Create and uninstall OBDNS

This topic describes how to create and uninstall OBDNS in the OceanBase Admin Toolkit (OAT) console.

Prerequisites

Before you create OBDNS, make sure that:

• You have installed and logged on to OAT as a super administrator or an O&M engineer. For more information, see Install OAT.
• You have added a server where OBDNS is to be installed. For more information, see Add a server.
• You have added an OBDNS image file.
• The server meets the requirements for installing OBDNS.

Create OBDNS

To create OBDNS, perform the following steps:

1. In the left-side navigation pane, choose Product Service > Component Management.

2. On the Component Management page, click Create Component in the upper-right corner, and choose Create OBDNS.

3. On the Create OBDNS page, specify the related parameters.

   The following table describes the basic parameters of OBDNS.

   Parameter	Description
   OBDNS Image	The Docker image of OBDNS.
   Component Name	The name of the component, which must be unique. Default value: obdns.
   Server	The IP address of the server where OBDNS is to be installed.
   CPU	The number of CPU cores allocated to OBDNS. Default value: 4C.
   Memory	The memory allocated to OBDNS. Default value: 128G.
   Basic Domain Name	The base domain name of OBDNS.
   Log Directory	The data persistence directory of OBDNS. Default value: /home/admin/logs/obdns.

   The following table describes the data storage parameters of OBDNS.

   Parameter	Description
   Peer Port	The peer port of the internal ETCD. Default value: 2380.
   Client Port	The port used by the internal ETCD to receive client requests. Default value: 2379.

4. After you set the parameters, click Submit.

   You can also click Reset to restore the default configurations.

Uninstall OBDNS

To uninstall OBDNS, perform the following steps:

1. In the left-side navigation pane, choose Product Service > Product Management.

2. Find the target OBDNS service and click Uninstall in the Operation column.

   You can also search for the service by name.

3. In the confirmation dialog box that appears, click Uninstall.

   OAT displays a message indicating that the service is being uninstalled. OAT also creates an uninstall task. In the confirmation dialog box that appears, you can click the task ID to view the task progress.

   Notice

   If OBDNS is associated with another product, the uninstall will fail.

What to do next

After you install OBDNS, you can install other products in the OceanBase ecosystem on multiple nodes.