Apache Ambari Operations
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Regenerate Key tabs

As a Cluster administrator, you can regenerate the key tabs required to maintain Kerberos security in your cluster.


Before regenerating key tabs in your cluster:

  • your cluster must be Kerberos-enabled

  • you must have KDC Admin credentials


  1. Browse to Admin > Kerberos.

  2. Click Regenerate Kerberos.

  3. Confirm your selection to proceed.

  4. Ambari connects to the Kerberos Key Distribution Center (KDC) and regenerates the key tabs for the service and Ambari principals in the cluster. Optionally, you can regenerate key tabs for only those hosts that are missing key tabs: for example, hosts that were not online or available from Ambari when enabling Kerberos.

  5. Restart all services.

More Information

Disable Kerberos

Configuring Ambari and Hadoop for Kerberos

Managing KDC Admin Credentials