在创建自定义的Mapper时候,编译正确,但上传到集群执行时出现错误: 11/16/05 22:53:16 INFO mapred.JobClient: Task Id : attempt_201111301626_0015_m_000000_0, Status : FAILED java.lang.RuntimeException: java.lang.ClassNotFoundException: actiondemo.MyJob$MapClass at org.apache.Hadoop.…
[root@h1 ~]# hadoop jar W1.jar hdfs://h1:9000/hello hdfs://h1:9000/cmd Exception in thread "main" java.lang.ClassNotFoundException: hdfs://h1:9000/hello at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:247) at org…