DTS allows you to add or remove objects for change tracking in the consumption process. This topic describes how to modify objects for change tracking.

Note

  • After you add an object, the change tracking task pulls the incremental data of the new object from the time when the modification takes effect.
  • After you remove an object, if the change tracking client can tracks data changes of the removed object, you need to filter the object in the change tracking client.

Procedure

  1. Log on to the DTS console.
  2. In the left-side navigation pane, click Change Tracking.
  3. At the top of the Change Tracking Tasks page, select the region where your change tracking instance resides.Select a region
  4. Find the target instance and click Modify Required Objects in the Actions column.
  5. In the Select Required Objects step, you can add and remove objects for change tracking. Modify objects for change tracking
    • Add objects for change tracking

      In the Required Objects section, select the required objects and click the Right arrow button to add the objects to the Selected section.

    • Remove objects for change tracking

      In the Selected section, select the objects to be removed and click the Left arrow button to move the objects to the Required Objects section.

  6. In the lower-right corner of the page, click Save and Precheck.
    Note
    • A precheck is performed before you can start the change tracking task. You can start the change tracking task only after the task passes the precheck.
    • If the task fails the precheck, click the Information icon icon next to each failed item to view details. Fix the issues based on the instructions and run the precheck again.
  7. Close the Precheck dialog box after the following message is displayed: The precheck is passed.

After the change tracking task is created, DTS performs initial change tracking, which requires about one minute to complete. After the initial change tracking is complete, you can use the tracked data for subsequent operations. For more information, see Use a Kafka client to consume tracked data.