错误信息: java.lang.Exception: java.lang.ArrayIndexOutOfBoundsException: 1 at org.apache.hadoop.mapred.LocalJobRunner$Job.runTasks(LocalJobRunner.java:492) at org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:552)Caused by: java.l…
We've seen the internals of MapReduce in the last post. Now we can make a little change to the WordCount and create a JAR for being executed by Hadoop. If we look at the result of the WordCount we ran before, the lines of the file are only split by s…
错误如下 Error: java.lang.RuntimeException: java.lang.ClassNotFoundException: Class com.zhen.mr.RunJob$HotMapper not found at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:) at org.apache.hadoop.mapreduce.task.JobContextImpl.getMapperC…
执行命令:[root@hadoop102 mapreduce]# hadoop jar mapreduce2_maven.jar Filter 错误信息:Exception in thread "main" java.lang.ClassNotFoundException: Filter at java.net.URLClassLoader.findClass(URLClassLoader.java:382) at java.lang.ClassLoader.loadCla…
本文讲述使用IntelliJ IDEA打包Project的过程,即,打jar包. 环境:Mac OS X 10.9.5, IntelliJ IDEA 13.1.4, Hadoop 1.2.1 Hadoop放在虚拟机中,宿主机通过SSH连接,IDE和数据文件在宿主机.IDEA自身运行于JDK 1.8,IDEA工程及Hadoop使用JDK 1.6. 在本系列博文的第一篇,我因不会使用IDEA打jar包,不得不直接调试代码,遇到输入路径不存在问题.今天,我打了几次jar包,结果不都满意,默认情况,ID…
序:在开发storm项目时,提交项目jar包当把依赖的第三方jar包都打进去提交storm集群启动时报了发现多个同名的文件错误由此开始了一段对jar包的深刻理解之路. java.lang.RuntimeException: Found multiple defaults.yaml resources. You're probably bundling the Storm jars with your topology jar. [jar:file:/home/hadoop/app/storm/l…