安装CDH5 hadoop2.3.0 NodeManager 没有启动

今天在安装hadoop后,启动start-yarn.sh后,nodemanager起不起来,后来查看DN节点的日志,报了以下一个错误:

 FATAL org.apache.hadoop.yarn.server.nodemanager.NodeManager: Error starting NodeManager  
java.lang.IllegalArgumentException: The ServiceName: mapreduce.shuffle set in yarn.nodemanager.aux-services is invalid.The valid service name should only  
 contain a-zA-Z0-9_ and can not start with numbers 



解决办法:
修改yarn-site.xml文件:

<property>  
        <name>yarn.nodemanager.aux-services</name>  
        <value>mapreduce_shuffle</value>  
</property>  



是由于yarn.nodemanager.aux-services配置错误导致。

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