This topic describes available upgrade options, prerequisites, and the overall process. Cloudera encourages you to read through this entire document before starting the upgrade process, so that you understand the interdependencies and order of the steps. Cloudera recommends that you validate these steps in a test environment to adjust and account for any special configurations for your cluster.
The high-level process for performing an HDP intermediate bits upgrade is as
Ambari will guide you through the steps required to upgrade the HDP intermediate bits. Make
sure Ambari and the cluster are healthy, operating normally, and all service checks are
passing. Ambari 2.7.5.x supports express methods for
upgrading HDP 3.1.5.x to HDP 7.1.x.x. An Express Upgrade orchestrates the HDP upgrade in
an order that will incur cluster downtime.