Add a read-only replica to a tenant

This topic provides instructions on how to add a read-only replica to a tenant.

Prerequisites

You have created a read-only replica to the instance. For more information, see Add a read-only replica to an instance.

Procedure

1. Log in to the OceanBase Cloud console.

2. In the left-side navigation pane, click Instances.

3. In the instance list, find the target instance, and click the instance name to go to the Overview page of the instance.

4. In the left-side navigation pane, click Tenants.

5. In the tenant list, find the target tenant, and select ··· > Manage Read-only Replicas in the Actions column.

6. In the Manage Read-only Replicas dialog box, manage the read-only replicas for the tenant. You can enable the Tenant Read-only Replica switch to add a read-only replica for the tenant.

   Note

   • You can create a read-only replica for a tenant only when the number of nodes in the read-only replica is greater than or equal to the number of units of the tenant and the remaining resources on each node of the read-only replica are greater than or equal to the resources of the tenant. If resource insufficiency is detected, we recommend that you scale up the node specification of the read-only replica first. For more information, see Manage read-only replicas.
   • We recommend that you set the specification of a read-only replica of a tenant to be the same as that of the instance. If they have different specifications, the read-only replica may fail to be added.

7. Click OK.