2. Migrate to Ambari Alerts and Metrics

As part of Ambari 2.0, Ambari includes built-in systems for alerting and metrics collection. Therefore, when upgrading to Ambari 2.0, the legacy Nagios and Ganglia services must be removed and replaced with the new systems.

[Important]Important

We highly recommended that you perform and validate this procedure in a test environment prior to attempting the Ambari upgrade on production systems.