Considerations for configuring High Availability on Ozone Manager

There are various factors that you must consider when configuring High Availability (HA) for the Ozone Manager (OM).

You cannot enable HA on a CDP cluster that already has Ozone configured. You must remove the configured Ozone service and reconfigure it with HA. Therefore, ensure that you back up your Ozone data before configuring HA. Also, ensure that there are no jobs running on the cluster before configuring HA.
note
For information about adding and deleting services using Cloudera Manager, see the following:
- Adding a service
- Deleting services
To reconfigure Ozone, you must define the Ozone Service ID property.
You must define the OM on at least three nodes so that one OM node is the leader and the remaining nodes are the followers. The OM nodes automatically elect a leader.