Data Collection and Environment Preparation

Before deploying a cluster, you must have the following information:

• The fully qualified domain name (FQDN) of each host in your system. The Ambari Cluster Install wizard supports using IP addresses. Use the following command to check or verify the FQDN of a host: hostname -f
• The list of components you want to set up on each host.
• The base directories you want to use as mount points for storing:
  • NameNode data
  • DataNode data
  • Secondary NameNode data
  • Kafka data
  • YARN data
  • ZooKeeper data
  • Various log, pid, and db files, depending on your install type