[Int](1,2,3); val factorBroadcast = sc.broadcast(factor) val nums = Array(1,2,3,4,5,6,7,8,9) val numsRdd = sc.parallelize(nums,3) val l
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