Upgrading HDP to Cloudera Runtime 7.1.x

To complete the first stage of upgrading from HDP 3.1.5.x to CDP Private Cloud Base, you must upgrade to Cloudera Runtime 7.1.x.

HDP Prerequisites
Before upgrading from HDP 3.1.5.x to the Cloudera Runtime 7.1.x, you must review and complete the prerequisites.
Backup HDP Cluster
Cloudera recommends that you back up the HDP 3.1.5.x services managed by Ambari 2.7.5.x.
Backup databases
To continue upgrading to Cloudera Runtime 7.1.x, you must have completed the HDP prerequisites tasks. Ensure you backup your databases before beginning the upgrade.
Pre-upgrade steps
You must complete the pre-upgrade steps for the components and services that you are going to upgrade.
Register software repositories
Before you use Ambari to perform the stack upgrade, you must register the software repositories for the new target version with Ambari and then install the software on all hosts in the cluster.
Install software on the hosts
If you have successfully registered the software repositories for the new target version with Ambari, you can now install the software on all hosts in the cluster.
Perform the HDP upgrade
After you have performed the required pre-upgrade steps and backed up all the relevant data, you can proceed with the process to upgrade your cluster to HDP intermediate bits.
Post-HDP-upgrade tasks
After the HDP cluster is upgraded to CDP Private Cloud Base, ensure that you check the cluster settings, migration, and restore settings are correct.
Troubleshooting the HDP upgrade
In the event of a problem, contacting Cloudera Support is highly recommended. Alternatively, you can perform these troubleshooting procedures.
Rollback Ambari 7.1.x to Ambari 2.7.5
You must use the backup of Ambari 2.7.5 to perform the following steps.
Rollback HDP Services from CDP 7.1.x
After Ambari rollback, you must rollback the HDP services in the following order to restore to HDP 3.1.5.