商用hadoop集群的配置命令分布

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角色	安装	hdfs配置	yarn配置	hdfs 格式化	启动yarn服务	启动hdfs服务
master	yum install hadoop-hdfs-namenode yum install hadoop-yarn-resourcemanager	core-site.xml hdfs-site.xml	mapred-site.xml yarn-site.xml	hdfs>hdfs namenode -format	root>service hadoop-yarn-resourcemanager start	root>service hadoop-hdfs-namenode start
slave	yum install hadoop-hdfs-datanode yum install hadoop-yarn-nodemanager	core-site.xml hdfs-site.xml	mapred-site.xml yarn-site.xml		root>service hadoop-yarn-nodemanager start	root>service hadoop-hdfs-namenode start
proxy	yum install hadoop-mapreduce-historyserver yum install hadoop-yarn-proxyserver	core-site.xml hdfs-site.xml	mapred-site.xml yarn-site.xml		root>service hadoop-mapreduce-historyserver start root>service hadoop-yarn-proxyserver start
client	yum install hadoop-client	core-site.xml hdfs-site.xml	mapred-site.xml yarn-site.xml

角色	hdfs本地存储目录	hdfs云存储目录	yarn本地存储目录
master	mkdir -p /data/dfs/nn chown hdfs:hadoop
slave	mkdir -p /data/dfs/dn chown hdfs:hadoop		mkdir -p /data/yarn/local mkdir -p /data/yarn/logs
proxy
client		hdfs dfs –mkdir /tmp hdfs dfs –mkdir /user/history hdfs dfs –mkdir /var/log/hadoop-yarn

hdfs本地存储目录，必须授权给用户hdfs:hadoop;yarn本地存储目录，必须授权给用户yarn:hadoop;一切目录设置均与xml文件对应！root用户只有安装、启动服务期限，没有hadoop执行权限。

Hdfs服务web地址	cMaster:50070
Yarn服务web地址	cMaster:8088
JobHistory服务web地址	cProxy:19888

建立私有账户joe

[root@iClient~]#adduser joe	本地新建joe用户
[root@iClient~]#passwd joe	更改joe密码
[hdfs@iClient~]#hdfs dfs –mkdir /user/joe	在hdfs建立joe的家目录
[hdfs@iClient~]#hdfs dfs –chown –R joe /user/joe	给家目录授权
[hdfs@iClient~]#sudo –u joe hdfs dfs –put /……/yourdata.txt joeInput	本地文件yourdata.txt上传至joeInput
[hdfs@iClient~]#sudo –u joe Hadoop jar /…/hadoo-mapreduce-example.jar pi 4 10000	执行例程的pi，4个map，做10000次。