Ambari and HDP Upgrade Checklist Before upgrading Ambari and HDP, you must review the checklist. Ambari upgrade checklistBefore performing the upgrade, review the list of items to ensure your cluster operation is healthy.Download cluster blueprints without hostsEnsure you download the cluster blueprints before you begin the upgrade.HDP upgrade checklistYou must ensure that your HDP cluster satisfies specific prerequisites before initiating the upgrade process.Checklist for large clustersIf you have a large cluster with a large data volume, then make sure that you configure the Ambari NameNode restart timeout parameter.Before upgrading any clusterTo perform an HDP intermediate bits upgrade using Ambari, your cluster must meet the following prerequisites. Meeting these prerequisites is essential for Ambari to know that the cluster is in a healthy operating mode and can successfully manage the upgrade process.Changes to Ambari services and views During the process of upgrading to Ambari 7.1.x and HDP intermediate bits, additional components are added to your cluster, and deprecated services and views are removed.HDP Core component version changesVersion number changes for the core components included in HDP 3.1.5.x. Upgrading the cluster’s underlying OSOperating system requirements
