Upgrading from CDH 4 to CDH 5
: 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:
: 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 1 (MRv1) to MapReduce 2 (MRv2, YARN) for important information and instructions.
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