【Hadoop】YARN伪分布式部署和MapReduce案例
$ pwd /opt/software/hadoop-2.8.1/etc/hadoop$ cp mapred-site.xml.template mapred-site.xml
$ vi mapred-site.xml
mapreduce.framework.name
yarn
$ vi yarn-site.xml
yarn.nodemanager.aux-services
mapreduce_shuffle
$ cd /opt/software/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
$ 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
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