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1.为确保不出错误，设置yarn-env.sh中JAVA_HOME环境变量

JAVA_HOME=/opt/modules/jdk1.7.0_25

2.启动yarn

[root@hadoop-yarn hadoop-2.6.5]# sbin/yarn-daemon.sh start resourcemanager    [root@hadoop-yarn hadoop-2.6.5]# sbin/yarn-daemon.sh start nodemanager    [root@hadoop-yarn hadoop-2.6.5]# jps

3.yarn的web监控界面8088

export JAVA_HOME=/opt/modules/jdk1.7.0_25

6.运行测试示例

[root@hadoop-yarn hadoop-2.6.5]# bin/hadoop jar share/hadoop/mapreduce/hadoop-mapreduce-examples-2.6.5.jar grep /user/cyhp/input /user/cyhp/output2 'dfs[a-z.]+'

7.进入WEB监控

http://{ip}:8088/cluster/apps

8.WEB监控中查看history

[root@hadoop-yarn hadoop-2.6.5]# sbin/mr-jobhistory-daemon.sh start historyserver

9.关闭服务，只要把所有 start 改成 stop 即可

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