Upgrading a Cluster

Minimum Required Role: Cluster Administrator (also provided by Full Administrator) This feature is not available when using Cloudera Manager to manage Data Hub clusters.

This topic describes how to upgrade a CDH or Cloudera Runtime cluster in any of the following scenarios:
  • From CDH 5.13 or higher to Cloudera Runtime 7.1 or higher.
  • From Cloudera Runtime to a higher version of Cloudera Runtime.
  • Upgrade CDH or Cloudera Runtime to maintenance releases.

When you upgrade a cluster, you use Cloudera Manager to upgrade the cluster software across an entire cluster using Cloudera Parcels Package-based installations are not supported for Cloudera Runtime and CDP Private Cloud Base upgrades. You must transition you CDH cluster to use Parcels before upgrading to CDP Private Cloud Base. See Migrating from Packages to Parcels.

Cluster upgrades update the Hadoop software and other components. You can use Cloudera Manager to upgrade a cluster for major, minor, and maintenance upgrades. The procedures vary depending on the version of Cloudera Manager you are using and the version of CDH or Cloudera Runtime you are upgrading to.

After completing preparatory steps, you use the Cloudera Manager upgrade wizard to complete the upgrade. If you use parcels (recommended), have enabled HDFS high availability, and have a Cloudera Enterprise license, you can perform a rolling upgrade that does not require you to take the cluster offline during the upgrade.

For cluster upgrade steps, see Upgrading the Cluster.