Hadoop 1.2.1 集群安装一

1：安装linux

2：修改机器名

hostname 显示主机名

[jifeng@localhost bin]$ hostname
localhost.sohudo
编辑主机名配置文件

[jifeng@localhost bin]$ vi /etc/sysconfig/network
NETWORKING=yes
HOSTNAME=localhost.sohudo

用root登录
[jifeng@localhost bin]$ su -
密码：
[root@localhost ~]# vi /etc/sysconfig/network
NETWORKING=yes
HOSTNAME=localhost.sohudo
~

把HOSTNAME修改为jifeng01

[jifeng@jifeng01 ~]$ hostname
jifeng01

3: 配置hosts文件

[jifeng@jifeng01 ~]$ su -
密码：
[root@jifeng01 ~]# vi /etc/hosts127.0.0.1   localhost localhost.sohudo
::1         localhost localhost.sohudo

后面加2行

10.3.7.212 jifeng01
10.3.7.214 jifeng02

"/etc/hosts" 4L, 120C written
[root@jifeng01 ~]#

[root@jifeng01 ~]# ping jifeng02
PING jifeng02 (10.3.7.214) 56(84) bytes of data.
64 bytes from jifeng02 (10.3.7.214): icmp_seq=1 ttl=64 time=0.577 ms
64 bytes from jifeng02 (10.3.7.214): icmp_seq=2 ttl=64 time=0.219 ms
64 bytes from jifeng02 (10.3.7.214): icmp_seq=3 ttl=64 time=0.419 ms
^C
--- jifeng02 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2740ms
rtt min/avg/max/mdev = 0.219/0.405/0.577/0.146 ms

测试OK

准备了3台虚拟机：

第一台:

[jifeng@jifeng01 ~]$ uname -a
Linux jifeng01 2.6.18-238.el5 #1 SMP Sun Dec 19 14:22:44 EST 2010 x86_64 x86_64 x86_64 GNU/Linux
[jifeng@jifeng01 ~]$ head -n 1 /etc/issue
Red Hat Enterprise Linux Server release 5.6 (Tikanga)
[jifeng@jifeng01 ~]$

第二台：

[jifeng@jifeng02 ~]$ uname -a
Linux jifeng02 2.6.32-358.el6.i686 #1 SMP Thu Feb 21 21:50:49 UTC 2013 i686 i686 i386 GNU/Linux
[jifeng@jifeng02 ~]$ cat /proc/version
Linux version 2.6.32-358.el6.i686 (mockbuild@c6b8.bsys.dev.centos.org) (gcc version 4.4.7 20120313 (Red Hat 4.4.7-3) (GCC) ) #1 SMP Thu Feb 21 21:50:49 UTC 2013
[jifeng@jifeng02 ~]$ head -n 1 /etc/issue
CentOS release 6.4 (Final)
[jifeng@jifeng02 ~]$

第三台：

[jifeng@jifeng03 ~]$ uname -a
Linux jifeng03 2.6.18-238.el5xen #1 SMP Sun Dec 19 14:42:02 EST 2010 x86_64 x86_64 x86_64 GNU/Linux
[jifeng@jifeng03 ~]$ cat /proc/version
Linux version 2.6.18-238.el5xen (mockbuild@x86-012.build.bos.redhat.com) (gcc version 4.1.2 20080704 (Red Hat 4.1.2-50)) #1 SMP Sun Dec 19 14:42:02 EST 2010
[jifeng@jifeng03 ~]$ head -n 1 /etc/issue
Red Hat Enterprise Linux Server release 5.6 (Tikanga)
[jifeng@jifeng03 ~]$

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