Replace the arbitration service for a cluster

This topic describes how to replace a failed arbitration service with a new one when the server hosting the arbitration service fails.

Prerequisites

• Make sure that you have the following permissions:

  • Resource permissions: Cluster maintenance permission.
  • Menu permissions: Permission on the Overview menu of clusters.

• The new arbitration service is in the Running state.

• Log streams of the tenants associated with the arbitration service are not downgraded.

• The level-1 and level-2 version numbers of the OceanBase cluster are the same as those of the new arbitration service. For example, the version numbers of both the OceanBase cluster and the new arbitration service are V4.2.x.x.

Procedure

1. Log in to the OCP console.

2. In the left-side navigation pane, click Clusters. The Clusters tab automatically appears.

3. On the Clusters page, find the target cluster and click its name.

4. In the Arbitration Service List section on the Overview page of the cluster, find the arbitration service that you want to replace and click Replace in the Actions column.

5. In the panel that appears, select an arbitration service. You can also click Create Service at the bottom of the drop-down list to create an arbitration service for the cluster. For more information, see Create an arbitration service.

   Notice

   During the replacement, the arbitration service is unavailable, which may affect the high availability feature of the tenant replicas.

6. Click Submit.