3.2.2. Instructions - Hortonworks Data Platform

Temporarily reconfigure your firewall to allow Internet access from your mirror server host.

Execute the following command to download the appropriate Hortonworks yum client configuration file and save it in /etc/yum.repos.d/ directory on the mirror server host.

Table 4.4. Deploying HDP - Option II
Cluster OS	HDP Repository Tarballs
RHEL/ CentOS 5.x	HDP Repository: wget http://public-repo-1.hortonworks.com/HDP-1.2.0/repos/centos5/hdp.repo -O /etc/yum.repos.d/hdp.repo HDP-Utils Repository (Optional): wget http://public-repo-1.hortonworks.com/HDP-UTILS-1.1.0.15/repos/centos5/hdp-util.repo -O /etc/yum.repos.d/hdp-util.repo Ambari Repository (Optional): wget http://public-repo-1.hortonworks.com/ambari/centos5/1.x/GA/ambari.repo -O /etc/yum.repos.d/ambari.repo
RHEL/ CentOS 6.x	HDP Repository: wget http://public-repo-1.hortonworks.com/HDP-1.2.0/repos/centos6/hdp.repo -O /etc/yum.repos.d/hdp.repo HDP-Utils Repository (Optional): wget http://public-repo-1.hortonworks.com/HDP-UTILS-1.1.0.15/repos/centos6/hdp-util.repo -O /etc/yum.repos.d/hdp-util.repo Ambari Repository (Optional): wget http://public-repo-1.hortonworks.com/ambari/centos6/1.x/GA/ambari.repo -O /etc/yum.repos.d/ambari.repo
SLES 11	HDP Repository: wget http://public-repo-1.hortonworks.com/HDP-1.2.0/repos/suse11/hdp.repo -O /etc/yum.repos.d/hdp.repo HDP-Utils Repository (Optional): wget http://public-repo-1.hortonworks.com/HDP-UTILS-1.1.0.15/repos/suse11/hdp-util.repo -O /etc/yum.repos.d/hdp-util.repo Ambari Repository (Optional): wget http://public-repo-1.hortonworks.com/ambari/suse11/1.x/GA/ambari.repo -O /etc/yum.repos.d/ambari.repo

	Note
	If you are using Ambari to perform the HDP installation, you will need to setup the Ambari repository using the information provided above.

Create an HTTP server.

On the mirror server, install an HTTP server (such as Apache httpd) using the instructions provided here.
Activate this web server.
Ensure that the firewall settings (if any) allow inbound HTTP access from your cluster nodes to your mirror server.
Note
If you are using EC2, make sure that SELinux is disabled.

On your mirror server, create a directory for your web server.

For example, from a shell window, type: mkdir –p /var/www/html/hdp/
If you are using a symlink, enable the followsymlinks on your web server.

Copy the contents of entire HDP repository for your desired OS from the remote yum server to your local mirror server.

Continuing the previous example, from a shell window, type:
```
cd /var/www/html/hdp
reposync -r HDP-1.2.0 
reposync -r HDP-UTILS-1.1.0.15
```
You should now see both an HDP-1.2.0 directory and an HDP-UTILS-1.1.0.15 directory, each with several subdirectories.

OPTIONAL: If using Ambari:

reposync –r ambari-1.x
reposync –r Updates-ambari-1.x

Generate appropriate metadata.

This step defines each directory as a yum repository.

From a shell window, type:

createrepo /var/www/html/hdp/HDP-1.2.0 
createrepo /var/www/html/hdp/HDP-UTILS-1.1.0.15

OPTIONAL: If using Ambari:

createrepo /var/www/html/hdp/ambari-1.x
createrepo /var/www/html/hdp/Updates-ambari-1.x

You should see a new folder called repodata inside the HDP directories. If using Ambari, you should also see the repodata directory under the ambari-1.x and Updates-ambari-1.x directories.

Verify the configuration.

The configuration is successful, if you can access the above directory through your web browser.
To test this out, browse to the following location: http://yourwebserver/hdp/HDP-1.2.0/
You should now see directory listing for all the HDP components.

At this point, it is okay to disable external Internet access for the mirror server, so that the mirror server is once again entirely within your data center firewall.

Depending on your cluster OS, configure the yum or zypper clients on all the nodes in your cluster

For RHEL and CentOS:
1. Edit the hdp.repo file (downloaded here: /etc/yum.repos.d/), changing the value of the baseurl property to the local mirror URL. For example, http://yourwebserver/hdp/HDP-1.2.0/
2. Use scp or pdsh to copy the client yum configuration file to /etc/yum.repos.d/ directory on every node in the cluster.
For SLES:
1. Edit the hdp.repo file (downloaded here: /etc/yum.repos.d/), changing the value of the baseurl property to the local mirror URL. For example, http://yourwebserver/hdp/HDP-1.2.0/repos/suse11
2. On every node, invoke the following command:
```
zypper addrepo -r http://yourwebserver/hdp/HDP-1.2.0/repos/suse11/hdp.repo
```

OPTIONAL: If using Ambari to perform HDP Installation, configure the Ambari repository on all the nodes in your cluster.

Edit the ambari.repo file (downloaded here: /etc/yum.repos.d/), changing the value of the baseurl property to the local mirror URL.
For example, http://yourwebserver/hdp/ambari/os/1.x/GA, where os is either centos5, centos6, or suse11
- For RHEL and CentOS: Use scp or pdsh to copy the client yum configuration file to /etc/yum.repos.d/ directory on every node in the cluster.
- For SLES: On every node, invoke the following command:
```
zypper addrepo -r http://yourwebserver/hdp/ambari/suse11/1.x/GA/ambari.repo
```
Verify the configuration by deploying Ambari server on one of the cluster nodes.
```
yum install ambari-server
```

If your cluster runs CentOS or RHEL, and if you have multiple repositories configured in your environment, deploy the following plugin on all the nodes in your cluster.

Install the plugin.
- For RHEL and CentOS v5.x
```
yum install yum-priorities
```
- For RHEL and CentOS v6.x
```
yum install yum-plugin-priorities
```
Edit the /etc/yum/pluginconf.d/priorities.conf file to add the following:
```
[main]
enabled=1
gpgcheck=0
```

	Note
	If you are using EC2, make sure that SELinux is disabled.