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7 YARN安装过程
在安装HDFS的基础上安装YARN
1)修改mapred-site.xml文件,配置MapReduce
<property> <name>mapreduce.framework.name</name> <value>yarn</value> </property> <property> <name>mapreduce.jobhistory.address</name> <value>master:10020</value> </property> <property> <name>mapreduce.jobhistory.webapp.address</name> <value>master:19888</value> </property>
2)修改yarn-env.sh
修改JAVA_HOME值(export JAVA_HOME=/usr/local/java/jdk1.7.0_79)
3)修改yarn-site.xml
配置ResourceManager
<property> <name>yarn.resourcemanager.address</name> <value>master:8032</value> </property> <property> <name>yarn.resourcemanager.scheduler.address</name> <value>master:8030</value> </property> <property> <name>yarn.resourcemanager.resource-tracker.address</name> <value>master:8031</value> </property> <property> <name>yarn.resourcemanager.admin.address</name> <value>master:8033</value> </property> <property> <name>yarn.resourcemanager.webapp.address</name> <value>master:8088</value> </property>
配置NodeManager
<property>
<name>yarn.resourcemanager.hostname</name>
<value>master</value>
</property>
<property>
<name>yarn.nodemanager.aux-services</name>
<value>mapreduce_shuffle</value>
</property>
<property>
<name>yarn.nodemanager.aux-services.mapreduce.shuffle.class</name>
<value>org.apache.hadoop.mapred.ShuffleHandler</value>
</property>
4)启动YARN
root@master:/usr/local/hadoop# start-yarn.sh
master有如下进程:
slaves有如下进程:
5)运行wordcount验证
hadoop jar share/hadoop/mapreduce/hadoop-mapreduce-examples-2.4.0.jar wordcount /input /output
运行jar包的命令可参考官网,如下图:
运行截图如下:
查看结果
至此,hadoop集群已全部配置完成。
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原文地址:http://www.cnblogs.com/lalaxiaoming/p/5554285.html