The auxService:mapreduce_shuffle does not exist

The auxService:mapreduce_shuffle does not exist

今天在hadoop伪分布式环境搭建中出现如下报错：
The auxService:mapreduce_shuffle does not exist

解决办法：
修改yarn-site.xml 文件，如下：

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

重新格式化Hadoop即可。