註：標示“三臺主機”的表示要在三臺電腦上都做該操作，“master節點”表示只在mdw主機上操作
1、關閉防火墻(三臺主機)(學習時可以直接關閉，正式環境是通過開放端口)
service iptables stop 停止防火墻服務，重啟電腦後仍然會開啟
chkconfig iptables off 關閉防火墻服務開機啟動，重啟後生效
可以兩個命令結合使用避免重啟

2、關閉SELINUX(三臺主機)
修改/etc/selinux/config 中的SELINUX="" 為 disabled

3、修改hosts文件(三臺主機)
在hosts文件中添加或修改一下內容
192.168.10.200 master
192.168.10.201 slave1
192.168.10.202 slave2

由於我以前安裝greenplum時已經修改過hosts文件，所以我直接追加相應的解析名：
192.168.10.200 mdw master
192.168.10.201 sdw1 slave1
192.168.10.202 sdw2 slave2

greendplum安裝方法：http://blog.csdn.net/gnail_oug/article/details/46945283

添加之後，可以通過ping命令測試是否正確，如：ping slave1 測試是否能訪問slave1節點

4、配置java環境(三臺主機)

上傳jdk文件並授權之後，執行安裝配置
[[email protected] temp]# . /jdk-6u45-linux-i586-rpm.bin
http://www.foooooot.com/userindex/837551/
http://www.foooooot.com/userindex/837538/
http://www.foooooot.com/userindex/837529/
http://www.foooooot.com/userindex/837051/
http://www.foooooot.com/userindex/837049/
http://www.foooooot.com/userindex/837048/
http://www.foooooot.com/userindex/837047/
http://www.foooooot.com/userindex/837046/
http://www.foooooot.com/userindex/837045/
http://www.foooooot.com/userindex/837044/
http://www.foooooot.com/userindex/837042/
http://www.foooooot.com/userindex/837041/
http://www.foooooot.com/userindex/837040/
http://www.foooooot.com/userindex/837035/
http://www.foooooot.com/userindex/837034/
http://www.foooooot.com/userindex/837033/
http://www.foooooot.com/userindex/837032/
http://www.foooooot.com/userindex/837031/
http://www.foooooot.com/userindex/837030/
http://www.foooooot.com/userindex/837029/
http://www.foooooot.com/userindex/837028/
http://www.foooooot.com/userindex/837025/
http://www.foooooot.com/userindex/837024/
http://www.foooooot.com/userindex/837022/
http://www.foooooot.com/userindex/837020/
http://www.foooooot.com/userindex/837019/
http://www.foooooot.com/userindex/837018/
http://www.foooooot.com/userindex/837017/
http://www.foooooot.com/userindex/837015/
http://www.foooooot.com/userindex/837014/
http://www.foooooot.com/userindex/837012/
http://www.foooooot.com/userindex/837011/
http://www.foooooot.com/userindex/837009/
http://www.foooooot.com/userindex/837008/
http://www.foooooot.com/userindex/837006/
http://www.foooooot.com/userindex/837004/
http://www.foooooot.com/userindex/837003/
http://www.foooooot.com/userindex/837002/
http://www.foooooot.com/userindex/837001/
http://www.foooooot.com/userindex/836998/
http://www.foooooot.com/userindex/836996/
http://www.foooooot.com/userindex/836995/
http://www.foooooot.com/userindex/836994/
http://www.foooooot.com/userindex/836993/
http://www.foooooot.com/userindex/836992/
http://www.foooooot.com/userindex/836991/
http://www.foooooot.com/userindex/836990/
http://www.foooooot.com/userindex/836989/
http://www.foooooot.com/userindex/836988/
http://www.foooooot.com/userindex/836987/
http://www.foooooot.com/userindex/836986/
http://www.foooooot.com/userindex/836985/
http://www.foooooot.com/userindex/836984/
http://www.foooooot.com/userindex/836983/
http://www.foooooot.com/userindex/836982/
http://www.foooooot.com/userindex/836980/
http://www.foooooot.com/userindex/836979/
http://www.foooooot.com/userindex/836978/
http://www.foooooot.com/userindex/836977/
http://www.foooooot.com/userindex/836976/
http://www.foooooot.com/userindex/836974/
http://www.foooooot.com/userindex/836973/
http://www.foooooot.com/userindex/836971/
http://www.foooooot.com/userindex/836970/
http://www.foooooot.com/userindex/836969/
http://www.foooooot.com/userindex/836968/
http://www.foooooot.com/userindex/836967/
http://www.foooooot.com/userindex/836966/
http://www.foooooot.com/userindex/836965/
http://www.foooooot.com/userindex/836964/
http://www.foooooot.com/userindex/836963/
http://www.foooooot.com/userindex/836961/
http://www.foooooot.com/userindex/836960/
http://www.foooooot.com/userindex/836959/
http://www.foooooot.com/userindex/836957/
http://www.foooooot.com/userindex/836956/
http://www.foooooot.com/userindex/836953/
http://www.foooooot.com/userindex/836951/
http://www.foooooot.com/userindex/836950/
http://www.foooooot.com/userindex/836948/
http://www.foooooot.com/userindex/836947/
http://www.foooooot.com/userindex/836946/
http://www.foooooot.com/userindex/836944/
http://www.foooooot.com/userindex/836943/
http://www.foooooot.com/userindex/836941/
http://www.foooooot.com/userindex/836940/
http://www.foooooot.com/userindex/836939/
http://www.foooooot.com/userindex/836938/
http://www.foooooot.com/userindex/836936/
http://www.foooooot.com/userindex/836935/
http://www.foooooot.com/userindex/836933/
http://www.foooooot.com/userindex/836932/
http://www.foooooot.com/userindex/836931/
http://www.foooooot.com/userindex/836930/
http://www.foooooot.com/userindex/836929/
http://www.foooooot.com/userindex/836928/
http://www.foooooot.com/userindex/836925/
http://www.foooooot.com/userindex/836924/
http://www.foooooot.com/userindex/836923/
http://www.foooooot.com/userindex/836920/
http://www.foooooot.com/userindex/836918/
http://www.foooooot.com/userindex/836917/
http://www.foooooot.com/userindex/836916/
http://www.foooooot.com/userindex/836915/
http://www.foooooot.com/userindex/836914/
http://www.foooooot.com/userindex/836913/
http://www.foooooot.com/userindex/836911/
http://www.foooooot.com/userindex/836910/
http://www.foooooot.com/userindex/836909/
http://www.foooooot.com/userindex/836908/
http://www.foooooot.com/userindex/836907/
http://www.foooooot.com/userindex/836906/
http://www.foooooot.com/userindex/836905/
http://www.foooooot.com/userindex/836904/
http://www.foooooot.com/userindex/836903/
http://www.foooooot.com/userindex/836901/
http://www.foooooot.com/userindex/836900/
http://www.foooooot.com/userindex/836898/
http://www.foooooot.com/userindex/836897/
http://www.foooooot.com/userindex/836896/
http://www.foooooot.com/userindex/836895/
http://www.foooooot.com/userindex/836894/
http://www.foooooot.com/userindex/836892/
http://www.foooooot.com/userindex/836891/
http://www.foooooot.com/userindex/836890/
http://www.foooooot.com/userindex/836889/
http://www.foooooot.com/userindex/836887/
http://www.foooooot.com/userindex/836886/
http://www.foooooot.com/userindex/836885/
http://www.foooooot.com/userindex/836884/
http://www.foooooot.com/userindex/836883/
http://www.foooooot.com/userindex/836881/
http://www.foooooot.com/userindex/836880/
http://www.foooooot.com/userindex/836879/
http://www.foooooot.com/userindex/836875/
http://www.foooooot.com/userindex/836874/
http://www.foooooot.com/userindex/836873/
http://www.foooooot.com/userindex/836872/
http://www.foooooot.com/userindex/836871/
http://www.foooooot.com/userindex/836869/
http://www.foooooot.com/userindex/836868/
http://www.foooooot.com/userindex/836867/
http://www.foooooot.com/userindex/836865/
http://www.foooooot.com/userindex/836864/
http://www.foooooot.com/userindex/836863/
http://www.foooooot.com/userindex/836862/
http://www.foooooot.com/userindex/836861/
http://www.foooooot.com/userindex/836859/
http://www.foooooot.com/userindex/836857/
http://www.foooooot.com/userindex/836855/
http://www.foooooot.com/userindex/836852/
http://www.foooooot.com/userindex/836851/
http://www.foooooot.com/userindex/836849/
http://www.foooooot.com/userindex/836847/
http://www.foooooot.com/userindex/836845/
http://www.foooooot.com/userindex/836844/
http://www.foooooot.com/userindex/836841/

驗證jdk安裝
[[email protected] temp]# java -version
java version "1.6.0_45"
Java(TM) SE Runtime Environment (build 1.6.0_45-b06）
Java HotSpot(TM) Client VM (build 20.45-b01, mixed mode, sharing)
5、創建hadoop用戶，並設置密碼(三臺主機)
[[email protected] temp]# useradd hadoop

[[email protected] temp]# passwd hadoop

在VMware裏安裝三臺Linux虛擬機(我使用的是redhat) 2