The O&M and monitoring module of OceanBase Migration Service (OMS) allows you to migrate an Incr-Sync component in high availability scenarios.
Limits
You can migrate an Incr-Sync component in the Stopped or Abnormal state only when multiple servers are available in a high availability scenario.
If no node is selected during the migration, the system automatically schedules the connector to a server that has not experienced any performance bottleneck, but not necessarily with the lowest usage.
If a node is selected during the migration, the tag and quota of the server can be ignored, but the server must be able to run the Incr-Sync component.
Scenarios
In high availability scenarios, you can migrate Incr-Sync components in the following cases:
A server is replaced, and Incr-Sync components on the server need to be migrated to a new server.
The number of task processes on a heavy-loaded server needs to be reduced for load balancing.
Procedure
Log in to the OMS console.
In the left-side navigation pane, choose OPS & Monitoring > Component.
On the Component page, click the Incr-Sync tab.
On the Incr-Sync page, you can search for an Incr-Sync component by component name, server IP address, or task name.
You can filter Incr-Sync components by region and migrate the Incr-Sync components in the target region.
Click Migrate in the Actions column of the target Incr-Sync component.
(Optional) In the dialog box that appears, select a node to which you want to migrate the Incr-Sync component.
Click OK.
