Modern Big Data Processing with Hadoop

Installing the Ambari server 

The first step in creating the Hadoop cluster is to get our Ambari server application up and running. So, log in to the master node with SSH and perform the following steps in order:

1. Download the Ambari YUM repository for CentOS 7 with this command:

[user@master ~]$ wget http://public-repo-1.hortonworks.com/ambari/centos7/2.x/updates/2.6.1.5/ambari.repo

2. After this step, we need to move the ambari.repo file to the /etc/yum.repos.d directory using this command:

[user@master ~]$ sudo mv ambari.repo /etc/yum.repos.d/

3. The next step is to install the ambari-server package with the help of this command:

[user@master ~]$ sudo yum install ambari-server -y

4. We are going to use a MySQL server for our Ambari server. ...