spark-submit--conf"spark.executorEnv.JAVA_HOME=/path/to/java/version"\--conf"spark.driverEnv.JAVA_HOME=/path/to/java/version"\your_spark_application.py 1. 2. 3. 注释: spark.executorEnv.JAVA_HOME: 这个配置项设置了 executor 进程中的 JAVA_HOME。 spark.driverEnv.JAVA_HOME: 这个配置项设置...
按Win+R,输入cmd进入dos界面 输入java –version 出现如下界面说明成功。 Maven 下载 https:///download.cgi 安装 下载之后解压到(目录可自己定)D:\Program Files\apache-maven-3.8.5 配置 并创建本地maven仓库地址((目录可自己定))D:\Program Files\apache-maven-3.8.5\resp 修改配置文件D:\Program Files\ap...
--Spark dependency End--><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>5.1.47</version></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><version>1.18.12</version><scope>provided</scope></dependency><dependenc...
import org.apache.spark.api.java.function.Function2; import org.apache.spark.api.java.function.PairFunction; import scala.Tuple2; import java.util.Arrays; import java.util.Iterator;publicclassMyJavaWordCount {publicstaticvoidmain(String[] args) {//参数检测if(args.length>2){ System.err.println(...
*/importorg.apache.spark.api.java.*;importorg.apache.spark.SparkConf;importorg.apache.spark.api.java.function.Function;publicclassSimpleApp{publicstaticvoidmain(String[]args){String logFile="file:///opt/spark-2.1.0-bin-hadoop2.7/README.md";// Should be some file on your systemSparkConf conf...
Spark的job都是JVM(JavaVirtual Machine)的进程,所以在安装Spark之前需要确保已经安装好了JDK(Java Developer Kit)。 在终端Shell输入:java -version 若返回某个Java的版本,代表已经OK了; 不然,需要自己上网下载安装JDK,方法如下: 1)登陆Oracle官网的下载页面:https://www.oracle.com/technetwork/java/javase/downlo...
java.lang.OutOfMemoryError: GC overhead limit exceeded。 Cannot allocate memory。 The job has been killed by "OOM Killer", please check your job's memory usage。 解决方案: 设置Executor内存。 参数:spark.executor.memory。 参数说明:代表每个Executor的内存。通常与spark.executor.cores保持1:4设置即可...
This article uses Java version 8.0.202. IntelliJ IDEA. This article uses IntelliJ IDEA Community 2018.3.4. Azure Toolkit for IntelliJ. See Installing the Azure Toolkit for IntelliJ. Install Scala plugin for IntelliJ IDEA Steps to install the Scala plugin: Open IntelliJ IDEA. On the welcome ...
基于maven创建一个java应用sparkwordcount,pom.xml的内容如下: <?xml version="1.0"encoding="UTF-8"?><projectxmlns="http://maven.apache.org/POM/4.0.0"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/ma...
java -version # 返回结果示例如下。 openjdk version "1.8.0_322" OpenJDK Runtime Environment (build 1.8.0_322-b06) OpenJDK 64-Bit Server VM (build 25.322-b06, mixed mode) 配置Spark环境变量。 获取Spark客户端包解压后的路径。图示如下,表明包所在路径为/home/spark-2.3.0-odps0.33.0。请以实际...