Shulou(Shulou.com)06/03 Report--

1. Create a folder MyApps in the home directory

two。 Extract the compressed file to this directory

The command format is: tar-zxvf compressed file-C decompression path

3. Configure the network environment

4.1 temporarily modify the hostname

Temporarily set hostname, which will expire after the system is rebooted

4.2 permanently modify the hostname

Vi / etc/sysconfig/network modification file

Cat / etc/sysconfig/network view the modified file

Source / etc/sysconfig/network executes the modified file

Hostname hostname causes the set hostname to take effect immediately

Hosname View Hostname

5. Configure the hosts file

Ifconfig check ip address: 192.168.159.10

Vi / etc/hosts Open the hosts file and add configuration: 192.168.159.10 HadoopMaster

Cat / etc/hosts View configuration

6. Turn off the firewall

View the status of the firewall: service iptables status

Temporarily turn off the firewall: service iptables stop

Permanently shut down the firewall of a certain startup mode: chkconfig iptables-- level 4 off

Permanently turn off the firewall of all startup modes: chkconfig iptables off

7. Configure environment variables for jdk and Hadoop

Open the configuration file: vi / etc/profile

Add configuration text at the end of the file:

Refresh a profile file: source / etc/profile

Close selinux: vi / etc/sysconfig/selinux SELINUX=disabled

8. Open the path / home/hadoop/MyApps/hadoop-2.4.1/etc/hadoop where Hadoop is located

Configure the following files:

8.1core-site.xml

8.2 add export JAVA_HOME=Java path in hadoop-env.sh

8.3 profile hdfs-site.xml Fil

8.4 configure the mapred-site.xml file

8.5 configure yarn-site.xml Fil

9. Format namenode: hdfs namenode-foormat

10. Start Hadoop

11. Verify that it is successful

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