我是hadoop的新手,这是我的问题.我已经在3台机器的集群上配置了带有jdk1.7.60的hadoop 2.4.0.我能够执行hadoop的所有命令.现在我修改了wordcount示例并创建了jar文件.我已经在hadoop 1.2.1上使用这个jar文件执行并获得了结果.但是现在在hadoop 2.4.0上我没有得到任何结果.
用于执行的命令
$hadoop jar WordCount.jar WordCount /data/webdocs.dat /output
我从设置中得到以下消息:
14/06/29 19:35:18 INFO client.RMProxy: Connecting to ResourceManager at /192.168.2.140:8040
14/06/29 19:35:18 WARN mapreduce.JobSubmitter: Hadoop command-line option parsing not performed. Implement the Tool interface and execute your application with ToolRunner to remedy this.
14/06/29 19:35:19 INFO input.FileInputFormat: Total input paths to process : 1
14/06/29 19:35:19 INFO mapreduce.JobSubmitter: number of splits:12
14/06/29 19:35:19 INFO mapreduce.JobSubmitter: Submitting tokens for job: job_1403905542893_0004
14/06/29 19:35:19 INFO impl.YarnClientImpl: Submitted application application_1403905542893_0004
14/06/29 19:35:19 …