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Read more about Ambari Alerts framework here in the Alerts wiki page and the alerts.json format in the Alerts definition documentation.

Kerberos

Ambari is capable of enabling and disabling Kerberos for a cluster. To inform Ambari of the identities and configurations to be used for the service and its components, each service can provide a kerberos.json file.

Read more about the Kerberos support and the Kerberos Descriptor in the Automated Kerberization wiki page and the Kerberos descriptor in the Kerberos Descriptor documentation.

Metrics

Ambari provides the Ambari Metrics System ("AMS") service for collecting, aggregating and serving Hadoop and system metrics in Ambari-managed clusters.

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A service can add a list of quick links to the Ambari web UI by adding a quicklink quick links JSON file. Ambari server parses the quicklink quick links JSON file and provides its content to the Ambari web UI.  The UI can calculate quick link URLs based on that information and populate the quicklinks quick links drop-down list accordingly. 

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