This is the documentation for CDH 5.1.x.
Documentation for other versions is available at Cloudera Documentation.

Upgrading from CDH 4 to CDH 5

  Note:

If you are using Cloudera Manager to manage CDH, do not use the instructions in this section.

Use the following information and instructions to upgrade to the latest CDH 5 release from a CDH 4 release.:
  Important:

This involves uninstalling the CDH 4 packages and installing the CDH 5 packages.

  Note:

If you are migrating from MapReduce v1 (MRv1) to MapReduce v2 (MRv2, YARN), see Migrating from MapReduce v1 (MRv1) to MapReduce v2 (MRv2, YARN) for important information and instructions.