1.配置文件及启动
[hadoop@hadoop000 hadoop]$ pwd /opt/software/hadoop-2.8.1/etc/hadoop [hadoop@hadoop000 hadoop]$ cp mapred-site.xml.template mapred-site.xml [hadoop@hadoop000 hadoop]$ vi mapred-site.xml <configuration> <property> <name>mapreduce.framework.name</name> <value>yarn</value> </property> </configuration> [hadoop@hadoop000 hadoop]$ vi yarn-site.xml <configuration> <property> <name>yarn.nodemanager.aux-services</name> <value>mapreduce_shuffle</value> </property> </configuration> [hadoop@hadoop000 hadoop]$ cd /opt/software/hadoop-2.8.1 [hadoop@hadoop000 hadoop-2.8.1]$ sbin/start-yarn.sh starting yarn daemons starting resourcemanager, logging to /opt/software/hadoop-2.8.1/logs/yarn-hadoop-resourcemanager-hadoop000.out 192.168.6.217: starting nodemanager, logging to /opt/software/hadoop-2.8.1/logs/yarn-hadoop-nodemanager-hadoop000.out [hadoop@hadoop000 hadoop-2.8.1]$ jps 10512 ResourceManager --Yarn的进程 10004 SecondaryNameNode 9655 NameNode 10936 Jps 9806 DataNode 10623 NodeManager --Yarn的进程 #Yarn的两个进程: ResourceManager （资源管理） NodeManager （节点管理） #可参考官网：http://hadoop.apache.org/docs/r2.8.4/hadoop-project-dist/hadoop-common/SingleCluster.html
2.Yarn网站测试
http://192.168.6.217:8088/cluster
3.MapReduce Job测试
[hadoop@hadoop000 hadoop-2.8.1]$ pwd /opt/software/hadoop-2.8.1 [hadoop@hadoop000 hadoop-2.8.1]$ find ./ -name "*example*" ./lib/native/examples ./share/hadoop/mapreduce/sources/hadoop-mapreduce-examples-2.8.1-test-sources.jar ./share/hadoop/mapreduce/sources/hadoop-mapreduce-examples-2.8.1-sources.jar ./share/hadoop/mapreduce/lib-examples ./share/hadoop/mapreduce/hadoop-mapreduce-examples-2.8.1.jar ./share/doc/hadoop/hadoop-mapreduce-examples ./share/doc/hadoop/hadoop-yarn/hadoop-yarn-common/apidocs/org/apache/hadoop/yarn/webapp/example ./share/doc/hadoop/hadoop-auth-examples ./share/doc/hadoop/api/org/apache/hadoop/examples ./share/doc/hadoop/api/org/apache/hadoop/security/authentication/examples ./etc/hadoop/ssl-server.xml.example ./etc/hadoop/ssl-client.xml.example [hadoop@hadoop000 hadoop-2.8.1]$ bin/hadoop jar ./share/hadoop/mapreduce/hadoop-mapreduce-examples-2.8.1.jar pi 5 10
4.结果解读
运行结果
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