概述:本文介绍YARN环境配置,并实现塞缪尔·厄尔曼《青春》的词频统计
1、修改mapred-site.xml
cd app/hadoop-2.6.0-cdh5.7.0/etc/hadoop
cp mapred-site.xml.template mapred-site.xml
<configuration>
<property>
<name>mapreduce.framework.name</name>
<value>yarn</value>
</property>
</configuration>
2、修改yarn-site.xml
<configuration>
<property>
<name>yarn.nodemanager.aux-services</name>
<value>mapreduce_shuffle</value>
</property>
</configuration>
3、启动yarn
cd /root/app/hadoop-2.6.0-cdh5.7.0/sbin
./start-yarn.sh
#查看进程 ResourceManager NodeManager
jps
#验证