Setting up the Environment

To deploy your Acceldata stack using Ambari, you must prepare your deployment environment accordingly.

For healthy working of Hadoop services in ODP, ensure that /tmp volume is mounted as exec. If you are using a non-exec mount, refer to Troubleshooting ODP documentation.

Set Up Service User Accounts

Each service requires a service user account. The Ambari Cluster Install wizard creates and preserves any existing service user accounts. It also uses these accounts when configuring Hadoop services. The service user account creation applies to service user accounts on the local operating system and to LDAP/AD accounts.

You can use the following steps to set up the environment:

• Configuring Password-less SSH
• Enable NTP on Cluster and Browser Host
• Edit the Host File and Set the Hostname
• Edit the Network Configuration File
• Configuring iptables
• Disable SELinux, PackageKit, and check the umask Value