This CDH 5 Installation Guide is for Apache Hadoop developers and system administrators interested in Hadoop installation. It describes how to install and configure version 5 of CDH, Cloudera's 100% open source platform containing Apache Hadoop and related projects (CDH 5), and how to deploy it on a cluster.

The guide covers the following major topics.

  Note: To install a release earlier than the current CDH 5 release (for example if you want to add new nodes to a cluster without upgrading the cluster to the latest release), follow these instructions.

Upgrade tasks:

• Upgrade from CDH 4 to CDH 5. Use these instructions if you are currently running a CDH 4 release; or
• Upgrade from a CDH 5 Beta Release. Use these instructions if you are currently running a CDH 5 Beta release; or
• Upgrade from CDH 5.0.0 or later. Use these instructions if you are currently running CDH 5.0.0 or later.
• Upgrade components. Upgrade all installed components (see the list below) after upgrading core Hadoop.

  Note: Use these instructions to migrate data from a CDH 4 cluster to a CDH 5 cluster.