Upgrading from CDH 4 to CDH 5
If you are using Cloudera Manager to manage CDH, do not use the instructions in this section.
- If you are running Cloudera Manager 4.x, you must upgrade Cloudera Manager to version 5 first, as Cloudera Manager 4 cannot manage CDH 5; see Upgrading Cloudera Manager.
- Follow directions in the current version of Managing Clusters with Cloudera Managerto upgrade CDH 4 to CDH 5 in a Cloudera-managed deployment.
This involves uninstalling the CDH 4 packages and installing the CDH 5 packages.
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.