详情请参考:

http://my.oschina.net/leejun2005/blog/288136

hadoop下载

wget http://apache.fayea.com/hadoop/common/hadoop-2.7.2/hadoop-2.7.2.tar.gz

安装步骤: 参考

http://www.open-open.com/lib/view/open1435761287778.html

和

http://blog.csdn.net/greensurfer/article/details/39450369

常用命令验证:

yum install 安装的java环境路径

export JAVA_HOME=/usr/lib/jvm/java-1.7.0-openjdk.x86_64/

./bin/hdfs namenode -format

./start-dfs.sh 

./stop-dfs.sh 

/usr/local/hadoop/bin/hadoop dfsadmin -report

jps