Sometimes, an in-place upgrade may be preferable to a migration, or it may be that a migration cannot be done, such as when:

• There is no additional hardware capacity available.
• There are multiple clusters where the upgrade can be tested in lower-priority environments.
• The workloads may be more tolerant of downtime, such as for a single tenant cluster.
• There are not multiple types of jobs running in the cluster.

Upgrade tools include:

Cloudera Manager 7.5.4

For CDH users, Cloudera Manager 7.5.4 facilitates:

• The upgrade from previous versions of Cloudera Manager
• The upgrade from the prior runtime to the current runtime with all the components

Apache Ambari

Manages upgrades for HDP users

In order to avoid potential compatibility issues, an upgrade is typically accomplished with a professional services engagement. In the current release, CDP Private Cloud Base 7.1.7, upgrades are supported from:

• CDP Private Cloud Base 7.0
• CDH 5.13 to 5.16
• CDH 6.1 to 6.3
• HDP 2.6.5 or 3.1.5

An overview of the migration process is shown in Upgrading to CDP Private Cloud Base.