spark远程调试

先将下面代码打包
第一种方式
先backage然后打断点,然后Debug执行main方法
在idea中添加参数
①点击Run下的Edit Configurations
②配置Configuration页中的Program arguments选项，就可以在idea中传入参数，参数之间用空格隔开
如:file:///root/wc.txt(centos本地路径输入/root/wc.txt) file:///root/wc00(代表输出路径为/root/wc00),
如果是docker启动需要填写为hdfs路径
hdfs://192.168.1.101:9000/root/wc/input.txt hdfs://192.168.1.101:9000/root/wc00
Exception in thread “main” org.apache.hadoop.security.AccessControlException: Permission denied: user=Administrator, access=WRITE, inode="/root":root:supergroup:drwxr-xr-x
可能会出现这个异常参考
//设置用户访问权限这里用户名为hadoop的用户名请在代码中设置
System.setProperty(“user.name”,“bigdata”)
//或者采用下面方式
https://blog.csdn.net/xiaoshunzi111/article/details/52062640解决问题
执行代码如下:

package cn.itcast.spark.day1

import org.apache.spark.{SparkConf, SparkContext}

/**
  * Created by root on 2016/5/14.
  */
object WordCount {
  def main(args: Array[String]) {
    //非常重要，是通向Spark集群的入口
    val conf = new SparkConf().setAppName("WC")
    //拷贝绝对路径上去
  .setJars(Array("D:\\ideaWorkbase\\HelloSpark\\target\\hello-spark-1.0.jar"))
  //填写ip地址和端口号上去
  .setMaster("spark://192.168.1.101:7077")
    val sc = new SparkContext(conf)

    //textFile会产生两个RDD：HadoopRDD  -> MapPartitinsRDD
    sc.textFile(args(0)).cache()
      // 产生一个RDD ：MapPartitinsRDD
      .flatMap(_.split(" "))
      //产生一个RDD MapPartitionsRDD
      .map((_, 1))
      //产生一个RDD ShuffledRDD
      .reduceByKey(_+_)
      //产生一个RDD: mapPartitions
      .saveAsTextFile(args(1))
    sc.stop()
  }
}

pom文件如下:

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="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/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>cn.itcast.spark</groupId>
    <artifactId>hello-spark</artifactId>
    <version>1.0</version>

    <properties>
        <maven.compiler.source>1.7</maven.compiler.source>
        <maven.compiler.target>1.7</maven.compiler.target>
        <encoding>UTF-8</encoding>
        <scala.version>2.10.6</scala.version>
        <spark.version>1.6.1</spark.version>
        <hadoop.version>2.6.4</hadoop.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.scala-lang</groupId>
            <artifactId>scala-library</artifactId>
            <version>${scala.version}</version>
        </dependency>

        <dependency>
            <groupId>org.apache.spark</groupId>
            <artifactId>spark-core_2.10</artifactId>
            <version>${spark.version}</version>
        </dependency>

        <dependency>
            <groupId>org.apache.hadoop</groupId>
            <artifactId>hadoop-client</artifactId>
            <version>${hadoop.version}</version>
        </dependency>

        <dependency>
            <groupId>org.apache.spark</groupId>
            <artifactId>spark-sql_2.10</artifactId>
            <version>${spark.version}</version>
        </dependency>

        <dependency>
            <groupId>org.apache.spark</groupId>
            <artifactId>spark-streaming_2.10</artifactId>
            <version>${spark.version}</version>
        </dependency>

        <dependency>
            <groupId>org.apache.spark</groupId>
            <artifactId>spark-streaming-kafka_2.10</artifactId>
            <version>1.6.1</version>
        </dependency>

        <dependency>
            <groupId>org.apache.spark</groupId>
            <artifactId>spark-streaming-flume_2.10</artifactId>
            <version>${spark.version}</version>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.38</version>
        </dependency>

        <dependency>
            <groupId>redis.clients</groupId>
            <artifactId>jedis</artifactId>
            <version>2.8.1</version>
        </dependency>

    </dependencies>

    <build>
        <sourceDirectory>src/main/scala</sourceDirectory>
        <testSourceDirectory>src/test/scala</testSourceDirectory>
        <plugins>
            <plugin>
                <groupId>net.alchim31.maven</groupId>
                <artifactId>scala-maven-plugin</artifactId>
                <version>3.2.2</version>
                <executions>
                    <execution>
                        <goals>
                            <goal>compile</goal>
                            <goal>testCompile</goal>
                        </goals>
                        <configuration>
                            <args>
                                <arg>-make:transitive</arg>
                                <arg>-dependencyfile</arg>
                                <arg>${project.build.directory}/.scala_dependencies</arg>
                            </args>
                        </configuration>
                    </execution>
                </executions>
            </plugin>

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-shade-plugin</artifactId>
                <version>2.4.3</version>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>shade</goal>
                        </goals>
                        <configuration>
                            <filters>
                                <filter>
                                    <artifact>*:*</artifact>
                                    <excludes>
                                        <exclude>META-INF/*.SF</exclude>
                                        <exclude>META-INF/*.DSA</exclude>
                                        <exclude>META-INF/*.RSA</exclude>
                                    </excludes>
                                </filter>
                            </filters>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>


</project>