def main(args: Array[String]) { val spark=SparkSession .builder .master("local") .appName("SparkTC") .getOrCreate() val slices=if(args.length >0) args(0).toIntelse2vartc =spark.sparkContext.parallelize(generate
Int.MaxValue).toInt//avoid overflow (为避免溢出,n不超过int的最大值 )val count = spark.parallelize(1until n, slices).map { i =>//计数val x = random *2-1//小于1的随机数val y = random *2-1//小于1的随机数if(x*x + y*y <1)1else0//点到圆心的的值,小于1计数一次...
spark.read.option("multiline", "true").json("/path") 该语句没有任何问题,并加载了数据以引发数据框架。 是否有类似的方法来加载JSON变量的数据? 即使所有值都没有正常化,也可以。 Edit: 发现问题可能是由于JSON中存在的真实和错误(bool值),当我试图使用创建的aTaframe python作为变量作为true and False...
3、熟悉C++、python中的一种或多种编程技术,编程能力强,了解大数据处理技术(hive/spark/flink),善于学习应用业界领先数据架构和技术; 4、对AI大模型类产品有好奇心,学习适应能力强,有大模型/多模态大模型微调/对齐经验加分;有顶会paper加分有意的大佬求私戳～...
spark-1.6.1-bin-hadoop2.6里Basic包下的SparkPageRank.scala /** Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. ...
spark-1.6.1-bin-hadoop2.6里Basic包下的JavaTC.java /** Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. ...
import org.apache.spark.api.java.function.Function; import org.apache.spark.api.java.function.Function2; import java.util.ArrayList; import java.util.List;/** * Computes an approximation to pi * Usage: JavaSparkPi [slices]*/publicfinalclassJavaSparkPi {publicstaticvoidmain(String[] args) thro...