Hadoop-1.2.1 Cluster virtual machine setup (UP)--environment preparation

VM Virtual MachinesConfiguration:

NAT Network Configuration Reference: http://www.cnblogs.com/gongice/p/4337379.html install pre-Hadoop equipment (on each host): Configure sudo (optional):

[[email protected] Hadoop] # chmod u+w/etc/sudoers [[email protected] Hadoop] # vi/etc/sudoers

Add a row of data: Hadoop all= (All) Nopasswd:all， HadoopFor sudo password-free user host name setting:

[[email protected] Hadoop] # vi/etc/hosts127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4:: 1          localhost localhost.localdomain localhost6 localhost6.localdomain6192.168.153.101 hadoop01 192.168.153.102 hadoop02192.168.153.103 hadoop03

Close iptable:

[[email protected] Hadoop] # sudo chkconfig iptables off [[email protected] Hadoop] # sudo/etc/init.d/iptables Stop iptables:flushing firewall rules:                         [OK filter [OK  ]iptables:unloading modules: [OK]    

To turn off SELinux:

[[email protected] install]#sudo vi/etc/selinux/config#This file controls the state of the SELinux on the system.#selinux= can take one of these three values:#Enforcing-selinux security policy is enforced.#Permissive-selinux prints warnings instead of enforcing.#disabled-no SELinux policy is loaded.selinux=Disabled#Selinuxtype= can take one of these the values:#targeted-targeted processes is protected,#Mls-multi level Security protection.selinuxtype=targeted

NTP service configuration: Reference: http://www.cnblogs.com/gongice/p/4338204.html Configure Login-free: Generate public and private keys on each host:

[Email protected] ~]$ mkdir ~/. SSH [Hadoop@hadoop01 ~]$ chmod-~/. SSH [Hadoop-F ~/.ssh/
   
    ID_DSA [Hadoop @hadoop02 ~]$ mkdir ~/
    . SSH [Hadoop@hadoop02 ~]$ chmod ' ~/
    . SSH [Hadoop-
    F 
    
    
     - 
    F ~/.SSH/ID_DSA
   

Copy the id_dsa.pub of the slave host to the master host:

[email protected]. ssh]$ SCP id_dsa.pub [email protected]:/home/hadoop/.ssh/id_dsa.pub.hadoop02[hadoop@ hadoop03. ssh]$ SCP id_dsa.pub [email protected]:/home/hadoop/.ssh/ID_DSA.PUB.HADOOP03

Masters All Id_dsa.pub concentrated:

[email protected]. ssh]$  cat id_dsa.pub >> authorized_keys[hadoop@hadoop01. ssh]$  Cat Id_ DSA.PUB.HADOOP02 >> authorized_keys[hadoop@hadoop01. ssh]$  Cat id_dsa.pub.hadoop03 >> Authorized_keys

Distribute the Authorized_keys on the master host to each slave host:

[email protected]. ssh]$ SCP Authorized_keys [email protected]:/home/hadoop/.ssh/authorized_keys[hadoop@ Hadoop01. ssh]$ SCP Authorized_keys [email protected]:/home/hadoop/.ssh/Authorized_keys

To install the JDK:

sudo tar-xvf jdk-7u55-linux--R root:root jdk1.7.0_55

JDK1.7.0_55 is generated after successful installation, confirming that the directory permission is drwxr-xr-x (755)

vi/etc/profileexport java_home=/usr/lib/java/jdk1.7. 0_55export PATH=$JAVA _home/bin: $PATH

[Email protected] java]$ source/etc/profile[hadoop@hadoop01 java]$ java-"1.7.0_55  "1.7.0_55-64-bit Server VM (build 24.55-b03, Mixed mode)

Hadoop-1.2.1 Cluster virtual machine setup (UP)--environment preparation