YARN环境搭建
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mapred-site.xml
<property>
<name>mapreduce.framework.name</name>
<value>yarn</value>
</property>
yarn-site.xml
<property>
<name>yarn.nodemanager.aux-services</name>
<value>mapreduce_shuffle</value>
</property>
启动yarn:sbin/start-yarn.sh
验证是否启动成功
jps
ResourceManager
NodeManager
web: http://hadoop001:8088
停止yarn: sbin/stop-yarn.sh
提交mr作业到yarn上运行: wc
/home/hadoop/app/hadoop-2.6.0-cdh5.7.0/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.6.0-cdh5.7.0.jar
hadoop jar /home/hadoop/app/hadoop-2.6.0-cdh5.7.0/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.6.0-cdh5.7.0.jar wordcount /input/wc/hello.txt /output/wc/
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