- You must have root, administrative, or root-equivalent authorization on the
Ambari Server host and all Ambari Agent hosts in the cluster.
- You must backup the Ambari Server database.
- You must make a safe copy of the Ambari Server configuration file found at
- If your cluster is SSO-enabled, do not stop Knox before upgrading Ambari.
During the Ambari upgrade, the existing
overwritten and a backup copy of
is created. If you have manually modified
(for example, to change Ambari Server heap), you must
re-apply your changes in the new file.