Replace an OBServer node

OceanBase Cloud Platform (OCP) allows you to replace an OBServer node. Generally, this operation is performed to replace a damaged node. The number of OBServer nodes in the cluster remains unchanged after the replacement. To replace an OBServer node, you must perform the STOP SERVER and ADD SERVER operations, which can take a long time.

Note

OceanBase Database does not support OBServer node replacement by using command lines.

Prerequisites

• Your OceanBase cluster can be managed in the OCP console.

  If the cluster has not been added to OCP, request the administrator to add the cluster. For more information, see the Take over a cluster topic in the OCP User Guide of the corresponding version.

• You have the permissions to manage the cluster.

  If you do not have the permissions to manage the cluster, request the administrator to assign the required role. For more information, see the Edit a user topic in the OCP User Guide of the corresponding version.

Procedure

1. Log on to the OCP console. The Clusters page automatically appears.

2. In the Clusters list, find the target cluster and click the its name to go to the Overview page of the cluster.

3. In the OBServers list, find the row that contains the target OBServer node, and click Replace in the Actions column.

   

4. In the dialog box that appears, select a new host and click Replace.

   Note

   You can select only a host that matches the hardware architecture of the current cluster.