Auto-recovery in Ambari is a useful way of getting cluster components restarted automatically in the event that a component fails (without the need for human intervention).
Ambari 2.4.0 introduced dynamic auto-recovery, which allows auto-start properties to be configured without needing an ambari-agent / ambari-server restart. Currently, the simplest way to manage the auto-recovery features within Ambari is via the REST API (documented within this article), although on-going work in the community will bring the feature to the UI: https://issues.apache.org/jira/browse/AMBARI-2330
Check Auto-Recovery Settings
To check if auto-recovery is enabled for all components, run the following command on the Ambari server node: