*/publicSpark(String appName, String database){// TODO check what will happen if there is already in use the same app// namethis.sparkConfiguration =newSparkConf().setAppName(appName);this.javaContext =newJavaSparkContext(sparkConfiguration);this.hiveContext =newHiveContext(javaContext);// T...
JavaSparkContext context = new JavaSparkContext(sparkConf); JavaRDD<String> testRDD = context.textFile(testDataPath); JavaRDD<LabeledPoint> test = Util.createLabeledPointRDD(testRDD); final NaiveBayesModel model = NaiveBayesModel.load(context.sc(), savedModelPath); test.mapToPair((LabeledPoin...
JavaSparkContext jsc =newJavaSparkContext(conf); JavaPairRDD<String, String> pairRdd = jsc.parallelizePairs( Arrays.asList(newTuple2<String, String>("India","Asia"),newTuple2<String, String>("Germany","Europe"),newTuple2<String, String>("Japan","Asia"),newTuple2<String, Stri...
参考:https://blog.csdn.net/weixin_40137479/article/details/80320324 new SparkContext(conf)发生错误: 解决办法:将Scala2.11.x更换为Scala2.10.x File –> Other Setting
// 导入 Spark 相关的依赖importorg.apache.spark.SparkConf;importorg.apache.spark.api.java.JavaSparkContext;// 创建 SparkConf 对象SparkConfconf=newSparkConf().setAppName("example").setMaster("local");// 创建 JavaSparkContext 对象JavaSparkContextsc=newJavaSparkContext(conf); ...
__SparkContext__是spark功能的主要入口。 其代表与spark集群的连接，能够用来在集群上创建RDD、累加器...
后面那个英文字母多一些
Spark安装问题:ERROR SparkContext: Error initializing SparkContext. java.lang.reflect.InvocationTargetException,ERRORSparkContext:ErrorinitializingSparkContext.java.lang.reflect.InvocationTargetException问题背景:Java版本:1.8.0.291Spark版本:spark-3.2.0
单项选择题 当sc命令成功时,会显示。。。 A、JavaSparkContext ID B、不显示任何内容 C、Spark数据框ID D、一条运行成功的消息 E、返回码 点击查看答案
引用sparkcontext(sc)但是sparkcontext是不可序列化的。sparkcontext设计用于公开在驱动程序上运行的操作；...