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JDK下载:jdk-7u65-linux-i586.tar.gz
http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html
Hadoop下载:hadoop-2.4.1.tar.gz
http://www.apache.org/dyn/closer.cgi/hadoop/common/
hadoop namenode -format
启动前关闭集群中所有机器的防火墙
service iptables stop
启动命令
start-all.sh
方式一:jps
方式二:hadoop dfsadmin -report
CentOS系统下Hadoop 2.4.1集群安装配置(简易版)
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原文地址:http://www.cnblogs.com/gw811/p/4608088.html