Ubuntu12.04 install Hadoop

Install Hadoop in Ubuntu12.04. Read more: Install and deploy Openstackhttp: // container on Ubuntu12.10.

Install Hadoop in Ubuntu 12.04.

Related reading:

Install and deploy Openstack http://www.linuxidc.com/Linux/2013-08/88184.htm on Ubuntu 12.10

Ubuntu 12.04 OpenStack Swift single-node deployment manual http://www.linuxidc.com/Linux/2013-08/88182.htm

Installing the Swift component of OpenStack on Ubuntu-installing openstack object storage http://www.linuxidc.com/Linux/2013-08/88180.htm

OpenStack Hands on lab series http://www.linuxidc.com/Linux/2013-08/88170.htm

1. Create a hadoop user group and user a. Create a hadoop User Group

Sudo addgroup hadoop

sudo addgroup hadoop

B. Create a hadoop user

Sudo adduser-ingroup hadoop

sudo adduser –ingroup hadoop hadoop

 

C. Edit the/etc/sudoers file and add permissions to hadoop users.

Sudo vim/etc/sudoers

sudo vim /etc/sudoers

Grant the same root permission to hadoop users

Hadoop ALL = (ALL: ALL) ALL

hadoop ALL=(ALL:ALL) ALL

Note: The/etc/sudoers file may be a readonly file. After modification, use ": wq !" Save

2. Install JDK

JDK installation tutorials have a lot of online materials, so they are omitted.

Note: Do not install OpenJDK. Download JDK from the official Oracle website (Oracle JDK cannot be installed using apt-get install)

3. Install the ssh service

Sudo apt-get install openssh-server

sudo apt-get install openssh-server

4. Set ssh password-less Login

Run the su-command to switch to the hadoop user.

Su-hadoop

su – hadoop

Two ssh-generated keys are available: rsa and dsa. The rsa method is used by default.

A. Create an ssh-key (using rsa)

Ssh-keygen-t rsa-P ""

ssh-keygen -t rsa -P ""

B. Enter ~ In the/. ssh/directory, append id_rsa.pub to the authorized_keys authorization file.

1. Cd ~ /. Ssh
2. Cat id_rsa.pub> authorized_keys

cd ~/.sshcat id_rsa.pub >> authorized_keys

C. log on to localhost without a password

Ssh localhost

ssh localhost

 

D. Exit the ssh connection.

1. Exit

exit

 

For more details, see the next page: http://www.linuxidc.com/Linux/2013-08/88187p2.htm