Step 3: Install Cluster Service Packages

Before Installing Packages

Note these considerations:

Review security vulnerabilities: Make sure that you have reviewed the list of known vulnerabilities in Security Vulnerabilities. If a vulnerability applies to your release, contact your support representative for a fix, and apply the fix immediately, if applicable.

List of Packages by Node

The following table lists the core packages to install on cluster nodes:

On These Nodes	Install These Packages
On all [compute] cluster nodes	`mapr-fileserver`
On designated cluster nodes	`mapr-cldb` `mapr-zookeeper` `mapr-mastgateway` `mapr-nfs` or `mapr-loopbacknfs`^* `mapr-webserver` `mapr-apiserver` `mapr-gateway`
On client machines that run Hadoop commands that are not already part of the cluster	`mapr-client`

^*See NFS Considerations.

Warning: This table is a rough guide and does not include the additional non-data-fabric packages required for internal Package Dependencies or Hadoop ecosystem components.

Install the packages based on a thorough plan. For example cluster designs, see Example Cluster Designs.

To install the HPE Ezmeral Data Fabric, select one of the installation methods in the subsequent topics, depending on your operating system.

NFS Considerations

When you install mapr-nfs, NFSv3 is installed. To install NFSv4, you must use the mapr-nfs4server package. NFS is not secure by default. If you wish to configure NFSv4 server to work with Kerberos servers, you must first install Active Directory and Kerberos servers. For more information, see Installing NFS for the HPE Ezmeral Data Fabric and Configuring NFSv4 Server for Kerberos.

Consider installing mapr-loopbacknfs if you need a secure POSIX client. Note that the Installer installs mapr-loopbacknfs on all nodes in the cluster when Enable NFS is not specified. For more information about mapr-loopbacknfs, see MapR POSIX Clients.

Hadoop and YARN Packages

With Release 6.2.0, Hadoop and YARN packages moved into the MEP repository. For more information, see Installing Hadoop and YARN.

Installing from a Repository

Before installing from the repository, change to the root user or use sudo.

On RedHat, CentOS, or Oracle Linux, use the yum command to install the services that you want to run on the node.
Syntax and Example
```
yum install <package_name> <package_name> <package_name> 
```
```
yum install mapr-fileserver mapr-webserver
```
On SUSE, use the zypper command to install the services that you want to run on the node.
Syntax and Example
```
zypper install <package_name> <package_name> <package_name>
```
```
zypper install mapr-fileserver mapr-webserver
```
On Ubuntu, use the apt-get commands to update the Ubuntu package cache and install the services that you want to run on the node.
1. Update the Ubuntu package cache:
```
apt-get update 
```
2. Install the services:
  Syntax and Example
```
apt-get install <package_name> <package_name> <package_name> 
```
```
apt-get install mapr-fileserver mapr-webserver
```

Installing from a Local Repository

Before installing from the repository, change to the root user or use sudo.

On RedHat, CentOS, Oracle Linux, or SUSE, use rpm command to install the appropriate packages for the node:
1. Change the working directory to the location where the rpm package files are located.
2. Install the services:
  Syntax and Example
```
yum install <package_file> <package_file> <package_file>
```
```
yum install /path/to/mapr-core-<version>.x86_64.rpm mapr-cldb-<version>.x86_64.rpm \
              mapr-resourcemanager-<version>.x86_64.rpm mapr-webserver-<version>.x86_64.rpm \
```
  Note: Replace <version> with the exact version string found in the package filename.
On Ubuntu, use the dpkg command to install the appropriate packages for the node.
1. Change the working directory to the location where the deb package files are located.
2. Install the services:
  Syntax and Example
```
dpkg -i <package_file> <package_file> <package_file>
```
```
dpkg -i mapr-core-<version>.x86_64.rpm mapr-cldb-<version>.x86_64.rpm \
              mapr-resourcemanager-<version>.x86_64.rpm mapr-webserver-<version>.x86_64.rpm \
```
  Note: Replace <version> with the exact version string found in the package filename.

Installing from Package Files

When you install from package files, you must manually pre-install any dependency packages in order for the installation to succeed. Most data-fabric packages depend on the package mapr-core. Similarly, many Hadoop ecosystem components have internal dependencies. See for details.