今天在安裝hadoop後,啓動start-yarn.sh後,nodemanager起不起來,後來查看DN節點的日誌,報瞭如下一個錯誤:java
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
解決辦法:
修改yarn-site.xml文件:node
<property>
<name>yarn.nodemanager.aux-services</name>
<value>mapreduce_shuffle</value> </property>
是因爲yarn.nodemanager.aux-services配置錯誤致使。web