After you create a cluster, you can give it a new name.
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On the Ambari Admin page, in , enter up to 80 alphanumeric characters to rename your cluster.
 | Note |
|---|
If you plan to Kerberize the cluster, consider limiting the cluster name (to
12 characters or less), to accommodate the fact that Kerberos principals will be
appended to the cluster name string and that some identity providers impose a
limit on the total principal name length. |
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Click Save.
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Confirm.
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Optional step(s)
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IF you are running Ranger: Edit each service name to match the new
cluster name.
If you do not rename each service to include the new cluster name, Ranger
automatically creates a new repository using the new cluster name that
contains only the default policies. In this case, to recover your original
data, export the customized service policy repository, and then import that
repository to overwrite the default policy list generated by Ranger. See
Importing and Exporting Resource-based policies for more detailed
import and export steps.
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IF your cluster is Kerberos-enabled: Regenerate keytabs.
| Note |
|---|
Regenrating keytabs will incur cluster downtime. |
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Restart Ambari server and the Ambari agents.
After renaming the cluster, alert checks must be re-queued on the agents.
Therefore, you must restart Ambari Server and the Ambari Agents for the change to
take effect.
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Adjust any API calls you make to use the new name.
Changing the name of the cluster changes the name of the Ambari REST API resource
for the cluster.
