Take over OMS

This topic describes how to take over OceanBase Migration Service (OMS) in the OceanBase Admin Toolkit (OAT) console. OAT of earlier versions cannot be smoothly upgraded to the new version because the new version has been restructured. Therefore, you must use OAT of the new version to take over the services and components deployed by using OAT of earlier versions. This way, you can monitor the status of the services and components and manage their upgrades.

Prerequisites

Before you take over OMS, make sure that the following conditions are met:

• You have added the image of OMS.
• You have taken over the components on which OMS relies.
• You have added a server to take over OMS. For more information, see Add a server.
• The server meets the requirements for taking over OMS. For more information, see Plan resources for OMS.

Procedure

To take over OMS, perform the following steps:

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

2. On the Products page, click Take Over Products in the upper-right corner and choose Take Over OMS.

3. On the Take Over OMS page, configure the parameters.

   The following table describes the basic parameters of OMS.

   Parameter	Description
   OMS Image	The Docker image of OMS.
   Product Name	The name of the service, which must be unique.
   Server	The IP address of the server used to take over OMS.
   CPU	The number of CPU cores available to OMS. Default value: 8.
   Memory	The size of memory available to OMS, in GB. Default value: 20.

   The following table describes the MetaDB parameters of OMS.

   Parameter	Description
   MetaDB Type	The type of MetaDB.
   Select Created MetaDB	The existing MetaDB component to be used for OMS.

   The following table describes the InfluxDB parameters of OMS.

   Parameter	Description
   Time Series Database Storage	The type of InfluxDB.
   Select Created InfluxDB	The existing InfluxDB component to be used for OMS.

   The following table describes the load balancing parameters. The parameters are optional.

   Parameter	Description
   Load Balancing Mode	The load balancing mode.
   MetaDB TCP Proxy IP	The TCP address for connecting to MetaDB.
   MetaDB TCP Proxy Port	The TCP port number.

4. After the parameters are configured, click Submit. You can also click Reset to restore to the default configurations.

What to do next

After you take over OMS, you can upgrade OMS based on your business requirements. For more information, see Upgrade OMS.