Upgrading Ambari

You must understand the considerations and the process to upgrade from the current version of Ambari to Ambari 7.1.x.x.

Before you upgrade Ambari
You must be aware of the exact steps and understand the interdependencies and order of the steps so that you can adjust and account for any special configurations for your cluster before starting the Ambari upgrade process.
Setting up a local repository
You need to set up a local repository, update the version repository base URLs, and edit the repository configuration file.
Backup Ambari
You must back up the current Ambari database. It creates a copy of the current Ambari database and meta information.
Ambari Behavioral changes
Behavioral changes denote a marked change in behavior from the previously released version to this version of Ambari. Between Ambari 2.6.x and Ambari 7.1.x there were changes implemented in 2.7.x versions.
Ambari Properties backup
Prior to upgrading from Ambari 2.6.2.x to Ambari 7.1.x.x, you must make a copy of the Ambari Server configuration file so that you can reapply any configuration changes you have done earlier to the new file.
Review Ambari UI and the Quick Links
Ensure to review the Ambai UIs and quick links prior to the upgrade. This check is helpful to compare the user interface state post upgrade.
Upgrade to Ambari 7.1.x.0
After reviewing the information related to Ambari UI and the Quick Links, and backing up the Ambari Server configuration file, perform the recommended steps for upgrading Ambari.
Download cluster blueprints
Ensure you download the cluster blueprints before you begin the upgrade.
Mandatory Post-Upgrade Tasks
You must ensure to complete the post-upgrade tasks after upgrading to Ambari 7.1.x.x.