Before You Install or Upgrade Overview
The pre-install, install, and post-install tasks that you perform depend on your business requirements and Hadoop environment. Before you begin pre-install tasks, you need to understand the information required and the tasks that you need to perform during the installation and configuration process.
Some prerequisite tasks are required for all installations and upgrades. Some tasks depend on the following environmental factors:
- •Hadoop distribution and installation package
- •Single node or cluster environment
- •Configuration through web interface or SSH
- •Connections required
- •Sqoop connectivity
- •Run-time engines