Apache Ambari Administration
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Understanding Cluster Roles

In Ambari 2.2 and earlier, the only roles available were Operator and Read-only. To enhance the granularity of permissions that can be granted to Ambari users, the following new, cluster-level roles are available:

Cluster User

Users assigned to the Cluster User role can view information about the cluster and its services, including configurations, service status, and health alerts. In Ambari 2.2 and earlier, this user was referred to as the Read-only user. Effectively, the cluster user is a view-only user.

Service Operator

Users assigned to the Service Operator role have control over service life cycles, such as starting and stopping services, performing service checks, and performing service-specific tasks such as rebalancing HDFS and refreshing the YARN Capacity Scheduler.

Service Administrator

Users assigned to the Service Administrator role have the same permissions as users assigned to the Service Operator role but have the added ability to configure services. This includes the ability to manage configuration groups, move service masters, and enable HA.

Cluster Operator

Users assigned to the Cluster Operator role have the same permissions as users assigned to the Service Administrator role but have the added ability to perform host-level tasks such as adding and removing hosts and components.

Cluster Administrator

Users assigned to the Cluster Administrators role have control over the relevant cluster, its hosts, and services. In Ambari 2.2 and earlier, this user was referred to as the Operator user.

Ambari Administrator

Ambari Administrator users have full control over all aspects of Ambari. This includes the ability to create clusters, change cluster names, register new versions of cluster software, and fully control all clusters managed by the Ambari instance.

The following chart compares these cluster roles:

Cluster User Service Operator Service Administrator Cluster Operator Cluster Administrator Ambari Administrator
Service-Level Authorizations
View metrics

View status information

View configurations

Compare configurations

View service alerts

Start, stop, or restart service

Decommission or recommission

Run service checks

Turn maintenance mode on or off

Perform service-specific tasks

Modify configurations

Manage configuration groups

Move to another host

Enable HA

Enable or disable service alerts

Add service to cluster

Host-Level Authorizations
View metrics

View status information

View configuration

Turn maintenance mode on or off

Install components

Add or delete hosts

Cluster-Level Authorizations
View metrics

View status information

View configuration

View stack version details

View alerts

Enable or disable alerts

Enable or disable Kerberos

Upgrade orLdowngrade stack

Ambari-level Authorizations
Create new clusters

Set service users and groups

Rename clusters

Manage users

Manage groups

Manage Ambari Views

Assign permission and roles

Manage stack versions

Edit stack repository URLs